Merge pull request #10613 from ctiller/framing_costs

Optimize framing a little
diff --git a/BUILD b/BUILD
index 70bd406..0339c87 100644
--- a/BUILD
+++ b/BUILD
@@ -35,10 +35,11 @@
 
 package(default_visibility = ["//visibility:public"])
 
-load("//bazel:grpc_build_system.bzl", "grpc_cc_library", "grpc_proto_plugin")
+load("//bazel:grpc_build_system.bzl", "grpc_cc_library",
+     "grpc_proto_plugin", "grpc_cc_libraries")
 
 # This should be updated along with build.yaml
-g_stands_for = "gentle"
+g_stands_for = "gregarious"
 
 core_version = "3.0.0-dev"
 
@@ -53,33 +54,46 @@
     ],
 )
 
-grpc_cc_library(
-    name = "grpc",
+grpc_cc_libraries(
+    name_list = ["grpc", "grpc_unsecure",],
     srcs = [
         "src/core/lib/surface/init.c",
-        "src/core/plugin_registry/grpc_plugin_registry.c",
+    ],
+    additional_src_list = [
+        [
+            "src/core/plugin_registry/grpc_plugin_registry.c",
+        ],
+        [
+            "src/core/lib/surface/init_unsecure.c",
+            "src/core/plugin_registry/grpc_unsecure_plugin_registry.c",
+        ],
     ],
     language = "c",
     standalone = True,
     deps = [
         "census",
         "grpc_base",
-        "grpc_lb_policy_grpclb_secure",
         "grpc_lb_policy_pick_first",
         "grpc_lb_policy_round_robin",
         "grpc_load_reporting",
         "grpc_max_age_filter",
-        "grpc_resolver_dns_ares",
         "grpc_resolver_dns_native",
         "grpc_resolver_sockaddr",
-        "grpc_secure",
         "grpc_transport_chttp2_client_insecure",
-        "grpc_transport_chttp2_client_secure",
         "grpc_transport_chttp2_server_insecure",
-        "grpc_transport_chttp2_server_secure",
         "grpc_message_size_filter",
         "grpc_deadline_filter",
     ],
+    additional_dep_list = [
+        [
+            "grpc_secure",
+            "grpc_resolver_dns_ares",
+            "grpc_lb_policy_grpclb_secure",
+            "grpc_transport_chttp2_client_secure",
+            "grpc_transport_chttp2_server_secure",
+        ],
+        [],
+    ],
 )
 
 grpc_cc_library(
@@ -98,32 +112,6 @@
 )
 
 grpc_cc_library(
-    name = "grpc_unsecure",
-    srcs = [
-        "src/core/lib/surface/init.c",
-        "src/core/lib/surface/init_unsecure.c",
-        "src/core/plugin_registry/grpc_unsecure_plugin_registry.c",
-    ],
-    language = "c",
-    standalone = True,
-    deps = [
-        "census",
-        "grpc_base",
-        "grpc_lb_policy_grpclb",
-        "grpc_lb_policy_pick_first",
-        "grpc_lb_policy_round_robin",
-        "grpc_load_reporting",
-        "grpc_max_age_filter",
-        "grpc_resolver_dns_native",
-        "grpc_resolver_sockaddr",
-        "grpc_transport_chttp2_client_insecure",
-        "grpc_transport_chttp2_server_insecure",
-        "grpc_message_size_filter",
-        "grpc_deadline_filter",
-    ],
-)
-
-grpc_cc_library(
     name = "grpc++",
     srcs = [
         "src/cpp/client/insecure_credentials.cc",
@@ -163,7 +151,7 @@
     standalone = True,
     deps = [
         "gpr",
-        "grpc++_base",
+        "grpc++_base_unsecure",
         "grpc++_codegen_base",
         "grpc++_codegen_base_src",
         "grpc_unsecure",
@@ -388,6 +376,10 @@
         "src/core/lib/support/backoff.h",
         "src/core/lib/support/block_annotate.h",
         "src/core/lib/support/env.h",
+        "src/core/lib/support/memory.h",
+        "src/core/lib/support/atomic.h",
+        "src/core/lib/support/atomic_with_atm.h",
+        "src/core/lib/support/atomic_with_std.h",
         "src/core/lib/support/mpscq.h",
         "src/core/lib/support/murmur_hash.h",
         "src/core/lib/support/spinlock.h",
@@ -555,7 +547,7 @@
         "src/core/lib/surface/completion_queue.c",
         "src/core/lib/surface/completion_queue_factory.c",
         "src/core/lib/surface/event_string.c",
-        "src/core/lib/surface/lame_client.c",
+        "src/core/lib/surface/lame_client.cc",
         "src/core/lib/surface/metadata_array.c",
         "src/core/lib/surface/server.c",
         "src/core/lib/surface/validate_metadata.c",
@@ -1214,12 +1206,14 @@
         "src/core/tsi/fake_transport_security.c",
         "src/core/tsi/ssl_transport_security.c",
         "src/core/tsi/transport_security.c",
+        "src/core/tsi/transport_security_adapter.c",
     ],
     hdrs = [
         "src/core/tsi/fake_transport_security.h",
         "src/core/tsi/ssl_transport_security.h",
         "src/core/tsi/ssl_types.h",
         "src/core/tsi/transport_security.h",
+        "src/core/tsi/transport_security_adapter.h",
         "src/core/tsi/transport_security_interface.h",
     ],
     external_deps = [
@@ -1231,8 +1225,12 @@
     ],
 )
 
-grpc_cc_library(
-    name = "grpc++_base",
+grpc_cc_libraries(
+    name_list = ["grpc++_base", "grpc++_base_unsecure"],
+    additional_dep_list = [
+        ["grpc", ],
+        ["grpc_unsecure", ],
+    ],
     srcs = [
         "src/cpp/client/channel_cc.cc",
         "src/cpp/client/client_context.cc",
@@ -1267,7 +1265,7 @@
         "src/cpp/util/status.cc",
         "src/cpp/util/string_ref.cc",
         "src/cpp/util/time_cc.cc",
-    ],
+        ],
     hdrs = [
         "src/cpp/client/create_channel_internal.h",
         "src/cpp/common/channel_filter.h",
@@ -1276,7 +1274,7 @@
         "src/cpp/server/health/health.pb.h",
         "src/cpp/server/thread_pool_interface.h",
         "src/cpp/thread_manager/thread_manager.h",
-    ],
+        ],
     language = "c++",
     public_hdrs = [
         "include/grpc++/alarm.h",
@@ -1326,9 +1324,8 @@
         "include/grpc++/support/stub_options.h",
         "include/grpc++/support/sync_stream.h",
         "include/grpc++/support/time.h",
-    ],
+        ],
     deps = [
-        "grpc",
         "grpc++_codegen_base",
     ],
 )
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0283810..a179a0f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -316,10 +316,11 @@
     add_custom_command(
       OUTPUT "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc"
              "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h"
+             "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}_mock.grpc.pb.h"
              "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc"
              "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h"
       COMMAND ${_gRPC_PROTOBUF_PROTOC}
-      ARGS --grpc_out=${_gRPC_PROTO_GENS_DIR}
+      ARGS --grpc_out=generate_mock_code=true:${_gRPC_PROTO_GENS_DIR}
            --cpp_out=${_gRPC_PROTO_GENS_DIR}
            --plugin=protoc-gen-grpc=$<TARGET_FILE:grpc_cpp_plugin>
            ${_protobuf_include_path}
@@ -329,7 +330,7 @@
       COMMENT "Running gRPC C++ protocol buffer compiler on ${FIL}"
       VERBATIM)
 
-      set_source_files_properties("${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h" PROPERTIES GENERATED TRUE)
+      set_source_files_properties("${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h"  "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}_mock.grpc.pb.h" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h" PROPERTIES GENERATED TRUE)
   endforeach()
 endfunction()
 
@@ -495,6 +496,7 @@
 add_dependencies(buildtests_c server_chttp2_test)
 add_dependencies(buildtests_c server_test)
 add_dependencies(buildtests_c slice_buffer_test)
+add_dependencies(buildtests_c slice_hash_table_test)
 add_dependencies(buildtests_c slice_string_helpers_test)
 add_dependencies(buildtests_c slice_test)
 add_dependencies(buildtests_c sockaddr_resolver_test)
@@ -692,6 +694,7 @@
 if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
 add_dependencies(buildtests_cxx json_run_localhost)
 endif()
+add_dependencies(buildtests_cxx memory_test)
 add_dependencies(buildtests_cxx metrics_client)
 add_dependencies(buildtests_cxx mock_test)
 add_dependencies(buildtests_cxx noop-benchmark)
@@ -1016,7 +1019,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -1088,6 +1091,7 @@
   src/core/tsi/fake_transport_security.c
   src/core/tsi/ssl_transport_security.c
   src/core/tsi/transport_security.c
+  src/core/tsi/transport_security_adapter.c
   src/core/ext/transport/chttp2/server/chttp2_server.c
   src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
   src/core/ext/filters/client_channel/channel_connectivity.c
@@ -1341,7 +1345,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -1437,6 +1441,7 @@
   src/core/tsi/fake_transport_security.c
   src/core/tsi/ssl_transport_security.c
   src/core/tsi/transport_security.c
+  src/core/tsi/transport_security_adapter.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
   src/core/ext/filters/load_reporting/load_reporting.c
   src/core/ext/filters/load_reporting/load_reporting_filter.c
@@ -1651,7 +1656,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -1907,7 +1912,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -2326,7 +2331,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -2651,7 +2656,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -3007,6 +3012,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3126,6 +3133,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3151,6 +3160,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo.grpc.pb.cc
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo.pb.h
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo.grpc.pb.h
+  ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo_mock.grpc.pb.h
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/duplicate/echo_duplicate.pb.cc
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.cc
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/duplicate/echo_duplicate.pb.h
@@ -3203,6 +3213,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3415,7 +3427,7 @@
   src/core/lib/surface/completion_queue.c
   src/core/lib/surface/completion_queue_factory.c
   src/core/lib/surface/event_string.c
-  src/core/lib/surface/lame_client.c
+  src/core/lib/surface/lame_client.cc
   src/core/lib/surface/metadata_array.c
   src/core/lib/surface/server.c
   src/core/lib/surface/validate_metadata.c
@@ -3629,6 +3641,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3688,6 +3702,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3827,6 +3843,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3882,6 +3900,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -3952,6 +3972,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -4003,6 +4025,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -4072,6 +4096,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -4123,6 +4149,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -4211,6 +4239,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8005,6 +8035,37 @@
 endif (gRPC_BUILD_TESTS)
 if (gRPC_BUILD_TESTS)
 
+add_executable(slice_hash_table_test
+  test/core/slice/slice_hash_table_test.c
+)
+
+
+target_include_directories(slice_hash_table_test
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
+  PRIVATE ${BORINGSSL_ROOT_DIR}/include
+  PRIVATE ${PROTOBUF_ROOT_DIR}/src
+  PRIVATE ${BENCHMARK_ROOT_DIR}/include
+  PRIVATE ${ZLIB_ROOT_DIR}
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/zlib
+  PRIVATE ${CARES_BUILD_INCLUDE_DIR}
+  PRIVATE ${CARES_INCLUDE_DIR}
+  PRIVATE ${CARES_PLATFORM_INCLUDE_DIR}
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/cares/cares
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
+)
+
+target_link_libraries(slice_hash_table_test
+  ${_gRPC_ALLTARGETS_LIBRARIES}
+  grpc_test_util
+  grpc
+  gpr_test_util
+  gpr
+)
+
+endif (gRPC_BUILD_TESTS)
+if (gRPC_BUILD_TESTS)
+
 add_executable(slice_string_helpers_test
   test/core/slice/slice_string_helpers_test.c
 )
@@ -8735,6 +8796,7 @@
 add_executable(alarm_cpp_test
   test/cpp/common/alarm_cpp_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8753,6 +8815,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8774,6 +8838,7 @@
 add_executable(async_end2end_test
   test/cpp/end2end/async_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8792,6 +8857,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8813,6 +8880,7 @@
 add_executable(auth_property_iterator_test
   test/cpp/common/auth_property_iterator_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8831,6 +8899,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8853,6 +8923,7 @@
 add_executable(bm_arena
   test/cpp/microbenchmarks/bm_arena.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8871,6 +8942,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8896,6 +8969,7 @@
 add_executable(bm_call_create
   test/cpp/microbenchmarks/bm_call_create.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8914,6 +8988,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8939,6 +9015,7 @@
 add_executable(bm_chttp2_hpack
   test/cpp/microbenchmarks/bm_chttp2_hpack.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -8957,6 +9034,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -8982,6 +9061,7 @@
 add_executable(bm_chttp2_transport
   test/cpp/microbenchmarks/bm_chttp2_transport.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9000,6 +9080,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9025,6 +9107,7 @@
 add_executable(bm_closure
   test/cpp/microbenchmarks/bm_closure.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9043,6 +9126,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9068,6 +9153,7 @@
 add_executable(bm_cq
   test/cpp/microbenchmarks/bm_cq.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9086,6 +9172,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9111,6 +9199,7 @@
 add_executable(bm_cq_multiple_threads
   test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9129,6 +9218,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9154,6 +9245,7 @@
 add_executable(bm_error
   test/cpp/microbenchmarks/bm_error.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9172,6 +9264,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9197,6 +9291,7 @@
 add_executable(bm_fullstack_streaming_ping_pong
   test/cpp/microbenchmarks/bm_fullstack_streaming_ping_pong.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9215,6 +9310,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9240,6 +9337,7 @@
 add_executable(bm_fullstack_streaming_pump
   test/cpp/microbenchmarks/bm_fullstack_streaming_pump.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9258,6 +9356,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9283,6 +9383,7 @@
 add_executable(bm_fullstack_trickle
   test/cpp/microbenchmarks/bm_fullstack_trickle.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9301,6 +9402,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9326,6 +9429,7 @@
 add_executable(bm_fullstack_unary_ping_pong
   test/cpp/microbenchmarks/bm_fullstack_unary_ping_pong.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9344,6 +9448,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9369,6 +9475,7 @@
 add_executable(bm_metadata
   test/cpp/microbenchmarks/bm_metadata.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9387,6 +9494,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9412,6 +9521,7 @@
 add_executable(bm_pollset
   test/cpp/microbenchmarks/bm_pollset.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9430,6 +9540,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9454,6 +9566,7 @@
 add_executable(channel_arguments_test
   test/cpp/common/channel_arguments_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9472,6 +9585,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9490,6 +9605,7 @@
 add_executable(channel_filter_test
   test/cpp/common/channel_filter_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9508,6 +9624,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9526,6 +9644,7 @@
 add_executable(cli_call_test
   test/cpp/util/cli_call_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9544,6 +9663,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9567,6 +9688,7 @@
 add_executable(client_crash_test
   test/cpp/end2end/client_crash_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9585,6 +9707,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9607,6 +9731,7 @@
 add_executable(client_crash_test_server
   test/cpp/end2end/client_crash_test_server.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9625,6 +9750,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9666,6 +9793,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/stats.grpc.pb.h
   test/cpp/codegen/codegen_test_full.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -9699,6 +9827,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9738,6 +9868,7 @@
   test/cpp/codegen/codegen_test_minimal.cc
   src/cpp/codegen/codegen_init.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -9771,6 +9902,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9788,6 +9921,7 @@
 add_executable(credentials_test
   test/cpp/client/credentials_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9806,6 +9940,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9824,6 +9960,7 @@
 add_executable(cxx_byte_buffer_test
   test/cpp/util/byte_buffer_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9842,6 +9979,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9862,6 +10001,7 @@
 add_executable(cxx_slice_test
   test/cpp/util/slice_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9880,6 +10020,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9900,6 +10042,7 @@
 add_executable(cxx_string_ref_test
   test/cpp/util/string_ref_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9918,6 +10061,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9934,6 +10079,7 @@
 add_executable(cxx_time_test
   test/cpp/util/time_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9952,6 +10098,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -9972,6 +10120,7 @@
 add_executable(end2end_test
   test/cpp/end2end/end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -9990,6 +10139,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10015,6 +10166,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo_messages.grpc.pb.h
   test/cpp/util/error_details_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10036,6 +10188,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10053,6 +10207,7 @@
 add_executable(filter_end2end_test
   test/cpp/end2end/filter_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10071,6 +10226,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10092,6 +10249,7 @@
 add_executable(generic_end2end_test
   test/cpp/end2end/generic_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10110,6 +10268,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10135,6 +10295,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/compiler_test.grpc.pb.h
   test/cpp/codegen/golden_file_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10156,6 +10317,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10174,6 +10337,7 @@
 add_executable(grpc_cli
   test/cpp/util/grpc_cli.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10192,6 +10356,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10487,6 +10653,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo_messages.grpc.pb.h
   test/cpp/util/grpc_tool_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10511,6 +10678,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10539,6 +10708,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/lb/v1/load_balancer.grpc.pb.h
   test/cpp/grpclb/grpclb_api_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10560,6 +10730,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10583,6 +10755,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/lb/v1/load_balancer.grpc.pb.h
   test/cpp/grpclb/grpclb_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10604,6 +10777,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10625,6 +10800,7 @@
 add_executable(health_service_end2end_test
   test/cpp/end2end/health_service_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10643,6 +10819,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10664,6 +10842,7 @@
 
 add_executable(http2_client
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10682,6 +10861,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10704,6 +10885,7 @@
 add_executable(hybrid_end2end_test
   test/cpp/end2end/hybrid_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10722,6 +10904,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10743,6 +10927,7 @@
 
 add_executable(interop_client
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10761,6 +10946,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10786,6 +10973,7 @@
 
 add_executable(interop_server
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10804,6 +10992,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10831,6 +11021,7 @@
 add_executable(interop_test
   test/cpp/interop/interop_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10849,6 +11040,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10871,6 +11064,7 @@
 add_executable(json_run_localhost
   test/cpp/qps/json_run_localhost.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10889,6 +11083,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10909,6 +11105,44 @@
 endif (gRPC_BUILD_TESTS)
 if (gRPC_BUILD_TESTS)
 
+add_executable(memory_test
+  test/core/support/memory_test.cc
+  third_party/googletest/googletest/src/gtest-all.cc
+)
+
+
+target_include_directories(memory_test
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
+  PRIVATE ${BORINGSSL_ROOT_DIR}/include
+  PRIVATE ${PROTOBUF_ROOT_DIR}/src
+  PRIVATE ${BENCHMARK_ROOT_DIR}/include
+  PRIVATE ${ZLIB_ROOT_DIR}
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/zlib
+  PRIVATE ${CARES_BUILD_INCLUDE_DIR}
+  PRIVATE ${CARES_INCLUDE_DIR}
+  PRIVATE ${CARES_PLATFORM_INCLUDE_DIR}
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/cares/cares
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
+  PRIVATE third_party/googletest/googletest/include
+  PRIVATE third_party/googletest/googletest
+  PRIVATE ${_gRPC_PROTO_GENS_DIR}
+)
+
+target_link_libraries(memory_test
+  ${_gRPC_PROTOBUF_LIBRARIES}
+  ${_gRPC_ALLTARGETS_LIBRARIES}
+  grpc_test_util
+  grpc++
+  grpc
+  gpr_test_util
+  gpr
+  ${_gRPC_GFLAGS_LIBRARIES}
+)
+
+endif (gRPC_BUILD_TESTS)
+if (gRPC_BUILD_TESTS)
+
 add_executable(metrics_client
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/metrics.pb.cc
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/metrics.grpc.pb.cc
@@ -10916,6 +11150,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/metrics.grpc.pb.h
   test/cpp/interop/metrics_client.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -10937,6 +11172,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10956,6 +11193,7 @@
 add_executable(mock_test
   test/cpp/end2end/mock_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -10974,6 +11212,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -10995,6 +11235,7 @@
 add_executable(noop-benchmark
   test/cpp/microbenchmarks/noop-benchmark.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11013,6 +11254,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11029,6 +11272,7 @@
 add_executable(proto_server_reflection_test
   test/cpp/end2end/proto_server_reflection_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11047,6 +11291,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11070,6 +11316,7 @@
 add_executable(proto_utils_test
   test/cpp/codegen/proto_utils_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11088,6 +11335,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11106,6 +11355,7 @@
 add_executable(qps_interarrival_test
   test/cpp/qps/qps_interarrival_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11124,6 +11374,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11147,6 +11399,7 @@
 add_executable(qps_json_driver
   test/cpp/qps/qps_json_driver.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11165,6 +11418,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11189,6 +11444,7 @@
 add_executable(qps_openloop_test
   test/cpp/qps/qps_openloop_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11207,6 +11463,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11231,6 +11489,7 @@
 add_executable(qps_worker
   test/cpp/qps/worker.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11249,6 +11508,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11284,6 +11545,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/test.grpc.pb.h
   test/cpp/interop/reconnect_interop_client.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -11311,6 +11573,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11345,6 +11609,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/test.grpc.pb.h
   test/cpp/interop/reconnect_interop_server.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -11372,6 +11637,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11396,6 +11663,7 @@
 add_executable(round_robin_end2end_test
   test/cpp/end2end/round_robin_end2end_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11414,6 +11682,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11435,6 +11705,7 @@
 add_executable(secure_auth_context_test
   test/cpp/common/secure_auth_context_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11453,6 +11724,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11475,6 +11748,7 @@
 add_executable(secure_sync_unary_ping_pong_test
   test/cpp/qps/secure_sync_unary_ping_pong_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11493,6 +11767,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11516,6 +11792,7 @@
 add_executable(server_builder_plugin_test
   test/cpp/end2end/server_builder_plugin_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11534,6 +11811,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11563,6 +11842,7 @@
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/testing/echo.grpc.pb.h
   test/cpp/server/server_builder_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -11587,6 +11867,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11608,6 +11890,7 @@
 add_executable(server_context_test_spouse_test
   test/cpp/test/server_context_test_spouse_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11626,6 +11909,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11647,6 +11932,7 @@
 add_executable(server_crash_test
   test/cpp/end2end/server_crash_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11665,6 +11951,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11687,6 +11975,7 @@
 add_executable(server_crash_test_client
   test/cpp/end2end/server_crash_test_client.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11705,6 +11994,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11726,6 +12017,7 @@
 add_executable(shutdown_test
   test/cpp/end2end/shutdown_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11744,6 +12036,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11765,6 +12059,7 @@
 add_executable(status_test
   test/cpp/util/status_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11783,6 +12078,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11804,6 +12101,7 @@
 add_executable(streaming_throughput_test
   test/cpp/end2end/streaming_throughput_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11822,6 +12120,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11863,6 +12163,7 @@
   test/cpp/interop/stress_test.cc
   test/cpp/util/metrics_server.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 protobuf_generate_grpc_cpp(
@@ -11893,6 +12194,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11915,6 +12218,7 @@
 add_executable(thread_manager_test
   test/cpp/thread_manager/thread_manager_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11933,6 +12237,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11952,6 +12258,7 @@
 add_executable(thread_stress_test
   test/cpp/end2end/thread_stress_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -11970,6 +12277,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
@@ -11992,6 +12301,7 @@
 add_executable(writes_per_rpc_test
   test/cpp/performance/writes_per_rpc_test.cc
   third_party/googletest/googletest/src/gtest-all.cc
+  third_party/googletest/googlemock/src/gmock-all.cc
 )
 
 
@@ -12010,6 +12320,8 @@
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
+  PRIVATE third_party/googletest/googlemock/include
+  PRIVATE third_party/googletest/googlemock
   PRIVATE ${_gRPC_PROTO_GENS_DIR}
 )
 
diff --git a/INSTALL.md b/INSTALL.md
index ac03a5e..29f0060 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -28,16 +28,24 @@
  $ [sudo] apt-get install clang libc++-dev
 ```
 
-## Mac OSX
+## macOS 
 
-For a Mac system, git is not available by default. You will first need to
-install Xcode from the Mac AppStore and then run the following command from a
-terminal:
+On a Mac, you will first need to
+install Xcode or
+[Command Line Tools for Xcode](https://developer.apple.com/download/more/)
+and then run the following command from a terminal:
 
 ```sh
  $ [sudo] xcode-select --install
 ```
 
+To build gRPC from source, you may also need to install the following
+packages, which you can get from [Homebrew](https://brew.sh):
+
+```sh
+ $ brew install autoconf automake libtool shtool
+```
+
 ## Protoc
 
 By default gRPC uses [protocol buffers](https://github.com/google/protobuf),
diff --git a/Makefile b/Makefile
index 36f2f8e..dd35d8c 100644
--- a/Makefile
+++ b/Makefile
@@ -92,6 +92,7 @@
 CXX_opt = $(DEFAULT_CXX)
 LD_opt = $(DEFAULT_CC)
 LDXX_opt = $(DEFAULT_CXX)
+CXXFLAGS_opt = -fno-exceptions
 CPPFLAGS_opt = -O2
 DEFINES_opt = NDEBUG
 
@@ -99,7 +100,7 @@
 REQUIRE_CUSTOM_LIBRARIES_asan-trace-cmp = 1
 CC_asan-trace-cmp = clang
 CXX_asan-trace-cmp = clang++
-LD_asan-trace-cmp = clang
+LD_asan-trace-cmp = clang++
 LDXX_asan-trace-cmp = clang++
 CPPFLAGS_asan-trace-cmp = -O0 -fsanitize-coverage=edge -fsanitize-coverage=trace-cmp -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
 LDFLAGS_asan-trace-cmp = -fsanitize=address
@@ -109,6 +110,7 @@
 CXX_dbg = $(DEFAULT_CXX)
 LD_dbg = $(DEFAULT_CC)
 LDXX_dbg = $(DEFAULT_CXX)
+CXXFLAGS_dbg = -fno-exceptions
 CPPFLAGS_dbg = -O0
 DEFINES_dbg = _DEBUG DEBUG
 
@@ -116,7 +118,7 @@
 REQUIRE_CUSTOM_LIBRARIES_asan = 1
 CC_asan = clang
 CXX_asan = clang++
-LD_asan = clang
+LD_asan = clang++
 LDXX_asan = clang++
 CPPFLAGS_asan = -O0 -fsanitize-coverage=edge -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
 LDFLAGS_asan = -fsanitize=address
@@ -125,7 +127,7 @@
 REQUIRE_CUSTOM_LIBRARIES_msan = 1
 CC_msan = clang
 CXX_msan = clang++
-LD_msan = clang
+LD_msan = clang++
 LDXX_msan = clang++
 CPPFLAGS_msan = -O0 -fsanitize-coverage=edge -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
 LDFLAGS_msan = -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
@@ -152,7 +154,7 @@
 REQUIRE_CUSTOM_LIBRARIES_asan-noleaks = 1
 CC_asan-noleaks = clang
 CXX_asan-noleaks = clang++
-LD_asan-noleaks = clang
+LD_asan-noleaks = clang++
 LDXX_asan-noleaks = clang++
 CPPFLAGS_asan-noleaks = -O0 -fsanitize-coverage=edge -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
 LDFLAGS_asan-noleaks = -fsanitize=address
@@ -170,17 +172,17 @@
 REQUIRE_CUSTOM_LIBRARIES_ubsan = 1
 CC_ubsan = clang
 CXX_ubsan = clang++
-LD_ubsan = clang
+LD_ubsan = clang++
 LDXX_ubsan = clang++
 CPPFLAGS_ubsan = -O0 -fsanitize-coverage=edge -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument -Wvarargs
 LDFLAGS_ubsan = -fsanitize=undefined,unsigned-integer-overflow
-DEFINES_ubsan = NDEBUG
+DEFINES_ubsan = NDEBUG GRPC_UBSAN
 
 VALID_CONFIG_tsan = 1
 REQUIRE_CUSTOM_LIBRARIES_tsan = 1
 CC_tsan = clang
 CXX_tsan = clang++
-LD_tsan = clang
+LD_tsan = clang++
 LDXX_tsan = clang++
 CPPFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
 LDFLAGS_tsan = -fsanitize=thread
@@ -418,7 +420,7 @@
 USE_BUILT_PROTOC = false
 endif
 
-GTEST_LIB = -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googletest third_party/googletest/googletest/src/gtest-all.cc
+GTEST_LIB = -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googletest third_party/googletest/googletest/src/gtest-all.cc -Ithird_party/googletest/googlemock/include -Ithird_party/googletest/googlemock third_party/googletest/googlemock/src/gmock-all.cc
 GTEST_LIB += -lgflags
 ifeq ($(V),1)
 E = @:
@@ -793,7 +795,7 @@
 PC_REQUIRES_GRPCXX =
 PC_LIBS_GRPCXX =
 
-CPPFLAGS := -Ithird_party/googletest/googletest/include $(CPPFLAGS)
+CPPFLAGS := -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googlemock/include $(CPPFLAGS)
 
 PROTOC_PLUGINS_ALL = $(BINDIR)/$(CONFIG)/grpc_cpp_plugin $(BINDIR)/$(CONFIG)/grpc_csharp_plugin $(BINDIR)/$(CONFIG)/grpc_node_plugin $(BINDIR)/$(CONFIG)/grpc_objective_c_plugin $(BINDIR)/$(CONFIG)/grpc_php_plugin $(BINDIR)/$(CONFIG)/grpc_python_plugin $(BINDIR)/$(CONFIG)/grpc_ruby_plugin
 PROTOC_PLUGINS_DIR = $(BINDIR)/$(CONFIG)
@@ -1082,6 +1084,7 @@
 server_fuzzer: $(BINDIR)/$(CONFIG)/server_fuzzer
 server_test: $(BINDIR)/$(CONFIG)/server_test
 slice_buffer_test: $(BINDIR)/$(CONFIG)/slice_buffer_test
+slice_hash_table_test: $(BINDIR)/$(CONFIG)/slice_hash_table_test
 slice_string_helpers_test: $(BINDIR)/$(CONFIG)/slice_string_helpers_test
 slice_test: $(BINDIR)/$(CONFIG)/slice_test
 sockaddr_resolver_test: $(BINDIR)/$(CONFIG)/sockaddr_resolver_test
@@ -1159,6 +1162,7 @@
 interop_server: $(BINDIR)/$(CONFIG)/interop_server
 interop_test: $(BINDIR)/$(CONFIG)/interop_test
 json_run_localhost: $(BINDIR)/$(CONFIG)/json_run_localhost
+memory_test: $(BINDIR)/$(CONFIG)/memory_test
 metrics_client: $(BINDIR)/$(CONFIG)/metrics_client
 mock_test: $(BINDIR)/$(CONFIG)/mock_test
 noop-benchmark: $(BINDIR)/$(CONFIG)/noop-benchmark
@@ -1452,6 +1456,7 @@
   $(BINDIR)/$(CONFIG)/server_chttp2_test \
   $(BINDIR)/$(CONFIG)/server_test \
   $(BINDIR)/$(CONFIG)/slice_buffer_test \
+  $(BINDIR)/$(CONFIG)/slice_hash_table_test \
   $(BINDIR)/$(CONFIG)/slice_string_helpers_test \
   $(BINDIR)/$(CONFIG)/slice_test \
   $(BINDIR)/$(CONFIG)/sockaddr_resolver_test \
@@ -1581,6 +1586,7 @@
   $(BINDIR)/$(CONFIG)/interop_server \
   $(BINDIR)/$(CONFIG)/interop_test \
   $(BINDIR)/$(CONFIG)/json_run_localhost \
+  $(BINDIR)/$(CONFIG)/memory_test \
   $(BINDIR)/$(CONFIG)/metrics_client \
   $(BINDIR)/$(CONFIG)/mock_test \
   $(BINDIR)/$(CONFIG)/noop-benchmark \
@@ -1701,6 +1707,7 @@
   $(BINDIR)/$(CONFIG)/interop_server \
   $(BINDIR)/$(CONFIG)/interop_test \
   $(BINDIR)/$(CONFIG)/json_run_localhost \
+  $(BINDIR)/$(CONFIG)/memory_test \
   $(BINDIR)/$(CONFIG)/metrics_client \
   $(BINDIR)/$(CONFIG)/mock_test \
   $(BINDIR)/$(CONFIG)/noop-benchmark \
@@ -1924,6 +1931,8 @@
 	$(Q) $(BINDIR)/$(CONFIG)/server_test || ( echo test server_test failed ; exit 1 )
 	$(E) "[RUN]     Testing slice_buffer_test"
 	$(Q) $(BINDIR)/$(CONFIG)/slice_buffer_test || ( echo test slice_buffer_test failed ; exit 1 )
+	$(E) "[RUN]     Testing slice_hash_table_test"
+	$(Q) $(BINDIR)/$(CONFIG)/slice_hash_table_test || ( echo test slice_hash_table_test failed ; exit 1 )
 	$(E) "[RUN]     Testing slice_string_helpers_test"
 	$(Q) $(BINDIR)/$(CONFIG)/slice_string_helpers_test || ( echo test slice_string_helpers_test failed ; exit 1 )
 	$(E) "[RUN]     Testing slice_test"
@@ -2078,6 +2087,8 @@
 	$(Q) $(BINDIR)/$(CONFIG)/health_service_end2end_test || ( echo test health_service_end2end_test failed ; exit 1 )
 	$(E) "[RUN]     Testing interop_test"
 	$(Q) $(BINDIR)/$(CONFIG)/interop_test || ( echo test interop_test failed ; exit 1 )
+	$(E) "[RUN]     Testing memory_test"
+	$(Q) $(BINDIR)/$(CONFIG)/memory_test || ( echo test memory_test failed ; exit 1 )
 	$(E) "[RUN]     Testing mock_test"
 	$(Q) $(BINDIR)/$(CONFIG)/mock_test || ( echo test mock_test failed ; exit 1 )
 	$(E) "[RUN]     Testing noop-benchmark"
@@ -2234,6 +2245,7 @@
 $(GENDIR)/src/proto/grpc/health/v1/health.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/health/v1/health.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/health/v1/health.pb.cc: src/proto/grpc/health/v1/health.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2249,6 +2261,7 @@
 $(GENDIR)/src/proto/grpc/lb/v1/load_balancer.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/lb/v1/load_balancer.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/lb/v1/load_balancer.pb.cc: src/proto/grpc/lb/v1/load_balancer.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2264,6 +2277,7 @@
 $(GENDIR)/src/proto/grpc/reflection/v1alpha/reflection.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/reflection/v1alpha/reflection.pb.cc: src/proto/grpc/reflection/v1alpha/reflection.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2279,6 +2293,7 @@
 $(GENDIR)/src/proto/grpc/status/status.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/status/status.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/status/status.pb.cc: src/proto/grpc/status/status.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2294,6 +2309,8 @@
 $(GENDIR)/src/proto/grpc/testing/compiler_test.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/compiler_test.grpc.pb.cc: protoc_dep_error
 else
+
+
 $(GENDIR)/src/proto/grpc/testing/compiler_test.pb.cc: src/proto/grpc/testing/compiler_test.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2302,13 +2319,14 @@
 $(GENDIR)/src/proto/grpc/testing/compiler_test.grpc.pb.cc: src/proto/grpc/testing/compiler_test.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
+	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=generate_mock_code=true:$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/src/proto/grpc/testing/control.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/control.pb.cc: src/proto/grpc/testing/control.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2324,6 +2342,7 @@
 $(GENDIR)/src/proto/grpc/testing/duplicate/echo_duplicate.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/duplicate/echo_duplicate.pb.cc: src/proto/grpc/testing/duplicate/echo_duplicate.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/echo_messages.pb.cc
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2339,6 +2358,8 @@
 $(GENDIR)/src/proto/grpc/testing/echo.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/echo.grpc.pb.cc: protoc_dep_error
 else
+
+
 $(GENDIR)/src/proto/grpc/testing/echo.pb.cc: src/proto/grpc/testing/echo.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/echo_messages.pb.cc
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2347,13 +2368,14 @@
 $(GENDIR)/src/proto/grpc/testing/echo.grpc.pb.cc: src/proto/grpc/testing/echo.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/echo_messages.pb.cc $(GENDIR)/src/proto/grpc/testing/echo_messages.grpc.pb.cc
 	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
+	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=generate_mock_code=true:$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/src/proto/grpc/testing/echo_messages.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/echo_messages.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/echo_messages.pb.cc: src/proto/grpc/testing/echo_messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2369,6 +2391,7 @@
 $(GENDIR)/src/proto/grpc/testing/empty.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/empty.pb.cc: src/proto/grpc/testing/empty.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2384,6 +2407,7 @@
 $(GENDIR)/src/proto/grpc/testing/messages.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/messages.pb.cc: src/proto/grpc/testing/messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2399,6 +2423,7 @@
 $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc: src/proto/grpc/testing/metrics.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2414,6 +2439,7 @@
 $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc: src/proto/grpc/testing/payloads.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2429,6 +2455,7 @@
 $(GENDIR)/src/proto/grpc/testing/services.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/services.pb.cc: src/proto/grpc/testing/services.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2444,6 +2471,7 @@
 $(GENDIR)/src/proto/grpc/testing/stats.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/stats.pb.cc: src/proto/grpc/testing/stats.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) 
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2459,6 +2487,7 @@
 $(GENDIR)/src/proto/grpc/testing/test.pb.cc: protoc_dep_error
 $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc: protoc_dep_error
 else
+
 $(GENDIR)/src/proto/grpc/testing/test.pb.cc: src/proto/grpc/testing/test.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
@@ -2969,7 +2998,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -3041,6 +3070,7 @@
     src/core/tsi/fake_transport_security.c \
     src/core/tsi/ssl_transport_security.c \
     src/core/tsi/transport_security.c \
+    src/core/tsi/transport_security_adapter.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
     src/core/ext/filters/client_channel/channel_connectivity.c \
@@ -3292,7 +3322,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -3388,6 +3418,7 @@
     src/core/tsi/fake_transport_security.c \
     src/core/tsi/ssl_transport_security.c \
     src/core/tsi/transport_security.c \
+    src/core/tsi/transport_security_adapter.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
     src/core/ext/filters/load_reporting/load_reporting.c \
     src/core/ext/filters/load_reporting/load_reporting_filter.c \
@@ -3601,7 +3632,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -3829,7 +3860,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -4225,7 +4256,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -4558,7 +4589,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -5319,7 +5350,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -12354,6 +12385,38 @@
 endif
 
 
+SLICE_HASH_TABLE_TEST_SRC = \
+    test/core/slice/slice_hash_table_test.c \
+
+SLICE_HASH_TABLE_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SLICE_HASH_TABLE_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/slice_hash_table_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/slice_hash_table_test: $(SLICE_HASH_TABLE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SLICE_HASH_TABLE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/slice_hash_table_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/slice/slice_hash_table_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_slice_hash_table_test: $(SLICE_HASH_TABLE_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(SLICE_HASH_TABLE_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 SLICE_STRING_HELPERS_TEST_SRC = \
     test/core/slice/slice_string_helpers_test.c \
 
@@ -15343,6 +15406,49 @@
 endif
 
 
+MEMORY_TEST_SRC = \
+    test/core/support/memory_test.cc \
+
+MEMORY_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(MEMORY_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/memory_test: openssl_dep_error
+
+else
+
+
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/memory_test: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/memory_test: $(PROTOBUF_DEP) $(MEMORY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) $(MEMORY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/memory_test
+
+endif
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/support/memory_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_memory_test: $(MEMORY_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(MEMORY_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 METRICS_CLIENT_SRC = \
     $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc \
     test/cpp/interop/metrics_client.cc \
@@ -19486,6 +19592,7 @@
 src/core/tsi/fake_transport_security.c: $(OPENSSL_DEP)
 src/core/tsi/ssl_transport_security.c: $(OPENSSL_DEP)
 src/core/tsi/transport_security.c: $(OPENSSL_DEP)
+src/core/tsi/transport_security_adapter.c: $(OPENSSL_DEP)
 src/cpp/client/cronet_credentials.cc: $(OPENSSL_DEP)
 src/cpp/client/secure_credentials.cc: $(OPENSSL_DEP)
 src/cpp/common/auth_property_iterator.cc: $(OPENSSL_DEP)
diff --git a/PYTHON-MANIFEST.in b/PYTHON-MANIFEST.in
index bb76b38..8be0af9 100644
--- a/PYTHON-MANIFEST.in
+++ b/PYTHON-MANIFEST.in
@@ -17,3 +17,4 @@
 include src/python/grpcio/README.rst
 include requirements.txt
 include etc/roots.pem
+include Makefile
diff --git a/README.md b/README.md
index e6d8792..0edea88 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
 
 # Repository Structure & Status
 
-This repository contains source code for gRPC libraries for multiple languages written on top of shared C core library [src/core] (src/core).
+This repository contains source code for gRPC libraries for multiple languages written on top of shared C core library [src/core](src/core).
 
 Libraries in different languages may be in different states of development. We are seeking contributions for all of these libraries.
 
@@ -36,10 +36,9 @@
 | C#                      | [src/csharp](src/csharp)            | 1.0     |
 | Objective-C             | [src/objective-c](src/objective-c)  | 1.0     |
 
-<small>
-Java source code is in the [grpc-java](http://github.com/grpc/grpc-java) repository.
-Go source code is in the [grpc-go](http://github.com/grpc/grpc-go) repository.
-</small>
+Java source code is in the [grpc-java](http://github.com/grpc/grpc-java)
+repository. Go source code is in the
+[grpc-go](http://github.com/grpc/grpc-go) repository.
 
 See [MANIFEST.md](MANIFEST.md) for a listing of top-level items in the
 repository.
diff --git a/WORKSPACE b/WORKSPACE
index 5ba82f3..a78a889 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -15,17 +15,17 @@
 
 bind(
     name = "protobuf",
-    actual = "@submodule_protobuf//:protobuf",
+    actual = "@com_google_protobuf//:protobuf",
 )
 
 bind(
     name = "protobuf_clib",
-    actual = "@submodule_protobuf//:protoc_lib",
+    actual = "@com_google_protobuf//:protoc_lib",
 )
 
 bind(
     name = "protocol_compiler",
-    actual = "@submodule_protobuf//:protoc",
+    actual = "@com_google_protobuf//:protoc",
 )
 
 bind(
@@ -48,9 +48,8 @@
     actual = "@com_github_gflags_gflags//:gflags",
 )
 
-new_local_repository(
+local_repository(
     name = "submodule_boringssl",
-    build_file = "third_party/boringssl-with-bazel/BUILD",
     path = "third_party/boringssl-with-bazel",
 )
 
@@ -61,7 +60,7 @@
 )
 
 new_local_repository(
-    name = "submodule_protobuf",
+    name = "com_google_protobuf",
     build_file = "third_party/protobuf/BUILD",
     path = "third_party/protobuf",
 )
diff --git a/bazel/BUILD b/bazel/BUILD
index b86dcc2..cb2d9d6 100644
--- a/bazel/BUILD
+++ b/bazel/BUILD
@@ -35,12 +35,12 @@
 
 proto_library(
     name = "well_known_protos_list",
-    srcs = ["@submodule_protobuf//:well_known_protos"],
+    srcs = ["@com_google_protobuf//:well_known_protos"],
 )
 
 cc_grpc_library(
     name = "well_known_protos",
     srcs = "well_known_protos_list",
-    deps = [],
     proto_only = True,
+    deps = [],
 )
diff --git a/bazel/cc_grpc_library.bzl b/bazel/cc_grpc_library.bzl
index ab1add4..0600bb9 100644
--- a/bazel/cc_grpc_library.bzl
+++ b/bazel/cc_grpc_library.bzl
@@ -2,7 +2,7 @@
 
 load("//:bazel/generate_cc.bzl", "generate_cc")
 
-def cc_grpc_library(name, srcs, deps, proto_only, well_known_protos, use_external = False, **kwargs):
+def cc_grpc_library(name, srcs, deps, proto_only, well_known_protos, generate_mock, use_external = False, **kwargs):
   """Generates C++ grpc classes from a .proto file.
 
   Assumes the generated classes will be used in cc_api_version = 2.
@@ -14,9 +14,10 @@
         the compiled code of any message that the services depend on.
       well_known_protos: The target from protobuf library that exports well
         known protos. Currently it will only work if the value is
-        "@submodule_protobuf//:well_known_protos"
+        "@com_google_protobuf//:well_known_protos"
       use_external: When True the grpc deps are prefixed with //external. This
         allows grpc to be used as a dependency in other bazel projects.
+      generate_mock: When true GMOCk code for client stub is generated.
       **kwargs: rest of arguments, e.g., compatible_with and visibility.
   """
   if len(srcs) > 1:
@@ -54,6 +55,7 @@
         srcs = [proto_target],
         plugin = plugin,
         well_known_protos = well_known_protos,
+        generate_mock = generate_mock,
         **kwargs
     )
 
diff --git a/bazel/generate_cc.bzl b/bazel/generate_cc.bzl
index f3961f0..8f0f94f 100644
--- a/bazel/generate_cc.bzl
+++ b/bazel/generate_cc.bzl
@@ -12,6 +12,8 @@
   if ctx.executable.plugin:
     outs += [proto.basename[:-len(".proto")] + ".grpc.pb.h" for proto in protos]
     outs += [proto.basename[:-len(".proto")] + ".grpc.pb.cc" for proto in protos]
+    if ctx.attr.generate_mock:
+      outs += [proto.basename[:-len(".proto")] + "_mock.grpc.pb.h" for proto in protos]
   else:
     outs += [proto.basename[:-len(".proto")] + ".pb.h" for proto in protos]
     outs += [proto.basename[:-len(".proto")] + ".pb.cc" for proto in protos]
@@ -23,7 +25,10 @@
   arguments = []
   if ctx.executable.plugin:
     arguments += ["--plugin=protoc-gen-PLUGIN=" + ctx.executable.plugin.path]
-    arguments += ["--PLUGIN_out=" + ",".join(ctx.attr.flags) + ":" + dir_out]
+    flags = list(ctx.attr.flags)
+    if ctx.attr.generate_mock:
+      flags.append("generate_mock_code=true")
+    arguments += ["--PLUGIN_out=" + ",".join(flags) + ":" + dir_out]
     additional_input = [ctx.executable.plugin]
   else:
     arguments += ["--cpp_out=" + ",".join(ctx.attr.flags) + ":" + dir_out]
@@ -35,10 +40,10 @@
   well_known_proto_files = []
   if ctx.attr.well_known_protos:
     f = ctx.attr.well_known_protos.files.to_list()[0].dirname
-    if f != "external/submodule_protobuf/src/google/protobuf":
-      print("Error: Only @submodule_protobuf//:well_known_protos is supported")
+    if f != "external/com_google_protobuf/src/google/protobuf":
+      print("Error: Only @com_google_protobuf//:well_known_protos is supported")
     else:
-      # f points to "external/submodule_protobuf/src/google/protobuf"
+      # f points to "external/com_google_protobuf/src/google/protobuf"
       # add -I argument to protoc so it knows where to look for the proto files.
       arguments += ["-I{0}".format(f + "/../..")]
       well_known_proto_files = [f for f in ctx.attr.well_known_protos.files]
@@ -71,6 +76,10 @@
         "well_known_protos" : attr.label(
             mandatory = False,
         ),
+        "generate_mock" : attr.bool(
+            default = False,
+            mandatory = False,
+        ),
         "_protoc": attr.label(
             default = Label("//external:protocol_compiler"),
             executable = True,
diff --git a/bazel/grpc_build_system.bzl b/bazel/grpc_build_system.bzl
index 8b524bd..a104fa0 100644
--- a/bazel/grpc_build_system.bzl
+++ b/bazel/grpc_build_system.bzl
@@ -49,6 +49,22 @@
     ]
   )
 
+def grpc_cc_libraries(name_list, additional_src_list = [], additional_dep_list = [], srcs = [], public_hdrs = [], hdrs = [], external_deps = [], deps = [], standalone = False, language="C++"):
+  names = len(name_list)
+  asl = additional_src_list + [[]]*(names - len(additional_src_list))
+  adl = additional_dep_list + [[]]*(names - len(additional_dep_list))
+  for i in range(names):
+    grpc_cc_library(
+      name = name_list[i],
+      srcs = srcs + asl[i],
+      hdrs = hdrs,
+      public_hdrs = public_hdrs,
+      deps = deps + adl[i],
+      external_deps = external_deps,
+      standalone = standalone,
+      language = language
+    )
+
 def grpc_proto_plugin(name, srcs = [], deps = []):
   native.cc_binary(
     name = name,
@@ -59,7 +75,7 @@
 load("//:bazel/cc_grpc_library.bzl", "cc_grpc_library")
 
 def grpc_proto_library(name, srcs = [], deps = [], well_known_protos = None,
-                       has_services = True, use_external = False):
+                       has_services = True, use_external = False, generate_mock = False):
   cc_grpc_library(
     name = name,
     srcs = srcs,
@@ -67,5 +83,6 @@
     well_known_protos = well_known_protos,
     proto_only = not has_services,
     use_external = use_external,
+    generate_mock = generate_mock,
   )
 
diff --git a/binding.gyp b/binding.gyp
index a08bf78..582c612 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -754,7 +754,7 @@
         'src/core/lib/surface/completion_queue.c',
         'src/core/lib/surface/completion_queue_factory.c',
         'src/core/lib/surface/event_string.c',
-        'src/core/lib/surface/lame_client.c',
+        'src/core/lib/surface/lame_client.cc',
         'src/core/lib/surface/metadata_array.c',
         'src/core/lib/surface/server.c',
         'src/core/lib/surface/validate_metadata.c',
@@ -826,6 +826,7 @@
         'src/core/tsi/fake_transport_security.c',
         'src/core/tsi/ssl_transport_security.c',
         'src/core/tsi/transport_security.c',
+        'src/core/tsi/transport_security_adapter.c',
         'src/core/ext/transport/chttp2/server/chttp2_server.c',
         'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
         'src/core/ext/filters/client_channel/channel_connectivity.c',
diff --git a/build.yaml b/build.yaml
index ed7f4cc..7b60612 100644
--- a/build.yaml
+++ b/build.yaml
@@ -13,7 +13,7 @@
   '#09': Per-language overrides are possible with (eg) ruby_version tag here
   '#10': See the expand_version.py for all the quirks here
   core_version: 4.0.0-dev
-  g_stands_for: gentle
+  g_stands_for: gregarious
   version: 1.4.0-dev
 filegroups:
 - name: census
@@ -86,9 +86,13 @@
   headers:
   - src/core/lib/profiling/timers.h
   - src/core/lib/support/arena.h
+  - src/core/lib/support/atomic.h
+  - src/core/lib/support/atomic_with_atm.h
+  - src/core/lib/support/atomic_with_std.h
   - src/core/lib/support/backoff.h
   - src/core/lib/support/block_annotate.h
   - src/core/lib/support/env.h
+  - src/core/lib/support/memory.h
   - src/core/lib/support/mpscq.h
   - src/core/lib/support/murmur_hash.h
   - src/core/lib/support/spinlock.h
@@ -382,7 +386,7 @@
   - src/core/lib/surface/completion_queue.c
   - src/core/lib/surface/completion_queue_factory.c
   - src/core/lib/surface/event_string.c
-  - src/core/lib/surface/lame_client.c
+  - src/core/lib/surface/lame_client.cc
   - src/core/lib/surface/metadata_array.c
   - src/core/lib/surface/server.c
   - src/core/lib/surface/validate_metadata.c
@@ -809,11 +813,13 @@
   - src/core/tsi/ssl_transport_security.h
   - src/core/tsi/ssl_types.h
   - src/core/tsi/transport_security.h
+  - src/core/tsi/transport_security_adapter.h
   - src/core/tsi/transport_security_interface.h
   src:
   - src/core/tsi/fake_transport_security.c
   - src/core/tsi/ssl_transport_security.c
   - src/core/tsi/transport_security.c
+  - src/core/tsi/transport_security_adapter.c
   deps:
   - gpr
   secure: true
@@ -969,6 +975,7 @@
 - name: grpc++_test
   language: c++
   public_headers:
+  - include/grpc++/test/mock_stream.h
   - include/grpc++/test/server_context_test_spouse.h
   deps:
   - grpc++
@@ -2810,6 +2817,16 @@
   - grpc
   - gpr_test_util
   - gpr
+- name: slice_hash_table_test
+  build: test
+  language: c
+  src:
+  - test/core/slice/slice_hash_table_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: slice_string_helpers_test
   build: test
   language: c
@@ -3681,7 +3698,7 @@
   - grpc
   - gpr
   args:
-  - --generated_file_path=gens/src/proto/grpc/testing/compiler_test.grpc.pb.h
+  - --generated_file_path=gens/src/proto/grpc/testing/
 - name: grpc_cli
   build: test
   run: false
@@ -3924,6 +3941,20 @@
   - mac
   - linux
   - posix
+- name: memory_test
+  gtest: true
+  build: test
+  language: c++
+  src:
+  - test/core/support/memory_test.cc
+  deps:
+  - grpc_test_util
+  - grpc++
+  - grpc
+  - gpr_test_util
+  - gpr
+  uses:
+  - grpc++_test
 - name: metrics_client
   build: test
   run: false
@@ -3942,6 +3973,8 @@
   gtest: true
   build: test
   language: c++
+  headers:
+  - include/grpc++/test/mock_stream.h
   src:
   - test/cpp/end2end/mock_test.cc
   deps:
@@ -4351,7 +4384,7 @@
     CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize=address -fno-omit-frame-pointer
       -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
-    LD: clang
+    LD: clang++
     LDFLAGS: -fsanitize=address
     LDXX: clang++
     compile_the_world: true
@@ -4363,7 +4396,7 @@
     CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize=address -fno-omit-frame-pointer
       -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
-    LD: clang
+    LD: clang++
     LDFLAGS: -fsanitize=address
     LDXX: clang++
     compile_the_world: true
@@ -4374,7 +4407,7 @@
     CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize-coverage=trace-cmp -fsanitize=address
       -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
-    LD: clang
+    LD: clang++
     LDFLAGS: -fsanitize=address
     LDXX: clang++
     compile_the_world: true
@@ -4393,6 +4426,7 @@
     DEFINES: NDEBUG
   dbg:
     CPPFLAGS: -O0
+    CXXFLAGS: -fno-exceptions
     DEFINES: _DEBUG DEBUG
   gcov:
     CC: gcc
@@ -4422,7 +4456,7 @@
       -Wno-unused-command-line-argument -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
     DEFINES: NDEBUG
-    LD: clang
+    LD: clang++
     LDFLAGS: -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1
       -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
     LDXX: clang++
@@ -4433,6 +4467,7 @@
     LDFLAGS: -rdynamic
   opt:
     CPPFLAGS: -O2
+    CXXFLAGS: -fno-exceptions
     DEFINES: NDEBUG
   stapprof:
     CPPFLAGS: -O2 -DGRPC_STAP_PROFILER
@@ -4443,7 +4478,7 @@
       -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
     DEFINES: GRPC_TSAN
-    LD: clang
+    LD: clang++
     LDFLAGS: -fsanitize=thread
     LDXX: clang++
     compile_the_world: true
@@ -4454,8 +4489,8 @@
     CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize=undefined -fno-omit-frame-pointer
       -Wno-unused-command-line-argument -Wvarargs
     CXX: clang++
-    DEFINES: NDEBUG
-    LD: clang
+    DEFINES: NDEBUG GRPC_UBSAN
+    LD: clang++
     LDFLAGS: -fsanitize=undefined,unsigned-integer-overflow
     LDXX: clang++
     compile_the_world: true
diff --git a/config.m4 b/config.m4
index 3f5c853..bbd667c 100644
--- a/config.m4
+++ b/config.m4
@@ -190,7 +190,7 @@
     src/core/lib/surface/completion_queue.c \
     src/core/lib/surface/completion_queue_factory.c \
     src/core/lib/surface/event_string.c \
-    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/lame_client.cc \
     src/core/lib/surface/metadata_array.c \
     src/core/lib/surface/server.c \
     src/core/lib/surface/validate_metadata.c \
@@ -262,6 +262,7 @@
     src/core/tsi/fake_transport_security.c \
     src/core/tsi/ssl_transport_security.c \
     src/core/tsi/transport_security.c \
+    src/core/tsi/transport_security_adapter.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
     src/core/ext/filters/client_channel/channel_connectivity.c \
diff --git a/doc/g_stands_for.md b/doc/g_stands_for.md
index d2fc7a5..2078bb3 100644
--- a/doc/g_stands_for.md
+++ b/doc/g_stands_for.md
@@ -8,3 +8,4 @@
 - 1.1 'g' stands for 'good'
 - 1.2 'g' stands for 'green'
 - 1.3 'g' stands for 'gentle'
+- 1.4 'g' stands for 'gregarious'
diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 66a034d..b040621 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -81,9 +81,8 @@
     Client marks the request as cacheable by setting the cacheable flag in the
     request context. Longer term this should be driven by the method option
     specified in the proto file itself.
- 2. Client calls CacheableUnaryCall with `SimpleRequest` request again
-    immediately with the same payload as the previous request. Cacheable flag is
-    also set for this request's context.
+ 2. Client calls CacheableUnaryCall again immediately with the same request and
+    configuration as the previous call.
 
 Client asserts:
 * Both calls were successful
@@ -986,6 +985,7 @@
 `response_type`, then it should fail the RPC with `INVALID_ARGUMENT`.
 
 ### CacheableUnaryCall
+[CacheableUnaryCall]: #cacheableunarycall
 
 Server gets the default SimpleRequest proto as the request. The content of the
 request is ignored. It returns the SimpleResponse proto with the payload set
diff --git a/doc/service_config.md b/doc/service_config.md
index ecc2381..8039fca 100644
--- a/doc/service_config.md
+++ b/doc/service_config.md
@@ -13,12 +13,21 @@
 ```
 {
   // Load balancing policy name.
-  // Supported values are 'round_robin' and 'grpclb'.
-  // Optional; if unset, the default behavior is pick the first available
-  // backend.
-  // Note that if the resolver returns only balancer addresses and no
-  // backend addresses, gRPC will always use the 'grpclb' policy,
-  // regardless of what this field is set to.
+  // Currently, the only selectable client-side policy provided with gRPC
+  // is 'round_robin', but third parties may add their own policies.
+  // This field is optional; if unset, the default behavior is to pick
+  // the first available backend.
+  // If the policy name is set via the client API, that value overrides
+  // the value specified here.
+  //
+  // Note that if the resolver returns at least one balancer address (as
+  // opposed to backend addresses), gRPC will use grpclb (see
+  // https://github.com/grpc/grpc/blob/master/doc/load-balancing.md),
+  // regardless of what LB policy is requested either here or via the
+  // client API.  However, if the resolver returns at least one backend
+  // address in addition to the balancer address(es), the client may fall
+  // back to the requested policy if it is unable to reach any of the
+  // grpclb load balancers.
   'loadBalancingPolicy': string,
 
   // Per-method configuration.  Optional.
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 4bd9cd9..07755ac 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -197,9 +197,13 @@
     # To save you from scrolling, this is the last part of the podspec.
     ss.source_files = 'src/core/lib/profiling/timers.h',
                       'src/core/lib/support/arena.h',
+                      'src/core/lib/support/atomic.h',
+                      'src/core/lib/support/atomic_with_atm.h',
+                      'src/core/lib/support/atomic_with_std.h',
                       'src/core/lib/support/backoff.h',
                       'src/core/lib/support/block_annotate.h',
                       'src/core/lib/support/env.h',
+                      'src/core/lib/support/memory.h',
                       'src/core/lib/support/mpscq.h',
                       'src/core/lib/support/murmur_hash.h',
                       'src/core/lib/support/spinlock.h',
@@ -407,6 +411,7 @@
                       'src/core/tsi/ssl_transport_security.h',
                       'src/core/tsi/ssl_types.h',
                       'src/core/tsi/transport_security.h',
+                      'src/core/tsi/transport_security_adapter.h',
                       'src/core/tsi/transport_security_interface.h',
                       'src/core/ext/transport/chttp2/server/chttp2_server.h',
                       'src/core/ext/filters/client_channel/client_channel.h',
@@ -562,7 +567,7 @@
                       'src/core/lib/surface/completion_queue.c',
                       'src/core/lib/surface/completion_queue_factory.c',
                       'src/core/lib/surface/event_string.c',
-                      'src/core/lib/surface/lame_client.c',
+                      'src/core/lib/surface/lame_client.cc',
                       'src/core/lib/surface/metadata_array.c',
                       'src/core/lib/surface/server.c',
                       'src/core/lib/surface/validate_metadata.c',
@@ -634,6 +639,7 @@
                       'src/core/tsi/fake_transport_security.c',
                       'src/core/tsi/ssl_transport_security.c',
                       'src/core/tsi/transport_security.c',
+                      'src/core/tsi/transport_security_adapter.c',
                       'src/core/ext/transport/chttp2/server/chttp2_server.c',
                       'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
                       'src/core/ext/filters/client_channel/channel_connectivity.c',
@@ -698,9 +704,13 @@
 
     ss.private_header_files = 'src/core/lib/profiling/timers.h',
                               'src/core/lib/support/arena.h',
+                              'src/core/lib/support/atomic.h',
+                              'src/core/lib/support/atomic_with_atm.h',
+                              'src/core/lib/support/atomic_with_std.h',
                               'src/core/lib/support/backoff.h',
                               'src/core/lib/support/block_annotate.h',
                               'src/core/lib/support/env.h',
+                              'src/core/lib/support/memory.h',
                               'src/core/lib/support/mpscq.h',
                               'src/core/lib/support/murmur_hash.h',
                               'src/core/lib/support/spinlock.h',
@@ -862,6 +872,7 @@
                               'src/core/tsi/ssl_transport_security.h',
                               'src/core/tsi/ssl_types.h',
                               'src/core/tsi/transport_security.h',
+                              'src/core/tsi/transport_security_adapter.h',
                               'src/core/tsi/transport_security_interface.h',
                               'src/core/ext/transport/chttp2/server/chttp2_server.h',
                               'src/core/ext/filters/client_channel/client_channel.h',
diff --git a/grpc.def b/grpc.def
index 8b64b37..293f2d8 100644
--- a/grpc.def
+++ b/grpc.def
@@ -89,7 +89,6 @@
     grpc_server_request_registered_call
     grpc_server_create
     grpc_server_register_completion_queue
-    grpc_server_register_non_listening_completion_queue
     grpc_server_add_insecure_http2_port
     grpc_server_start
     grpc_server_shutdown_and_notify
diff --git a/grpc.gemspec b/grpc.gemspec
index e53bd29..1cd6d66 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -82,9 +82,13 @@
   s.files += %w( include/grpc/impl/codegen/sync_windows.h )
   s.files += %w( src/core/lib/profiling/timers.h )
   s.files += %w( src/core/lib/support/arena.h )
+  s.files += %w( src/core/lib/support/atomic.h )
+  s.files += %w( src/core/lib/support/atomic_with_atm.h )
+  s.files += %w( src/core/lib/support/atomic_with_std.h )
   s.files += %w( src/core/lib/support/backoff.h )
   s.files += %w( src/core/lib/support/block_annotate.h )
   s.files += %w( src/core/lib/support/env.h )
+  s.files += %w( src/core/lib/support/memory.h )
   s.files += %w( src/core/lib/support/mpscq.h )
   s.files += %w( src/core/lib/support/murmur_hash.h )
   s.files += %w( src/core/lib/support/spinlock.h )
@@ -323,6 +327,7 @@
   s.files += %w( src/core/tsi/ssl_transport_security.h )
   s.files += %w( src/core/tsi/ssl_types.h )
   s.files += %w( src/core/tsi/transport_security.h )
+  s.files += %w( src/core/tsi/transport_security_adapter.h )
   s.files += %w( src/core/tsi/transport_security_interface.h )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.h )
   s.files += %w( src/core/ext/filters/client_channel/client_channel.h )
@@ -478,7 +483,7 @@
   s.files += %w( src/core/lib/surface/completion_queue.c )
   s.files += %w( src/core/lib/surface/completion_queue_factory.c )
   s.files += %w( src/core/lib/surface/event_string.c )
-  s.files += %w( src/core/lib/surface/lame_client.c )
+  s.files += %w( src/core/lib/surface/lame_client.cc )
   s.files += %w( src/core/lib/surface/metadata_array.c )
   s.files += %w( src/core/lib/surface/server.c )
   s.files += %w( src/core/lib/surface/validate_metadata.c )
@@ -550,6 +555,7 @@
   s.files += %w( src/core/tsi/fake_transport_security.c )
   s.files += %w( src/core/tsi/ssl_transport_security.c )
   s.files += %w( src/core/tsi/transport_security.c )
+  s.files += %w( src/core/tsi/transport_security_adapter.c )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.c )
   s.files += %w( src/core/ext/transport/chttp2/client/secure/secure_channel_create.c )
   s.files += %w( src/core/ext/filters/client_channel/channel_connectivity.c )
diff --git a/include/grpc++/impl/codegen/client_unary_call.h b/include/grpc++/impl/codegen/client_unary_call.h
index a5a4f3d..4bf35ae 100644
--- a/include/grpc++/impl/codegen/client_unary_call.h
+++ b/include/grpc++/impl/codegen/client_unary_call.h
@@ -52,7 +52,9 @@
 Status BlockingUnaryCall(ChannelInterface* channel, const RpcMethod& method,
                          ClientContext* context, const InputMessage& request,
                          OutputMessage* result) {
-  CompletionQueue cq(true);  // Pluckable completion queue
+  CompletionQueue cq(grpc_completion_queue_attributes{
+      GRPC_CQ_CURRENT_VERSION, GRPC_CQ_PLUCK,
+      GRPC_CQ_DEFAULT_POLLING});  // Pluckable completion queue
   Call call(channel->CreateCall(method, context, &cq));
   CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
             CallOpRecvInitialMetadata, CallOpRecvMessage<OutputMessage>,
diff --git a/include/grpc++/impl/codegen/completion_queue.h b/include/grpc++/impl/codegen/completion_queue.h
index 61617f2..c8ab726 100644
--- a/include/grpc++/impl/codegen/completion_queue.h
+++ b/include/grpc++/impl/codegen/completion_queue.h
@@ -102,7 +102,9 @@
  public:
   /// Default constructor. Implicitly creates a \a grpc_completion_queue
   /// instance.
-  CompletionQueue() : CompletionQueue(false) {}
+  CompletionQueue()
+      : CompletionQueue(grpc_completion_queue_attributes{
+            GRPC_CQ_CURRENT_VERSION, GRPC_CQ_NEXT, GRPC_CQ_DEFAULT_POLLING}) {}
 
   /// Wrap \a take, taking ownership of the instance.
   ///
@@ -182,6 +184,16 @@
   };
   void CompleteAvalanching();
 
+ protected:
+  /// Private constructor of CompletionQueue only visible to friend classes
+  CompletionQueue(const grpc_completion_queue_attributes& attributes) {
+    cq_ = g_core_codegen_interface->grpc_completion_queue_create(
+        g_core_codegen_interface->grpc_completion_queue_factory_lookup(
+            &attributes),
+        &attributes, NULL);
+    InitialAvalanching();  // reserve this for the future shutdown
+  }
+
  private:
   // Friend synchronous wrappers so that they can access Pluck(), which is
   // a semi-private API geared towards the synchronous implementation.
@@ -215,18 +227,6 @@
                                   const InputMessage& request,
                                   OutputMessage* result);
 
-  /// Private constructor of CompletionQueue only visible to friend classes
-  CompletionQueue(bool is_pluck) {
-    if (is_pluck) {
-      cq_ = g_core_codegen_interface->grpc_completion_queue_create_for_pluck(
-          nullptr);
-    } else {
-      cq_ = g_core_codegen_interface->grpc_completion_queue_create_for_next(
-          nullptr);
-    }
-    InitialAvalanching();  // reserve this for the future shutdown
-  }
-
   NextStatus AsyncNextInternal(void** tag, bool* ok, gpr_timespec deadline);
 
   /// Wraps \a grpc_completion_queue_pluck.
@@ -289,17 +289,19 @@
 /// by servers. Instantiated by \a ServerBuilder.
 class ServerCompletionQueue : public CompletionQueue {
  public:
-  bool IsFrequentlyPolled() { return is_frequently_polled_; }
+  bool IsFrequentlyPolled() { return polling_type_ != GRPC_CQ_NON_LISTENING; }
 
  private:
-  bool is_frequently_polled_;
+  grpc_cq_polling_type polling_type_;
   friend class ServerBuilder;
   /// \param is_frequently_polled Informs the GRPC library about whether the
   /// server completion queue would be actively polled (by calling Next() or
   /// AsyncNext()). By default all server completion queues are assumed to be
   /// frequently polled.
-  ServerCompletionQueue(bool is_frequently_polled = true)
-      : is_frequently_polled_(is_frequently_polled) {}
+  ServerCompletionQueue(grpc_cq_polling_type polling_type)
+      : CompletionQueue(grpc_completion_queue_attributes{
+            GRPC_CQ_CURRENT_VERSION, GRPC_CQ_NEXT, polling_type}),
+        polling_type_(polling_type) {}
 };
 
 }  // namespace grpc
diff --git a/include/grpc++/impl/codegen/core_codegen.h b/include/grpc++/impl/codegen/core_codegen.h
index 8660107..a159372 100644
--- a/include/grpc++/impl/codegen/core_codegen.h
+++ b/include/grpc++/impl/codegen/core_codegen.h
@@ -44,8 +44,15 @@
 namespace grpc {
 
 /// Implementation of the core codegen interface.
-class CoreCodegen : public CoreCodegenInterface {
+class CoreCodegen final : public CoreCodegenInterface {
  private:
+  virtual const grpc_completion_queue_factory*
+  grpc_completion_queue_factory_lookup(
+      const grpc_completion_queue_attributes* attributes) override;
+  virtual grpc_completion_queue* grpc_completion_queue_create(
+      const grpc_completion_queue_factory* factory,
+      const grpc_completion_queue_attributes* attributes,
+      void* reserved) override;
   grpc_completion_queue* grpc_completion_queue_create_for_next(
       void* reserved) override;
   grpc_completion_queue* grpc_completion_queue_create_for_pluck(
diff --git a/include/grpc++/impl/codegen/core_codegen_interface.h b/include/grpc++/impl/codegen/core_codegen_interface.h
index a0665f4..7cc3a82 100644
--- a/include/grpc++/impl/codegen/core_codegen_interface.h
+++ b/include/grpc++/impl/codegen/core_codegen_interface.h
@@ -59,6 +59,12 @@
   virtual void assert_fail(const char* failed_assertion, const char* file,
                            int line) = 0;
 
+  virtual const grpc_completion_queue_factory*
+  grpc_completion_queue_factory_lookup(
+      const grpc_completion_queue_attributes* attributes) = 0;
+  virtual grpc_completion_queue* grpc_completion_queue_create(
+      const grpc_completion_queue_factory* factory,
+      const grpc_completion_queue_attributes* attributes, void* reserved) = 0;
   virtual grpc_completion_queue* grpc_completion_queue_create_for_next(
       void* reserved) = 0;
   virtual grpc_completion_queue* grpc_completion_queue_create_for_pluck(
diff --git a/include/grpc++/impl/codegen/proto_utils.h b/include/grpc++/impl/codegen/proto_utils.h
index 6df9de4..8c0c32b 100644
--- a/include/grpc++/impl/codegen/proto_utils.h
+++ b/include/grpc++/impl/codegen/proto_utils.h
@@ -52,7 +52,7 @@
 
 class GrpcBufferWriterPeer;
 
-const int kGrpcBufferWriterMaxBufferLength = 8192;
+const int kGrpcBufferWriterMaxBufferLength = 1024 * 1024;
 
 class GrpcBufferWriter final
     : public ::grpc::protobuf::io::ZeroCopyOutputStream {
diff --git a/include/grpc++/impl/codegen/sync_stream.h b/include/grpc++/impl/codegen/sync_stream.h
index 328d5cb..a010924 100644
--- a/include/grpc++/impl/codegen/sync_stream.h
+++ b/include/grpc++/impl/codegen/sync_stream.h
@@ -156,7 +156,9 @@
   ClientReader(ChannelInterface* channel, const RpcMethod& method,
                ClientContext* context, const W& request)
       : context_(context),
-        cq_(true),  // Pluckable cq
+        cq_(grpc_completion_queue_attributes{
+            GRPC_CQ_CURRENT_VERSION, GRPC_CQ_PLUCK,
+            GRPC_CQ_DEFAULT_POLLING}),  // Pluckable cq
         call_(channel->CreateCall(method, context, &cq_)) {
     CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
               CallOpClientSendClose>
@@ -230,7 +232,9 @@
   ClientWriter(ChannelInterface* channel, const RpcMethod& method,
                ClientContext* context, R* response)
       : context_(context),
-        cq_(true),  // Pluckable cq
+        cq_(grpc_completion_queue_attributes{
+            GRPC_CQ_CURRENT_VERSION, GRPC_CQ_PLUCK,
+            GRPC_CQ_DEFAULT_POLLING}),  // Pluckable cq
         call_(channel->CreateCall(method, context, &cq_)) {
     finish_ops_.RecvMessage(response);
     finish_ops_.AllowNoMessage();
@@ -330,7 +334,9 @@
   ClientReaderWriter(ChannelInterface* channel, const RpcMethod& method,
                      ClientContext* context)
       : context_(context),
-        cq_(true),  // Pluckable cq
+        cq_(grpc_completion_queue_attributes{
+            GRPC_CQ_CURRENT_VERSION, GRPC_CQ_PLUCK,
+            GRPC_CQ_DEFAULT_POLLING}),  // Pluckable cq
         call_(channel->CreateCall(method, context, &cq_)) {
     if (!context_->initial_metadata_corked_) {
       CallOpSet<CallOpSendInitialMetadata> ops;
diff --git a/include/grpc++/test/mock_stream.h b/include/grpc++/test/mock_stream.h
new file mode 100644
index 0000000..f2de947
--- /dev/null
+++ b/include/grpc++/test/mock_stream.h
@@ -0,0 +1,163 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPCXX_TEST_MOCK_STREAM_H
+#define GRPCXX_TEST_MOCK_STREAM_H
+
+#include <stdint.h>
+
+#include <gmock/gmock.h>
+#include <grpc++/impl/codegen/call.h>
+#include <grpc++/support/async_stream.h>
+#include <grpc++/support/async_unary_call.h>
+#include <grpc++/support/sync_stream.h>
+
+namespace grpc {
+namespace testing {
+
+template <class R>
+class MockClientReader : public ClientReaderInterface<R> {
+ public:
+  MockClientReader() = default;
+
+  // ClientStreamingInterface
+  MOCK_METHOD0_T(Finish, Status());
+
+  // ReaderInterface
+  MOCK_METHOD1_T(NextMessageSize, bool(uint32_t*));
+  MOCK_METHOD1_T(Read, bool(R*));
+
+  // ClientReaderInterface
+  MOCK_METHOD0_T(WaitForInitialMetadata, void());
+};
+
+template <class W>
+class MockClientWriter : public ClientWriterInterface<W> {
+ public:
+  MockClientWriter() = default;
+
+  // ClientStreamingInterface
+  MOCK_METHOD0_T(Finish, Status());
+
+  // WriterInterface
+  MOCK_METHOD2_T(Write, bool(const W&, const WriteOptions));
+
+  // ClientWriterInterface
+  MOCK_METHOD0_T(WritesDone, bool());
+};
+
+template <class W, class R>
+class MockClientReaderWriter : public ClientReaderWriterInterface<W, R> {
+ public:
+  MockClientReaderWriter() = default;
+
+  // ClientStreamingInterface
+  MOCK_METHOD0_T(Finish, Status());
+
+  // ReaderInterface
+  MOCK_METHOD1_T(NextMessageSize, bool(uint32_t*));
+  MOCK_METHOD1_T(Read, bool(R*));
+
+  // WriterInterface
+  MOCK_METHOD2_T(Write, bool(const W&, const WriteOptions));
+
+  // ClientReaderWriterInterface
+  MOCK_METHOD0_T(WaitForInitialMetadata, void());
+  MOCK_METHOD0_T(WritesDone, bool());
+};
+
+// TODO: We do not support mocking an async RPC for now.
+
+template <class R>
+class MockClientAsyncResponseReader
+    : public ClientAsyncResponseReaderInterface<R> {
+ public:
+  MockClientAsyncResponseReader() = default;
+
+  MOCK_METHOD1_T(ReadInitialMetadata, void(void*));
+  MOCK_METHOD3_T(Finish, void(R*, Status*, void*));
+};
+
+template <class R>
+class MockClientAsyncReader : public ClientAsyncReaderInterface<R> {
+ public:
+  MockClientAsyncReader() = default;
+
+  // ClientAsyncStreamingInterface
+  MOCK_METHOD1_T(ReadInitialMetadata, void(void*));
+  MOCK_METHOD2_T(Finish, void(Status*, void*));
+
+  // AsyncReaderInterface
+  MOCK_METHOD2_T(Read, void(R*, void*));
+};
+
+template <class W>
+class MockClientAsyncWriter : public ClientAsyncWriterInterface<W> {
+ public:
+  MockClientAsyncWriter() = default;
+
+  // ClientAsyncStreamingInterface
+  MOCK_METHOD1_T(ReadInitialMetadata, void(void*));
+  MOCK_METHOD2_T(Finish, void(Status*, void*));
+
+  // AsyncWriterInterface
+  MOCK_METHOD2_T(Write, void(const W&, void*));
+
+  // ClientAsyncWriterInterface
+  MOCK_METHOD1_T(WritesDone, void(void*));
+};
+
+template <class W, class R>
+class MockClientAsyncReaderWriter
+    : public ClientAsyncReaderWriterInterface<W, R> {
+ public:
+  MockClientAsyncReaderWriter() = default;
+
+  // ClientAsyncStreamingInterface
+  MOCK_METHOD1_T(ReadInitialMetadata, void(void*));
+  MOCK_METHOD2_T(Finish, void(Status*, void*));
+
+  // AsyncWriterInterface
+  MOCK_METHOD2_T(Write, void(const W&, void*));
+
+  // AsyncReaderInterface
+  MOCK_METHOD2_T(Read, void(R*, void*));
+
+  // ClientAsyncReaderWriterInterface
+  MOCK_METHOD1_T(WritesDone, void(void*));
+};
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPCXX_TEST_MOCK_STREAM_H
diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index 5ded451..1eeb075 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -93,55 +93,6 @@
 /** Return a string specifying what the 'g' in gRPC stands for */
 GRPCAPI const char *grpc_g_stands_for(void);
 
-/** Specifies the type of APIs to use to pop events from the completion queue */
-typedef enum {
-  /** Events are popped out by calling grpc_completion_queue_next() API ONLY */
-  GRPC_CQ_NEXT = 1,
-
-  /** Events are popped out by calling grpc_completion_queue_pluck() API ONLY*/
-  GRPC_CQ_PLUCK
-} grpc_cq_completion_type;
-
-/** Completion queues internally MAY maintain a set of file descriptors in a
-    structure called 'pollset'. This enum specifies if a completion queue has an
-    associated pollset and any restrictions on the type of file descriptors that
-    can be present in the pollset.
-
-    I/O progress can only be made when grpc_completion_queue_next() or
-    grpc_completion_queue_pluck() are called on the completion queue (unless the
-    grpc_cq_polling_type is GRPC_CQ_NON_POLLING) and hence it is very important
-    to actively call these APIs */
-typedef enum {
-  /** The completion queue will have an associated pollset and there is no
-      restriction on the type of file descriptors the pollset may contain */
-  GRPC_CQ_DEFAULT_POLLING,
-
-  /** Similar to GRPC_CQ_DEFAULT_POLLING except that the completion queues will
-      not contain any 'listening file descriptors' (i.e file descriptors used to
-      listen to incoming channels) */
-  GRPC_CQ_NON_LISTENING,
-
-  /** The completion queue will not have an associated pollset. Note that
-      grpc_completion_queue_next() or grpc_completion_queue_pluck() MUST still
-      be called to pop events from the completion queue; it is not required to
-      call them actively to make I/O progress */
-  GRPC_CQ_NON_POLLING
-} grpc_cq_polling_type;
-
-#define GRPC_CQ_CURRENT_VERSION 1
-typedef struct grpc_completion_queue_attributes {
-  /* The version number of this structure. More fields might be added to this
-     structure in future. */
-  int version; /* Set to GRPC_CQ_CURRENT_VERSION */
-
-  grpc_cq_completion_type cq_completion_type;
-
-  grpc_cq_polling_type cq_polling_type;
-} grpc_completion_queue_attributes;
-
-/** The completion queue factory structure is opaque to the callers of grpc */
-typedef struct grpc_completion_queue_factory grpc_completion_queue_factory;
-
 /** Returns the completion queue factory based on the attributes. MAY return a
     NULL if no factory can be found */
 GRPCAPI const grpc_completion_queue_factory *
@@ -427,15 +378,6 @@
                                                    grpc_completion_queue *cq,
                                                    void *reserved);
 
-/** Register a non-listening completion queue with the server. This API is
-    similar to grpc_server_register_completion_queue except that the server will
-    not use this completion_queue to listen to any incoming channels.
-
-    Registering a non-listening completion queue will have negative performance
-    impact and hence this API is not recommended for production use cases. */
-GRPCAPI void grpc_server_register_non_listening_completion_queue(
-    grpc_server *server, grpc_completion_queue *q, void *reserved);
-
 /** Add a HTTP2 over plaintext over tcp listener.
     Returns bound port number on success, 0 on failure.
     REQUIRES: server not started */
diff --git a/include/grpc/grpc_security.h b/include/grpc/grpc_security.h
index 79199cc..5d3cc4f 100644
--- a/include/grpc/grpc_security.h
+++ b/include/grpc/grpc_security.h
@@ -158,7 +158,7 @@
 } grpc_ssl_pem_key_cert_pair;
 
 /* Creates an SSL credentials object.
-   - pem_roots_cert is the NULL-terminated string containing the PEM encoding
+   - pem_root_certs is the NULL-terminated string containing the PEM encoding
      of the server root certificates. If this parameter is NULL, the
      implementation will first try to dereference the file pointed by the
      GRPC_DEFAULT_SSL_ROOTS_FILE_PATH environment variable, and if that fails,
diff --git a/include/grpc/impl/codegen/compression_types.h b/include/grpc/impl/codegen/compression_types.h
index 170d99f..a563711 100644
--- a/include/grpc/impl/codegen/compression_types.h
+++ b/include/grpc/impl/codegen/compression_types.h
@@ -34,8 +34,7 @@
 #ifndef GRPC_IMPL_CODEGEN_COMPRESSION_TYPES_H
 #define GRPC_IMPL_CODEGEN_COMPRESSION_TYPES_H
 
-#include <stdbool.h>
-#include <stdint.h>
+#include <grpc/impl/codegen/port_platform.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -101,7 +100,7 @@
    * precedence over \a default_algorithm.
    * TODO(dgq): currently only available for server channels. */
   struct {
-    bool is_set;
+    int is_set;
     grpc_compression_level level;
   } default_level;
 
@@ -109,7 +108,7 @@
    * call specific settings. This option corresponds to the channel argument key
    * behind \a GRPC_COMPRESSION_CHANNEL_DEFAULT_ALGORITHM. */
   struct {
-    bool is_set;
+    int is_set;
     grpc_compression_algorithm algorithm;
   } default_algorithm;
 
diff --git a/include/grpc/impl/codegen/gpr_types.h b/include/grpc/impl/codegen/gpr_types.h
index ed9976f..34d8156 100644
--- a/include/grpc/impl/codegen/gpr_types.h
+++ b/include/grpc/impl/codegen/gpr_types.h
@@ -37,7 +37,6 @@
 #include <grpc/impl/codegen/port_platform.h>
 
 #include <stddef.h>
-#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index b5d637e..b2c38b2 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -34,6 +34,8 @@
 #ifndef GRPC_IMPL_CODEGEN_GRPC_TYPES_H
 #define GRPC_IMPL_CODEGEN_GRPC_TYPES_H
 
+#include <grpc/impl/codegen/port_platform.h>
+
 #include <grpc/impl/codegen/compression_types.h>
 #include <grpc/impl/codegen/exec_ctx_fwd.h>
 #include <grpc/impl/codegen/gpr_types.h>
@@ -41,7 +43,6 @@
 #include <grpc/impl/codegen/status.h>
 
 #include <stddef.h>
-#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -556,6 +557,55 @@
 
 typedef struct grpc_resource_quota grpc_resource_quota;
 
+/** Completion queues internally MAY maintain a set of file descriptors in a
+    structure called 'pollset'. This enum specifies if a completion queue has an
+    associated pollset and any restrictions on the type of file descriptors that
+    can be present in the pollset.
+
+    I/O progress can only be made when grpc_completion_queue_next() or
+    grpc_completion_queue_pluck() are called on the completion queue (unless the
+    grpc_cq_polling_type is GRPC_CQ_NON_POLLING) and hence it is very important
+    to actively call these APIs */
+typedef enum {
+  /** The completion queue will have an associated pollset and there is no
+      restriction on the type of file descriptors the pollset may contain */
+  GRPC_CQ_DEFAULT_POLLING,
+
+  /** Similar to GRPC_CQ_DEFAULT_POLLING except that the completion queues will
+      not contain any 'listening file descriptors' (i.e file descriptors used to
+      listen to incoming channels) */
+  GRPC_CQ_NON_LISTENING,
+
+  /** The completion queue will not have an associated pollset. Note that
+      grpc_completion_queue_next() or grpc_completion_queue_pluck() MUST still
+      be called to pop events from the completion queue; it is not required to
+      call them actively to make I/O progress */
+  GRPC_CQ_NON_POLLING
+} grpc_cq_polling_type;
+
+/** Specifies the type of APIs to use to pop events from the completion queue */
+typedef enum {
+  /** Events are popped out by calling grpc_completion_queue_next() API ONLY */
+  GRPC_CQ_NEXT = 1,
+
+  /** Events are popped out by calling grpc_completion_queue_pluck() API ONLY*/
+  GRPC_CQ_PLUCK
+} grpc_cq_completion_type;
+
+#define GRPC_CQ_CURRENT_VERSION 1
+typedef struct grpc_completion_queue_attributes {
+  /* The version number of this structure. More fields might be added to this
+     structure in future. */
+  int version; /* Set to GRPC_CQ_CURRENT_VERSION */
+
+  grpc_cq_completion_type cq_completion_type;
+
+  grpc_cq_polling_type cq_polling_type;
+} grpc_completion_queue_attributes;
+
+/** The completion queue factory structure is opaque to the callers of grpc */
+typedef struct grpc_completion_queue_factory grpc_completion_queue_factory;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index 813e08b..e12f6f4 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -290,6 +290,12 @@
 #endif
 #endif /* GPR_NO_AUTODETECT_PLATFORM */
 
+#if defined(__has_include)
+#if __has_include(<atomic>)
+#define GRPC_HAS_CXX11_ATOMIC
+#endif /* __has_include(<atomic>) */
+#endif /* defined(__has_include) */
+
 #ifndef GPR_PLATFORM_STRING
 #warning "GPR_PLATFORM_STRING not auto-detected"
 #define GPR_PLATFORM_STRING "unknown"
diff --git a/include/grpc/impl/codegen/slice.h b/include/grpc/impl/codegen/slice.h
index 0b09a0b..b89a3f7 100644
--- a/include/grpc/impl/codegen/slice.h
+++ b/include/grpc/impl/codegen/slice.h
@@ -34,8 +34,9 @@
 #ifndef GRPC_IMPL_CODEGEN_SLICE_H
 #define GRPC_IMPL_CODEGEN_SLICE_H
 
+#include <grpc/impl/codegen/port_platform.h>
+
 #include <stddef.h>
-#include <stdint.h>
 
 #include <grpc/impl/codegen/exec_ctx_fwd.h>
 #include <grpc/impl/codegen/gpr_slice.h>
diff --git a/package.xml b/package.xml
index 8e6b30e..e7d67ec 100644
--- a/package.xml
+++ b/package.xml
@@ -91,9 +91,13 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_windows.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/profiling/timers.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/arena.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/atomic.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/atomic_with_atm.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/atomic_with_std.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/backoff.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/block_annotate.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/env.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/memory.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/mpscq.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/murmur_hash.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/spinlock.h" role="src" />
@@ -332,6 +336,7 @@
     <file baseinstalldir="/" name="src/core/tsi/ssl_transport_security.h" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/ssl_types.h" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/transport_security.h" role="src" />
+    <file baseinstalldir="/" name="src/core/tsi/transport_security_adapter.h" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/transport_security_interface.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel.h" role="src" />
@@ -487,7 +492,7 @@
     <file baseinstalldir="/" name="src/core/lib/surface/completion_queue.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/completion_queue_factory.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/event_string.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/surface/lame_client.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/lame_client.cc" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/metadata_array.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/server.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/validate_metadata.c" role="src" />
@@ -559,6 +564,7 @@
     <file baseinstalldir="/" name="src/core/tsi/fake_transport_security.c" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/ssl_transport_security.c" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/transport_security.c" role="src" />
+    <file baseinstalldir="/" name="src/core/tsi/transport_security_adapter.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/secure/secure_channel_create.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/channel_connectivity.c" role="src" />
diff --git a/setup.py b/setup.py
index e050646..4cbd1a4 100644
--- a/setup.py
+++ b/setup.py
@@ -104,6 +104,7 @@
 if EXTRA_ENV_COMPILE_ARGS is None:
   EXTRA_ENV_COMPILE_ARGS = ''
   if 'win32' in sys.platform and sys.version_info < (3, 5):
+    EXTRA_ENV_COMPILE_ARGS += ' -std=c++11'
     # We use define flags here and don't directly add to DEFINE_MACROS below to
     # ensure that the expert user/builder has a way of turning it off (via the
     # envvars) without adding yet more GRPC-specific envvars.
@@ -114,7 +115,9 @@
       EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
   elif 'win32' in sys.platform:
     EXTRA_ENV_COMPILE_ARGS += ' -D_PYTHON_MSVC'
-  elif "linux" in sys.platform or "darwin" in sys.platform:
+  elif "linux" in sys.platform:
+    EXTRA_ENV_COMPILE_ARGS += ' -std=c++11 -fvisibility=hidden -fno-wrapv'
+  elif "darwin" in sys.platform:
     EXTRA_ENV_COMPILE_ARGS += ' -fvisibility=hidden -fno-wrapv'
 
 if EXTRA_ENV_LINK_ARGS is None:
@@ -192,13 +195,25 @@
   cython_module_files = [os.path.join(PYTHON_STEM,
                                name.replace('.', '/') + '.pyx')
                   for name in CYTHON_EXTENSION_MODULE_NAMES]
+  config = os.environ.get('CONFIG', 'opt')
+  prefix = 'libs/' + config + '/'
+  if "darwin" in sys.platform:
+    extra_objects = [prefix + 'libares.a',
+                     prefix + 'libboringssl.a',
+                     prefix + 'libgpr.a',
+                     prefix + 'libgrpc.a']
+    core_c_files = []
+  else:
+    core_c_files = list(CORE_C_FILES)
+    extra_objects = []
   extensions = [
       _extension.Extension(
           name=module_name,
-          sources=[module_file] + list(CYTHON_HELPER_C_FILES) + list(CORE_C_FILES),
+          sources=[module_file] + list(CYTHON_HELPER_C_FILES) + core_c_files,
           include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
           libraries=list(EXTENSION_LIBRARIES),
           define_macros=list(DEFINE_MACROS),
+          extra_objects=extra_objects,
           extra_compile_args=list(CFLAGS),
           extra_link_args=list(LDFLAGS),
       ) for (module_name, module_file) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)
diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index 4cc6a4c..d3e7162 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc
@@ -1408,4 +1408,180 @@
   return temp;
 }
 
+// TODO(mmukhi): Make sure we need parameters or not.
+grpc::string GetMockPrologue(grpc_generator::File *file,
+                             const Parameters & /*params*/) {
+  grpc::string output;
+  {
+    // Scope the output stream so it closes and finalizes output to the string.
+    auto printer = file->CreatePrinter(&output);
+    std::map<grpc::string, grpc::string> vars;
+
+    vars["filename"] = file->filename();
+    vars["filename_base"] = file->filename_without_ext();
+    vars["message_header_ext"] = message_header_ext();
+    vars["service_header_ext"] = service_header_ext();
+
+    printer->Print(vars, "// Generated by the gRPC C++ plugin.\n");
+    printer->Print(vars,
+                   "// If you make any local change, they will be lost.\n");
+    printer->Print(vars, "// source: $filename$\n\n");
+
+    printer->Print(vars, "#include \"$filename_base$$message_header_ext$\"\n");
+    printer->Print(vars, "#include \"$filename_base$$service_header_ext$\"\n");
+    printer->Print(vars, file->additional_headers().c_str());
+    printer->Print(vars, "\n");
+  }
+  return output;
+}
+
+// TODO(mmukhi): Add client-stream and completion-queue headers.
+grpc::string GetMockIncludes(grpc_generator::File *file,
+                             const Parameters &params) {
+  grpc::string output;
+  {
+    // Scope the output stream so it closes and finalizes output to the string.
+    auto printer = file->CreatePrinter(&output);
+    std::map<grpc::string, grpc::string> vars;
+
+    static const char *headers_strs[] = {
+        "grpc++/impl/codegen/async_stream.h",
+        "grpc++/impl/codegen/sync_stream.h", "gmock/gmock.h",
+    };
+    std::vector<grpc::string> headers(headers_strs, array_end(headers_strs));
+    PrintIncludes(printer.get(), headers, params);
+
+    if (!file->package().empty()) {
+      std::vector<grpc::string> parts = file->package_parts();
+
+      for (auto part = parts.begin(); part != parts.end(); part++) {
+        vars["part"] = *part;
+        printer->Print(vars, "namespace $part$ {\n");
+      }
+    }
+
+    printer->Print(vars, "\n");
+  }
+  return output;
+}
+
+void PrintMockClientMethods(grpc_generator::Printer *printer,
+                            const grpc_generator::Method *method,
+                            std::map<grpc::string, grpc::string> *vars) {
+  (*vars)["Method"] = method->name();
+  (*vars)["Request"] = method->input_type_name();
+  (*vars)["Response"] = method->output_type_name();
+
+  if (method->NoStreaming()) {
+    printer->Print(
+        *vars,
+        "MOCK_METHOD3($Method$, ::grpc::Status(::grpc::ClientContext* context, "
+        "const $Request$& request, $Response$* response));\n");
+    printer->Print(*vars,
+                   "MOCK_METHOD3(Async$Method$Raw, "
+                   "::grpc::ClientAsyncResponseReaderInterface< $Response$>*"
+                   "(::grpc::ClientContext* context, const $Request$& request, "
+                   "::grpc::CompletionQueue* cq));\n");
+  } else if (ClientOnlyStreaming(method)) {
+    printer->Print(
+        *vars,
+        "MOCK_METHOD2($Method$Raw, "
+        "::grpc::ClientWriterInterface< $Request$>*"
+        "(::grpc::ClientContext* context, $Response$* response));\n");
+    printer->Print(*vars,
+                   "MOCK_METHOD4(Async$Method$Raw, "
+                   "::grpc::ClientAsyncWriterInterface< $Request$>*"
+                   "(::grpc::ClientContext* context, $Response$* response, "
+                   "::grpc::CompletionQueue* cq, void* tag));\n");
+  } else if (ServerOnlyStreaming(method)) {
+    printer->Print(
+        *vars,
+        "MOCK_METHOD2($Method$Raw, "
+        "::grpc::ClientReaderInterface< $Response$>*"
+        "(::grpc::ClientContext* context, const $Request$& request));\n");
+    printer->Print(*vars,
+                   "MOCK_METHOD4(Async$Method$Raw, "
+                   "::grpc::ClientAsyncReaderInterface< $Response$>*"
+                   "(::grpc::ClientContext* context, const $Request$& request, "
+                   "::grpc::CompletionQueue* cq, void* tag));\n");
+  } else if (method->BidiStreaming()) {
+    printer->Print(
+        *vars,
+        "MOCK_METHOD1($Method$Raw, "
+        "::grpc::ClientReaderWriterInterface< $Request$, $Response$>*"
+        "(::grpc::ClientContext* context));\n");
+    printer->Print(
+        *vars,
+        "MOCK_METHOD3(Async$Method$Raw, "
+        "::grpc::ClientAsyncReaderWriterInterface<$Request$, $Response$>*"
+        "(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, "
+        "void* tag));\n");
+  }
+}
+
+void PrintMockService(grpc_generator::Printer *printer,
+                      const grpc_generator::Service *service,
+                      std::map<grpc::string, grpc::string> *vars) {
+  (*vars)["Service"] = service->name();
+
+  printer->Print(*vars,
+                 "class Mock$Service$Stub : public $Service$::StubInterface {\n"
+                 " public:\n");
+  printer->Indent();
+  for (int i = 0; i < service->method_count(); ++i) {
+    PrintMockClientMethods(printer, service->method(i).get(), vars);
+  }
+  printer->Outdent();
+  printer->Print("};\n");
+}
+
+grpc::string GetMockServices(grpc_generator::File *file,
+                             const Parameters &params) {
+  grpc::string output;
+  {
+    // Scope the output stream so it closes and finalizes output to the string.
+    auto printer = file->CreatePrinter(&output);
+    std::map<grpc::string, grpc::string> vars;
+    // Package string is empty or ends with a dot. It is used to fully qualify
+    // method names.
+    vars["Package"] = file->package();
+    if (!file->package().empty()) {
+      vars["Package"].append(".");
+    }
+
+    if (!params.services_namespace.empty()) {
+      vars["services_namespace"] = params.services_namespace;
+      printer->Print(vars, "\nnamespace $services_namespace$ {\n\n");
+    }
+
+    for (int i = 0; i < file->service_count(); i++) {
+      PrintMockService(printer.get(), file->service(i).get(), &vars);
+      printer->Print("\n");
+    }
+
+    if (!params.services_namespace.empty()) {
+      printer->Print(vars, "} // namespace $services_namespace$\n\n");
+    }
+  }
+  return output;
+}
+
+grpc::string GetMockEpilogue(grpc_generator::File *file,
+                             const Parameters & /*params*/) {
+  grpc::string temp;
+
+  if (!file->package().empty()) {
+    std::vector<grpc::string> parts = file->package_parts();
+
+    for (auto part = parts.begin(); part != parts.end(); part++) {
+      temp.append("} // namespace ");
+      temp.append(*part);
+      temp.append("\n");
+    }
+    temp.append("\n");
+  }
+
+  return temp;
+}
+
 }  // namespace grpc_cpp_generator
diff --git a/src/compiler/cpp_generator.h b/src/compiler/cpp_generator.h
index 69fd8a9..6119ebe 100644
--- a/src/compiler/cpp_generator.h
+++ b/src/compiler/cpp_generator.h
@@ -65,6 +65,8 @@
   bool use_system_headers;
   // Prefix to any grpc include
   grpc::string grpc_search_path;
+  // Generate GMOCK code to facilitate unit testing.
+  bool generate_mock_code;
 };
 
 // Return the prologue of the generated header file.
@@ -99,6 +101,38 @@
 grpc::string GetSourceEpilogue(grpc_generator::File *file,
                                const Parameters &params);
 
+// Return the prologue of the generated mock file.
+grpc::string GetMockPrologue(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the includes needed for generated mock file.
+grpc::string GetMockIncludes(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the services for generated mock file.
+grpc::string GetMockServices(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the epilogue of generated mock file.
+grpc::string GetMockEpilogue(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the prologue of the generated mock file.
+grpc::string GetMockPrologue(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the includes needed for generated mock file.
+grpc::string GetMockIncludes(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the services for generated mock file.
+grpc::string GetMockServices(grpc_generator::File *file,
+                             const Parameters &params);
+
+// Return the epilogue of generated mock file.
+grpc::string GetMockEpilogue(grpc_generator::File *file,
+                             const Parameters &params);
+
 }  // namespace grpc_cpp_generator
 
 #endif  // GRPC_INTERNAL_COMPILER_CPP_GENERATOR_H
diff --git a/src/compiler/cpp_plugin.cc b/src/compiler/cpp_plugin.cc
index 4ee05ee..35f1bf3 100644
--- a/src/compiler/cpp_plugin.cc
+++ b/src/compiler/cpp_plugin.cc
@@ -62,6 +62,7 @@
 
     grpc_cpp_generator::Parameters generator_parameters;
     generator_parameters.use_system_headers = true;
+    generator_parameters.generate_mock_code = false;
 
     ProtoBufFile pbfile(file);
 
@@ -85,6 +86,13 @@
           }
         } else if (param[0] == "grpc_search_path") {
           generator_parameters.grpc_search_path = param[1];
+        } else if (param[0] == "generate_mock_code") {
+          if (param[1] == "true") {
+            generator_parameters.generate_mock_code = true;
+          } else if (param[1] != "false") {
+            *error = grpc::string("Invalid parameter: ") + *parameter_string;
+            return false;
+          }
         } else {
           *error = grpc::string("Unknown parameter: ") + *parameter_string;
           return false;
@@ -114,6 +122,19 @@
     grpc::protobuf::io::CodedOutputStream source_coded_out(source_output.get());
     source_coded_out.WriteRaw(source_code.data(), source_code.size());
 
+    if (!generator_parameters.generate_mock_code) {
+      return true;
+    }
+    grpc::string mock_code =
+        grpc_cpp_generator::GetMockPrologue(&pbfile, generator_parameters) +
+        grpc_cpp_generator::GetMockIncludes(&pbfile, generator_parameters) +
+        grpc_cpp_generator::GetMockServices(&pbfile, generator_parameters) +
+        grpc_cpp_generator::GetMockEpilogue(&pbfile, generator_parameters);
+    std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> mock_output(
+        context->Open(file_name + "_mock.grpc.pb.h"));
+    grpc::protobuf::io::CodedOutputStream mock_coded_out(mock_output.get());
+    mock_coded_out.WriteRaw(mock_code.data(), mock_code.size());
+
     return true;
   }
 
diff --git a/src/compiler/objective_c_plugin.cc b/src/compiler/objective_c_plugin.cc
index 8de0997..5178115 100644
--- a/src/compiler/objective_c_plugin.cc
+++ b/src/compiler/objective_c_plugin.cc
@@ -68,6 +68,7 @@
       ::grpc::string imports = ::grpc::string("#import \"") + file_name +
                                ".pbobjc.h\"\n\n"
                                "#import <ProtoRPC/ProtoService.h>\n"
+                               "#import <ProtoRPC/ProtoRPC.h>\n"
                                "#import <RxLibrary/GRXWriteable.h>\n"
                                "#import <RxLibrary/GRXWriter.h>\n";
 
diff --git a/src/core/ext/filters/client_channel/client_channel.c b/src/core/ext/filters/client_channel/client_channel.c
index ce9abda..0463b25 100644
--- a/src/core/ext/filters/client_channel/client_channel.c
+++ b/src/core/ext/filters/client_channel/client_channel.c
@@ -96,17 +96,10 @@
   }
 }
 
-static void *method_parameters_copy(void *value) {
-  return method_parameters_ref(value);
-}
-
 static void method_parameters_free(grpc_exec_ctx *exec_ctx, void *value) {
   method_parameters_unref(value);
 }
 
-static const grpc_slice_hash_table_vtable method_parameters_vtable = {
-    method_parameters_free, method_parameters_copy};
-
 static bool parse_wait_for_ready(grpc_json *field,
                                  wait_for_ready_value *wait_for_ready) {
   if (field->type != GRPC_JSON_TRUE && field->type != GRPC_JSON_FALSE) {
@@ -407,26 +400,24 @@
       GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING);
       lb_policy_name = channel_arg->value.string;
     }
-    // Special case: If all of the addresses are balancer addresses,
-    // assume that we should use the grpclb policy, regardless of what the
-    // resolver actually specified.
+    // Special case: If at least one balancer address is present, we use
+    // the grpclb policy, regardless of what the resolver actually specified.
     channel_arg =
         grpc_channel_args_find(chand->resolver_result, GRPC_ARG_LB_ADDRESSES);
     if (channel_arg != NULL && channel_arg->type == GRPC_ARG_POINTER) {
       grpc_lb_addresses *addresses = channel_arg->value.pointer.p;
-      bool found_backend_address = false;
+      bool found_balancer_address = false;
       for (size_t i = 0; i < addresses->num_addresses; ++i) {
-        if (!addresses->addresses[i].is_balancer) {
-          found_backend_address = true;
+        if (addresses->addresses[i].is_balancer) {
+          found_balancer_address = true;
           break;
         }
       }
-      if (!found_backend_address) {
+      if (found_balancer_address) {
         if (lb_policy_name != NULL && strcmp(lb_policy_name, "grpclb") != 0) {
           gpr_log(GPR_INFO,
-                  "resolver requested LB policy %s but provided only balancer "
-                  "addresses, no backend addresses -- forcing use of grpclb LB "
-                  "policy",
+                  "resolver requested LB policy %s but provided at least one "
+                  "balancer address -- forcing use of grpclb LB policy",
                   lb_policy_name);
         }
         lb_policy_name = "grpclb";
@@ -472,7 +463,7 @@
         grpc_uri_destroy(uri);
         method_params_table = grpc_service_config_create_method_config_table(
             exec_ctx, service_config, method_parameters_create_from_json,
-            &method_parameters_vtable);
+            method_parameters_free);
         grpc_service_config_destroy(service_config);
       }
     }
diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
index a271d05..ad5f068 100644
--- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
@@ -750,18 +750,11 @@
   gpr_free(balancer_name);
 }
 
-static void *copy_balancer_name(void *balancer_name) {
-  return gpr_strdup(balancer_name);
-}
-
 static grpc_slice_hash_table_entry targets_info_entry_create(
     const char *address, const char *balancer_name) {
-  static const grpc_slice_hash_table_vtable vtable = {destroy_balancer_name,
-                                                      copy_balancer_name};
   grpc_slice_hash_table_entry entry;
   entry.key = grpc_slice_from_copied_string(address);
-  entry.value = (void *)balancer_name;
-  entry.vtable = &vtable;
+  entry.value = gpr_strdup(balancer_name);
   return entry;
 }
 
@@ -825,11 +818,8 @@
                uri_path);
   gpr_free(uri_path);
 
-  *targets_info =
-      grpc_slice_hash_table_create(num_grpclb_addrs, targets_info_entries);
-  for (size_t i = 0; i < num_grpclb_addrs; i++) {
-    grpc_slice_unref_internal(exec_ctx, targets_info_entries[i].key);
-  }
+  *targets_info = grpc_slice_hash_table_create(
+      num_grpclb_addrs, targets_info_entries, destroy_balancer_name);
   gpr_free(targets_info_entries);
 
   return target_uri_str;
@@ -841,10 +831,10 @@
   /* Count the number of gRPC-LB addresses. There must be at least one.
    * TODO(roth): For now, we ignore non-balancer addresses, but in the
    * future, we may change the behavior such that we fall back to using
-   * the non-balancer addresses if we cannot reach any balancers. At that
-   * time, this should be changed to allow a list with no balancer addresses,
-   * since the resolver might fail to return a balancer address even when
-   * this is the right LB policy to use. */
+   * the non-balancer addresses if we cannot reach any balancers. In the
+   * fallback case, we should use the LB policy indicated by
+   * GRPC_ARG_LB_POLICY_NAME (although if that specifies grpclb or is
+   * unset, we should default to pick_first). */
   const grpc_arg *arg =
       grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES);
   if (arg == NULL || arg->type != GRPC_ARG_POINTER) {
diff --git a/src/core/ext/filters/client_channel/subchannel.c b/src/core/ext/filters/client_channel/subchannel.c
index 967e571..b2de85c 100644
--- a/src/core/ext/filters/client_channel/subchannel.c
+++ b/src/core/ext/filters/client_channel/subchannel.c
@@ -615,7 +615,7 @@
   elem->filter->start_transport_op(exec_ctx, elem, op);
 }
 
-static void publish_transport_locked(grpc_exec_ctx *exec_ctx,
+static bool publish_transport_locked(grpc_exec_ctx *exec_ctx,
                                      grpc_subchannel *c) {
   grpc_connected_subchannel *con;
   grpc_channel_stack *stk;
@@ -631,15 +631,16 @@
   if (!grpc_channel_init_create_stack(exec_ctx, builder,
                                       GRPC_CLIENT_SUBCHANNEL)) {
     grpc_channel_stack_builder_destroy(exec_ctx, builder);
-    abort(); /* TODO(ctiller): what to do here (previously we just crashed) */
+    return false;
   }
   grpc_error *error = grpc_channel_stack_builder_finish(
       exec_ctx, builder, 0, 1, connection_destroy, NULL, (void **)&con);
   if (error != GRPC_ERROR_NONE) {
+    grpc_transport_destroy(exec_ctx, c->connecting_result.transport);
     gpr_log(GPR_ERROR, "error initializing subchannel stack: %s",
             grpc_error_string(error));
     GRPC_ERROR_UNREF(error);
-    abort(); /* TODO(ctiller): what to do here? */
+    return false;
   }
   stk = CHANNEL_STACK_FROM_CONNECTION(con);
   memset(&c->connecting_result, 0, sizeof(c->connecting_result));
@@ -656,7 +657,7 @@
     grpc_channel_stack_destroy(exec_ctx, stk);
     gpr_free(con);
     GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting");
-    return;
+    return false;
   }
 
   /* publish */
@@ -678,6 +679,7 @@
   /* signal completion */
   grpc_connectivity_state_set(exec_ctx, &c->state_tracker, GRPC_CHANNEL_READY,
                               GRPC_ERROR_NONE, "connected");
+  return true;
 }
 
 static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg,
@@ -688,8 +690,9 @@
   GRPC_SUBCHANNEL_WEAK_REF(c, "connected");
   gpr_mu_lock(&c->mu);
   c->connecting = false;
-  if (c->connecting_result.transport != NULL) {
-    publish_transport_locked(exec_ctx, c);
+  if (c->connecting_result.transport != NULL &&
+      publish_transport_locked(exec_ctx, c)) {
+    /* do nothing, transport was published */
   } else if (c->disconnected) {
     GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting");
   } else {
diff --git a/src/core/ext/filters/http/message_compress/message_compress_filter.c b/src/core/ext/filters/http/message_compress/message_compress_filter.c
index f414a60..4f5f41e 100644
--- a/src/core/ext/filters/http/message_compress/message_compress_filter.c
+++ b/src/core/ext/filters/http/message_compress/message_compress_filter.c
@@ -49,8 +49,6 @@
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/static_metadata.h"
 
-int grpc_compression_trace = 0;
-
 #define INITIAL_METADATA_UNSEEN 0
 #define HAS_COMPRESSION_ALGORITHM 2
 #define NO_COMPRESSION_ALGORITHM 4
diff --git a/src/core/ext/filters/message_size/message_size_filter.c b/src/core/ext/filters/message_size/message_size_filter.c
index e3ffc41..b615116 100644
--- a/src/core/ext/filters/message_size/message_size_filter.c
+++ b/src/core/ext/filters/message_size/message_size_filter.c
@@ -50,19 +50,10 @@
   int max_recv_size;
 } message_size_limits;
 
-static void* message_size_limits_copy(void* value) {
-  void* new_value = gpr_malloc(sizeof(message_size_limits));
-  memcpy(new_value, value, sizeof(message_size_limits));
-  return new_value;
-}
-
 static void message_size_limits_free(grpc_exec_ctx* exec_ctx, void* value) {
   gpr_free(value);
 }
 
-static const grpc_slice_hash_table_vtable message_size_limits_vtable = {
-    message_size_limits_free, message_size_limits_copy};
-
 static void* message_size_limits_create_from_json(const grpc_json* json) {
   int max_request_message_bytes = -1;
   int max_response_message_bytes = -1;
@@ -257,7 +248,7 @@
       chand->method_limit_table =
           grpc_service_config_create_method_config_table(
               exec_ctx, service_config, message_size_limits_create_from_json,
-              &message_size_limits_vtable);
+              message_size_limits_free);
       grpc_service_config_destroy(service_config);
     }
   }
diff --git a/src/core/ext/transport/chttp2/server/chttp2_server.c b/src/core/ext/transport/chttp2/server/chttp2_server.c
index b463506..b9c62c3 100644
--- a/src/core/ext/transport/chttp2/server/chttp2_server.c
+++ b/src/core/ext/transport/chttp2/server/chttp2_server.c
@@ -80,7 +80,7 @@
   gpr_mu_lock(&connection_state->server_state->mu);
   if (error != GRPC_ERROR_NONE || connection_state->server_state->shutdown) {
     const char *error_str = grpc_error_string(error);
-    gpr_log(GPR_ERROR, "Handshaking failed: %s", error_str);
+    gpr_log(GPR_DEBUG, "Handshaking failed: %s", error_str);
 
     if (error == GRPC_ERROR_NONE && args->endpoint != NULL) {
       // We were shut down after handshaking completed successfully, so
diff --git a/src/core/lib/channel/connected_channel.c b/src/core/lib/channel/connected_channel.c
index 22caf24..d898526 100644
--- a/src/core/lib/channel/connected_channel.c
+++ b/src/core/lib/channel/connected_channel.c
@@ -128,7 +128,9 @@
 static void destroy_channel_elem(grpc_exec_ctx *exec_ctx,
                                  grpc_channel_element *elem) {
   channel_data *cd = (channel_data *)elem->channel_data;
-  grpc_transport_destroy(exec_ctx, cd->transport);
+  if (cd->transport) {
+    grpc_transport_destroy(exec_ctx, cd->transport);
+  }
 }
 
 static char *con_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) {
diff --git a/src/core/lib/http/httpcli_security_connector.c b/src/core/lib/http/httpcli_security_connector.c
index 9eab136..7694643 100644
--- a/src/core/lib/http/httpcli_security_connector.c
+++ b/src/core/lib/http/httpcli_security_connector.c
@@ -106,9 +106,8 @@
     httpcli_ssl_destroy, httpcli_ssl_check_peer};
 
 static grpc_security_status httpcli_ssl_channel_security_connector_create(
-    grpc_exec_ctx *exec_ctx, const unsigned char *pem_root_certs,
-    size_t pem_root_certs_size, const char *secure_peer_name,
-    grpc_channel_security_connector **sc) {
+    grpc_exec_ctx *exec_ctx, const char *pem_root_certs,
+    const char *secure_peer_name, grpc_channel_security_connector **sc) {
   tsi_result result = TSI_OK;
   grpc_httpcli_ssl_channel_security_connector *c;
 
@@ -126,8 +125,7 @@
     c->secure_peer_name = gpr_strdup(secure_peer_name);
   }
   result = tsi_create_ssl_client_handshaker_factory(
-      NULL, 0, NULL, 0, pem_root_certs, pem_root_certs_size, NULL, NULL, NULL,
-      0, &c->handshaker_factory);
+      NULL, pem_root_certs, NULL, NULL, 0, &c->handshaker_factory);
   if (result != TSI_OK) {
     gpr_log(GPR_ERROR, "Handshaker factory creation failed with %s.",
             tsi_result_to_string(result));
@@ -173,10 +171,9 @@
                           void (*on_done)(grpc_exec_ctx *exec_ctx, void *arg,
                                           grpc_endpoint *endpoint)) {
   grpc_channel_security_connector *sc = NULL;
-  const unsigned char *pem_root_certs = NULL;
   on_done_closure *c = gpr_malloc(sizeof(*c));
-  size_t pem_root_certs_size = grpc_get_default_ssl_roots(&pem_root_certs);
-  if (pem_root_certs == NULL || pem_root_certs_size == 0) {
+  const char *pem_root_certs = grpc_get_default_ssl_roots();
+  if (pem_root_certs == NULL) {
     gpr_log(GPR_ERROR, "Could not get default pem root certs.");
     on_done(exec_ctx, arg, NULL);
     gpr_free(c);
@@ -186,8 +183,7 @@
   c->arg = arg;
   c->handshake_mgr = grpc_handshake_manager_create();
   GPR_ASSERT(httpcli_ssl_channel_security_connector_create(
-                 exec_ctx, pem_root_certs, pem_root_certs_size, host, &sc) ==
-             GRPC_SECURITY_OK);
+                 exec_ctx, pem_root_certs, host, &sc) == GRPC_SECURITY_OK);
   grpc_channel_security_connector_add_handshakers(exec_ctx, sc,
                                                   c->handshake_mgr);
   grpc_handshake_manager_do_handshake(
diff --git a/src/core/lib/iomgr/socket_mutator.h b/src/core/lib/iomgr/socket_mutator.h
index 2f5b6c2..28b1710 100644
--- a/src/core/lib/iomgr/socket_mutator.h
+++ b/src/core/lib/iomgr/socket_mutator.h
@@ -37,6 +37,8 @@
 #include <grpc/impl/codegen/grpc_types.h>
 #include <grpc/support/sync.h>
 
+#include <stdbool.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/src/core/lib/iomgr/udp_server.c b/src/core/lib/iomgr/udp_server.c
index ca283d0..af70746 100644
--- a/src/core/lib/iomgr/udp_server.c
+++ b/src/core/lib/iomgr/udp_server.c
@@ -92,6 +92,11 @@
   struct grpc_udp_listener *next;
 };
 
+struct shutdown_fd_args {
+  grpc_fd *fd;
+  gpr_mu *server_mu;
+};
+
 /* the overall server */
 struct grpc_udp_server {
   gpr_mu mu;
@@ -151,8 +156,13 @@
   return s;
 }
 
-static void shutdown_fd(grpc_exec_ctx *exec_ctx, void *fd, grpc_error *error) {
-  grpc_fd_shutdown(exec_ctx, (grpc_fd *)fd, GRPC_ERROR_REF(error));
+static void shutdown_fd(grpc_exec_ctx *exec_ctx, void *args,
+                        grpc_error *error) {
+  struct shutdown_fd_args *shutdown_args = (struct shutdown_fd_args *)args;
+  gpr_mu_lock(shutdown_args->server_mu);
+  grpc_fd_shutdown(exec_ctx, shutdown_args->fd, GRPC_ERROR_REF(error));
+  gpr_mu_unlock(shutdown_args->server_mu);
+  gpr_free(shutdown_args);
 }
 
 static void dummy_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
@@ -242,7 +252,10 @@
   if (s->active_ports) {
     for (sp = s->head; sp; sp = sp->next) {
       GPR_ASSERT(sp->orphan_cb);
-      grpc_closure_init(&sp->orphan_fd_closure, shutdown_fd, sp->emfd,
+      struct shutdown_fd_args *args = gpr_malloc(sizeof(*args));
+      args->fd = sp->emfd;
+      args->server_mu = &s->mu;
+      grpc_closure_init(&sp->orphan_fd_closure, shutdown_fd, args,
                         grpc_schedule_on_exec_ctx);
       sp->orphan_cb(exec_ctx, sp->emfd, &sp->orphan_fd_closure,
                     sp->server->user_data);
diff --git a/src/core/lib/security/credentials/ssl/ssl_credentials.c b/src/core/lib/security/credentials/ssl/ssl_credentials.c
index b63bb6b..7c35ebe 100644
--- a/src/core/lib/security/credentials/ssl/ssl_credentials.c
+++ b/src/core/lib/security/credentials/ssl/ssl_credentials.c
@@ -40,28 +40,24 @@
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-
-//
-// Utils
-//
-
-static void ssl_copy_key_material(const char *input, unsigned char **output,
-                                  size_t *output_size) {
-  *output_size = strlen(input);
-  *output = gpr_malloc(*output_size);
-  memcpy(*output, input, *output_size);
-}
+#include <grpc/support/string_util.h>
 
 //
 // SSL Channel Credentials.
 //
 
+static void ssl_config_pem_key_cert_pair_destroy(
+    tsi_ssl_pem_key_cert_pair *kp) {
+  if (kp == NULL) return;
+  gpr_free((void *)kp->private_key);
+  gpr_free((void *)kp->cert_chain);
+}
+
 static void ssl_destruct(grpc_exec_ctx *exec_ctx,
                          grpc_channel_credentials *creds) {
   grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds;
-  if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs);
-  if (c->config.pem_private_key != NULL) gpr_free(c->config.pem_private_key);
-  if (c->config.pem_cert_chain != NULL) gpr_free(c->config.pem_cert_chain);
+  gpr_free(c->config.pem_root_certs);
+  ssl_config_pem_key_cert_pair_destroy(&c->config.pem_key_cert_pair);
 }
 
 static grpc_security_status ssl_create_security_connector(
@@ -102,18 +98,15 @@
                              grpc_ssl_pem_key_cert_pair *pem_key_cert_pair,
                              grpc_ssl_config *config) {
   if (pem_root_certs != NULL) {
-    ssl_copy_key_material(pem_root_certs, &config->pem_root_certs,
-                          &config->pem_root_certs_size);
+    config->pem_root_certs = gpr_strdup(pem_root_certs);
   }
   if (pem_key_cert_pair != NULL) {
     GPR_ASSERT(pem_key_cert_pair->private_key != NULL);
     GPR_ASSERT(pem_key_cert_pair->cert_chain != NULL);
-    ssl_copy_key_material(pem_key_cert_pair->private_key,
-                          &config->pem_private_key,
-                          &config->pem_private_key_size);
-    ssl_copy_key_material(pem_key_cert_pair->cert_chain,
-                          &config->pem_cert_chain,
-                          &config->pem_cert_chain_size);
+    config->pem_key_cert_pair.cert_chain =
+        gpr_strdup(pem_key_cert_pair->cert_chain);
+    config->pem_key_cert_pair.private_key =
+        gpr_strdup(pem_key_cert_pair->private_key);
   }
 }
 
@@ -143,22 +136,10 @@
   grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)creds;
   size_t i;
   for (i = 0; i < c->config.num_key_cert_pairs; i++) {
-    if (c->config.pem_private_keys[i] != NULL) {
-      gpr_free(c->config.pem_private_keys[i]);
-    }
-    if (c->config.pem_cert_chains[i] != NULL) {
-      gpr_free(c->config.pem_cert_chains[i]);
-    }
+    ssl_config_pem_key_cert_pair_destroy(&c->config.pem_key_cert_pairs[i]);
   }
-  if (c->config.pem_private_keys != NULL) gpr_free(c->config.pem_private_keys);
-  if (c->config.pem_private_keys_sizes != NULL) {
-    gpr_free(c->config.pem_private_keys_sizes);
-  }
-  if (c->config.pem_cert_chains != NULL) gpr_free(c->config.pem_cert_chains);
-  if (c->config.pem_cert_chains_sizes != NULL) {
-    gpr_free(c->config.pem_cert_chains_sizes);
-  }
-  if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs);
+  gpr_free(c->config.pem_key_cert_pairs);
+  gpr_free(c->config.pem_root_certs);
 }
 
 static grpc_security_status ssl_server_create_security_connector(
@@ -179,30 +160,21 @@
   size_t i;
   config->client_certificate_request = client_certificate_request;
   if (pem_root_certs != NULL) {
-    ssl_copy_key_material(pem_root_certs, &config->pem_root_certs,
-                          &config->pem_root_certs_size);
+    config->pem_root_certs = gpr_strdup(pem_root_certs);
   }
   if (num_key_cert_pairs > 0) {
     GPR_ASSERT(pem_key_cert_pairs != NULL);
-    config->pem_private_keys =
-        gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *));
-    config->pem_cert_chains =
-        gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *));
-    config->pem_private_keys_sizes =
-        gpr_malloc(num_key_cert_pairs * sizeof(size_t));
-    config->pem_cert_chains_sizes =
-        gpr_malloc(num_key_cert_pairs * sizeof(size_t));
+    config->pem_key_cert_pairs =
+        gpr_zalloc(num_key_cert_pairs * sizeof(tsi_ssl_pem_key_cert_pair));
   }
   config->num_key_cert_pairs = num_key_cert_pairs;
   for (i = 0; i < num_key_cert_pairs; i++) {
     GPR_ASSERT(pem_key_cert_pairs[i].private_key != NULL);
     GPR_ASSERT(pem_key_cert_pairs[i].cert_chain != NULL);
-    ssl_copy_key_material(pem_key_cert_pairs[i].private_key,
-                          &config->pem_private_keys[i],
-                          &config->pem_private_keys_sizes[i]);
-    ssl_copy_key_material(pem_key_cert_pairs[i].cert_chain,
-                          &config->pem_cert_chains[i],
-                          &config->pem_cert_chains_sizes[i]);
+    config->pem_key_cert_pairs[i].cert_chain =
+        gpr_strdup(pem_key_cert_pairs[i].cert_chain);
+    config->pem_key_cert_pairs[i].private_key =
+        gpr_strdup(pem_key_cert_pairs[i].private_key);
   }
 }
 
diff --git a/src/core/lib/security/transport/client_auth_filter.c b/src/core/lib/security/transport/client_auth_filter.c
index f526653..1f0daf7 100644
--- a/src/core/lib/security/transport/client_auth_filter.c
+++ b/src/core/lib/security/transport/client_auth_filter.c
@@ -343,8 +343,16 @@
                                      grpc_channel_element_args *args) {
   grpc_security_connector *sc =
       grpc_security_connector_find_in_args(args->channel_args);
+  if (sc == NULL) {
+    return GRPC_ERROR_CREATE_FROM_STATIC_STRING(
+        "Security connector missing from client auth filter args");
+  }
   grpc_auth_context *auth_context =
       grpc_find_auth_context_in_args(args->channel_args);
+  if (auth_context == NULL) {
+    return GRPC_ERROR_CREATE_FROM_STATIC_STRING(
+        "Auth context missing from client auth filter args");
+  }
 
   /* grab pointers to our data from the channel element */
   channel_data *chand = elem->channel_data;
@@ -353,8 +361,6 @@
      handle the case that there's no 'next' filter to call on the up or down
      path */
   GPR_ASSERT(!args->is_last);
-  GPR_ASSERT(sc != NULL);
-  GPR_ASSERT(auth_context != NULL);
 
   /* initialize members */
   chand->security_connector =
diff --git a/src/core/lib/security/transport/security_connector.c b/src/core/lib/security/transport/security_connector.c
index b15196e..30431a4 100644
--- a/src/core/lib/security/transport/security_connector.c
+++ b/src/core/lib/security/transport/security_connector.c
@@ -78,9 +78,8 @@
 
 /* Defines the cipher suites that we accept by default. All these cipher suites
    are compliant with HTTP2. */
-#define GRPC_SSL_CIPHER_SUITES                                            \
-  "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-" \
-  "SHA384:ECDHE-RSA-AES256-GCM-SHA384"
+#define GRPC_SSL_CIPHER_SUITES \
+  "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384"
 
 static gpr_once cipher_suites_once = GPR_ONCE_INIT;
 static const char *cipher_suites = NULL;
@@ -695,6 +694,7 @@
 static grpc_security_connector_vtable ssl_server_vtable = {
     ssl_server_destroy, ssl_server_check_peer};
 
+/* returns a NULL terminated slice. */
 static grpc_slice compute_default_pem_root_certs_once(void) {
   grpc_slice result = grpc_empty_slice();
 
@@ -703,7 +703,7 @@
       gpr_getenv(GRPC_DEFAULT_SSL_ROOTS_FILE_PATH_ENV_VAR);
   if (default_root_certs_path != NULL) {
     GRPC_LOG_IF_ERROR("load_file",
-                      grpc_load_file(default_root_certs_path, 0, &result));
+                      grpc_load_file(default_root_certs_path, 1, &result));
     gpr_free(default_root_certs_path);
   }
 
@@ -714,15 +714,18 @@
     ovrd_res = ssl_roots_override_cb(&pem_root_certs);
     if (ovrd_res == GRPC_SSL_ROOTS_OVERRIDE_OK) {
       GPR_ASSERT(pem_root_certs != NULL);
-      result = grpc_slice_new(pem_root_certs, strlen(pem_root_certs), gpr_free);
+      result = grpc_slice_from_copied_buffer(
+          pem_root_certs,
+          strlen(pem_root_certs) + 1);  // NULL terminator.
     }
+    gpr_free(pem_root_certs);
   }
 
   /* Fall back to installed certs if needed. */
   if (GRPC_SLICE_IS_EMPTY(result) &&
       ovrd_res != GRPC_SSL_ROOTS_OVERRIDE_FAIL_PERMANENTLY) {
     GRPC_LOG_IF_ERROR("load_file",
-                      grpc_load_file(installed_roots_path, 0, &result));
+                      grpc_load_file(installed_roots_path, 1, &result));
   }
   return result;
 }
@@ -762,13 +765,14 @@
   }
 }
 
-size_t grpc_get_default_ssl_roots(const unsigned char **pem_root_certs) {
+const char *grpc_get_default_ssl_roots(void) {
   /* TODO(jboeuf@google.com): Maybe revisit the approach which consists in
      loading all the roots once for the lifetime of the process. */
   static gpr_once once = GPR_ONCE_INIT;
   gpr_once_init(&once, init_default_pem_root_certs);
-  *pem_root_certs = GRPC_SLICE_START_PTR(default_pem_root_certs);
-  return GRPC_SLICE_LENGTH(default_pem_root_certs);
+  return GRPC_SLICE_IS_EMPTY(default_pem_root_certs)
+             ? NULL
+             : (const char *)GRPC_SLICE_START_PTR(default_pem_root_certs);
 }
 
 grpc_security_status grpc_ssl_channel_security_connector_create(
@@ -776,22 +780,16 @@
     const grpc_ssl_config *config, const char *target_name,
     const char *overridden_target_name, grpc_channel_security_connector **sc) {
   size_t num_alpn_protocols = grpc_chttp2_num_alpn_versions();
-  const unsigned char **alpn_protocol_strings =
+  const char **alpn_protocol_strings =
       gpr_malloc(sizeof(const char *) * num_alpn_protocols);
-  unsigned char *alpn_protocol_string_lengths =
-      gpr_malloc(sizeof(unsigned char) * num_alpn_protocols);
   tsi_result result = TSI_OK;
   grpc_ssl_channel_security_connector *c;
   size_t i;
-  const unsigned char *pem_root_certs;
-  size_t pem_root_certs_size;
+  const char *pem_root_certs;
   char *port;
 
   for (i = 0; i < num_alpn_protocols; i++) {
-    alpn_protocol_strings[i] =
-        (const unsigned char *)grpc_chttp2_get_alpn_version_index(i);
-    alpn_protocol_string_lengths[i] =
-        (unsigned char)strlen(grpc_chttp2_get_alpn_version_index(i));
+    alpn_protocol_strings[i] = grpc_chttp2_get_alpn_version_index(i);
   }
 
   if (config == NULL || target_name == NULL) {
@@ -799,14 +797,13 @@
     goto error;
   }
   if (config->pem_root_certs == NULL) {
-    pem_root_certs_size = grpc_get_default_ssl_roots(&pem_root_certs);
-    if (pem_root_certs == NULL || pem_root_certs_size == 0) {
+    pem_root_certs = grpc_get_default_ssl_roots();
+    if (pem_root_certs == NULL) {
       gpr_log(GPR_ERROR, "Could not get default pem root certs.");
       goto error;
     }
   } else {
     pem_root_certs = config->pem_root_certs;
-    pem_root_certs_size = config->pem_root_certs_size;
   }
 
   c = gpr_zalloc(sizeof(grpc_ssl_channel_security_connector));
@@ -823,11 +820,12 @@
   if (overridden_target_name != NULL) {
     c->overridden_target_name = gpr_strdup(overridden_target_name);
   }
+
+  bool has_key_cert_pair = config->pem_key_cert_pair.private_key != NULL &&
+                           config->pem_key_cert_pair.cert_chain != NULL;
   result = tsi_create_ssl_client_handshaker_factory(
-      config->pem_private_key, config->pem_private_key_size,
-      config->pem_cert_chain, config->pem_cert_chain_size, pem_root_certs,
-      pem_root_certs_size, ssl_cipher_suites(), alpn_protocol_strings,
-      alpn_protocol_string_lengths, (uint16_t)num_alpn_protocols,
+      has_key_cert_pair ? &config->pem_key_cert_pair : NULL, pem_root_certs,
+      ssl_cipher_suites(), alpn_protocol_strings, (uint16_t)num_alpn_protocols,
       &c->handshaker_factory);
   if (result != TSI_OK) {
     gpr_log(GPR_ERROR, "Handshaker factory creation failed with %s.",
@@ -838,12 +836,10 @@
   }
   *sc = &c->base;
   gpr_free((void *)alpn_protocol_strings);
-  gpr_free(alpn_protocol_string_lengths);
   return GRPC_SECURITY_OK;
 
 error:
   gpr_free((void *)alpn_protocol_strings);
-  gpr_free(alpn_protocol_string_lengths);
   return GRPC_SECURITY_ERROR;
 }
 
@@ -851,19 +847,14 @@
     grpc_exec_ctx *exec_ctx, const grpc_ssl_server_config *config,
     grpc_server_security_connector **sc) {
   size_t num_alpn_protocols = grpc_chttp2_num_alpn_versions();
-  const unsigned char **alpn_protocol_strings =
+  const char **alpn_protocol_strings =
       gpr_malloc(sizeof(const char *) * num_alpn_protocols);
-  unsigned char *alpn_protocol_string_lengths =
-      gpr_malloc(sizeof(unsigned char) * num_alpn_protocols);
   tsi_result result = TSI_OK;
   grpc_ssl_server_security_connector *c;
   size_t i;
 
   for (i = 0; i < num_alpn_protocols; i++) {
-    alpn_protocol_strings[i] =
-        (const unsigned char *)grpc_chttp2_get_alpn_version_index(i);
-    alpn_protocol_string_lengths[i] =
-        (unsigned char)strlen(grpc_chttp2_get_alpn_version_index(i));
+    alpn_protocol_strings[i] = grpc_chttp2_get_alpn_version_index(i);
   }
 
   if (config == NULL || config->num_key_cert_pairs == 0) {
@@ -876,15 +867,11 @@
   c->base.base.url_scheme = GRPC_SSL_URL_SCHEME;
   c->base.base.vtable = &ssl_server_vtable;
   result = tsi_create_ssl_server_handshaker_factory_ex(
-      (const unsigned char **)config->pem_private_keys,
-      config->pem_private_keys_sizes,
-      (const unsigned char **)config->pem_cert_chains,
-      config->pem_cert_chains_sizes, config->num_key_cert_pairs,
-      config->pem_root_certs, config->pem_root_certs_size,
-      get_tsi_client_certificate_request_type(
-          config->client_certificate_request),
-      ssl_cipher_suites(), alpn_protocol_strings, alpn_protocol_string_lengths,
-      (uint16_t)num_alpn_protocols, &c->handshaker_factory);
+      config->pem_key_cert_pairs, config->num_key_cert_pairs,
+      config->pem_root_certs, get_tsi_client_certificate_request_type(
+                                  config->client_certificate_request),
+      ssl_cipher_suites(), alpn_protocol_strings, (uint16_t)num_alpn_protocols,
+      &c->handshaker_factory);
   if (result != TSI_OK) {
     gpr_log(GPR_ERROR, "Handshaker factory creation failed with %s.",
             tsi_result_to_string(result));
@@ -895,11 +882,9 @@
   c->base.add_handshakers = ssl_server_add_handshakers;
   *sc = &c->base;
   gpr_free((void *)alpn_protocol_strings);
-  gpr_free(alpn_protocol_string_lengths);
   return GRPC_SECURITY_OK;
 
 error:
   gpr_free((void *)alpn_protocol_strings);
-  gpr_free(alpn_protocol_string_lengths);
   return GRPC_SECURITY_ERROR;
 }
diff --git a/src/core/lib/security/transport/security_connector.h b/src/core/lib/security/transport/security_connector.h
index cf56cb3..d74f673 100644
--- a/src/core/lib/security/transport/security_connector.h
+++ b/src/core/lib/security/transport/security_connector.h
@@ -34,11 +34,14 @@
 #ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURITY_CONNECTOR_H
 #define GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURITY_CONNECTOR_H
 
+#include <stdbool.h>
+
 #include <grpc/grpc_security.h>
 
 #include "src/core/lib/channel/handshaker.h"
 #include "src/core/lib/iomgr/endpoint.h"
 #include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/tsi/ssl_transport_security.h"
 #include "src/core/tsi/transport_security_interface.h"
 
 /* --- status enum. --- */
@@ -184,13 +187,10 @@
     void);
 
 /* Config for ssl clients. */
+
 typedef struct {
-  unsigned char *pem_private_key;
-  size_t pem_private_key_size;
-  unsigned char *pem_cert_chain;
-  size_t pem_cert_chain_size;
-  unsigned char *pem_root_certs;
-  size_t pem_root_certs_size;
+  tsi_ssl_pem_key_cert_pair pem_key_cert_pair;
+  char *pem_root_certs;
 } grpc_ssl_config;
 
 /* Creates an SSL channel_security_connector.
@@ -211,21 +211,17 @@
     const grpc_ssl_config *config, const char *target_name,
     const char *overridden_target_name, grpc_channel_security_connector **sc);
 
-/* Gets the default ssl roots. */
-size_t grpc_get_default_ssl_roots(const unsigned char **pem_root_certs);
+/* Gets the default ssl roots. Returns NULL if not found. */
+const char *grpc_get_default_ssl_roots(void);
 
 /* Exposed for TESTING ONLY!. */
 grpc_slice grpc_get_default_ssl_roots_for_testing(void);
 
 /* Config for ssl servers. */
 typedef struct {
-  unsigned char **pem_private_keys;
-  size_t *pem_private_keys_sizes;
-  unsigned char **pem_cert_chains;
-  size_t *pem_cert_chains_sizes;
+  tsi_ssl_pem_key_cert_pair *pem_key_cert_pairs;
   size_t num_key_cert_pairs;
-  unsigned char *pem_root_certs;
-  size_t pem_root_certs_size;
+  char *pem_root_certs;
   grpc_ssl_client_certificate_request_type client_certificate_request;
 } grpc_ssl_server_config;
 
diff --git a/src/core/lib/slice/slice_hash_table.c b/src/core/lib/slice/slice_hash_table.c
index 219567f..444f22a 100644
--- a/src/core/lib/slice/slice_hash_table.c
+++ b/src/core/lib/slice/slice_hash_table.c
@@ -42,56 +42,47 @@
 
 struct grpc_slice_hash_table {
   gpr_refcount refs;
+  void (*destroy_value)(grpc_exec_ctx* exec_ctx, void* value);
   size_t size;
+  size_t max_num_probes;
   grpc_slice_hash_table_entry* entries;
 };
 
 static bool is_empty(grpc_slice_hash_table_entry* entry) {
-  return entry->vtable == NULL;
+  return entry->value == NULL;
 }
 
-// Helper function for insert and get operations that performs quadratic
-// probing (https://en.wikipedia.org/wiki/Quadratic_probing).
-static size_t grpc_slice_hash_table_find_index(
-    const grpc_slice_hash_table* table, const grpc_slice key, bool find_empty) {
-  size_t hash = grpc_slice_hash(key);
-  for (size_t i = 0; i < table->size; ++i) {
-    const size_t idx = (hash + i * i) % table->size;
+static void grpc_slice_hash_table_add(grpc_slice_hash_table* table,
+                                      grpc_slice key, void* value) {
+  GPR_ASSERT(value != NULL);
+  const size_t hash = grpc_slice_hash(key);
+  for (size_t offset = 0; offset < table->size; ++offset) {
+    const size_t idx = (hash + offset) % table->size;
     if (is_empty(&table->entries[idx])) {
-      return find_empty ? idx : table->size;
-    }
-    if (grpc_slice_eq(table->entries[idx].key, key)) {
-      return idx;
+      table->entries[idx].key = key;
+      table->entries[idx].value = value;
+      // Keep track of the maximum number of probes needed, since this
+      // provides an upper bound for lookups.
+      if (offset > table->max_num_probes) table->max_num_probes = offset;
+      return;
     }
   }
-  return table->size;  // Not found.
-}
-
-static void grpc_slice_hash_table_add(
-    grpc_slice_hash_table* table, grpc_slice key, void* value,
-    const grpc_slice_hash_table_vtable* vtable) {
-  GPR_ASSERT(value != NULL);
-  const size_t idx =
-      grpc_slice_hash_table_find_index(table, key, true /* find_empty */);
-  GPR_ASSERT(idx != table->size);  // Table should never be full.
-  grpc_slice_hash_table_entry* entry = &table->entries[idx];
-  entry->key = grpc_slice_ref_internal(key);
-  entry->value = vtable->copy_value(value);
-  entry->vtable = vtable;
+  GPR_ASSERT(false);  // Table should never be full.
 }
 
 grpc_slice_hash_table* grpc_slice_hash_table_create(
-    size_t num_entries, grpc_slice_hash_table_entry* entries) {
+    size_t num_entries, grpc_slice_hash_table_entry* entries,
+    void (*destroy_value)(grpc_exec_ctx* exec_ctx, void* value)) {
   grpc_slice_hash_table* table = gpr_zalloc(sizeof(*table));
   gpr_ref_init(&table->refs, 1);
-  // Quadratic probing gets best performance when the table is no more
-  // than half full.
+  table->destroy_value = destroy_value;
+  // Keep load factor low to improve performance of lookups.
   table->size = num_entries * 2;
   const size_t entry_size = sizeof(grpc_slice_hash_table_entry) * table->size;
   table->entries = gpr_zalloc(entry_size);
   for (size_t i = 0; i < num_entries; ++i) {
     grpc_slice_hash_table_entry* entry = &entries[i];
-    grpc_slice_hash_table_add(table, entry->key, entry->value, entry->vtable);
+    grpc_slice_hash_table_add(table, entry->key, entry->value);
   }
   return table;
 }
@@ -108,7 +99,7 @@
       grpc_slice_hash_table_entry* entry = &table->entries[i];
       if (!is_empty(entry)) {
         grpc_slice_unref_internal(exec_ctx, entry->key);
-        entry->vtable->destroy_value(exec_ctx, entry->value);
+        table->destroy_value(exec_ctx, entry->value);
       }
     }
     gpr_free(table->entries);
@@ -118,8 +109,15 @@
 
 void* grpc_slice_hash_table_get(const grpc_slice_hash_table* table,
                                 const grpc_slice key) {
-  const size_t idx =
-      grpc_slice_hash_table_find_index(table, key, false /* find_empty */);
-  if (idx == table->size) return NULL;  // Not found.
-  return table->entries[idx].value;
+  const size_t hash = grpc_slice_hash(key);
+  // We cap the number of probes at the max number recorded when
+  // populating the table.
+  for (size_t offset = 0; offset <= table->max_num_probes; ++offset) {
+    const size_t idx = (hash + offset) % table->size;
+    if (is_empty(&table->entries[idx])) break;
+    if (grpc_slice_eq(table->entries[idx].key, key)) {
+      return table->entries[idx].value;
+    }
+  }
+  return NULL;  // Not found.
 }
diff --git a/src/core/lib/slice/slice_hash_table.h b/src/core/lib/slice/slice_hash_table.h
index d0c2712..1e61c5e 100644
--- a/src/core/lib/slice/slice_hash_table.h
+++ b/src/core/lib/slice/slice_hash_table.h
@@ -37,33 +37,28 @@
 /** Hash table implementation.
  *
  * This implementation uses open addressing
- * (https://en.wikipedia.org/wiki/Open_addressing) with quadratic
- * probing (https://en.wikipedia.org/wiki/Quadratic_probing).
+ * (https://en.wikipedia.org/wiki/Open_addressing) with linear
+ * probing (https://en.wikipedia.org/wiki/Linear_probing).
  *
  * The keys are \a grpc_slice objects.  The values are arbitrary pointers
- * with a common vtable.
+ * with a common destroy function.
  *
  * Hash tables are intentionally immutable, to avoid the need for locking.
  */
 
 typedef struct grpc_slice_hash_table grpc_slice_hash_table;
 
-typedef struct grpc_slice_hash_table_vtable {
-  void (*destroy_value)(grpc_exec_ctx *exec_ctx, void *value);
-  void *(*copy_value)(void *value);
-} grpc_slice_hash_table_vtable;
-
 typedef struct grpc_slice_hash_table_entry {
   grpc_slice key;
   void *value; /* Must not be NULL. */
-  const grpc_slice_hash_table_vtable *vtable;
 } grpc_slice_hash_table_entry;
 
 /** Creates a new hash table of containing \a entries, which is an array
-    of length \a num_entries.
-    Creates its own copy of all keys and values from \a entries. */
+    of length \a num_entries.  Takes ownership of all keys and values in
+    \a entries.  Values will be cleaned up via \a destroy_value(). */
 grpc_slice_hash_table *grpc_slice_hash_table_create(
-    size_t num_entries, grpc_slice_hash_table_entry *entries);
+    size_t num_entries, grpc_slice_hash_table_entry *entries,
+    void (*destroy_value)(grpc_exec_ctx *exec_ctx, void *value));
 
 grpc_slice_hash_table *grpc_slice_hash_table_ref(grpc_slice_hash_table *table);
 void grpc_slice_hash_table_unref(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/lib/support/atomic.h b/src/core/lib/support/atomic.h
new file mode 100644
index 0000000..2226189
--- /dev/null
+++ b/src/core/lib/support/atomic.h
@@ -0,0 +1,45 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_SUPPORT_ATOMIC_H
+#define GRPC_CORE_LIB_SUPPORT_ATOMIC_H
+
+#include <grpc/support/port_platform.h>
+
+#ifdef GPR_HAS_CXX11_ATOMIC
+#include "src/core/lib/support/atomic_with_std.h"
+#else
+#include "src/core/lib/support/atomic_with_atm.h"
+#endif
+
+#endif /* GRPC_CORE_LIB_SUPPORT_ATOMIC_H */
diff --git a/src/core/lib/support/atomic_with_atm.h b/src/core/lib/support/atomic_with_atm.h
new file mode 100644
index 0000000..55727f1
--- /dev/null
+++ b/src/core/lib/support/atomic_with_atm.h
@@ -0,0 +1,70 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_ATM_H
+#define GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_ATM_H
+
+#include <grpc/support/atm.h>
+
+namespace grpc_core {
+
+enum MemoryOrderRelaxed { memory_order_relaxed };
+
+template <class T>
+class atomic;
+
+template <>
+class atomic<bool> {
+ public:
+  atomic() { gpr_atm_no_barrier_store(&x_, static_cast<gpr_atm>(false)); }
+  explicit atomic(bool x) {
+    gpr_atm_no_barrier_store(&x_, static_cast<gpr_atm>(x));
+  }
+
+  bool compare_exchange_strong(bool& expected, bool update, MemoryOrderRelaxed,
+                               MemoryOrderRelaxed) {
+    if (!gpr_atm_no_barrier_cas(&x_, static_cast<gpr_atm>(expected),
+                                static_cast<gpr_atm>(update))) {
+      expected = gpr_atm_no_barrier_load(&x_) != 0;
+      return false;
+    }
+    return true;
+  }
+
+ private:
+  gpr_atm x_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_ATM_H */
diff --git a/src/core/lib/support/atomic_with_std.h b/src/core/lib/support/atomic_with_std.h
new file mode 100644
index 0000000..7e9c19e
--- /dev/null
+++ b/src/core/lib/support/atomic_with_std.h
@@ -0,0 +1,48 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_STD_H
+#define GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_STD_H
+
+#include <atomic>
+
+namespace grpc_core {
+
+template <class T>
+using atomic = std::atomic<T>;
+
+typedef std::memory_order memory_order;
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_LIB_SUPPORT_ATOMIC_WITH_STD_H */
diff --git a/src/core/lib/support/avl.c b/src/core/lib/support/avl.c
index acf8fd5..ffa10c1 100644
--- a/src/core/lib/support/avl.c
+++ b/src/core/lib/support/avl.c
@@ -205,8 +205,8 @@
   }
 }
 
-static gpr_avl_node *add(const gpr_avl_vtable *vtable, gpr_avl_node *node,
-                         void *key, void *value) {
+static gpr_avl_node *add_key(const gpr_avl_vtable *vtable, gpr_avl_node *node,
+                             void *key, void *value) {
   long cmp;
   if (node == NULL) {
     return new_node(key, value, NULL, NULL);
@@ -217,17 +217,17 @@
   } else if (cmp > 0) {
     return rebalance(
         vtable, vtable->copy_key(node->key), vtable->copy_value(node->value),
-        add(vtable, node->left, key, value), ref_node(node->right));
+        add_key(vtable, node->left, key, value), ref_node(node->right));
   } else {
     return rebalance(vtable, vtable->copy_key(node->key),
                      vtable->copy_value(node->value), ref_node(node->left),
-                     add(vtable, node->right, key, value));
+                     add_key(vtable, node->right, key, value));
   }
 }
 
 gpr_avl gpr_avl_add(gpr_avl avl, void *key, void *value) {
   gpr_avl_node *old_root = avl.root;
-  avl.root = add(avl.vtable, avl.root, key, value);
+  avl.root = add_key(avl.vtable, avl.root, key, value);
   assert_invariants(avl.root);
   unref_node(avl.vtable, old_root);
   return avl;
@@ -247,8 +247,8 @@
   return node;
 }
 
-static gpr_avl_node *remove(const gpr_avl_vtable *vtable, gpr_avl_node *node,
-                            void *key) {
+static gpr_avl_node *remove_key(const gpr_avl_vtable *vtable,
+                                gpr_avl_node *node, void *key) {
   long cmp;
   if (node == NULL) {
     return NULL;
@@ -263,27 +263,27 @@
       gpr_avl_node *h = in_order_head(node->right);
       return rebalance(vtable, vtable->copy_key(h->key),
                        vtable->copy_value(h->value), ref_node(node->left),
-                       remove(vtable, node->right, h->key));
+                       remove_key(vtable, node->right, h->key));
     } else {
       gpr_avl_node *h = in_order_tail(node->left);
       return rebalance(
           vtable, vtable->copy_key(h->key), vtable->copy_value(h->value),
-          remove(vtable, node->left, h->key), ref_node(node->right));
+          remove_key(vtable, node->left, h->key), ref_node(node->right));
     }
   } else if (cmp > 0) {
-    return rebalance(vtable, vtable->copy_key(node->key),
-                     vtable->copy_value(node->value),
-                     remove(vtable, node->left, key), ref_node(node->right));
+    return rebalance(
+        vtable, vtable->copy_key(node->key), vtable->copy_value(node->value),
+        remove_key(vtable, node->left, key), ref_node(node->right));
   } else {
     return rebalance(vtable, vtable->copy_key(node->key),
                      vtable->copy_value(node->value), ref_node(node->left),
-                     remove(vtable, node->right, key));
+                     remove_key(vtable, node->right, key));
   }
 }
 
 gpr_avl gpr_avl_remove(gpr_avl avl, void *key) {
   gpr_avl_node *old_root = avl.root;
-  avl.root = remove(avl.vtable, avl.root, key);
+  avl.root = remove_key(avl.vtable, avl.root, key);
   assert_invariants(avl.root);
   unref_node(avl.vtable, old_root);
   return avl;
diff --git a/src/core/lib/support/memory.h b/src/core/lib/support/memory.h
new file mode 100644
index 0000000..6eff94e
--- /dev/null
+++ b/src/core/lib/support/memory.h
@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_SUPPORT_MEMORY_H
+#define GRPC_CORE_LIB_SUPPORT_MEMORY_H
+
+#include <grpc/support/alloc.h>
+
+#include <memory>
+#include <utility>
+
+namespace grpc_core {
+
+// Alternative to new, since we cannot use it (for fear of libstdc++)
+template <typename T, typename... Args>
+inline T* New(Args&&... args) {
+  void* p = gpr_malloc(sizeof(T));
+  return new (p) T(std::forward<Args>(args)...);
+}
+
+// Alternative to delete, since we cannot use it (for fear of libstdc++)
+template <typename T>
+inline void Delete(T* p) {
+  p->~T();
+  gpr_free(p);
+}
+
+template <typename T>
+class DefaultDelete {
+ public:
+  void operator()(T* p) { Delete(p); }
+};
+
+template <typename T, typename Deleter = DefaultDelete<T>>
+using UniquePtr = std::unique_ptr<T, Deleter>;
+
+template <typename T, typename... Args>
+inline UniquePtr<T> MakeUnique(Args&&... args) {
+  return UniquePtr<T>(New<T>(std::forward<Args>(args)...));
+}
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_LIB_SUPPORT_MEMORY_H */
diff --git a/src/core/lib/support/stack_lockfree.c b/src/core/lib/support/stack_lockfree.c
index c481a3e..dfbd3fb 100644
--- a/src/core/lib/support/stack_lockfree.c
+++ b/src/core/lib/support/stack_lockfree.c
@@ -76,13 +76,13 @@
 
 gpr_stack_lockfree *gpr_stack_lockfree_create(size_t entries) {
   gpr_stack_lockfree *stack;
-  stack = gpr_malloc(sizeof(*stack));
+  stack = (gpr_stack_lockfree *)gpr_malloc(sizeof(*stack));
   /* Since we only allocate 16 bits to represent an entry number,
    * make sure that we are within the desired range */
   /* Reserve the highest entry number as a dummy */
   GPR_ASSERT(entries < INVALID_ENTRY_INDEX);
-  stack->entries = gpr_malloc_aligned(entries * sizeof(stack->entries[0]),
-                                      ENTRY_ALIGNMENT_BITS);
+  stack->entries = (lockfree_node *)gpr_malloc_aligned(
+      entries * sizeof(stack->entries[0]), ENTRY_ALIGNMENT_BITS);
   /* Clear out all entries */
   memset(stack->entries, 0, entries * sizeof(stack->entries[0]));
   memset(&stack->head, 0, sizeof(stack->head));
diff --git a/src/core/lib/support/time_posix.c b/src/core/lib/support/time_posix.c
index a69c501..9bfec77 100644
--- a/src/core/lib/support/time_posix.c
+++ b/src/core/lib/support/time_posix.c
@@ -42,6 +42,7 @@
 #ifdef __linux__
 #include <sys/syscall.h>
 #endif
+#include <grpc/support/atm.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include "src/core/lib/support/block_annotate.h"
@@ -144,7 +145,14 @@
 
 gpr_timespec (*gpr_now_impl)(gpr_clock_type clock_type) = now_impl;
 
+#ifdef GPR_LOW_LEVEL_COUNTERS
+gpr_atm gpr_now_call_count;
+#endif
+
 gpr_timespec gpr_now(gpr_clock_type clock_type) {
+#ifdef GPR_LOW_LEVEL_COUNTERS
+  __atomic_fetch_add(&gpr_now_call_count, 1, __ATOMIC_RELAXED);
+#endif
   return gpr_now_impl(clock_type);
 }
 
diff --git a/src/core/lib/support/tmpfile_posix.c b/src/core/lib/support/tmpfile_posix.c
index 0cd4bb6..5771c15 100644
--- a/src/core/lib/support/tmpfile_posix.c
+++ b/src/core/lib/support/tmpfile_posix.c
@@ -50,34 +50,34 @@
 
 FILE *gpr_tmpfile(const char *prefix, char **tmp_filename) {
   FILE *result = NULL;
-  char *template;
+  char *filename_template;
   int fd;
 
   if (tmp_filename != NULL) *tmp_filename = NULL;
 
-  gpr_asprintf(&template, "/tmp/%s_XXXXXX", prefix);
-  GPR_ASSERT(template != NULL);
+  gpr_asprintf(&filename_template, "/tmp/%s_XXXXXX", prefix);
+  GPR_ASSERT(filename_template != NULL);
 
-  fd = mkstemp(template);
+  fd = mkstemp(filename_template);
   if (fd == -1) {
-    gpr_log(GPR_ERROR, "mkstemp failed for template %s with error %s.",
-            template, strerror(errno));
+    gpr_log(GPR_ERROR, "mkstemp failed for filename_template %s with error %s.",
+            filename_template, strerror(errno));
     goto end;
   }
   result = fdopen(fd, "w+");
   if (result == NULL) {
     gpr_log(GPR_ERROR, "Could not open file %s from fd %d (error = %s).",
-            template, fd, strerror(errno));
-    unlink(template);
+            filename_template, fd, strerror(errno));
+    unlink(filename_template);
     close(fd);
     goto end;
   }
 
 end:
   if (result != NULL && tmp_filename != NULL) {
-    *tmp_filename = template;
+    *tmp_filename = filename_template;
   } else {
-    gpr_free(template);
+    gpr_free(filename_template);
   }
   return result;
 }
diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index 9aa457d..7525806 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -245,6 +245,7 @@
 };
 
 int grpc_call_error_trace = 0;
+int grpc_compression_trace = 0;
 
 #define CALL_STACK_FROM_CALL(call) ((grpc_call_stack *)((call) + 1))
 #define CALL_FROM_CALL_STACK(call_stack) (((grpc_call *)(call_stack)) - 1)
diff --git a/src/core/lib/surface/completion_queue.c b/src/core/lib/surface/completion_queue.c
index 35e9f7e..eae3f10 100644
--- a/src/core/lib/surface/completion_queue.c
+++ b/src/core/lib/surface/completion_queue.c
@@ -60,13 +60,154 @@
   void *tag;
 } plucker;
 
+typedef struct {
+  bool can_get_pollset;
+  bool can_listen;
+  size_t (*size)(void);
+  void (*init)(grpc_pollset *pollset, gpr_mu **mu);
+  grpc_error *(*kick)(grpc_pollset *pollset,
+                      grpc_pollset_worker *specific_worker);
+  grpc_error *(*work)(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
+                      grpc_pollset_worker **worker, gpr_timespec now,
+                      gpr_timespec deadline);
+  void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
+                   grpc_closure *closure);
+  void (*destroy)(grpc_pollset *pollset);
+} cq_poller_vtable;
+
+typedef struct non_polling_worker {
+  gpr_cv cv;
+  bool kicked;
+  struct non_polling_worker *next;
+  struct non_polling_worker *prev;
+} non_polling_worker;
+
+typedef struct {
+  gpr_mu mu;
+  non_polling_worker *root;
+  grpc_closure *shutdown;
+} non_polling_poller;
+
+static size_t non_polling_poller_size(void) {
+  return sizeof(non_polling_poller);
+}
+
+static void non_polling_poller_init(grpc_pollset *pollset, gpr_mu **mu) {
+  non_polling_poller *npp = (non_polling_poller *)pollset;
+  gpr_mu_init(&npp->mu);
+  *mu = &npp->mu;
+}
+
+static void non_polling_poller_destroy(grpc_pollset *pollset) {
+  non_polling_poller *npp = (non_polling_poller *)pollset;
+  gpr_mu_destroy(&npp->mu);
+}
+
+static grpc_error *non_polling_poller_work(grpc_exec_ctx *exec_ctx,
+                                           grpc_pollset *pollset,
+                                           grpc_pollset_worker **worker,
+                                           gpr_timespec now,
+                                           gpr_timespec deadline) {
+  non_polling_poller *npp = (non_polling_poller *)pollset;
+  if (npp->shutdown) return GRPC_ERROR_NONE;
+  non_polling_worker w;
+  gpr_cv_init(&w.cv);
+  if (worker != NULL) *worker = (grpc_pollset_worker *)&w;
+  if (npp->root == NULL) {
+    npp->root = w.next = w.prev = &w;
+  } else {
+    w.next = npp->root;
+    w.prev = w.next->prev;
+    w.next->prev = w.prev->next = &w;
+  }
+  w.kicked = false;
+  while (!npp->shutdown && !w.kicked && !gpr_cv_wait(&w.cv, &npp->mu, deadline))
+    ;
+  if (&w == npp->root) {
+    npp->root = w.next;
+    if (&w == npp->root) {
+      if (npp->shutdown) {
+        grpc_closure_sched(exec_ctx, npp->shutdown, GRPC_ERROR_NONE);
+      }
+      npp->root = NULL;
+    }
+  }
+  w.next->prev = w.prev;
+  w.prev->next = w.next;
+  gpr_cv_destroy(&w.cv);
+  if (worker != NULL) *worker = NULL;
+  return GRPC_ERROR_NONE;
+}
+
+static grpc_error *non_polling_poller_kick(
+    grpc_pollset *pollset, grpc_pollset_worker *specific_worker) {
+  non_polling_poller *p = (non_polling_poller *)pollset;
+  if (specific_worker == NULL) specific_worker = (grpc_pollset_worker *)p->root;
+  if (specific_worker != NULL) {
+    non_polling_worker *w = (non_polling_worker *)specific_worker;
+    if (!w->kicked) {
+      w->kicked = true;
+      gpr_cv_signal(&w->cv);
+    }
+  }
+  return GRPC_ERROR_NONE;
+}
+
+static void non_polling_poller_shutdown(grpc_exec_ctx *exec_ctx,
+                                        grpc_pollset *pollset,
+                                        grpc_closure *closure) {
+  non_polling_poller *p = (non_polling_poller *)pollset;
+  GPR_ASSERT(closure != NULL);
+  p->shutdown = closure;
+  if (p->root == NULL) {
+    grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE);
+  } else {
+    non_polling_worker *w = p->root;
+    do {
+      gpr_cv_signal(&w->cv);
+      w = w->next;
+    } while (w != p->root);
+  }
+}
+
+static const cq_poller_vtable g_poller_vtable_by_poller_type[] = {
+    /* GRPC_CQ_DEFAULT_POLLING */
+    {.can_get_pollset = true,
+     .can_listen = true,
+     .size = grpc_pollset_size,
+     .init = grpc_pollset_init,
+     .kick = grpc_pollset_kick,
+     .work = grpc_pollset_work,
+     .shutdown = grpc_pollset_shutdown,
+     .destroy = grpc_pollset_destroy},
+    /* GRPC_CQ_NON_LISTENING */
+    {.can_get_pollset = true,
+     .can_listen = false,
+     .size = grpc_pollset_size,
+     .init = grpc_pollset_init,
+     .kick = grpc_pollset_kick,
+     .work = grpc_pollset_work,
+     .shutdown = grpc_pollset_shutdown,
+     .destroy = grpc_pollset_destroy},
+    /* GRPC_CQ_NON_POLLING */
+    {.can_get_pollset = false,
+     .can_listen = false,
+     .size = non_polling_poller_size,
+     .init = non_polling_poller_init,
+     .kick = non_polling_poller_kick,
+     .work = non_polling_poller_work,
+     .shutdown = non_polling_poller_shutdown,
+     .destroy = non_polling_poller_destroy},
+};
+
 /* Completion queue structure */
 struct grpc_completion_queue {
   /** owned by pollset */
   gpr_mu *mu;
 
   grpc_cq_completion_type completion_type;
-  grpc_cq_polling_type polling_type;
+
+  const cq_poller_vtable *poller_vtable;
 
   /** completed events */
   grpc_cq_completion completed_head;
@@ -127,15 +268,18 @@
       "polling_type=%d)",
       2, (completion_type, polling_type));
 
-  cc = gpr_zalloc(sizeof(grpc_completion_queue) + grpc_pollset_size());
-  grpc_pollset_init(POLLSET_FROM_CQ(cc), &cc->mu);
+  const cq_poller_vtable *poller_vtable =
+      &g_poller_vtable_by_poller_type[polling_type];
+
+  cc = gpr_zalloc(sizeof(grpc_completion_queue) + poller_vtable->size());
+  poller_vtable->init(POLLSET_FROM_CQ(cc), &cc->mu);
 #ifndef NDEBUG
   cc->outstanding_tags = NULL;
   cc->outstanding_tag_capacity = 0;
 #endif
 
   cc->completion_type = completion_type;
-  cc->polling_type = polling_type;
+  cc->poller_vtable = poller_vtable;
 
   /* Initial ref is dropped by grpc_completion_queue_shutdown */
   gpr_ref_init(&cc->pending_events, 1);
@@ -164,10 +308,6 @@
   return cc->completion_type;
 }
 
-grpc_cq_polling_type grpc_get_cq_polling_type(grpc_completion_queue *cc) {
-  return cc->polling_type;
-}
-
 #ifdef GRPC_CQ_REF_COUNT_DEBUG
 void grpc_cq_internal_ref(grpc_completion_queue *cc, const char *reason,
                           const char *file, int line) {
@@ -195,7 +335,7 @@
 #endif
   if (gpr_unref(&cc->owning_refs)) {
     GPR_ASSERT(cc->completed_head.next == (uintptr_t)&cc->completed_head);
-    grpc_pollset_destroy(POLLSET_FROM_CQ(cc));
+    cc->poller_vtable->destroy(POLLSET_FROM_CQ(cc));
 #ifndef NDEBUG
     gpr_free(cc->outstanding_tags);
 #endif
@@ -280,7 +420,7 @@
       }
     }
     grpc_error *kick_error =
-        grpc_pollset_kick(POLLSET_FROM_CQ(cc), pluck_worker);
+        cc->poller_vtable->kick(POLLSET_FROM_CQ(cc), pluck_worker);
     gpr_mu_unlock(cc->mu);
     if (kick_error != GRPC_ERROR_NONE) {
       const char *msg = grpc_error_string(kick_error);
@@ -295,8 +435,8 @@
     GPR_ASSERT(!cc->shutdown);
     GPR_ASSERT(cc->shutdown_called);
     cc->shutdown = 1;
-    grpc_pollset_shutdown(exec_ctx, POLLSET_FROM_CQ(cc),
-                          &cc->pollset_shutdown_done);
+    cc->poller_vtable->shutdown(exec_ctx, POLLSET_FROM_CQ(cc),
+                                &cc->pollset_shutdown_done);
     gpr_mu_unlock(cc->mu);
   }
 
@@ -452,8 +592,8 @@
       gpr_mu_lock(cc->mu);
       continue;
     } else {
-      grpc_error *err = grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc), NULL,
-                                          now, iteration_deadline);
+      grpc_error *err = cc->poller_vtable->work(&exec_ctx, POLLSET_FROM_CQ(cc),
+                                                NULL, now, iteration_deadline);
       if (err != GRPC_ERROR_NONE) {
         gpr_mu_unlock(cc->mu);
         const char *msg = grpc_error_string(err);
@@ -644,8 +784,8 @@
       grpc_exec_ctx_flush(&exec_ctx);
       gpr_mu_lock(cc->mu);
     } else {
-      grpc_error *err = grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc),
-                                          &worker, now, iteration_deadline);
+      grpc_error *err = cc->poller_vtable->work(
+          &exec_ctx, POLLSET_FROM_CQ(cc), &worker, now, iteration_deadline);
       if (err != GRPC_ERROR_NONE) {
         del_plucker(cc, tag, &worker);
         gpr_mu_unlock(cc->mu);
@@ -689,8 +829,8 @@
   if (gpr_unref(&cc->pending_events)) {
     GPR_ASSERT(!cc->shutdown);
     cc->shutdown = 1;
-    grpc_pollset_shutdown(&exec_ctx, POLLSET_FROM_CQ(cc),
-                          &cc->pollset_shutdown_done);
+    cc->poller_vtable->shutdown(&exec_ctx, POLLSET_FROM_CQ(cc),
+                                &cc->pollset_shutdown_done);
   }
   gpr_mu_unlock(cc->mu);
   grpc_exec_ctx_finish(&exec_ctx);
@@ -706,7 +846,7 @@
 }
 
 grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc) {
-  return POLLSET_FROM_CQ(cc);
+  return cc->poller_vtable->can_get_pollset ? POLLSET_FROM_CQ(cc) : NULL;
 }
 
 grpc_completion_queue *grpc_cq_from_pollset(grpc_pollset *ps) {
@@ -727,4 +867,10 @@
 
 void grpc_cq_mark_server_cq(grpc_completion_queue *cc) { cc->is_server_cq = 1; }
 
-int grpc_cq_is_server_cq(grpc_completion_queue *cc) { return cc->is_server_cq; }
+bool grpc_cq_is_server_cq(grpc_completion_queue *cc) {
+  return cc->is_server_cq;
+}
+
+bool grpc_cq_can_listen(grpc_completion_queue *cc) {
+  return cc->poller_vtable->can_listen;
+}
diff --git a/src/core/lib/surface/completion_queue.h b/src/core/lib/surface/completion_queue.h
index 1ff3d64..a932087 100644
--- a/src/core/lib/surface/completion_queue.h
+++ b/src/core/lib/surface/completion_queue.h
@@ -94,13 +94,11 @@
 grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc);
 grpc_completion_queue *grpc_cq_from_pollset(grpc_pollset *ps);
 
-void grpc_cq_mark_non_listening_server_cq(grpc_completion_queue *cc);
-bool grpc_cq_is_non_listening_server_cq(grpc_completion_queue *cc);
 void grpc_cq_mark_server_cq(grpc_completion_queue *cc);
-int grpc_cq_is_server_cq(grpc_completion_queue *cc);
+bool grpc_cq_is_server_cq(grpc_completion_queue *cc);
+bool grpc_cq_can_listen(grpc_completion_queue *cc);
 
 grpc_cq_completion_type grpc_get_cq_completion_type(grpc_completion_queue *cc);
-grpc_cq_polling_type grpc_get_cq_polling_type(grpc_completion_queue *cc);
 
 grpc_completion_queue *grpc_completion_queue_create_internal(
     grpc_cq_completion_type completion_type, grpc_cq_polling_type polling_type);
diff --git a/src/core/lib/surface/lame_client.c b/src/core/lib/surface/lame_client.cc
similarity index 85%
rename from src/core/lib/surface/lame_client.c
rename to src/core/lib/surface/lame_client.cc
index 82428c4..88f4eaa 100644
--- a/src/core/lib/surface/lame_client.c
+++ b/src/core/lib/surface/lame_client.cc
@@ -31,39 +31,50 @@
  *
  */
 
-#include "src/core/lib/surface/lame_client.h"
-
 #include <grpc/grpc.h>
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+
+#include "src/core/lib/support/atomic.h"
+
+extern "C" {
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/api_trace.h"
 #include "src/core/lib/surface/call.h"
 #include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/lame_client.h"
 #include "src/core/lib/transport/static_metadata.h"
+}
 
-typedef struct {
+namespace grpc_core {
+
+namespace {
+
+struct CallData {
   grpc_linked_mdelem status;
   grpc_linked_mdelem details;
-  gpr_atm filled_metadata;
-} call_data;
+  grpc_core::atomic<bool> filled_metadata;
+};
 
-typedef struct {
+struct ChannelData {
   grpc_status_code error_code;
   const char *error_message;
-} channel_data;
+};
 
 static void fill_metadata(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
                           grpc_metadata_batch *mdb) {
-  call_data *calld = elem->call_data;
-  if (!gpr_atm_no_barrier_cas(&calld->filled_metadata, 0, 1)) {
+  CallData *calld = static_cast<CallData *>(elem->call_data);
+  bool expected = false;
+  if (!calld->filled_metadata.compare_exchange_strong(
+          expected, true, grpc_core::memory_order_relaxed,
+          grpc_core::memory_order_relaxed)) {
     return;
   }
-  channel_data *chand = elem->channel_data;
+  ChannelData *chand = static_cast<ChannelData *>(elem->channel_data);
   char tmp[GPR_LTOA_MIN_BUFSIZE];
   gpr_ltoa(chand->error_code, tmp);
   calld->status.md = grpc_mdelem_from_slices(
@@ -83,7 +94,6 @@
 static void lame_start_transport_stream_op_batch(
     grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
     grpc_transport_stream_op_batch *op) {
-  GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
   if (op->recv_initial_metadata) {
     fill_metadata(exec_ctx, elem,
                   op->payload->recv_initial_metadata.recv_initial_metadata);
@@ -127,8 +137,6 @@
 static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx,
                                   grpc_call_element *elem,
                                   const grpc_call_element_args *args) {
-  call_data *calld = elem->call_data;
-  gpr_atm_no_barrier_store(&calld->filled_metadata, 0);
   return GRPC_ERROR_NONE;
 }
 
@@ -149,18 +157,22 @@
 static void destroy_channel_elem(grpc_exec_ctx *exec_ctx,
                                  grpc_channel_element *elem) {}
 
-const grpc_channel_filter grpc_lame_filter = {
-    lame_start_transport_stream_op_batch,
-    lame_start_transport_op,
-    sizeof(call_data),
-    init_call_elem,
+}  // namespace
+
+}  // namespace grpc_core
+
+extern "C" const grpc_channel_filter grpc_lame_filter = {
+    grpc_core::lame_start_transport_stream_op_batch,
+    grpc_core::lame_start_transport_op,
+    sizeof(grpc_core::CallData),
+    grpc_core::init_call_elem,
     grpc_call_stack_ignore_set_pollset_or_pollset_set,
-    destroy_call_elem,
-    sizeof(channel_data),
-    init_channel_elem,
-    destroy_channel_elem,
-    lame_get_peer,
-    lame_get_channel_info,
+    grpc_core::destroy_call_elem,
+    sizeof(grpc_core::ChannelData),
+    grpc_core::init_channel_elem,
+    grpc_core::destroy_channel_elem,
+    grpc_core::lame_get_peer,
+    grpc_core::lame_get_channel_info,
     "lame-client",
 };
 
@@ -171,7 +183,6 @@
                                               const char *error_message) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_channel_element *elem;
-  channel_data *chand;
   grpc_channel *channel = grpc_channel_create(&exec_ctx, target, NULL,
                                               GRPC_CLIENT_LAME_CHANNEL, NULL);
   elem = grpc_channel_stack_element(grpc_channel_get_channel_stack(channel), 0);
@@ -180,7 +191,7 @@
       "error_message=%s)",
       3, (target, (int)error_code, error_message));
   GPR_ASSERT(elem->filter == &grpc_lame_filter);
-  chand = (channel_data *)elem->channel_data;
+  auto chand = static_cast<grpc_core::ChannelData *>(elem->channel_data);
   chand->error_code = error_code;
   chand->error_message = error_message;
   grpc_exec_ctx_finish(&exec_ctx);
diff --git a/src/core/lib/surface/server.c b/src/core/lib/surface/server.c
index 26c81e9..934ca04 100644
--- a/src/core/lib/surface/server.c
+++ b/src/core/lib/surface/server.c
@@ -981,7 +981,7 @@
 
 static void register_completion_queue(grpc_server *server,
                                       grpc_completion_queue *cq,
-                                      bool is_non_listening, void *reserved) {
+                                      void *reserved) {
   size_t i, n;
   GPR_ASSERT(!reserved);
   for (i = 0; i < server->cq_count; i++) {
@@ -990,10 +990,6 @@
 
   grpc_cq_mark_server_cq(cq);
 
-  if (is_non_listening) {
-    grpc_cq_mark_non_listening_server_cq(cq);
-  }
-
   GRPC_CQ_INTERNAL_REF(cq, "server");
   n = server->cq_count++;
   server->cqs = gpr_realloc(server->cqs,
@@ -1016,16 +1012,7 @@
        calls grpc_completion_queue_pluck() on server completion queues */
   }
 
-  register_completion_queue(server, cq, false, reserved);
-}
-
-void grpc_server_register_non_listening_completion_queue(
-    grpc_server *server, grpc_completion_queue *cq, void *reserved) {
-  GRPC_API_TRACE(
-      "grpc_server_register_non_listening_completion_queue(server=%p, cq=%p, "
-      "reserved=%p)",
-      3, (server, cq, reserved));
-  register_completion_queue(server, cq, true, reserved);
+  register_completion_queue(server, cq, reserved);
 }
 
 grpc_server *grpc_server_create(const grpc_channel_args *args, void *reserved) {
@@ -1033,8 +1020,6 @@
 
   grpc_server *server = gpr_zalloc(sizeof(grpc_server));
 
-  GPR_ASSERT(grpc_is_initialized() && "call grpc_init()");
-
   gpr_mu_init(&server->mu_global);
   gpr_mu_init(&server->mu_call);
   gpr_cv_init(&server->starting_cv);
@@ -1123,7 +1108,7 @@
   server->requested_calls_per_cq =
       gpr_malloc(sizeof(*server->requested_calls_per_cq) * server->cq_count);
   for (i = 0; i < server->cq_count; i++) {
-    if (!grpc_cq_is_non_listening_server_cq(server->cqs[i])) {
+    if (grpc_cq_can_listen(server->cqs[i])) {
       server->pollsets[server->pollset_count++] =
           grpc_cq_pollset(server->cqs[i]);
     }
diff --git a/src/core/lib/surface/version.c b/src/core/lib/surface/version.c
index 3793845..cddc595 100644
--- a/src/core/lib/surface/version.c
+++ b/src/core/lib/surface/version.c
@@ -38,4 +38,4 @@
 
 const char *grpc_version_string(void) { return "4.0.0-dev"; }
 
-const char *grpc_g_stands_for(void) { return "gentle"; }
+const char *grpc_g_stands_for(void) { return "gregarious"; }
diff --git a/src/core/lib/transport/service_config.c b/src/core/lib/transport/service_config.c
index 1195f75..6aecb7f 100644
--- a/src/core/lib/transport/service_config.c
+++ b/src/core/lib/transport/service_config.c
@@ -162,7 +162,6 @@
 static bool parse_json_method_config(
     grpc_exec_ctx* exec_ctx, grpc_json* json,
     void* (*create_value)(const grpc_json* method_config_json),
-    const grpc_slice_hash_table_vtable* vtable,
     grpc_slice_hash_table_entry* entries, size_t* idx) {
   // Construct value.
   void* method_config = create_value(json);
@@ -185,13 +184,11 @@
   // Add entry for each path.
   for (size_t i = 0; i < paths.count; ++i) {
     entries[*idx].key = grpc_slice_from_copied_string(paths.strs[i]);
-    entries[*idx].value = vtable->copy_value(method_config);
-    entries[*idx].vtable = vtable;
+    entries[*idx].value = method_config;
     ++*idx;
   }
   success = true;
 done:
-  vtable->destroy_value(exec_ctx, method_config);
   gpr_strvec_destroy(&paths);
   return success;
 }
@@ -199,7 +196,7 @@
 grpc_slice_hash_table* grpc_service_config_create_method_config_table(
     grpc_exec_ctx* exec_ctx, const grpc_service_config* service_config,
     void* (*create_value)(const grpc_json* method_config_json),
-    const grpc_slice_hash_table_vtable* vtable) {
+    void (*destroy_value)(grpc_exec_ctx* exec_ctx, void* value)) {
   const grpc_json* json = service_config->json_tree;
   // Traverse parsed JSON tree.
   if (json->type != GRPC_JSON_OBJECT || json->key != NULL) return NULL;
@@ -220,8 +217,8 @@
       size_t idx = 0;
       for (grpc_json* method = field->child; method != NULL;
            method = method->next) {
-        if (!parse_json_method_config(exec_ctx, method, create_value, vtable,
-                                      entries, &idx)) {
+        if (!parse_json_method_config(exec_ctx, method, create_value, entries,
+                                      &idx)) {
           return NULL;
         }
       }
@@ -231,12 +228,8 @@
   // Instantiate method config table.
   grpc_slice_hash_table* method_config_table = NULL;
   if (entries != NULL) {
-    method_config_table = grpc_slice_hash_table_create(num_entries, entries);
-    // Clean up.
-    for (size_t i = 0; i < num_entries; ++i) {
-      grpc_slice_unref_internal(exec_ctx, entries[i].key);
-      vtable->destroy_value(exec_ctx, entries[i].value);
-    }
+    method_config_table =
+        grpc_slice_hash_table_create(num_entries, entries, destroy_value);
     gpr_free(entries);
   }
   return method_config_table;
diff --git a/src/core/lib/transport/service_config.h b/src/core/lib/transport/service_config.h
index ebfc59b..e0548b9 100644
--- a/src/core/lib/transport/service_config.h
+++ b/src/core/lib/transport/service_config.h
@@ -57,12 +57,12 @@
 /// Creates a method config table based on the data in \a json.
 /// The table's keys are request paths.  The table's value type is
 /// returned by \a create_value(), based on data parsed from the JSON tree.
-/// \a vtable provides methods used to manage the values.
+/// \a destroy_value is used to clean up values.
 /// Returns NULL on error.
 grpc_slice_hash_table* grpc_service_config_create_method_config_table(
     grpc_exec_ctx* exec_ctx, const grpc_service_config* service_config,
     void* (*create_value)(const grpc_json* method_config_json),
-    const grpc_slice_hash_table_vtable* vtable);
+    void (*destroy_value)(grpc_exec_ctx* exec_ctx, void* value));
 
 /// A helper function for looking up values in the table returned by
 /// \a grpc_service_config_create_method_config_table().
diff --git a/src/core/tsi/fake_transport_security.c b/src/core/tsi/fake_transport_security.c
index 822fad5..1836bee 100644
--- a/src/core/tsi/fake_transport_security.c
+++ b/src/core/tsi/fake_transport_security.c
@@ -499,6 +499,7 @@
     fake_handshaker_extract_peer,
     fake_handshaker_create_frame_protector,
     fake_handshaker_destroy,
+    NULL,
 };
 
 tsi_handshaker *tsi_create_fake_handshaker(int is_client) {
diff --git a/src/core/tsi/ssl_transport_security.c b/src/core/tsi/ssl_transport_security.c
index 5f4705d..e1d634a 100644
--- a/src/core/tsi/ssl_transport_security.c
+++ b/src/core/tsi/ssl_transport_security.c
@@ -479,9 +479,9 @@
 }
 
 /* Loads an in-memory PEM certificate chain into the SSL context. */
-static tsi_result ssl_ctx_use_certificate_chain(
-    SSL_CTX *context, const unsigned char *pem_cert_chain,
-    size_t pem_cert_chain_size) {
+static tsi_result ssl_ctx_use_certificate_chain(SSL_CTX *context,
+                                                const char *pem_cert_chain,
+                                                size_t pem_cert_chain_size) {
   tsi_result result = TSI_OK;
   X509 *certificate = NULL;
   BIO *pem;
@@ -522,8 +522,7 @@
 }
 
 /* Loads an in-memory PEM private key into the SSL context. */
-static tsi_result ssl_ctx_use_private_key(SSL_CTX *context,
-                                          const unsigned char *pem_key,
+static tsi_result ssl_ctx_use_private_key(SSL_CTX *context, const char *pem_key,
                                           size_t pem_key_size) {
   tsi_result result = TSI_OK;
   EVP_PKEY *private_key = NULL;
@@ -549,9 +548,11 @@
 
 /* Loads in-memory PEM verification certs into the SSL context and optionally
    returns the verification cert names (root_names can be NULL). */
-static tsi_result ssl_ctx_load_verification_certs(
-    SSL_CTX *context, const unsigned char *pem_roots, size_t pem_roots_size,
-    STACK_OF(X509_NAME) * *root_names) {
+static tsi_result ssl_ctx_load_verification_certs(SSL_CTX *context,
+                                                  const char *pem_roots,
+                                                  size_t pem_roots_size,
+                                                  STACK_OF(X509_NAME) *
+                                                      *root_names) {
   tsi_result result = TSI_OK;
   size_t num_roots = 0;
   X509 *root = NULL;
@@ -618,24 +619,25 @@
 /* Populates the SSL context with a private key and a cert chain, and sets the
    cipher list and the ephemeral ECDH key. */
 static tsi_result populate_ssl_context(
-    SSL_CTX *context, const unsigned char *pem_private_key,
-    size_t pem_private_key_size, const unsigned char *pem_certificate_chain,
-    size_t pem_certificate_chain_size, const char *cipher_list) {
+    SSL_CTX *context, const tsi_ssl_pem_key_cert_pair *key_cert_pair,
+    const char *cipher_list) {
   tsi_result result = TSI_OK;
-  if (pem_certificate_chain != NULL) {
-    result = ssl_ctx_use_certificate_chain(context, pem_certificate_chain,
-                                           pem_certificate_chain_size);
-    if (result != TSI_OK) {
-      gpr_log(GPR_ERROR, "Invalid cert chain file.");
-      return result;
+  if (key_cert_pair != NULL) {
+    if (key_cert_pair->cert_chain != NULL) {
+      result = ssl_ctx_use_certificate_chain(context, key_cert_pair->cert_chain,
+                                             strlen(key_cert_pair->cert_chain));
+      if (result != TSI_OK) {
+        gpr_log(GPR_ERROR, "Invalid cert chain file.");
+        return result;
+      }
     }
-  }
-  if (pem_private_key != NULL) {
-    result =
-        ssl_ctx_use_private_key(context, pem_private_key, pem_private_key_size);
-    if (result != TSI_OK || !SSL_CTX_check_private_key(context)) {
-      gpr_log(GPR_ERROR, "Invalid private key.");
-      return result != TSI_OK ? result : TSI_INVALID_ARGUMENT;
+    if (key_cert_pair->private_key != NULL) {
+      result = ssl_ctx_use_private_key(context, key_cert_pair->private_key,
+                                       strlen(key_cert_pair->private_key));
+      if (result != TSI_OK || !SSL_CTX_check_private_key(context)) {
+        gpr_log(GPR_ERROR, "Invalid private key.");
+        return result != TSI_OK ? result : TSI_INVALID_ARGUMENT;
+      }
     }
   }
   if ((cipher_list != NULL) && !SSL_CTX_set_cipher_list(context, cipher_list)) {
@@ -656,13 +658,12 @@
 }
 
 /* Extracts the CN and the SANs from an X509 cert as a peer object. */
-static tsi_result extract_x509_subject_names_from_pem_cert(
-    const unsigned char *pem_cert, size_t pem_cert_size, tsi_peer *peer) {
+static tsi_result extract_x509_subject_names_from_pem_cert(const char *pem_cert,
+                                                           tsi_peer *peer) {
   tsi_result result = TSI_OK;
   X509 *cert = NULL;
   BIO *pem;
-  GPR_ASSERT(pem_cert_size <= INT_MAX);
-  pem = BIO_new_mem_buf((void *)pem_cert, (int)pem_cert_size);
+  pem = BIO_new_mem_buf((void *)pem_cert, (int)strlen(pem_cert));
   if (pem == NULL) return TSI_OUT_OF_RESOURCES;
 
   cert = PEM_read_bio_X509(pem, NULL, NULL, "");
@@ -679,8 +680,7 @@
 
 /* Builds the alpn protocol name list according to rfc 7301. */
 static tsi_result build_alpn_protocol_name_list(
-    const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
+    const char **alpn_protocols, uint16_t num_alpn_protocols,
     unsigned char **protocol_name_list, size_t *protocol_name_list_length) {
   uint16_t i;
   unsigned char *current;
@@ -688,19 +688,21 @@
   *protocol_name_list_length = 0;
   if (num_alpn_protocols == 0) return TSI_INVALID_ARGUMENT;
   for (i = 0; i < num_alpn_protocols; i++) {
-    if (alpn_protocols_lengths[i] == 0) {
-      gpr_log(GPR_ERROR, "Invalid 0-length protocol name.");
+    size_t length = alpn_protocols[i] == NULL ? 0 : strlen(alpn_protocols[i]);
+    if (length == 0 || length > 255) {
+      gpr_log(GPR_ERROR, "Invalid protocol name length: %d.", (int)length);
       return TSI_INVALID_ARGUMENT;
     }
-    *protocol_name_list_length += (size_t)alpn_protocols_lengths[i] + 1;
+    *protocol_name_list_length += length + 1;
   }
   *protocol_name_list = gpr_malloc(*protocol_name_list_length);
   if (*protocol_name_list == NULL) return TSI_OUT_OF_RESOURCES;
   current = *protocol_name_list;
   for (i = 0; i < num_alpn_protocols; i++) {
-    *(current++) = alpn_protocols_lengths[i];
-    memcpy(current, alpn_protocols[i], alpn_protocols_lengths[i]);
-    current += alpn_protocols_lengths[i];
+    size_t length = strlen(alpn_protocols[i]);
+    *(current++) = (uint8_t)length; /* max checked above. */
+    memcpy(current, alpn_protocols[i], length);
+    current += length;
   }
   /* Safety check. */
   if ((current < *protocol_name_list) ||
@@ -1040,6 +1042,7 @@
     ssl_handshaker_extract_peer,
     ssl_handshaker_create_frame_protector,
     ssl_handshaker_destroy,
+    NULL,
 };
 
 /* --- tsi_ssl_handshaker_factory common methods. --- */
@@ -1280,11 +1283,9 @@
 /* --- tsi_ssl_handshaker_factory constructors. --- */
 
 tsi_result tsi_create_ssl_client_handshaker_factory(
-    const unsigned char *pem_private_key, size_t pem_private_key_size,
-    const unsigned char *pem_cert_chain, size_t pem_cert_chain_size,
-    const unsigned char *pem_root_certs, size_t pem_root_certs_size,
-    const char *cipher_list, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pair,
+    const char *pem_root_certs, const char *cipher_suites,
+    const char **alpn_protocols, uint16_t num_alpn_protocols,
     tsi_ssl_client_handshaker_factory **factory) {
   SSL_CTX *ssl_context = NULL;
   tsi_ssl_client_handshaker_factory *impl = NULL;
@@ -1307,20 +1308,19 @@
 
   do {
     result =
-        populate_ssl_context(ssl_context, pem_private_key, pem_private_key_size,
-                             pem_cert_chain, pem_cert_chain_size, cipher_list);
+        populate_ssl_context(ssl_context, pem_key_cert_pair, cipher_suites);
     if (result != TSI_OK) break;
     result = ssl_ctx_load_verification_certs(ssl_context, pem_root_certs,
-                                             pem_root_certs_size, NULL);
+                                             strlen(pem_root_certs), NULL);
     if (result != TSI_OK) {
       gpr_log(GPR_ERROR, "Cannot load server root certificates.");
       break;
     }
 
     if (num_alpn_protocols != 0) {
-      result = build_alpn_protocol_name_list(
-          alpn_protocols, alpn_protocols_lengths, num_alpn_protocols,
-          &impl->alpn_protocol_list, &impl->alpn_protocol_list_length);
+      result = build_alpn_protocol_name_list(alpn_protocols, num_alpn_protocols,
+                                             &impl->alpn_protocol_list,
+                                             &impl->alpn_protocol_list_length);
       if (result != TSI_OK) {
         gpr_log(GPR_ERROR, "Building alpn list failed with error %s.",
                 tsi_result_to_string(result));
@@ -1352,34 +1352,24 @@
 }
 
 tsi_result tsi_create_ssl_server_handshaker_factory(
-    const unsigned char **pem_private_keys,
-    const size_t *pem_private_keys_sizes, const unsigned char **pem_cert_chains,
-    const size_t *pem_cert_chains_sizes, size_t key_cert_pair_count,
-    const unsigned char *pem_client_root_certs,
-    size_t pem_client_root_certs_size, int force_client_auth,
-    const char *cipher_list, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pairs,
+    size_t num_key_cert_pairs, const char *pem_client_root_certs,
+    int force_client_auth, const char *cipher_suites,
+    const char **alpn_protocols, uint16_t num_alpn_protocols,
     tsi_ssl_server_handshaker_factory **factory) {
   return tsi_create_ssl_server_handshaker_factory_ex(
-      pem_private_keys, pem_private_keys_sizes, pem_cert_chains,
-      pem_cert_chains_sizes, key_cert_pair_count, pem_client_root_certs,
-      pem_client_root_certs_size,
+      pem_key_cert_pairs, num_key_cert_pairs, pem_client_root_certs,
       force_client_auth ? TSI_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY
                         : TSI_DONT_REQUEST_CLIENT_CERTIFICATE,
-      cipher_list, alpn_protocols, alpn_protocols_lengths, num_alpn_protocols,
-      factory);
+      cipher_suites, alpn_protocols, num_alpn_protocols, factory);
 }
 
 tsi_result tsi_create_ssl_server_handshaker_factory_ex(
-    const unsigned char **pem_private_keys,
-    const size_t *pem_private_keys_sizes, const unsigned char **pem_cert_chains,
-    const size_t *pem_cert_chains_sizes, size_t key_cert_pair_count,
-    const unsigned char *pem_client_root_certs,
-    size_t pem_client_root_certs_size,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pairs,
+    size_t num_key_cert_pairs, const char *pem_client_root_certs,
     tsi_client_certificate_request_type client_certificate_request,
-    const char *cipher_list, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
-    tsi_ssl_server_handshaker_factory **factory) {
+    const char *cipher_suites, const char **alpn_protocols,
+    uint16_t num_alpn_protocols, tsi_ssl_server_handshaker_factory **factory) {
   tsi_ssl_server_handshaker_factory *impl = NULL;
   tsi_result result = TSI_OK;
   size_t i = 0;
@@ -1388,33 +1378,32 @@
 
   if (factory == NULL) return TSI_INVALID_ARGUMENT;
   *factory = NULL;
-  if (key_cert_pair_count == 0 || pem_private_keys == NULL ||
-      pem_cert_chains == NULL) {
+  if (num_key_cert_pairs == 0 || pem_key_cert_pairs == NULL) {
     return TSI_INVALID_ARGUMENT;
   }
 
   impl = gpr_zalloc(sizeof(*impl));
-  impl->ssl_contexts = gpr_zalloc(key_cert_pair_count * sizeof(SSL_CTX *));
+  impl->ssl_contexts = gpr_zalloc(num_key_cert_pairs * sizeof(SSL_CTX *));
   impl->ssl_context_x509_subject_names =
-      gpr_zalloc(key_cert_pair_count * sizeof(tsi_peer));
+      gpr_zalloc(num_key_cert_pairs * sizeof(tsi_peer));
   if (impl->ssl_contexts == NULL ||
       impl->ssl_context_x509_subject_names == NULL) {
     tsi_ssl_server_handshaker_factory_destroy(impl);
     return TSI_OUT_OF_RESOURCES;
   }
-  impl->ssl_context_count = key_cert_pair_count;
+  impl->ssl_context_count = num_key_cert_pairs;
 
   if (num_alpn_protocols > 0) {
-    result = build_alpn_protocol_name_list(
-        alpn_protocols, alpn_protocols_lengths, num_alpn_protocols,
-        &impl->alpn_protocol_list, &impl->alpn_protocol_list_length);
+    result = build_alpn_protocol_name_list(alpn_protocols, num_alpn_protocols,
+                                           &impl->alpn_protocol_list,
+                                           &impl->alpn_protocol_list_length);
     if (result != TSI_OK) {
       tsi_ssl_server_handshaker_factory_destroy(impl);
       return result;
     }
   }
 
-  for (i = 0; i < key_cert_pair_count; i++) {
+  for (i = 0; i < num_key_cert_pairs; i++) {
     do {
       impl->ssl_contexts[i] = SSL_CTX_new(TLSv1_2_method());
       if (impl->ssl_contexts[i] == NULL) {
@@ -1422,16 +1411,15 @@
         result = TSI_OUT_OF_RESOURCES;
         break;
       }
-      result = populate_ssl_context(
-          impl->ssl_contexts[i], pem_private_keys[i], pem_private_keys_sizes[i],
-          pem_cert_chains[i], pem_cert_chains_sizes[i], cipher_list);
+      result = populate_ssl_context(impl->ssl_contexts[i],
+                                    &pem_key_cert_pairs[i], cipher_suites);
       if (result != TSI_OK) break;
 
       if (pem_client_root_certs != NULL) {
         STACK_OF(X509_NAME) *root_names = NULL;
         result = ssl_ctx_load_verification_certs(
             impl->ssl_contexts[i], pem_client_root_certs,
-            pem_client_root_certs_size, &root_names);
+            strlen(pem_client_root_certs), &root_names);
         if (result != TSI_OK) {
           gpr_log(GPR_ERROR, "Invalid verification certs.");
           break;
@@ -1464,7 +1452,7 @@
       }
 
       result = extract_x509_subject_names_from_pem_cert(
-          pem_cert_chains[i], pem_cert_chains_sizes[i],
+          pem_key_cert_pairs[i].cert_chain,
           &impl->ssl_context_x509_subject_names[i]);
       if (result != TSI_OK) break;
 
diff --git a/src/core/tsi/ssl_transport_security.h b/src/core/tsi/ssl_transport_security.h
index 48dcaec..3117571 100644
--- a/src/core/tsi/ssl_transport_security.h
+++ b/src/core/tsi/ssl_transport_security.h
@@ -60,27 +60,32 @@
 typedef struct tsi_ssl_client_handshaker_factory
     tsi_ssl_client_handshaker_factory;
 
+/* Object that holds a private key / certificate chain pair in PEM format. */
+typedef struct {
+  /* private_key is the NULL-terminated string containing the PEM encoding of
+     the client's private key. */
+  const char *private_key;
+
+  /* cert_chain is the NULL-terminated string containing the PEM encoding of
+     the client's certificate chain. */
+  const char *cert_chain;
+} tsi_ssl_pem_key_cert_pair;
+
 /* Creates a client handshaker factory.
-   - pem_private_key is the buffer containing the PEM encoding of the client's
-     private key. This parameter can be NULL if the client does not have a
-     private key.
-   - pem_private_key_size is the size of the associated buffer.
-   - pem_cert_chain is the buffer containing the PEM encoding of the client's
-     certificate chain. This parameter can be NULL if the client does not have
-     a certificate chain.
-   - pem_cert_chain_size is the size of the associated buffer.
-   - pem_roots_cert is the buffer containing the PEM encoding of the server
-     root certificates. This parameter cannot be NULL.
-   - pem_roots_cert_size is the size of the associated buffer.
+   - pem_key_cert_pair is a pointer to the object containing client's private
+     key and certificate chain. This parameter can be NULL if the client does
+     not have such a key/cert pair.
+   - pem_roots_cert is the NULL-terminated string containing the PEM encoding of
+     the client root certificates. This parameter may be NULL if the server does
+     not want the client to be authenticated with SSL.
    - cipher_suites contains an optional list of the ciphers that the client
      supports. The format of this string is described in:
      https://www.openssl.org/docs/apps/ciphers.html.
      This parameter can be set to NULL to use the default set of ciphers.
      TODO(jboeuf): Revisit the format of this parameter.
-   - alpn_protocols is an array containing the protocol names that the
-     handshakers created with this factory support. This parameter can be NULL.
-   - alpn_protocols_lengths is an array containing the lengths of the alpn
-     protocols specified in alpn_protocols. This parameter can be NULL.
+   - alpn_protocols is an array containing the NULL terminated protocol names
+     that the handshakers created with this factory support. This parameter can
+     be NULL.
    - num_alpn_protocols is the number of alpn protocols and associated lengths
      specified. If this parameter is 0, the other alpn parameters must be NULL.
    - factory is the address of the factory pointer to be created.
@@ -88,11 +93,9 @@
    - This method returns TSI_OK on success or TSI_INVALID_PARAMETER in the case
      where a parameter is invalid.  */
 tsi_result tsi_create_ssl_client_handshaker_factory(
-    const unsigned char *pem_private_key, size_t pem_private_key_size,
-    const unsigned char *pem_cert_chain, size_t pem_cert_chain_size,
-    const unsigned char *pem_root_certs, size_t pem_root_certs_size,
-    const char *cipher_suites, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pair,
+    const char *pem_root_certs, const char *cipher_suites,
+    const char **alpn_protocols, uint16_t num_alpn_protocols,
     tsi_ssl_client_handshaker_factory **factory);
 
 /* Creates a client handshaker.
@@ -122,37 +125,19 @@
     tsi_ssl_server_handshaker_factory;
 
 /* Creates a server handshaker factory.
-   - version indicates which version of the specification to use.
-   - pem_private_keys is an array containing the PEM encoding of the server's
-     private keys.  This parameter cannot be NULL. The size of the array is
-     given by the key_cert_pair_count parameter.
-   - pem_private_keys_sizes is the array containing the sizes of the associated
-     buffers.
-   - pem_cert_chains is an array containing the PEM encoding of the server's
-     cert chains.  This parameter cannot be NULL. The size of the array is
-     given by the key_cert_pair_count parameter.
-   - pem_cert_chains_sizes is the array containing the sizes of the associated
-     buffers.
-   - key_cert_pair_count indicates the number of items in the private_key_files
-     and cert_chain_files parameters.
-   - pem_client_roots is the buffer containing the PEM encoding of the client
-     root certificates. This parameter may be NULL in which case the server will
-     not authenticate the client. If not NULL, the force_client_auth parameter
-     specifies if the server will accept only authenticated clients or both
-     authenticated and non-authenticated clients.
-   - pem_client_root_certs_size is the size of the associated buffer.
-   - force_client_auth, if set to non-zero will force the client to authenticate
-     with an SSL cert. Note that this option is ignored if pem_client_root_certs
-     is NULL or pem_client_roots_certs_size is 0
+   - pem_key_cert_pairs is an array private key / certificate chains of the
+     server.
+   - num_key_cert_pairs is the number of items in the pem_key_cert_pairs array.
+   - pem_root_certs is the NULL-terminated string containing the PEM encoding
+     of the server root certificates.
    - cipher_suites contains an optional list of the ciphers that the server
      supports. The format of this string is described in:
      https://www.openssl.org/docs/apps/ciphers.html.
      This parameter can be set to NULL to use the default set of ciphers.
      TODO(jboeuf): Revisit the format of this parameter.
-   - alpn_protocols is an array containing the protocol names that the
-     handshakers created with this factory support. This parameter can be NULL.
-   - alpn_protocols_lengths is an array containing the lengths of the alpn
-     protocols specified in alpn_protocols. This parameter can be NULL.
+   - alpn_protocols is an array containing the NULL terminated protocol names
+     that the handshakers created with this factory support. This parameter can
+     be NULL.
    - num_alpn_protocols is the number of alpn protocols and associated lengths
      specified. If this parameter is 0, the other alpn parameters must be NULL.
    - factory is the address of the factory pointer to be created.
@@ -160,13 +145,10 @@
    - This method returns TSI_OK on success or TSI_INVALID_PARAMETER in the case
      where a parameter is invalid.  */
 tsi_result tsi_create_ssl_server_handshaker_factory(
-    const unsigned char **pem_private_keys,
-    const size_t *pem_private_keys_sizes, const unsigned char **pem_cert_chains,
-    const size_t *pem_cert_chains_sizes, size_t key_cert_pair_count,
-    const unsigned char *pem_client_root_certs,
-    size_t pem_client_root_certs_size, int force_client_auth,
-    const char *cipher_suites, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pairs,
+    size_t num_key_cert_pairs, const char *pem_client_root_certs,
+    int force_client_auth, const char *cipher_suites,
+    const char **alpn_protocols, uint16_t num_alpn_protocols,
     tsi_ssl_server_handshaker_factory **factory);
 
 /* Same as tsi_create_ssl_server_handshaker_factory method except uses
@@ -176,15 +158,11 @@
      authenticate with an SSL cert. Note that this option is ignored if
      pem_client_root_certs is NULL or pem_client_roots_certs_size is 0 */
 tsi_result tsi_create_ssl_server_handshaker_factory_ex(
-    const unsigned char **pem_private_keys,
-    const size_t *pem_private_keys_sizes, const unsigned char **pem_cert_chains,
-    const size_t *pem_cert_chains_sizes, size_t key_cert_pair_count,
-    const unsigned char *pem_client_root_certs,
-    size_t pem_client_root_certs_size,
+    const tsi_ssl_pem_key_cert_pair *pem_key_cert_pairs,
+    size_t num_key_cert_pairs, const char *pem_client_root_certs,
     tsi_client_certificate_request_type client_certificate_request,
-    const char *cipher_suites, const unsigned char **alpn_protocols,
-    const unsigned char *alpn_protocols_lengths, uint16_t num_alpn_protocols,
-    tsi_ssl_server_handshaker_factory **factory);
+    const char *cipher_suites, const char **alpn_protocols,
+    uint16_t num_alpn_protocols, tsi_ssl_server_handshaker_factory **factory);
 
 /* Creates a server handshaker.
   - self is the factory from which the handshaker will be created.
diff --git a/src/core/tsi/transport_security.c b/src/core/tsi/transport_security.c
index 67ebe1b..b11c00c 100644
--- a/src/core/tsi/transport_security.c
+++ b/src/core/tsi/transport_security.c
@@ -73,6 +73,8 @@
       return "TSI_HANDSHAKE_IN_PROGRESS";
     case TSI_OUT_OF_RESOURCES:
       return "TSI_OUT_OF_RESOURCES";
+    case TSI_ASYNC:
+      return "TSI_ASYNC";
     default:
       return "UNKNOWN";
   }
@@ -92,6 +94,9 @@
       protected_output_frames_size == NULL) {
     return TSI_INVALID_ARGUMENT;
   }
+  if (self->vtable == NULL || self->vtable->protect == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->protect(self, unprotected_bytes, unprotected_bytes_size,
                                protected_output_frames,
                                protected_output_frames_size);
@@ -104,6 +109,9 @@
       protected_output_frames_size == NULL || still_pending_size == NULL) {
     return TSI_INVALID_ARGUMENT;
   }
+  if (self->vtable == NULL || self->vtable->protect_flush == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->protect_flush(self, protected_output_frames,
                                      protected_output_frames_size,
                                      still_pending_size);
@@ -118,6 +126,9 @@
       unprotected_bytes_size == NULL) {
     return TSI_INVALID_ARGUMENT;
   }
+  if (self->vtable == NULL || self->vtable->unprotect == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->unprotect(self, protected_frames_bytes,
                                  protected_frames_bytes_size, unprotected_bytes,
                                  unprotected_bytes_size);
@@ -139,6 +150,9 @@
     return TSI_INVALID_ARGUMENT;
   }
   if (self->frame_protector_created) return TSI_FAILED_PRECONDITION;
+  if (self->vtable == NULL || self->vtable->get_bytes_to_send_to_peer == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->get_bytes_to_send_to_peer(self, bytes, bytes_size);
 }
 
@@ -149,12 +163,18 @@
     return TSI_INVALID_ARGUMENT;
   }
   if (self->frame_protector_created) return TSI_FAILED_PRECONDITION;
+  if (self->vtable == NULL || self->vtable->process_bytes_from_peer == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->process_bytes_from_peer(self, bytes, bytes_size);
 }
 
 tsi_result tsi_handshaker_get_result(tsi_handshaker *self) {
   if (self == NULL) return TSI_INVALID_ARGUMENT;
   if (self->frame_protector_created) return TSI_FAILED_PRECONDITION;
+  if (self->vtable == NULL || self->vtable->get_result == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->get_result(self);
 }
 
@@ -165,6 +185,9 @@
   if (tsi_handshaker_get_result(self) != TSI_OK) {
     return TSI_FAILED_PRECONDITION;
   }
+  if (self->vtable == NULL || self->vtable->extract_peer == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   return self->vtable->extract_peer(self, peer);
 }
 
@@ -177,19 +200,77 @@
   if (tsi_handshaker_get_result(self) != TSI_OK) {
     return TSI_FAILED_PRECONDITION;
   }
+  if (self->vtable == NULL || self->vtable->create_frame_protector == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
   result = self->vtable->create_frame_protector(self, max_protected_frame_size,
                                                 protector);
   if (result == TSI_OK) {
-    self->frame_protector_created = 1;
+    self->frame_protector_created = true;
   }
   return result;
 }
 
+tsi_result tsi_handshaker_next(
+    tsi_handshaker *self, const unsigned char *received_bytes,
+    size_t received_bytes_size, unsigned char **bytes_to_send,
+    size_t *bytes_to_send_size, tsi_handshaker_result **handshaker_result,
+    tsi_handshaker_on_next_done_cb cb, void *user_data) {
+  if (self == NULL) return TSI_INVALID_ARGUMENT;
+  if (self->handshaker_result_created) return TSI_FAILED_PRECONDITION;
+  if (self->vtable == NULL || self->vtable->next == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
+  return self->vtable->next(self, received_bytes, received_bytes_size,
+                            bytes_to_send, bytes_to_send_size,
+                            handshaker_result, cb, user_data);
+}
+
 void tsi_handshaker_destroy(tsi_handshaker *self) {
   if (self == NULL) return;
   self->vtable->destroy(self);
 }
 
+/* --- tsi_handshaker_result implementation. --- */
+
+tsi_result tsi_handshaker_result_extract_peer(const tsi_handshaker_result *self,
+                                              tsi_peer *peer) {
+  if (self == NULL || peer == NULL) return TSI_INVALID_ARGUMENT;
+  memset(peer, 0, sizeof(tsi_peer));
+  if (self->vtable == NULL || self->vtable->extract_peer == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
+  return self->vtable->extract_peer(self, peer);
+}
+
+tsi_result tsi_handshaker_result_create_frame_protector(
+    const tsi_handshaker_result *self, size_t *max_protected_frame_size,
+    tsi_frame_protector **protector) {
+  if (self == NULL || protector == NULL) return TSI_INVALID_ARGUMENT;
+  if (self->vtable == NULL || self->vtable->create_frame_protector == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
+  return self->vtable->create_frame_protector(self, max_protected_frame_size,
+                                              protector);
+}
+
+tsi_result tsi_handshaker_result_get_unused_bytes(
+    const tsi_handshaker_result *self, unsigned char **bytes,
+    size_t *bytes_size) {
+  if (self == NULL || bytes == NULL || bytes_size == NULL) {
+    return TSI_INVALID_ARGUMENT;
+  }
+  if (self->vtable == NULL || self->vtable->get_unused_bytes == NULL) {
+    return TSI_UNIMPLEMENTED;
+  }
+  return self->vtable->get_unused_bytes(self, bytes, bytes_size);
+}
+
+void tsi_handshaker_result_destroy(tsi_handshaker_result *self) {
+  if (self == NULL) return;
+  self->vtable->destroy(self);
+}
+
 /* --- tsi_peer implementation. --- */
 
 tsi_peer_property tsi_init_peer_property(void) {
diff --git a/src/core/tsi/transport_security.h b/src/core/tsi/transport_security.h
index 491fa1a..a4c9cbc 100644
--- a/src/core/tsi/transport_security.h
+++ b/src/core/tsi/transport_security.h
@@ -34,6 +34,8 @@
 #ifndef GRPC_CORE_TSI_TRANSPORT_SECURITY_H
 #define GRPC_CORE_TSI_TRANSPORT_SECURITY_H
 
+#include <stdbool.h>
+
 #include "src/core/tsi/transport_security_interface.h"
 
 #ifdef __cplusplus
@@ -81,11 +83,33 @@
                                        size_t *max_protected_frame_size,
                                        tsi_frame_protector **protector);
   void (*destroy)(tsi_handshaker *self);
+  tsi_result (*next)(tsi_handshaker *self, const unsigned char *received_bytes,
+                     size_t received_bytes_size, unsigned char **bytes_to_send,
+                     size_t *bytes_to_send_size,
+                     tsi_handshaker_result **handshaker_result,
+                     tsi_handshaker_on_next_done_cb cb, void *user_data);
 } tsi_handshaker_vtable;
 
 struct tsi_handshaker {
   const tsi_handshaker_vtable *vtable;
-  int frame_protector_created;
+  bool frame_protector_created;
+  bool handshaker_result_created;
+};
+
+/* Base for tsi_handshaker_result implementations.
+   See transport_security_interface.h for documentation. */
+typedef struct {
+  tsi_result (*extract_peer)(const tsi_handshaker_result *self, tsi_peer *peer);
+  tsi_result (*create_frame_protector)(const tsi_handshaker_result *self,
+                                       size_t *max_output_protected_frame_size,
+                                       tsi_frame_protector **protector);
+  tsi_result (*get_unused_bytes)(const tsi_handshaker_result *self,
+                                 unsigned char **bytes, size_t *bytes_size);
+  void (*destroy)(tsi_handshaker_result *self);
+} tsi_handshaker_result_vtable;
+
+struct tsi_handshaker_result {
+  const tsi_handshaker_result_vtable *vtable;
 };
 
 /* Peer and property construction/destruction functions. */
diff --git a/src/core/tsi/transport_security_adapter.c b/src/core/tsi/transport_security_adapter.c
new file mode 100644
index 0000000..9f2147b
--- /dev/null
+++ b/src/core/tsi/transport_security_adapter.c
@@ -0,0 +1,236 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/tsi/transport_security_adapter.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include "src/core/tsi/transport_security.h"
+
+#define TSI_ADAPTER_INITIAL_BUFFER_SIZE 256
+
+/* --- tsi_adapter_handshaker_result implementation ---*/
+
+typedef struct {
+  tsi_handshaker_result base;
+  tsi_handshaker *wrapped;
+  unsigned char *unused_bytes;
+  size_t unused_bytes_size;
+} tsi_adapter_handshaker_result;
+
+static tsi_result adapter_result_extract_peer(const tsi_handshaker_result *self,
+                                              tsi_peer *peer) {
+  tsi_adapter_handshaker_result *impl = (tsi_adapter_handshaker_result *)self;
+  return tsi_handshaker_extract_peer(impl->wrapped, peer);
+}
+
+static tsi_result adapter_result_create_frame_protector(
+    const tsi_handshaker_result *self, size_t *max_output_protected_frame_size,
+    tsi_frame_protector **protector) {
+  tsi_adapter_handshaker_result *impl = (tsi_adapter_handshaker_result *)self;
+  return tsi_handshaker_create_frame_protector(
+      impl->wrapped, max_output_protected_frame_size, protector);
+}
+
+static tsi_result adapter_result_get_unused_bytes(
+    const tsi_handshaker_result *self, unsigned char **bytes,
+    size_t *byte_size) {
+  tsi_adapter_handshaker_result *impl = (tsi_adapter_handshaker_result *)self;
+  *bytes = impl->unused_bytes;
+  *byte_size = impl->unused_bytes_size;
+  return TSI_OK;
+}
+
+static void adapter_result_destroy(tsi_handshaker_result *self) {
+  tsi_adapter_handshaker_result *impl = (tsi_adapter_handshaker_result *)self;
+  tsi_handshaker_destroy(impl->wrapped);
+  gpr_free(impl->unused_bytes);
+  gpr_free(self);
+}
+
+static const tsi_handshaker_result_vtable result_vtable = {
+    adapter_result_extract_peer, adapter_result_create_frame_protector,
+    adapter_result_get_unused_bytes, adapter_result_destroy,
+};
+
+/* Ownership of wrapped tsi_handshaker is transferred to the result object.  */
+static tsi_result tsi_adapter_create_handshaker_result(
+    tsi_handshaker *wrapped, const unsigned char *unused_bytes,
+    size_t unused_bytes_size, tsi_handshaker_result **handshaker_result) {
+  if (wrapped == NULL || (unused_bytes_size > 0 && unused_bytes == NULL)) {
+    return TSI_INVALID_ARGUMENT;
+  }
+  tsi_adapter_handshaker_result *impl = gpr_zalloc(sizeof(*impl));
+  impl->base.vtable = &result_vtable;
+  impl->wrapped = wrapped;
+  impl->unused_bytes_size = unused_bytes_size;
+  if (unused_bytes_size > 0) {
+    impl->unused_bytes = gpr_malloc(unused_bytes_size);
+    memcpy(impl->unused_bytes, unused_bytes, unused_bytes_size);
+  } else {
+    impl->unused_bytes = NULL;
+  }
+  *handshaker_result = &impl->base;
+  return TSI_OK;
+}
+
+/* --- tsi_adapter_handshaker implementation ---*/
+
+typedef struct {
+  tsi_handshaker base;
+  tsi_handshaker *wrapped;
+  unsigned char *adapter_buffer;
+  size_t adapter_buffer_size;
+} tsi_adapter_handshaker;
+
+static tsi_result adapter_get_bytes_to_send_to_peer(tsi_handshaker *self,
+                                                    unsigned char *bytes,
+                                                    size_t *bytes_size) {
+  return tsi_handshaker_get_bytes_to_send_to_peer(
+      tsi_adapter_handshaker_get_wrapped(self), bytes, bytes_size);
+}
+
+static tsi_result adapter_process_bytes_from_peer(tsi_handshaker *self,
+                                                  const unsigned char *bytes,
+                                                  size_t *bytes_size) {
+  return tsi_handshaker_process_bytes_from_peer(
+      tsi_adapter_handshaker_get_wrapped(self), bytes, bytes_size);
+}
+
+static tsi_result adapter_get_result(tsi_handshaker *self) {
+  return tsi_handshaker_get_result(tsi_adapter_handshaker_get_wrapped(self));
+}
+
+static tsi_result adapter_extract_peer(tsi_handshaker *self, tsi_peer *peer) {
+  return tsi_handshaker_extract_peer(tsi_adapter_handshaker_get_wrapped(self),
+                                     peer);
+}
+
+static tsi_result adapter_create_frame_protector(
+    tsi_handshaker *self, size_t *max_protected_frame_size,
+    tsi_frame_protector **protector) {
+  return tsi_handshaker_create_frame_protector(
+      tsi_adapter_handshaker_get_wrapped(self), max_protected_frame_size,
+      protector);
+}
+
+static void adapter_destroy(tsi_handshaker *self) {
+  tsi_adapter_handshaker *impl = (tsi_adapter_handshaker *)self;
+  tsi_handshaker_destroy(impl->wrapped);
+  gpr_free(impl->adapter_buffer);
+  gpr_free(self);
+}
+
+static tsi_result adapter_next(
+    tsi_handshaker *self, const unsigned char *received_bytes,
+    size_t received_bytes_size, unsigned char **bytes_to_send,
+    size_t *bytes_to_send_size, tsi_handshaker_result **handshaker_result,
+    tsi_handshaker_on_next_done_cb cb, void *user_data) {
+  /* Input sanity check.  */
+  if ((received_bytes_size > 0 && received_bytes == NULL) ||
+      bytes_to_send == NULL || bytes_to_send_size == NULL ||
+      handshaker_result == NULL) {
+    return TSI_INVALID_ARGUMENT;
+  }
+
+  /* If there are received bytes, process them first.  */
+  tsi_adapter_handshaker *impl = (tsi_adapter_handshaker *)self;
+  tsi_result status = TSI_OK;
+  size_t bytes_consumed = received_bytes_size;
+  if (received_bytes_size > 0) {
+    status = tsi_handshaker_process_bytes_from_peer(
+        impl->wrapped, received_bytes, &bytes_consumed);
+    if (status != TSI_OK) return status;
+  }
+
+  /* Get bytes to send to the peer, if available.  */
+  size_t offset = 0;
+  do {
+    size_t to_send_size = impl->adapter_buffer_size - offset;
+    status = tsi_handshaker_get_bytes_to_send_to_peer(
+        impl->wrapped, impl->adapter_buffer + offset, &to_send_size);
+    offset += to_send_size;
+    if (status == TSI_INCOMPLETE_DATA) {
+      impl->adapter_buffer_size *= 2;
+      impl->adapter_buffer =
+          gpr_realloc(impl->adapter_buffer, impl->adapter_buffer_size);
+    }
+  } while (status == TSI_INCOMPLETE_DATA);
+  if (status != TSI_OK) return status;
+  *bytes_to_send = impl->adapter_buffer;
+  *bytes_to_send_size = offset;
+
+  /* If handshake completes, create tsi_handshaker_result.  */
+  if (tsi_handshaker_is_in_progress(impl->wrapped)) {
+    *handshaker_result = NULL;
+  } else {
+    size_t unused_bytes_size = received_bytes_size - bytes_consumed;
+    const unsigned char *unused_bytes =
+        unused_bytes_size == 0 ? NULL : received_bytes + bytes_consumed;
+    status = tsi_adapter_create_handshaker_result(
+        impl->wrapped, unused_bytes, unused_bytes_size, handshaker_result);
+    if (status == TSI_OK) {
+      impl->base.handshaker_result_created = true;
+      impl->wrapped = NULL;
+    }
+  }
+  return status;
+}
+
+static const tsi_handshaker_vtable handshaker_vtable = {
+    adapter_get_bytes_to_send_to_peer,
+    adapter_process_bytes_from_peer,
+    adapter_get_result,
+    adapter_extract_peer,
+    adapter_create_frame_protector,
+    adapter_destroy,
+    adapter_next,
+};
+
+tsi_handshaker *tsi_create_adapter_handshaker(tsi_handshaker *wrapped) {
+  GPR_ASSERT(wrapped != NULL);
+  tsi_adapter_handshaker *impl = gpr_zalloc(sizeof(*impl));
+  impl->base.vtable = &handshaker_vtable;
+  impl->wrapped = wrapped;
+  impl->adapter_buffer_size = TSI_ADAPTER_INITIAL_BUFFER_SIZE;
+  impl->adapter_buffer = gpr_malloc(impl->adapter_buffer_size);
+  return &impl->base;
+}
+
+tsi_handshaker *tsi_adapter_handshaker_get_wrapped(tsi_handshaker *adapter) {
+  if (adapter == NULL) return NULL;
+  tsi_adapter_handshaker *impl = (tsi_adapter_handshaker *)adapter;
+  return impl->wrapped;
+}
diff --git a/src/core/tsi/transport_security_adapter.h b/src/core/tsi/transport_security_adapter.h
new file mode 100644
index 0000000..400df2f
--- /dev/null
+++ b/src/core/tsi/transport_security_adapter.h
@@ -0,0 +1,62 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_TSI_TRANSPORT_SECURITY_ADAPTER_H
+#define GRPC_CORE_TSI_TRANSPORT_SECURITY_ADAPTER_H
+
+#include "src/core/tsi/transport_security_interface.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Create a tsi handshaker that takes an implementation of old interface and
+   converts into an implementation of new interface. In the old interface,
+   there are get_bytes_to_send_to_peer, process_bytes_from_peer, get_result,
+   extract_peer, and create_frame_protector. In the new interface, only next
+   method is needed. See transport_security_interface.h for details. Note that
+   this tsi adapter handshaker is temporary. It will be removed once TSI has
+   been fully migrated to the new interface.
+   Ownership of input tsi_handshaker is transferred to this new adapter.  */
+tsi_handshaker *tsi_create_adapter_handshaker(tsi_handshaker *wrapped);
+
+/* Given a tsi adapter handshaker, return the original wrapped handshaker. The
+   adapter still owns the wrapped handshaker which should not be destroyed by
+   the caller. */
+tsi_handshaker *tsi_adapter_handshaker_get_wrapped(tsi_handshaker *adapter);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRPC_CORE_TSI_TRANSPORT_SECURITY_ADAPTER_H */
diff --git a/src/core/tsi/transport_security_interface.h b/src/core/tsi/transport_security_interface.h
index caed43e..f2112b6 100644
--- a/src/core/tsi/transport_security_interface.h
+++ b/src/core/tsi/transport_security_interface.h
@@ -56,7 +56,8 @@
   TSI_NOT_FOUND = 9,
   TSI_PROTOCOL_FAILURE = 10,
   TSI_HANDSHAKE_IN_PROGRESS = 11,
-  TSI_OUT_OF_RESOURCES = 12
+  TSI_OUT_OF_RESOURCES = 12,
+  TSI_ASYNC = 13
 } tsi_result;
 
 typedef enum {
@@ -208,76 +209,138 @@
 /* Destructs the tsi_peer object. */
 void tsi_peer_destruct(tsi_peer *self);
 
+/*  --- tsi_handshaker_result object ---
+
+  This object contains all necessary handshake results and data such as peer
+  info, negotiated keys, unused handshake bytes, when the handshake completes.
+  Implementations of this object must be thread compatible.  */
+
+typedef struct tsi_handshaker_result tsi_handshaker_result;
+
+/* This method extracts tsi peer. It returns TSI_OK assuming there is no fatal
+   error.
+   The caller is responsible for destructing the peer.  */
+tsi_result tsi_handshaker_result_extract_peer(const tsi_handshaker_result *self,
+                                              tsi_peer *peer);
+
+/* This method creates a tsi_frame_protector object. It returns TSI_OK assuming
+   there is no fatal error.
+   The caller is responsible for destroying the protector.  */
+tsi_result tsi_handshaker_result_create_frame_protector(
+    const tsi_handshaker_result *self, size_t *max_output_protected_frame_size,
+    tsi_frame_protector **protector);
+
+/* This method returns the unused bytes from the handshake. It returns TSI_OK
+   assuming there is no fatal error.
+   Ownership of the bytes is retained by the handshaker result. As a
+   consequence, the caller must not free the bytes.  */
+tsi_result tsi_handshaker_result_get_unused_bytes(
+    const tsi_handshaker_result *self, unsigned char **bytes,
+    size_t *byte_size);
+
+/* This method releases the tsi_handshaker_handshaker object. After this method
+   is called, no other method can be called on the object.  */
+void tsi_handshaker_result_destroy(tsi_handshaker_result *self);
+
 /* --- tsi_handshaker objects ----
 
    Implementations of this object must be thread compatible.
 
-   A typical usage of this object would be:
+   ------------------------------------------------------------------------
+
+   A typical usage supporting both synchronous and asynchronous TSI handshaker
+   implementations would be:
 
    ------------------------------------------------------------------------
-   tsi_result result = TSI_OK;
-   unsigned char buf[4096];
-   size_t buf_offset;
-   size_t buf_size;
-   while (1) {
-     // See if we need to send some bytes to the peer.
-     do {
-       size_t buf_size_to_send = sizeof(buf);
-       result = tsi_handshaker_get_bytes_to_send_to_peer(handshaker, buf,
-                                                         &buf_size_to_send);
-       if (buf_size_to_send > 0) send_bytes_to_peer(buf, buf_size_to_send);
-     } while (result == TSI_INCOMPLETE_DATA);
-     if (result != TSI_OK) return result;
-     if (!tsi_handshaker_is_in_progress(handshaker)) break;
 
-     do {
-       // Read bytes from the peer.
-       buf_size = sizeof(buf);
-       buf_offset = 0;
-       read_bytes_from_peer(buf, &buf_size);
-       if (buf_size == 0) break;
+   typedef struct {
+     tsi_handshaker *handshaker;
+     tsi_handshaker_result *handshaker_result;
+     unsigned char *handshake_buffer;
+     size_t handshake_buffer_size;
+     ...
+   } security_handshaker;
 
-       // Process the bytes from the peer. We have to be careful as these bytes
-       // may contain non-handshake data (protected data). If this is the case,
-       // we will exit from the loop with buf_size > 0.
-       size_t consumed_by_handshaker = buf_size;
-       result = tsi_handshaker_process_bytes_from_peer(
-           handshaker, buf, &consumed_by_handshaker);
-       buf_size -= consumed_by_handshaker;
-       buf_offset += consumed_by_handshaker;
-     } while (result == TSI_INCOMPLETE_DATA);
-
-     if (result != TSI_OK) return result;
-     if (!tsi_handshaker_is_in_progress(handshaker)) break;
+   void do_handshake(security_handshaker *h, ...) {
+     // Start the handshake by the calling do_handshake_next.
+     do_handshake_next(h, NULL, 0);
+     ...
    }
 
-   // Check the Peer.
-   tsi_peer peer;
-   do {
-     result = tsi_handshaker_extract_peer(handshaker, &peer);
-     if (result != TSI_OK) break;
-     result = check_peer(&peer);
-   } while (0);
-   tsi_peer_destruct(&peer);
-   if (result != TSI_OK) return result;
-
-   // Create the protector.
-   tsi_frame_protector* protector = NULL;
-   result = tsi_handshaker_create_frame_protector(handshaker, NULL,
-                                                  &protector);
-   if (result != TSI_OK) return result;
-
-   // Do not forget to unprotect outstanding data if any.
-   if (buf_size > 0) {
-     result = tsi_frame_protector_unprotect(protector, buf + buf_offset,
-                                            buf_size, ..., ...);
-     ....
+   // This method is the callback function when data is received from the
+   // peer. This method will read bytes into the handshake buffer and call
+   // do_handshake_next.
+   void on_handshake_data_received_from_peer(void *user_data) {
+     security_handshaker *h = (security_handshaker *)user_data;
+     size_t bytes_received_size = h->handshake_buffer_size;
+     read_bytes_from_peer(h->handshake_buffer, &bytes_received_size);
+     do_handshake_next(h, h->handshake_buffer, bytes_received_size);
    }
-   ...
+
+   // This method processes a step of handshake, calling tsi_handshaker_next.
+   void do_handshake_next(security_handshaker *h,
+                          const unsigned char* bytes_received,
+                          size_t bytes_received_size) {
+     tsi_result status = TSI_OK;
+     unsigned char *bytes_to_send = NULL;
+     size_t bytes_to_send_size = 0;
+     tsi_handshaker_result *result = NULL;
+     status = tsi_handshaker_next(
+         handshaker, bytes_received, bytes_received_size, &bytes_to_send,
+         &bytes_to_send_size, &result, on_handshake_next_done, h);
+     // If TSI handshaker is asynchronous, on_handshake_next_done will be
+     // executed inside tsi_handshaker_next.
+     if (status == TSI_ASYNC) return;
+     // If TSI handshaker is synchronous, invoke callback directly in this
+     // thread.
+     on_handshake_next_done(status, (void *)h, bytes_to_send,
+                            bytes_to_send_size, result);
+   }
+
+   // This is the callback function to execute after tsi_handshaker_next.
+   // It is passed to tsi_handshaker_next as a function parameter.
+   void on_handshake_next_done(
+       tsi_result status, void *user_data, const unsigned char *bytes_to_send,
+       size_t bytes_to_send_size, tsi_handshaker_result *result) {
+     security_handshaker *h = (security_handshaker *)user_data;
+     if (status == TSI_INCOMPLETE_DATA) {
+       // Schedule an asynchronous read from the peer. If handshake data are
+       // received, on_handshake_data_received_from_peer will be called.
+       async_read_from_peer(..., ..., on_handshake_data_received_from_peer);
+       return;
+     }
+     if (status != TSI_OK) return;
+
+     if (bytes_to_send_size > 0) {
+       send_bytes_to_peer(bytes_to_send, bytes_to_send_size);
+     }
+
+     if (result != NULL) {
+       // Handshake completed.
+       h->result = result;
+       // Check the Peer.
+       tsi_peer peer;
+       status = tsi_handshaker_result_extract_peer(result, &peer);
+       if (status != TSI_OK) return;
+       status = check_peer(&peer);
+       tsi_peer_destruct(&peer);
+       if (status != TSI_OK) return;
+
+       // Create the protector.
+       tsi_frame_protector* protector = NULL;
+       status = tsi_handshaker_result_create_frame_protector(result, NULL,
+                                                             &protector);
+       if (status != TSI_OK) return;
+
+       // Do not forget to unprotect outstanding data if any.
+       ....
+     }
+   }
    ------------------------------------------------------------------------   */
 typedef struct tsi_handshaker tsi_handshaker;
 
-/* Gets bytes that need to be sent to the peer.
+/* TO BE DEPRECATED SOON. Use tsi_handshaker_next instead.
+   Gets bytes that need to be sent to the peer.
    - bytes is the buffer that will be written with the data to be sent to the
      peer.
    - bytes_size is an input/output parameter specifying the capacity of the
@@ -292,7 +355,8 @@
                                                     unsigned char *bytes,
                                                     size_t *bytes_size);
 
-/* Processes bytes received from the peer.
+/* TO BE DEPRECATED SOON. Use tsi_handshaker_next instead.
+   Processes bytes received from the peer.
    - bytes is the buffer containing the data.
    - bytes_size is an input/output parameter specifying the size of the data as
      input and the number of bytes consumed as output.
@@ -305,24 +369,29 @@
                                                   const unsigned char *bytes,
                                                   size_t *bytes_size);
 
-/* Gets the result of the handshaker.
+/* TO BE DEPRECATED SOON.
+   Gets the result of the handshaker.
    Returns TSI_OK if the hanshake completed successfully and there has been no
    errors. Returns TSI_HANDSHAKE_IN_PROGRESS if the handshaker is not done yet
    but no error has been encountered so far. Otherwise the handshaker failed
    with the returned error.  */
 tsi_result tsi_handshaker_get_result(tsi_handshaker *self);
 
-/* Returns 1 if the handshake is in progress, 0 otherwise.  */
+/* TO BE DEPRECATED SOON.
+   Returns 1 if the handshake is in progress, 0 otherwise.  */
 #define tsi_handshaker_is_in_progress(h) \
   (tsi_handshaker_get_result((h)) == TSI_HANDSHAKE_IN_PROGRESS)
 
-/* This method may return TSI_FAILED_PRECONDITION if
+/* TO BE DEPRECATED SOON. Use tsi_handshaker_result_extract_peer instead.
+   This method may return TSI_FAILED_PRECONDITION if
    tsi_handshaker_is_in_progress returns 1, it returns TSI_OK otherwise
    assuming the handshaker is not in a fatal error state.
    The caller is responsible for destructing the peer.  */
 tsi_result tsi_handshaker_extract_peer(tsi_handshaker *self, tsi_peer *peer);
 
-/* This method creates a tsi_frame_protector object after the handshake phase
+/* TO BE DEPRECATED SOON. Use tsi_handshaker_result_create_frame_protector
+   instead.
+   This method creates a tsi_frame_protector object after the handshake phase
    is done. After this method has been called successfully, the only method
    that can be called on this object is Destroy.
    - max_output_protected_frame_size is an input/output parameter specifying the
@@ -342,10 +411,53 @@
     tsi_handshaker *self, size_t *max_output_protected_frame_size,
     tsi_frame_protector **protector);
 
+/* Callback function definition for tsi_handshaker_next.
+   - status indicates the status of the next operation.
+   - user_data is the argument to callback function passed from the caller.
+   - bytes_to_send is the data buffer to be sent to the peer.
+   - bytes_to_send_size is the size of data buffer to be sent to the peer.
+   - handshaker_result is the result of handshake when the handshake completes,
+     is NULL otherwise.  */
+typedef void (*tsi_handshaker_on_next_done_cb)(
+    tsi_result status, void *user_data, const unsigned char *bytes_to_send,
+    size_t bytes_to_send_size, tsi_handshaker_result *handshaker_result);
+
+/* Conduct a next step of the handshake.
+   - received_bytes is the buffer containing the data received from the peer.
+   - received_bytes_size is the size of the data received from the peer.
+   - bytes_to_send is the data buffer to be sent to the peer.
+   - bytes_to_send_size is the size of data buffer to be sent to the peer.
+   - handshaker_result is the result of handshake if the handshake completes.
+   - cb is the callback function defined above. It can be NULL for synchronous
+     TSI handshaker implementation.
+   - user_data is the argument to callback function passed from the caller.
+   This method returns TSI_ASYNC if the TSI handshaker implementation is
+   asynchronous, and in this case, the callback is guaranteed to run in another
+   thread owned by TSI. It returns TSI_OK if the handshake completes or if
+   there are data to send to the peer, otherwise returns TSI_INCOMPLETE_DATA
+   which indicates that this method needs to be called again with more data
+   from the peer. In case of a fatal error in the handshake, another specific
+   error code is returned.
+   The caller is responsible for destroying the handshaker_result. However,
+   the caller should not free bytes_to_send, as the buffer is owned by the
+   tsi_handshaker object.  */
+tsi_result tsi_handshaker_next(
+    tsi_handshaker *self, const unsigned char *received_bytes,
+    size_t received_bytes_size, unsigned char **bytes_to_send,
+    size_t *bytes_to_send_size, tsi_handshaker_result **handshaker_result,
+    tsi_handshaker_on_next_done_cb cb, void *user_data);
+
 /* This method releases the tsi_handshaker object. After this method is called,
    no other method can be called on the object.  */
 void tsi_handshaker_destroy(tsi_handshaker *self);
 
+/* This method initializes the necessary shared objects used for tsi
+   implementation.  */
+void tsi_init();
+
+/* This method destroys the shared objects created by tsi_init.  */
+void tsi_destroy();
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/cpp/common/core_codegen.cc b/src/cpp/common/core_codegen.cc
index 4f8b826..f679a33 100644
--- a/src/cpp/common/core_codegen.cc
+++ b/src/cpp/common/core_codegen.cc
@@ -54,6 +54,18 @@
 
 namespace grpc {
 
+const grpc_completion_queue_factory*
+CoreCodegen::grpc_completion_queue_factory_lookup(
+    const grpc_completion_queue_attributes* attributes) {
+  return ::grpc_completion_queue_factory_lookup(attributes);
+}
+
+grpc_completion_queue* CoreCodegen::grpc_completion_queue_create(
+    const grpc_completion_queue_factory* factory,
+    const grpc_completion_queue_attributes* attributes, void* reserved) {
+  return ::grpc_completion_queue_create(factory, attributes, reserved);
+}
+
 grpc_completion_queue* CoreCodegen::grpc_completion_queue_create_for_next(
     void* reserved) {
   return ::grpc_completion_queue_create_for_next(reserved);
diff --git a/src/cpp/server/server_builder.cc b/src/cpp/server/server_builder.cc
index 3a15afc..2ead048 100644
--- a/src/cpp/server/server_builder.cc
+++ b/src/cpp/server/server_builder.cc
@@ -83,7 +83,8 @@
 
 std::unique_ptr<ServerCompletionQueue> ServerBuilder::AddCompletionQueue(
     bool is_frequently_polled) {
-  ServerCompletionQueue* cq = new ServerCompletionQueue(is_frequently_polled);
+  ServerCompletionQueue* cq = new ServerCompletionQueue(
+      is_frequently_polled ? GRPC_CQ_DEFAULT_POLLING : GRPC_CQ_NON_LISTENING);
   cqs_.push_back(cq);
   return std::unique_ptr<ServerCompletionQueue>(cq);
 }
@@ -242,6 +243,16 @@
       sync_server_cqs(std::make_shared<
                       std::vector<std::unique_ptr<ServerCompletionQueue>>>());
 
+  int num_frequently_polled_cqs = 0;
+  for (auto it = cqs_.begin(); it != cqs_.end(); ++it) {
+    if ((*it)->IsFrequentlyPolled()) {
+      num_frequently_polled_cqs++;
+    }
+  }
+
+  const bool is_hybrid_server =
+      has_sync_methods && num_frequently_polled_cqs > 0;
+
   if (has_sync_methods) {
     // This is a Sync server
     gpr_log(GPR_INFO,
@@ -251,9 +262,12 @@
             sync_server_settings_.max_pollers,
             sync_server_settings_.cq_timeout_msec);
 
+    grpc_cq_polling_type polling_type =
+        is_hybrid_server ? GRPC_CQ_NON_POLLING : GRPC_CQ_DEFAULT_POLLING;
+
     // Create completion queues to listen to incoming rpc requests
     for (int i = 0; i < sync_server_settings_.num_cqs; i++) {
-      sync_server_cqs->emplace_back(new ServerCompletionQueue());
+      sync_server_cqs->emplace_back(new ServerCompletionQueue(polling_type));
     }
   }
 
@@ -269,12 +283,10 @@
   //     server
   //  2. cqs_: Completion queues added via AddCompletionQueue() call
 
-  // All sync cqs (if any) are frequently polled by ThreadManager
-  int num_frequently_polled_cqs = sync_server_cqs->size();
-
   for (auto it = sync_server_cqs->begin(); it != sync_server_cqs->end(); ++it) {
     grpc_server_register_completion_queue(server->server_, (*it)->cq(),
                                           nullptr);
+    num_frequently_polled_cqs++;
   }
 
   // cqs_ contains the completion queue added by calling the ServerBuilder's
@@ -283,14 +295,8 @@
   // listening to incoming channels. Such completion queues must be registered
   // as non-listening queues
   for (auto it = cqs_.begin(); it != cqs_.end(); ++it) {
-    if ((*it)->IsFrequentlyPolled()) {
-      grpc_server_register_completion_queue(server->server_, (*it)->cq(),
-                                            nullptr);
-      num_frequently_polled_cqs++;
-    } else {
-      grpc_server_register_non_listening_completion_queue(server->server_,
-                                                          (*it)->cq(), nullptr);
-    }
+    grpc_server_register_completion_queue(server->server_, (*it)->cq(),
+                                          nullptr);
   }
 
   if (num_frequently_polled_cqs == 0) {
diff --git a/src/node/ext/server_generic.cc b/src/node/ext/server_generic.cc
index 24573bd..088273d 100644
--- a/src/node/ext/server_generic.cc
+++ b/src/node/ext/server_generic.cc
@@ -44,9 +44,11 @@
 namespace node {
 
 Server::Server(grpc_server *server) : wrapped_server(server) {
-  shutdown_queue = grpc_completion_queue_create_for_pluck(NULL);
-  grpc_server_register_non_listening_completion_queue(server, shutdown_queue,
-                                                      NULL);
+  grpc_completion_queue_attributes attrs = {
+      GRPC_CQ_CURRENT_VERSION, GRPC_CQ_PLUCK, GRPC_CQ_NON_LISTENING};
+  shutdown_queue = grpc_completion_queue_create(
+      grpc_completion_queue_factory_lookup(&attrs), &attrs, NULL);
+  grpc_server_register_completion_queue(server, shutdown_queue, NULL);
 }
 
 Server::~Server() {
diff --git a/src/objective-c/GRPCClient/GRPCCall.h b/src/objective-c/GRPCClient/GRPCCall.h
index 7645bb1..5e9324c 100644
--- a/src/objective-c/GRPCClient/GRPCCall.h
+++ b/src/objective-c/GRPCClient/GRPCCall.h
@@ -253,6 +253,13 @@
  */
 + (void)setCallSafety:(GRPCCallSafety)callSafety host:(NSString *)host path:(NSString *)path;
 
+/**
+ * Set the dispatch queue to be used for callbacks.
+ *
+ * This configuration is only effective before the call starts.
+ */
+- (void)setResponseDispatchQueue:(dispatch_queue_t)queue;
+
 // TODO(jcanizales): Let specify a deadline. As a category of GRXWriter?
 @end
 
diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index 051138e..f9d13fe 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -113,6 +113,10 @@
   // the SendClose op is added.
   BOOL _unaryCall;
   NSMutableArray *_unaryOpBatch;
+
+  // The dispatch queue to be used for enqueuing responses to user. Defaulted to the main dispatch
+  // queue
+  dispatch_queue_t _responseQueue;
 }
 
 @synthesize state = _state;
@@ -175,10 +179,19 @@
       _unaryCall = YES;
       _unaryOpBatch = [NSMutableArray arrayWithCapacity:kMaxClientBatch];
     }
+
+    _responseQueue = dispatch_get_main_queue();
   }
   return self;
 }
 
+- (void)setResponseDispatchQueue:(dispatch_queue_t)queue {
+  if (_state != GRXWriterStateNotStarted) {
+    return;
+  }
+  _responseQueue = queue;
+}
+
 #pragma mark Finish
 
 - (void)finishWithError:(NSError *)errorOrNil {
@@ -424,7 +437,8 @@
   // that the life of the instance is determined by this retain cycle.
   _retainSelf = self;
 
-  _responseWriteable = [[GRXConcurrentWriteable alloc] initWithWriteable:writeable];
+  _responseWriteable = [[GRXConcurrentWriteable alloc] initWithWriteable:writeable
+                                                           dispatchQueue:_responseQueue];
 
   _wrappedCall = [[GRPCWrappedCall alloc] initWithHost:_host path:_path];
   NSAssert(_wrappedCall, @"Error allocating RPC objects. Low memory?");
diff --git a/src/objective-c/RxLibrary/GRXConcurrentWriteable.h b/src/objective-c/RxLibrary/GRXConcurrentWriteable.h
index b2775f9..07004f6 100644
--- a/src/objective-c/RxLibrary/GRXConcurrentWriteable.h
+++ b/src/objective-c/RxLibrary/GRXConcurrentWriteable.h
@@ -53,7 +53,9 @@
  * The GRXWriteable instance is retained until writesFinishedWithError: is sent to it, and released
  * after that.
  */
-- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable NS_DESIGNATED_INITIALIZER;
+- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable
+                    dispatchQueue:(dispatch_queue_t)queue NS_DESIGNATED_INITIALIZER;
+- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable;
 
 /**
  * Enqueues writeValue: to be sent to the writeable in the main thread.
diff --git a/src/objective-c/RxLibrary/GRXConcurrentWriteable.m b/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
index 08bd079..88aa7a7 100644
--- a/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
+++ b/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
@@ -51,14 +51,20 @@
 }
 
 // Designated initializer
-- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable {
+- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable
+                    dispatchQueue:(dispatch_queue_t)queue {
   if (self = [super init]) {
-    _writeableQueue = dispatch_get_main_queue();
+    _writeableQueue = queue;
     _writeable = writeable;
   }
   return self;
 }
 
+- (instancetype)initWithWriteable:(id<GRXWriteable>)writeable {
+  return [self initWithWriteable:writeable
+                   dispatchQueue:dispatch_get_main_queue()];
+}
+
 - (void)enqueueValue:(id)value completionHandler:(void (^)())handler {
   dispatch_async(_writeableQueue, ^{
     // We're racing a possible cancellation performed by another thread. To turn all already-
diff --git a/src/objective-c/tests/GRPCClientTests.m b/src/objective-c/tests/GRPCClientTests.m
index 76c1500..e36f5c3 100644
--- a/src/objective-c/tests/GRPCClientTests.m
+++ b/src/objective-c/tests/GRPCClientTests.m
@@ -353,4 +353,59 @@
   [self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
 }
 
+- (void)testAlternateDispatchQueue {
+  const int32_t kPayloadSize = 100;
+  RMTSimpleRequest *request = [RMTSimpleRequest message];
+  request.responseSize = kPayloadSize;
+
+  __weak XCTestExpectation *expectation1 = [self expectationWithDescription:@"AlternateDispatchQueue1"];
+
+  // Use default (main) dispatch queue
+  NSString *main_queue_label = [NSString stringWithUTF8String:dispatch_queue_get_label(dispatch_get_main_queue())];
+
+  GRXWriter *requestsWriter1 = [GRXWriter writerWithValue:[request data]];
+
+  GRPCCall *call1 = [[GRPCCall alloc] initWithHost:kHostAddress
+                                              path:kUnaryCallMethod.HTTPPath
+                                    requestsWriter:requestsWriter1];
+
+  id<GRXWriteable> responsesWriteable1 = [[GRXWriteable alloc] initWithValueHandler:^(NSData *value) {
+    NSString *label = [NSString stringWithUTF8String:dispatch_queue_get_label(DISPATCH_CURRENT_QUEUE_LABEL)];
+    XCTAssert([label isEqualToString:main_queue_label]);
+
+    [expectation1 fulfill];
+  } completionHandler:^(NSError *errorOrNil) {
+  }];
+
+  [call1 startWithWriteable:responsesWriteable1];
+
+  [self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
+
+  // Use a custom  queue
+  __weak XCTestExpectation *expectation2 = [self expectationWithDescription:@"AlternateDispatchQueue2"];
+
+  NSString *queue_label = @"test.queue1";
+  dispatch_queue_t queue = dispatch_queue_create([queue_label UTF8String], DISPATCH_QUEUE_SERIAL);
+
+  GRXWriter *requestsWriter2 = [GRXWriter writerWithValue:[request data]];
+
+  GRPCCall *call2 = [[GRPCCall alloc] initWithHost:kHostAddress
+                                              path:kUnaryCallMethod.HTTPPath
+                                    requestsWriter:requestsWriter2];
+
+  [call2 setResponseDispatchQueue:queue];
+
+  id<GRXWriteable> responsesWriteable2 = [[GRXWriteable alloc] initWithValueHandler:^(NSData *value) {
+    NSString *label = [NSString stringWithUTF8String:dispatch_queue_get_label(DISPATCH_CURRENT_QUEUE_LABEL)];
+    XCTAssert([label isEqualToString:queue_label]);
+
+    [expectation2 fulfill];
+  } completionHandler:^(NSError *errorOrNil) {
+  }];
+
+  [call2 startWithWriteable:responsesWriteable2];
+
+  [self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
+}
+
 @end
diff --git a/src/proto/grpc/health/v1/BUILD b/src/proto/grpc/health/v1/BUILD
new file mode 100644
index 0000000..dbb91d9
--- /dev/null
+++ b/src/proto/grpc/health/v1/BUILD
@@ -0,0 +1,39 @@
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+licenses(["notice"])  # 3-clause BSD
+
+package(default_visibility = ["//visibility:public"])
+
+load("//bazel:grpc_build_system.bzl", "grpc_proto_library")
+
+grpc_proto_library(
+    name = "health_proto",
+    srcs = ["health.proto"],
+)
diff --git a/src/proto/grpc/status/BUILD b/src/proto/grpc/status/BUILD
index c17f87e..71363bd 100644
--- a/src/proto/grpc/status/BUILD
+++ b/src/proto/grpc/status/BUILD
@@ -37,7 +37,5 @@
     name = "status_proto",
     srcs = ["status.proto"],
     has_services = False,
-    well_known_protos = "@submodule_protobuf//:well_known_protos",
+    well_known_protos = "@com_google_protobuf//:well_known_protos",
 )
-
-
diff --git a/src/proto/grpc/testing/BUILD b/src/proto/grpc/testing/BUILD
index 6f3422e..805988c 100644
--- a/src/proto/grpc/testing/BUILD
+++ b/src/proto/grpc/testing/BUILD
@@ -36,6 +36,7 @@
 grpc_proto_library(
     name = "compiler_test_proto",
     srcs = ["compiler_test.proto"],
+    generate_mock = True,
 )
 
 grpc_proto_library(
@@ -55,6 +56,7 @@
     name = "echo_proto",
     srcs = ["echo.proto"],
     deps = ["echo_messages_proto"],
+    generate_mock = True,
 )
 
 grpc_proto_library(
diff --git a/src/proto/grpc/testing/compiler_test.proto b/src/proto/grpc/testing/compiler_test.proto
index 085e8ae..2473552 100644
--- a/src/proto/grpc/testing/compiler_test.proto
+++ b/src/proto/grpc/testing/compiler_test.proto
@@ -59,6 +59,14 @@
   // Method A2 leading comment 2
   rpc MethodA2(stream Request) returns (Response);
   // MethodA2 trailing comment 1
+
+  // Method A3 leading comment 1
+  rpc MethodA3(Request) returns (stream Response);
+  // Method A3 trailing comment 1
+
+  // Method A4 leading comment 1
+  rpc MethodA4(stream Request) returns (stream Response);
+  // Method A4 trailing comment 1
 }
 // Ignored ServiceA trailing comment 1
 
diff --git a/src/python/grpcio/README.rst b/src/python/grpcio/README.rst
index 3fc3185..28a2714 100644
--- a/src/python/grpcio/README.rst
+++ b/src/python/grpcio/README.rst
@@ -6,7 +6,7 @@
 Installation
 ------------
 
-gRPC Python is available for Linux, Mac OS X, and Windows running Python 2.7.
+gRPC Python is available for Linux, macOS, and Windows.
 
 From PyPI
 ~~~~~~~~~
diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py
index e50ccbe..4f07280 100644
--- a/src/python/grpcio/commands.py
+++ b/src/python/grpcio/commands.py
@@ -260,12 +260,36 @@
     """Custom build_ext command to enable compiler-specific flags."""
 
     C_OPTIONS = {
-        'unix': ('-pthread', '-std=gnu99'),
+        'unix': ('-pthread',),
         'msvc': (),
     }
     LINK_OPTIONS = {}
 
     def build_extensions(self):
+        if "darwin" in sys.platform:
+            config = os.environ.get('CONFIG', 'opt')
+            target_path = os.path.abspath(
+                os.path.join(
+                    os.path.dirname(os.path.realpath(__file__)), '..', '..',
+                    '..', 'libs', config))
+            targets = [
+                os.path.join(target_path, 'libboringssl.a'),
+                os.path.join(target_path, 'libares.a'),
+                os.path.join(target_path, 'libgpr.a'),
+                os.path.join(target_path, 'libgrpc.a')
+            ]
+            make_process = subprocess.Popen(
+                ['make'] + targets,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE)
+            make_out, make_err = make_process.communicate()
+            if make_out and make_process.returncode != 0:
+                sys.stdout.write(make_out + '\n')
+            if make_err:
+                sys.stderr.write(make_err + '\n')
+            if make_process.returncode != 0:
+                raise Exception("make command failed!")
+
         compiler = self.compiler.compiler_type
         if compiler in BuildExt.C_OPTIONS:
             for extension in self.extensions:
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
index 4f1776e..f66f6e4 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
@@ -356,8 +356,6 @@
   void grpc_server_register_completion_queue(grpc_server *server,
                                              grpc_completion_queue *cq,
                                              void *reserved) nogil
-  void grpc_server_register_non_listening_completion_queue(
-      grpc_server *server, grpc_completion_queue *cq, void *reserved) nogil
   int grpc_server_add_insecure_http2_port(
       grpc_server *server, const char *addr) nogil
   void grpc_server_start(grpc_server *server) nogil
@@ -502,4 +500,3 @@
   int grpc_compression_options_is_algorithm_enabled(
       const grpc_compression_options *opts,
       grpc_compression_algorithm algorithm) nogil
-
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi
index 18db38b..97192ef 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi
@@ -82,20 +82,11 @@
           self.c_server, queue.c_completion_queue, NULL)
     self.registered_completion_queues.append(queue)
 
-  def register_non_listening_completion_queue(
-      self, CompletionQueue queue not None):
-    if self.is_started:
-      raise ValueError("cannot register completion queues after start")
-    with nogil:
-      grpc_server_register_non_listening_completion_queue(
-          self.c_server, queue.c_completion_queue, NULL)
-    self.registered_completion_queues.append(queue)
-
   def start(self):
     if self.is_started:
       raise ValueError("the server has already started")
     self.backup_shutdown_queue = CompletionQueue()
-    self.register_non_listening_completion_queue(self.backup_shutdown_queue)
+    self.register_completion_queue(self.backup_shutdown_queue)
     self.is_started = True
     with nogil:
       grpc_server_start(self.c_server)
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 16bb32b..d2a570c 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -179,7 +179,7 @@
   'src/core/lib/surface/completion_queue.c',
   'src/core/lib/surface/completion_queue_factory.c',
   'src/core/lib/surface/event_string.c',
-  'src/core/lib/surface/lame_client.c',
+  'src/core/lib/surface/lame_client.cc',
   'src/core/lib/surface/metadata_array.c',
   'src/core/lib/surface/server.c',
   'src/core/lib/surface/validate_metadata.c',
@@ -251,6 +251,7 @@
   'src/core/tsi/fake_transport_security.c',
   'src/core/tsi/ssl_transport_security.c',
   'src/core/tsi/transport_security.c',
+  'src/core/tsi/transport_security_adapter.c',
   'src/core/ext/transport/chttp2/server/chttp2_server.c',
   'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
   'src/core/ext/filters/client_channel/channel_connectivity.c',
diff --git a/src/python/grpcio_tests/tests/http2/negative_http2_client.py b/src/python/grpcio_tests/tests/http2/negative_http2_client.py
index b184e62..90f54e8 100644
--- a/src/python/grpcio_tests/tests/http2/negative_http2_client.py
+++ b/src/python/grpcio_tests/tests/http2/negative_http2_client.py
@@ -96,8 +96,6 @@
 
 def _rst_after_data(stub):
     resp_future = stub.UnaryCall.future(_SIMPLE_REQUEST)
-    _validate_payload_type_and_length(
-        next(resp_future), messages_pb2.COMPRESSABLE, _RESPONSE_SIZE)
     _validate_status_code_and_details(resp_future, grpc.StatusCode.INTERNAL,
                                       "Received RST_STREAM with error code 0")
 
diff --git a/src/ruby/ext/grpc/extconf.rb b/src/ruby/ext/grpc/extconf.rb
index 7067933..6c0486f 100644
--- a/src/ruby/ext/grpc/extconf.rb
+++ b/src/ruby/ext/grpc/extconf.rb
@@ -65,6 +65,7 @@
 
 ENV['AR'] = RbConfig::CONFIG['AR'] + ' rcs'
 ENV['CC'] = RbConfig::CONFIG['CC']
+ENV['CXX'] = RbConfig::CONFIG['CXX']
 ENV['LD'] = ENV['CC']
 
 ENV['AR'] = 'libtool -o' if RUBY_PLATFORM =~ /darwin/
@@ -84,7 +85,7 @@
   puts 'Building internal gRPC into ' + grpc_lib_dir
   nproc = 4
   nproc = Etc.nprocessors * 2 if Etc.respond_to? :nprocessors
-  system("make -j#{nproc} -C #{grpc_root} #{grpc_lib_dir}/libgrpc.a CONFIG=#{grpc_config}")
+  system("make -j#{nproc} -C #{grpc_root} #{grpc_lib_dir}/libgrpc.a CONFIG=#{grpc_config} Q=")
   exit 1 unless $? == 0
 end
 
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.c b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
index d11f7f6..221a1e1 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.c
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
@@ -127,7 +127,6 @@
 grpc_server_request_registered_call_type grpc_server_request_registered_call_import;
 grpc_server_create_type grpc_server_create_import;
 grpc_server_register_completion_queue_type grpc_server_register_completion_queue_import;
-grpc_server_register_non_listening_completion_queue_type grpc_server_register_non_listening_completion_queue_import;
 grpc_server_add_insecure_http2_port_type grpc_server_add_insecure_http2_port_import;
 grpc_server_start_type grpc_server_start_import;
 grpc_server_shutdown_and_notify_type grpc_server_shutdown_and_notify_import;
@@ -429,7 +428,6 @@
   grpc_server_request_registered_call_import = (grpc_server_request_registered_call_type) GetProcAddress(library, "grpc_server_request_registered_call");
   grpc_server_create_import = (grpc_server_create_type) GetProcAddress(library, "grpc_server_create");
   grpc_server_register_completion_queue_import = (grpc_server_register_completion_queue_type) GetProcAddress(library, "grpc_server_register_completion_queue");
-  grpc_server_register_non_listening_completion_queue_import = (grpc_server_register_non_listening_completion_queue_type) GetProcAddress(library, "grpc_server_register_non_listening_completion_queue");
   grpc_server_add_insecure_http2_port_import = (grpc_server_add_insecure_http2_port_type) GetProcAddress(library, "grpc_server_add_insecure_http2_port");
   grpc_server_start_import = (grpc_server_start_type) GetProcAddress(library, "grpc_server_start");
   grpc_server_shutdown_and_notify_import = (grpc_server_shutdown_and_notify_type) GetProcAddress(library, "grpc_server_shutdown_and_notify");
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.h b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
index dc50b87..f62b31e 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.h
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
@@ -332,9 +332,6 @@
 typedef void(*grpc_server_register_completion_queue_type)(grpc_server *server, grpc_completion_queue *cq, void *reserved);
 extern grpc_server_register_completion_queue_type grpc_server_register_completion_queue_import;
 #define grpc_server_register_completion_queue grpc_server_register_completion_queue_import
-typedef void(*grpc_server_register_non_listening_completion_queue_type)(grpc_server *server, grpc_completion_queue *q, void *reserved);
-extern grpc_server_register_non_listening_completion_queue_type grpc_server_register_non_listening_completion_queue_import;
-#define grpc_server_register_non_listening_completion_queue grpc_server_register_non_listening_completion_queue_import
 typedef int(*grpc_server_add_insecure_http2_port_type)(grpc_server *server, const char *addr);
 extern grpc_server_add_insecure_http2_port_type grpc_server_add_insecure_http2_port_import;
 #define grpc_server_add_insecure_http2_port grpc_server_add_insecure_http2_port_import
diff --git a/templates/CMakeLists.txt.template b/templates/CMakeLists.txt.template
index 88e518f..2252a7e 100644
--- a/templates/CMakeLists.txt.template
+++ b/templates/CMakeLists.txt.template
@@ -361,10 +361,11 @@
       add_custom_command(
         OUTPUT <%text>"${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc"</%text>
                <%text>"${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h"</%text>
+               <%text>"${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}_mock.grpc.pb.h"</%text>
                <%text>"${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc"</%text>
                <%text>"${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h"</%text>
         COMMAND <%text>${_gRPC_PROTOBUF_PROTOC}</%text>
-        ARGS --grpc_out=<%text>${_gRPC_PROTO_GENS_DIR}</%text>
+        ARGS --grpc_out=<%text>generate_mock_code=true:${_gRPC_PROTO_GENS_DIR}</%text>
              --cpp_out=<%text>${_gRPC_PROTO_GENS_DIR}</%text>
              --plugin=protoc-gen-grpc=$<TARGET_FILE:grpc_cpp_plugin>
              <%text>${_protobuf_include_path}</%text>
@@ -374,7 +375,7 @@
         COMMENT "Running gRPC C++ protocol buffer compiler on <%text>${FIL}</%text>"
         VERBATIM)
 
-        <%text>set_source_files_properties("${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h" PROPERTIES GENERATED TRUE)</%text>
+        <%text>set_source_files_properties("${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.grpc.pb.h"  "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}_mock.grpc.pb.h" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.cc" "${_gRPC_PROTO_GENS_DIR}/${RELFIL_WE}.pb.h" PROPERTIES GENERATED TRUE)</%text>
     endforeach()
   endfunction()
 
@@ -475,6 +476,9 @@
     ${proto_replace_ext(src, '.grpc.pb.cc')}
     ${proto_replace_ext(src, '.pb.h')}
     ${proto_replace_ext(src, '.grpc.pb.h')}
+    % if src in ["src/proto/grpc/testing/compiler_test.proto", "src/proto/grpc/testing/echo.proto"]:
+    ${proto_replace_ext(src, '_mock.grpc.pb.h')}
+    % endif
   % endif
   % endfor
   )
@@ -514,6 +518,8 @@
   % if lib.build in ['test', 'private'] and lib.language == 'c++':
     PRIVATE third_party/googletest/googletest/include
     PRIVATE third_party/googletest/googletest
+    PRIVATE third_party/googletest/googlemock/include
+    PRIVATE third_party/googletest/googlemock
   % endif
   % if lib.language == 'c++':
     PRIVATE <%text>${_gRPC_PROTO_GENS_DIR}</%text>
@@ -557,6 +563,7 @@
   % endfor
   % if tgt.build == 'test' and tgt.language == 'c++':
     third_party/googletest/googletest/src/gtest-all.cc
+    third_party/googletest/googlemock/src/gmock-all.cc
   % endif
   )
 
@@ -584,6 +591,8 @@
   % if tgt.build in ['test', 'private'] and tgt.language == 'c++':
     PRIVATE third_party/googletest/googletest/include
     PRIVATE third_party/googletest/googletest
+    PRIVATE third_party/googletest/googlemock/include
+    PRIVATE third_party/googletest/googlemock
   % endif
   % if tgt.language == 'c++':
     PRIVATE <%text>${_gRPC_PROTO_GENS_DIR}</%text>
diff --git a/templates/Makefile.template b/templates/Makefile.template
index 1e6ca93..5ce606f 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -311,7 +311,7 @@
   USE_BUILT_PROTOC = false
   endif
 
-  GTEST_LIB = -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googletest third_party/googletest/googletest/src/gtest-all.cc
+  GTEST_LIB = -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googletest third_party/googletest/googletest/src/gtest-all.cc -Ithird_party/googletest/googlemock/include -Ithird_party/googletest/googlemock third_party/googletest/googlemock/src/gmock-all.cc
   GTEST_LIB += -lgflags
   ifeq ($(V),1)
   E = @:
@@ -716,7 +716,7 @@
   PC_REQUIRES_GRPCXX =
   PC_LIBS_GRPCXX =
 
-  CPPFLAGS := -Ithird_party/googletest/googletest/include $(CPPFLAGS)
+  CPPFLAGS := -Ithird_party/googletest/googletest/include -Ithird_party/googletest/googlemock/include $(CPPFLAGS)
 
   PROTOC_PLUGINS_ALL =\
   % for tgt in targets:
@@ -1240,6 +1240,14 @@
   $(GENDIR)/${p}.pb.cc: protoc_dep_error
   $(GENDIR)/${p}.grpc.pb.cc: protoc_dep_error
   else
+  <%
+    pluginflags=""
+  %>
+  % if p in ["src/proto/grpc/testing/compiler_test", "src/proto/grpc/testing/echo"]:
+  <%
+    pluginflags="generate_mock_code=true:"
+  %>
+  % endif
   $(GENDIR)/${p}.pb.cc: ${p}.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) ${' '.join('$(GENDIR)/%s.pb.cc' % q for q in proto_deps.get(p, []))}
   	$(E) "[PROTOC]  Generating protobuf CC file from $<"
   	$(Q) mkdir -p `dirname $@`
@@ -1248,7 +1256,7 @@
   $(GENDIR)/${p}.grpc.pb.cc: ${p}.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS) ${' '.join('$(GENDIR)/%s.pb.cc $(GENDIR)/%s.grpc.pb.cc' % (q,q) for q in proto_deps.get(p, []))}
   	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
   	$(Q) mkdir -p `dirname $@`
-  	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
+  	$(Q) $(PROTOC) -Ithird_party/protobuf/src -I. --grpc_out=${pluginflags}$(GENDIR) --plugin=protoc-gen-grpc=$(PROTOC_PLUGINS_DIR)/grpc_cpp_plugin$(EXECUTABLE_SUFFIX) $<
   endif
 
   % endfor
diff --git a/templates/tools/run_tests/generated/sources_and_headers.json.template b/templates/tools/run_tests/generated/sources_and_headers.json.template
index 1c5c974..c7dc3c8 100644
--- a/templates/tools/run_tests/generated/sources_and_headers.json.template
+++ b/templates/tools/run_tests/generated/sources_and_headers.json.template
@@ -9,7 +9,7 @@
     for f in src:
       name, ext = os.path.splitext(f)
       if ext == '.proto':
-        out.extend(fmt % name for fmt in ['%s.grpc.pb.h', '%s.pb.h'])
+        out.extend(fmt % name for fmt in ['%s.grpc.pb.h', '%s.pb.h', '%s_mock.grpc.pb.h'])
     return out
 
   def all_targets(targets, libs, filegroups):
diff --git a/test/core/end2end/fixtures/http_proxy_fixture.c b/test/core/end2end/fixtures/http_proxy_fixture.c
index 451ed26..f0d0948 100644
--- a/test/core/end2end/fixtures/http_proxy_fixture.c
+++ b/test/core/end2end/fixtures/http_proxy_fixture.c
@@ -59,6 +59,7 @@
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/iomgr/tcp_client.h"
 #include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/timer.h"
 #include "src/core/lib/slice/slice_internal.h"
 #include "test/core/util/port.h"
 
@@ -69,7 +70,7 @@
   grpc_channel_args* channel_args;
   gpr_mu* mu;
   grpc_pollset* pollset;
-  gpr_atm shutdown;
+  gpr_refcount users;
 };
 
 //
@@ -77,6 +78,8 @@
 //
 
 typedef struct proxy_connection {
+  grpc_end2end_http_proxy* proxy;
+
   grpc_endpoint* client_endpoint;
   grpc_endpoint* server_endpoint;
 
@@ -103,13 +106,20 @@
   grpc_http_request http_request;
 } proxy_connection;
 
+static void proxy_connection_ref(proxy_connection* conn, const char* reason) {
+  gpr_ref(&conn->refcount);
+}
+
 // Helper function to destroy the proxy connection.
 static void proxy_connection_unref(grpc_exec_ctx* exec_ctx,
-                                   proxy_connection* conn) {
+                                   proxy_connection* conn, const char* reason) {
   if (gpr_unref(&conn->refcount)) {
+    gpr_log(GPR_DEBUG, "endpoints: %p %p", conn->client_endpoint,
+            conn->server_endpoint);
     grpc_endpoint_destroy(exec_ctx, conn->client_endpoint);
-    if (conn->server_endpoint != NULL)
+    if (conn->server_endpoint != NULL) {
       grpc_endpoint_destroy(exec_ctx, conn->server_endpoint);
+    }
     grpc_pollset_set_destroy(exec_ctx, conn->pollset_set);
     grpc_slice_buffer_destroy_internal(exec_ctx, &conn->client_read_buffer);
     grpc_slice_buffer_destroy_internal(exec_ctx,
@@ -121,6 +131,7 @@
     grpc_slice_buffer_destroy_internal(exec_ctx, &conn->server_write_buffer);
     grpc_http_parser_destroy(&conn->http_parser);
     grpc_http_request_destroy(&conn->http_request);
+    gpr_unref(&conn->proxy->users);
     gpr_free(conn);
   }
 }
@@ -139,7 +150,7 @@
     grpc_endpoint_shutdown(exec_ctx, conn->server_endpoint,
                            GRPC_ERROR_REF(error));
   }
-  proxy_connection_unref(exec_ctx, conn);
+  proxy_connection_unref(exec_ctx, conn, "conn_failed");
 }
 
 // Callback for writing proxy data to the client.
@@ -163,7 +174,7 @@
                         &conn->on_client_write_done);
   } else {
     // No more writes.  Unref the connection.
-    proxy_connection_unref(exec_ctx, conn);
+    proxy_connection_unref(exec_ctx, conn, "write_done");
   }
 }
 
@@ -188,7 +199,7 @@
                         &conn->on_server_write_done);
   } else {
     // No more writes.  Unref the connection.
-    proxy_connection_unref(exec_ctx, conn);
+    proxy_connection_unref(exec_ctx, conn, "server_write");
   }
 }
 
@@ -214,7 +225,7 @@
   } else {
     grpc_slice_buffer_move_into(&conn->client_read_buffer,
                                 &conn->server_write_buffer);
-    gpr_ref(&conn->refcount);
+    proxy_connection_ref(conn, "client_read");
     grpc_endpoint_write(exec_ctx, conn->server_endpoint,
                         &conn->server_write_buffer,
                         &conn->on_server_write_done);
@@ -246,7 +257,7 @@
   } else {
     grpc_slice_buffer_move_into(&conn->server_read_buffer,
                                 &conn->client_write_buffer);
-    gpr_ref(&conn->refcount);
+    proxy_connection_ref(conn, "server_read");
     grpc_endpoint_write(exec_ctx, conn->client_endpoint,
                         &conn->client_write_buffer,
                         &conn->on_client_write_done);
@@ -270,7 +281,9 @@
   // Start reading from both client and server.  One of the read
   // requests inherits our ref to conn, but we need to take a new ref
   // for the other one.
-  gpr_ref(&conn->refcount);
+  proxy_connection_ref(conn, "client_read");
+  proxy_connection_ref(conn, "server_read");
+  proxy_connection_unref(exec_ctx, conn, "write_response");
   grpc_endpoint_read(exec_ctx, conn->client_endpoint, &conn->client_read_buffer,
                      &conn->on_client_read_done);
   grpc_endpoint_read(exec_ctx, conn->server_endpoint, &conn->server_read_buffer,
@@ -312,6 +325,8 @@
 static void on_read_request_done(grpc_exec_ctx* exec_ctx, void* arg,
                                  grpc_error* error) {
   proxy_connection* conn = arg;
+  gpr_log(GPR_DEBUG, "on_read_request_done: %p %s", conn,
+          grpc_error_string(error));
   if (error != GRPC_ERROR_NONE) {
     proxy_connection_failed(exec_ctx, conn, true /* is_client */,
                             "HTTP proxy read request", error);
@@ -376,12 +391,14 @@
   gpr_free(acceptor);
   grpc_end2end_http_proxy* proxy = arg;
   // Instantiate proxy_connection.
-  proxy_connection* conn = gpr_malloc(sizeof(*conn));
-  memset(conn, 0, sizeof(*conn));
+  proxy_connection* conn = gpr_zalloc(sizeof(*conn));
+  gpr_ref(&proxy->users);
   conn->client_endpoint = endpoint;
+  conn->proxy = proxy;
   gpr_ref_init(&conn->refcount, 1);
   conn->pollset_set = grpc_pollset_set_create();
   grpc_pollset_set_add_pollset(exec_ctx, conn->pollset_set, proxy->pollset);
+  grpc_endpoint_add_to_pollset_set(exec_ctx, endpoint, conn->pollset_set);
   grpc_closure_init(&conn->on_read_request_done, on_read_request_done, conn,
                     grpc_schedule_on_exec_ctx);
   grpc_closure_init(&conn->on_server_connect_done, on_server_connect_done, conn,
@@ -416,6 +433,7 @@
   grpc_end2end_http_proxy* proxy = arg;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   do {
+    gpr_ref(&proxy->users);
     const gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
     const gpr_timespec deadline =
         gpr_time_add(now, gpr_time_from_seconds(1, GPR_TIMESPAN));
@@ -426,7 +444,7 @@
         grpc_pollset_work(&exec_ctx, proxy->pollset, &worker, now, deadline));
     gpr_mu_unlock(proxy->mu);
     grpc_exec_ctx_flush(&exec_ctx);
-  } while (!gpr_atm_acq_load(&proxy->shutdown));
+  } while (!gpr_unref(&proxy->users));
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
@@ -434,6 +452,7 @@
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_end2end_http_proxy* proxy = gpr_malloc(sizeof(*proxy));
   memset(proxy, 0, sizeof(*proxy));
+  gpr_ref_init(&proxy->users, 1);
   // Construct proxy address.
   const int proxy_port = grpc_pick_unused_port_or_die();
   gpr_join_host_port(&proxy->proxy_name, "localhost", proxy_port);
@@ -474,17 +493,16 @@
 }
 
 void grpc_end2end_http_proxy_destroy(grpc_end2end_http_proxy* proxy) {
-  gpr_atm_rel_store(&proxy->shutdown, 1);  // Signal proxy thread to shutdown.
+  gpr_unref(&proxy->users);  // Signal proxy thread to shutdown.
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   gpr_thd_join(proxy->thd);
   grpc_tcp_server_shutdown_listeners(&exec_ctx, proxy->server);
   grpc_tcp_server_unref(&exec_ctx, proxy->server);
   gpr_free(proxy->proxy_name);
   grpc_channel_args_destroy(&exec_ctx, proxy->channel_args);
-  grpc_closure destroyed;
-  grpc_closure_init(&destroyed, destroy_pollset, proxy->pollset,
-                    grpc_schedule_on_exec_ctx);
-  grpc_pollset_shutdown(&exec_ctx, proxy->pollset, &destroyed);
+  grpc_pollset_shutdown(&exec_ctx, proxy->pollset,
+                        grpc_closure_create(destroy_pollset, proxy->pollset,
+                                            grpc_schedule_on_exec_ctx));
   gpr_free(proxy);
   grpc_exec_ctx_finish(&exec_ctx);
 }
diff --git a/test/core/end2end/fuzzers/api_fuzzer_corpus/clusterfuzz-testcase-minimized-5175380371570688 b/test/core/end2end/fuzzers/api_fuzzer_corpus/clusterfuzz-testcase-minimized-5175380371570688
new file mode 100644
index 0000000..9c7aebc
--- /dev/null
+++ b/test/core/end2end/fuzzers/api_fuzzer_corpus/clusterfuzz-testcase-minimized-5175380371570688
Binary files differ
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index f2aca73..5bc9ed2 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -49,11 +49,12 @@
 static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
                                             const char *test_name,
                                             cancellation_mode mode,
+                                            size_t test_ops,
                                             grpc_channel_args *client_args,
                                             grpc_channel_args *server_args) {
   grpc_end2end_test_fixture f;
-  gpr_log(GPR_INFO, "Running test: %s/%s/%s", test_name, config.name,
-          mode.name);
+  gpr_log(GPR_INFO, "Running test: %s/%s/%s [%" PRIdPTR " ops]", test_name,
+          config.name, mode.name, test_ops);
   f = config.create_fixture(client_args, server_args);
   config.init_server(&f, server_args);
   config.init_client(&f, client_args);
@@ -108,8 +109,8 @@
   grpc_op ops[6];
   grpc_op *op;
   grpc_call *c;
-  grpc_end2end_test_fixture f =
-      begin_test(config, "test_cancel_after_invoke", mode, NULL, NULL);
+  grpc_end2end_test_fixture f = begin_test(config, "test_cancel_after_invoke",
+                                           mode, test_ops, NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
diff --git a/test/core/end2end/tests/resource_quota_server.c b/test/core/end2end/tests/resource_quota_server.c
index 2453ca1..6418f5d 100644
--- a/test/core/end2end/tests/resource_quota_server.c
+++ b/test/core/end2end/tests/resource_quota_server.c
@@ -169,6 +169,7 @@
   int cancelled_calls_on_client = 0;
   int cancelled_calls_on_server = 0;
   int deadline_exceeded = 0;
+  int unavailable = 0;
 
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
@@ -260,6 +261,9 @@
         case GRPC_STATUS_DEADLINE_EXCEEDED:
           deadline_exceeded++;
           break;
+        case GRPC_STATUS_UNAVAILABLE:
+          unavailable++;
+          break;
         case GRPC_STATUS_OK:
           break;
         default:
@@ -358,9 +362,9 @@
 
   gpr_log(GPR_INFO,
           "Done. %d total calls: %d cancelled at server, %d cancelled at "
-          "client, %d timed out.",
+          "client, %d timed out, %d unavailable.",
           NUM_CALLS, cancelled_calls_on_server, cancelled_calls_on_client,
-          deadline_exceeded);
+          deadline_exceeded, unavailable);
 
   grpc_byte_buffer_destroy(request_payload);
   grpc_slice_unref(request_payload_slice);
diff --git a/test/core/slice/BUILD b/test/core/slice/BUILD
index 4d64d0a..18cf6f6 100644
--- a/test/core/slice/BUILD
+++ b/test/core/slice/BUILD
@@ -47,13 +47,34 @@
 )
 
 cc_test(
-    name = "slice_buffer_test",
+    name = "slice_test",
+    srcs = ["slice_test.c"],
+    deps = ["//:grpc", "//test/core/util:grpc_test_util", "//:gpr", "//test/core/util:gpr_test_util"],
+    copts = ['-std=c99']
+)
+
+cc_test(
+    name = "slice_string_helpers_test",
     srcs = ["slice_string_helpers_test.c"],
     deps = ["//:grpc", "//test/core/util:grpc_test_util", "//:gpr", "//test/core/util:gpr_test_util"],
     copts = ['-std=c99']
 )
 
 cc_test(
+    name = "slice_buffer_test",
+    srcs = ["slice_buffer_test.c"],
+    deps = ["//:grpc", "//test/core/util:grpc_test_util", "//:gpr", "//test/core/util:gpr_test_util"],
+    copts = ['-std=c99']
+)
+
+cc_test(
+    name = "slice_hash_table_test",
+    srcs = ["slice_hash_table_test.c"],
+    deps = ["//:grpc", "//test/core/util:grpc_test_util", "//:gpr", "//test/core/util:gpr_test_util"],
+    copts = ['-std=c99']
+)
+
+cc_test(
     name = "b64_test",
     srcs = ["b64_test.c"],
     deps = ["//:grpc", "//test/core/util:grpc_test_util", "//:gpr", "//test/core/util:gpr_test_util"],
diff --git a/test/core/slice/slice_hash_table_test.c b/test/core/slice/slice_hash_table_test.c
new file mode 100644
index 0000000..67041b2
--- /dev/null
+++ b/test/core/slice/slice_hash_table_test.c
@@ -0,0 +1,138 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/slice/slice_hash_table.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/slice/slice_internal.h"
+#include "test/core/util/test_config.h"
+
+typedef struct {
+  char* key;
+  char* value;
+} test_entry;
+
+static void populate_entries(const test_entry* input, size_t num_entries,
+                             grpc_slice_hash_table_entry* output) {
+  for (size_t i = 0; i < num_entries; ++i) {
+    output[i].key = grpc_slice_from_copied_string(input[i].key);
+    output[i].value = gpr_strdup(input[i].value);
+  }
+}
+
+static void check_values(const test_entry* input, size_t num_entries,
+                         grpc_slice_hash_table* table) {
+  for (size_t i = 0; i < num_entries; ++i) {
+    grpc_slice key = grpc_slice_from_static_string(input[i].key);
+    char* actual = grpc_slice_hash_table_get(table, key);
+    GPR_ASSERT(actual != NULL);
+    GPR_ASSERT(strcmp(actual, input[i].value) == 0);
+    grpc_slice_unref(key);
+  }
+}
+
+static void check_non_existent_value(const char* key_string,
+                                     grpc_slice_hash_table* table) {
+  grpc_slice key = grpc_slice_from_static_string(key_string);
+  GPR_ASSERT(grpc_slice_hash_table_get(table, key) == NULL);
+  grpc_slice_unref(key);
+}
+
+static void destroy_string(grpc_exec_ctx* exec_ctx, void* value) {
+  gpr_free(value);
+}
+
+static void test_slice_hash_table() {
+  const test_entry test_entries[] = {
+      {"key_0", "value_0"},   {"key_1", "value_1"},   {"key_2", "value_2"},
+      {"key_3", "value_3"},   {"key_4", "value_4"},   {"key_5", "value_5"},
+      {"key_6", "value_6"},   {"key_7", "value_7"},   {"key_8", "value_8"},
+      {"key_9", "value_9"},   {"key_10", "value_10"}, {"key_11", "value_11"},
+      {"key_12", "value_12"}, {"key_13", "value_13"}, {"key_14", "value_14"},
+      {"key_15", "value_15"}, {"key_16", "value_16"}, {"key_17", "value_17"},
+      {"key_18", "value_18"}, {"key_19", "value_19"}, {"key_20", "value_20"},
+      {"key_21", "value_21"}, {"key_22", "value_22"}, {"key_23", "value_23"},
+      {"key_24", "value_24"}, {"key_25", "value_25"}, {"key_26", "value_26"},
+      {"key_27", "value_27"}, {"key_28", "value_28"}, {"key_29", "value_29"},
+      {"key_30", "value_30"}, {"key_31", "value_31"}, {"key_32", "value_32"},
+      {"key_33", "value_33"}, {"key_34", "value_34"}, {"key_35", "value_35"},
+      {"key_36", "value_36"}, {"key_37", "value_37"}, {"key_38", "value_38"},
+      {"key_39", "value_39"}, {"key_40", "value_40"}, {"key_41", "value_41"},
+      {"key_42", "value_42"}, {"key_43", "value_43"}, {"key_44", "value_44"},
+      {"key_45", "value_45"}, {"key_46", "value_46"}, {"key_47", "value_47"},
+      {"key_48", "value_48"}, {"key_49", "value_49"}, {"key_50", "value_50"},
+      {"key_51", "value_51"}, {"key_52", "value_52"}, {"key_53", "value_53"},
+      {"key_54", "value_54"}, {"key_55", "value_55"}, {"key_56", "value_56"},
+      {"key_57", "value_57"}, {"key_58", "value_58"}, {"key_59", "value_59"},
+      {"key_60", "value_60"}, {"key_61", "value_61"}, {"key_62", "value_62"},
+      {"key_63", "value_63"}, {"key_64", "value_64"}, {"key_65", "value_65"},
+      {"key_66", "value_66"}, {"key_67", "value_67"}, {"key_68", "value_68"},
+      {"key_69", "value_69"}, {"key_70", "value_70"}, {"key_71", "value_71"},
+      {"key_72", "value_72"}, {"key_73", "value_73"}, {"key_74", "value_74"},
+      {"key_75", "value_75"}, {"key_76", "value_76"}, {"key_77", "value_77"},
+      {"key_78", "value_78"}, {"key_79", "value_79"}, {"key_80", "value_80"},
+      {"key_81", "value_81"}, {"key_82", "value_82"}, {"key_83", "value_83"},
+      {"key_84", "value_84"}, {"key_85", "value_85"}, {"key_86", "value_86"},
+      {"key_87", "value_87"}, {"key_88", "value_88"}, {"key_89", "value_89"},
+      {"key_90", "value_90"}, {"key_91", "value_91"}, {"key_92", "value_92"},
+      {"key_93", "value_93"}, {"key_94", "value_94"}, {"key_95", "value_95"},
+      {"key_96", "value_96"}, {"key_97", "value_97"}, {"key_98", "value_98"},
+      {"key_99", "value_99"},
+  };
+  const size_t num_entries = GPR_ARRAY_SIZE(test_entries);
+  // Construct table.
+  grpc_slice_hash_table_entry* entries =
+      gpr_zalloc(sizeof(*entries) * num_entries);
+  populate_entries(test_entries, num_entries, entries);
+  grpc_slice_hash_table* table =
+      grpc_slice_hash_table_create(num_entries, entries, destroy_string);
+  gpr_free(entries);
+  // Check contents of table.
+  check_values(test_entries, num_entries, table);
+  check_non_existent_value("XX", table);
+  // Clean up.
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_slice_hash_table_unref(&exec_ctx, table);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  test_slice_hash_table();
+  return 0;
+}
diff --git a/test/core/support/memory_test.cc b/test/core/support/memory_test.cc
new file mode 100644
index 0000000..8db316a
--- /dev/null
+++ b/test/core/support/memory_test.cc
@@ -0,0 +1,89 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/support/memory.h"
+#include <gtest/gtest.h>
+#include "test/core/util/test_config.h"
+
+namespace grpc_core {
+namespace testing {
+
+struct Foo {
+  Foo(int p, int q) : a(p), b(q) {}
+  int a;
+  int b;
+};
+
+TEST(MemoryTest, NewDeleteTest) { Delete(New<int>()); }
+
+TEST(MemoryTest, NewDeleteWithArgTest) {
+  int* i = New<int>(42);
+  EXPECT_EQ(42, *i);
+  Delete(i);
+}
+
+TEST(MemoryTest, NewDeleteWithArgsTest) {
+  Foo* p = New<Foo>(1, 2);
+  EXPECT_EQ(1, p->a);
+  EXPECT_EQ(2, p->b);
+  Delete(p);
+}
+
+TEST(MemoryTest, MakeUniqueTest) { MakeUnique<int>(); }
+
+TEST(MemoryTest, MakeUniqueWithArgTest) {
+  auto i = MakeUnique<int>(42);
+  EXPECT_EQ(42, *i);
+}
+
+TEST(MemoryTest, UniquePtrWithCustomDeleter) {
+  int n = 0;
+  class IncrementingDeleter {
+   public:
+    void operator()(int* p) { ++*p; }
+  };
+  {
+    UniquePtr<int, IncrementingDeleter> p(&n);
+    EXPECT_EQ(0, n);
+  }
+  EXPECT_EQ(1, n);
+}
+
+}  // namespace testing
+}  // namespace grpc_core
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
diff --git a/test/core/tsi/transport_security_test.c b/test/core/tsi/transport_security_test.c
index ee4a37c..4214407 100644
--- a/test/core/tsi/transport_security_test.c
+++ b/test/core/tsi/transport_security_test.c
@@ -376,6 +376,8 @@
              TSI_INVALID_ARGUMENT);
   GPR_ASSERT(tsi_handshaker_get_bytes_to_send_to_peer(NULL, NULL, NULL) ==
              TSI_INVALID_ARGUMENT);
+  GPR_ASSERT(tsi_handshaker_next(NULL, NULL, 0, NULL, NULL, NULL, NULL, NULL) ==
+             TSI_INVALID_ARGUMENT);
 }
 
 static void test_handshaker_invalid_state(void) {
diff --git a/test/core/util/port_server_client.c b/test/core/util/port_server_client.c
index 38054dd..254c3a6 100644
--- a/test/core/util/port_server_client.c
+++ b/test/core/util/port_server_client.c
@@ -103,7 +103,7 @@
   grpc_resource_quota *resource_quota =
       grpc_resource_quota_create("port_server_client/free");
   grpc_httpcli_get(&exec_ctx, &context, &pr.pops, resource_quota, &req,
-                   grpc_timeout_seconds_to_deadline(10),
+                   grpc_timeout_seconds_to_deadline(30),
                    grpc_closure_create(freed_port_from_server, &pr,
                                        grpc_schedule_on_exec_ctx),
                    &rsp);
@@ -235,7 +235,7 @@
       grpc_resource_quota_create("port_server_client/pick");
   grpc_httpcli_get(
       &exec_ctx, &context, &pr.pops, resource_quota, &req,
-      grpc_timeout_seconds_to_deadline(10),
+      grpc_timeout_seconds_to_deadline(30),
       grpc_closure_create(got_port_from_server, &pr, grpc_schedule_on_exec_ctx),
       &pr.response);
   grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
diff --git a/test/core/util/test_config.c b/test/core/util/test_config.c
index 0180d6f..9a400c5 100644
--- a/test/core/util/test_config.c
+++ b/test/core/util/test_config.c
@@ -348,6 +348,14 @@
 #endif
 }
 
+bool BuiltUnderUbsan() {
+#ifdef GRPC_UBSAN
+  return true;
+#else
+  return false;
+#endif
+}
+
 int64_t grpc_test_sanitizer_slowdown_factor() {
   int64_t sanitizer_multiplier = 1;
   if (BuiltUnderValgrind()) {
@@ -358,6 +366,8 @@
     sanitizer_multiplier = 3;
   } else if (BuiltUnderMsan()) {
     sanitizer_multiplier = 4;
+  } else if (BuiltUnderUbsan()) {
+    sanitizer_multiplier = 5;
   }
   return sanitizer_multiplier;
 }
diff --git a/test/cpp/codegen/BUILD b/test/cpp/codegen/BUILD
index 14d5733..43d133f 100644
--- a/test/cpp/codegen/BUILD
+++ b/test/cpp/codegen/BUILD
@@ -62,7 +62,7 @@
 cc_test(
     name = "golden_file_test",
     srcs = ["golden_file_test.cc"],
-    args = ["--generated_file_path=$(GENDIR)/src/proto/grpc/testing/compiler_test.grpc.pb.h"],
+    args = ["--generated_file_path=$(GENDIR)/src/proto/grpc/testing/"],
     data = [
         ":compiler_test_golden",
         "//src/proto/grpc/testing:_compiler_test_proto_grpc_codegen",
diff --git a/test/cpp/codegen/compiler_test_golden b/test/cpp/codegen/compiler_test_golden
index fd26a17..8e3ae32 100644
--- a/test/cpp/codegen/compiler_test_golden
+++ b/test/cpp/codegen/compiler_test_golden
@@ -89,10 +89,30 @@
       return std::unique_ptr< ::grpc::ClientAsyncWriterInterface< ::grpc::testing::Request>>(AsyncMethodA2Raw(context, response, cq, tag));
     }
     // MethodA2 trailing comment 1
+    // Method A3 leading comment 1
+    std::unique_ptr< ::grpc::ClientReaderInterface< ::grpc::testing::Response>> MethodA3(::grpc::ClientContext* context, const ::grpc::testing::Request& request) {
+      return std::unique_ptr< ::grpc::ClientReaderInterface< ::grpc::testing::Response>>(MethodA3Raw(context, request));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncReaderInterface< ::grpc::testing::Response>> AsyncMethodA3(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderInterface< ::grpc::testing::Response>>(AsyncMethodA3Raw(context, request, cq, tag));
+    }
+    // Method A3 trailing comment 1
+    // Method A4 leading comment 1
+    std::unique_ptr< ::grpc::ClientReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>> MethodA4(::grpc::ClientContext* context) {
+      return std::unique_ptr< ::grpc::ClientReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>>(MethodA4Raw(context));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>> AsyncMethodA4(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>>(AsyncMethodA4Raw(context, cq, tag));
+    }
+    // Method A4 trailing comment 1
   private:
     virtual ::grpc::ClientAsyncResponseReaderInterface< ::grpc::testing::Response>* AsyncMethodA1Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq) = 0;
     virtual ::grpc::ClientWriterInterface< ::grpc::testing::Request>* MethodA2Raw(::grpc::ClientContext* context, ::grpc::testing::Response* response) = 0;
     virtual ::grpc::ClientAsyncWriterInterface< ::grpc::testing::Request>* AsyncMethodA2Raw(::grpc::ClientContext* context, ::grpc::testing::Response* response, ::grpc::CompletionQueue* cq, void* tag) = 0;
+    virtual ::grpc::ClientReaderInterface< ::grpc::testing::Response>* MethodA3Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request) = 0;
+    virtual ::grpc::ClientAsyncReaderInterface< ::grpc::testing::Response>* AsyncMethodA3Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq, void* tag) = 0;
+    virtual ::grpc::ClientReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>* MethodA4Raw(::grpc::ClientContext* context) = 0;
+    virtual ::grpc::ClientAsyncReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>* AsyncMethodA4Raw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) = 0;
   };
   class Stub final : public StubInterface {
    public:
@@ -107,14 +127,32 @@
     std::unique_ptr< ::grpc::ClientAsyncWriter< ::grpc::testing::Request>> AsyncMethodA2(::grpc::ClientContext* context, ::grpc::testing::Response* response, ::grpc::CompletionQueue* cq, void* tag) {
       return std::unique_ptr< ::grpc::ClientAsyncWriter< ::grpc::testing::Request>>(AsyncMethodA2Raw(context, response, cq, tag));
     }
+    std::unique_ptr< ::grpc::ClientReader< ::grpc::testing::Response>> MethodA3(::grpc::ClientContext* context, const ::grpc::testing::Request& request) {
+      return std::unique_ptr< ::grpc::ClientReader< ::grpc::testing::Response>>(MethodA3Raw(context, request));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncReader< ::grpc::testing::Response>> AsyncMethodA3(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReader< ::grpc::testing::Response>>(AsyncMethodA3Raw(context, request, cq, tag));
+    }
+    std::unique_ptr< ::grpc::ClientReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>> MethodA4(::grpc::ClientContext* context) {
+      return std::unique_ptr< ::grpc::ClientReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>>(MethodA4Raw(context));
+    }
+    std::unique_ptr<  ::grpc::ClientAsyncReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>> AsyncMethodA4(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>>(AsyncMethodA4Raw(context, cq, tag));
+    }
 
    private:
     std::shared_ptr< ::grpc::ChannelInterface> channel_;
     ::grpc::ClientAsyncResponseReader< ::grpc::testing::Response>* AsyncMethodA1Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq) override;
     ::grpc::ClientWriter< ::grpc::testing::Request>* MethodA2Raw(::grpc::ClientContext* context, ::grpc::testing::Response* response) override;
     ::grpc::ClientAsyncWriter< ::grpc::testing::Request>* AsyncMethodA2Raw(::grpc::ClientContext* context, ::grpc::testing::Response* response, ::grpc::CompletionQueue* cq, void* tag) override;
+    ::grpc::ClientReader< ::grpc::testing::Response>* MethodA3Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request) override;
+    ::grpc::ClientAsyncReader< ::grpc::testing::Response>* AsyncMethodA3Raw(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq, void* tag) override;
+    ::grpc::ClientReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>* MethodA4Raw(::grpc::ClientContext* context) override;
+    ::grpc::ClientAsyncReaderWriter< ::grpc::testing::Request, ::grpc::testing::Response>* AsyncMethodA4Raw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) override;
     const ::grpc::RpcMethod rpcmethod_MethodA1_;
     const ::grpc::RpcMethod rpcmethod_MethodA2_;
+    const ::grpc::RpcMethod rpcmethod_MethodA3_;
+    const ::grpc::RpcMethod rpcmethod_MethodA4_;
   };
   static std::unique_ptr<Stub> NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel, const ::grpc::StubOptions& options = ::grpc::StubOptions());
 
@@ -131,6 +169,12 @@
     // Method A2 leading comment 2
     virtual ::grpc::Status MethodA2(::grpc::ServerContext* context, ::grpc::ServerReader< ::grpc::testing::Request>* reader, ::grpc::testing::Response* response);
     // MethodA2 trailing comment 1
+    // Method A3 leading comment 1
+    virtual ::grpc::Status MethodA3(::grpc::ServerContext* context, const ::grpc::testing::Request* request, ::grpc::ServerWriter< ::grpc::testing::Response>* writer);
+    // Method A3 trailing comment 1
+    // Method A4 leading comment 1
+    virtual ::grpc::Status MethodA4(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::testing::Response, ::grpc::testing::Request>* stream);
+    // Method A4 trailing comment 1
   };
   template <class BaseClass>
   class WithAsyncMethod_MethodA1 : public BaseClass {
@@ -172,7 +216,47 @@
       ::grpc::Service::RequestAsyncClientStreaming(1, context, reader, new_call_cq, notification_cq, tag);
     }
   };
-  typedef WithAsyncMethod_MethodA1<WithAsyncMethod_MethodA2<Service > > AsyncService;
+  template <class BaseClass>
+  class WithAsyncMethod_MethodA3 : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithAsyncMethod_MethodA3() {
+      ::grpc::Service::MarkMethodAsync(2);
+    }
+    ~WithAsyncMethod_MethodA3() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status MethodA3(::grpc::ServerContext* context, const ::grpc::testing::Request* request, ::grpc::ServerWriter< ::grpc::testing::Response>* writer) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+    void RequestMethodA3(::grpc::ServerContext* context, ::grpc::testing::Request* request, ::grpc::ServerAsyncWriter< ::grpc::testing::Response>* writer, ::grpc::CompletionQueue* new_call_cq, ::grpc::ServerCompletionQueue* notification_cq, void *tag) {
+      ::grpc::Service::RequestAsyncServerStreaming(2, context, request, writer, new_call_cq, notification_cq, tag);
+    }
+  };
+  template <class BaseClass>
+  class WithAsyncMethod_MethodA4 : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithAsyncMethod_MethodA4() {
+      ::grpc::Service::MarkMethodAsync(3);
+    }
+    ~WithAsyncMethod_MethodA4() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status MethodA4(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::testing::Response, ::grpc::testing::Request>* stream) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+    void RequestMethodA4(::grpc::ServerContext* context, ::grpc::ServerAsyncReaderWriter< ::grpc::testing::Response, ::grpc::testing::Request>* stream, ::grpc::CompletionQueue* new_call_cq, ::grpc::ServerCompletionQueue* notification_cq, void *tag) {
+      ::grpc::Service::RequestAsyncBidiStreaming(3, context, stream, new_call_cq, notification_cq, tag);
+    }
+  };
+  typedef WithAsyncMethod_MethodA1<WithAsyncMethod_MethodA2<WithAsyncMethod_MethodA3<WithAsyncMethod_MethodA4<Service > > > > AsyncService;
   template <class BaseClass>
   class WithGenericMethod_MethodA1 : public BaseClass {
    private:
@@ -208,6 +292,40 @@
     }
   };
   template <class BaseClass>
+  class WithGenericMethod_MethodA3 : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithGenericMethod_MethodA3() {
+      ::grpc::Service::MarkMethodGeneric(2);
+    }
+    ~WithGenericMethod_MethodA3() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status MethodA3(::grpc::ServerContext* context, const ::grpc::testing::Request* request, ::grpc::ServerWriter< ::grpc::testing::Response>* writer) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+  };
+  template <class BaseClass>
+  class WithGenericMethod_MethodA4 : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithGenericMethod_MethodA4() {
+      ::grpc::Service::MarkMethodGeneric(3);
+    }
+    ~WithGenericMethod_MethodA4() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status MethodA4(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::testing::Response, ::grpc::testing::Request>* stream) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+  };
+  template <class BaseClass>
   class WithStreamedUnaryMethod_MethodA1 : public BaseClass {
    private:
     void BaseClassMustBeDerivedFromService(const Service *service) {}
@@ -228,8 +346,28 @@
     virtual ::grpc::Status StreamedMethodA1(::grpc::ServerContext* context, ::grpc::ServerUnaryStreamer< ::grpc::testing::Request,::grpc::testing::Response>* server_unary_streamer) = 0;
   };
   typedef WithStreamedUnaryMethod_MethodA1<Service > StreamedUnaryService;
-  typedef Service SplitStreamedService;
-  typedef WithStreamedUnaryMethod_MethodA1<Service > StreamedService;
+  template <class BaseClass>
+  class WithSplitStreamingMethod_MethodA3 : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithSplitStreamingMethod_MethodA3() {
+      ::grpc::Service::MarkMethodStreamed(2,
+        new ::grpc::SplitServerStreamingHandler< ::grpc::testing::Request, ::grpc::testing::Response>(std::bind(&WithSplitStreamingMethod_MethodA3<BaseClass>::StreamedMethodA3, this, std::placeholders::_1, std::placeholders::_2)));
+    }
+    ~WithSplitStreamingMethod_MethodA3() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable regular version of this method
+    ::grpc::Status MethodA3(::grpc::ServerContext* context, const ::grpc::testing::Request* request, ::grpc::ServerWriter< ::grpc::testing::Response>* writer) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+    // replace default version of method with split streamed
+    virtual ::grpc::Status StreamedMethodA3(::grpc::ServerContext* context, ::grpc::ServerSplitStreamer< ::grpc::testing::Request,::grpc::testing::Response>* server_split_streamer) = 0;
+  };
+  typedef WithSplitStreamingMethod_MethodA3<Service > SplitStreamedService;
+  typedef WithStreamedUnaryMethod_MethodA1<WithSplitStreamingMethod_MethodA3<Service > > StreamedService;
 };
 
 // ServiceB leading comment 1
diff --git a/test/cpp/codegen/compiler_test_mock_golden b/test/cpp/codegen/compiler_test_mock_golden
new file mode 100644
index 0000000..8e4b4d5
--- /dev/null
+++ b/test/cpp/codegen/compiler_test_mock_golden
@@ -0,0 +1,34 @@
+// Generated by the gRPC C++ plugin.
+// If you make any local change, they will be lost.
+// source: src/proto/grpc/testing/compiler_test.proto
+
+#include "src/proto/grpc/testing/compiler_test.pb.h"
+#include "src/proto/grpc/testing/compiler_test.grpc.pb.h"
+
+#include <grpc++/impl/codegen/async_stream.h>
+#include <grpc++/impl/codegen/sync_stream.h>
+#include <gmock/gmock.h>
+namespace grpc {
+namespace testing {
+
+class MockServiceAStub : public ServiceA::StubInterface {
+ public:
+  MOCK_METHOD3(MethodA1, ::grpc::Status(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::testing::Response* response));
+  MOCK_METHOD3(AsyncMethodA1Raw, ::grpc::ClientAsyncResponseReaderInterface< ::grpc::testing::Response>*(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq));
+  MOCK_METHOD2(MethodA2Raw, ::grpc::ClientWriterInterface< ::grpc::testing::Request>*(::grpc::ClientContext* context, ::grpc::testing::Response* response));
+  MOCK_METHOD4(AsyncMethodA2Raw, ::grpc::ClientAsyncWriterInterface< ::grpc::testing::Request>*(::grpc::ClientContext* context, ::grpc::testing::Response* response, ::grpc::CompletionQueue* cq, void* tag));
+  MOCK_METHOD2(MethodA3Raw, ::grpc::ClientReaderInterface< ::grpc::testing::Response>*(::grpc::ClientContext* context, const ::grpc::testing::Request& request));
+  MOCK_METHOD4(AsyncMethodA3Raw, ::grpc::ClientAsyncReaderInterface< ::grpc::testing::Response>*(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq, void* tag));
+  MOCK_METHOD1(MethodA4Raw, ::grpc::ClientReaderWriterInterface< ::grpc::testing::Request, ::grpc::testing::Response>*(::grpc::ClientContext* context));
+  MOCK_METHOD3(AsyncMethodA4Raw, ::grpc::ClientAsyncReaderWriterInterface<::grpc::testing::Request, ::grpc::testing::Response>*(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag));
+};
+
+class MockServiceBStub : public ServiceB::StubInterface {
+ public:
+  MOCK_METHOD3(MethodB1, ::grpc::Status(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::testing::Response* response));
+  MOCK_METHOD3(AsyncMethodB1Raw, ::grpc::ClientAsyncResponseReaderInterface< ::grpc::testing::Response>*(::grpc::ClientContext* context, const ::grpc::testing::Request& request, ::grpc::CompletionQueue* cq));
+};
+
+} // namespace grpc
+} // namespace testing
+
diff --git a/test/cpp/codegen/golden_file_test.cc b/test/cpp/codegen/golden_file_test.cc
index 158a4d9..7789ac7 100644
--- a/test/cpp/codegen/golden_file_test.cc
+++ b/test/cpp/codegen/golden_file_test.cc
@@ -37,16 +37,18 @@
 #include <gflags/gflags.h>
 #include <gtest/gtest.h>
 
-DEFINE_string(generated_file_path, "",
-              "path to the generated compiler_test.grpc.pb.h file");
+DEFINE_string(
+    generated_file_path, "",
+    "path to the directory containing generated files compiler_test.grpc.pb.h"
+    "and compiler_test_mock.grpc.pb.h");
 
 const char kGoldenFilePath[] = "test/cpp/codegen/compiler_test_golden";
+const char kMockGoldenFilePath[] = "test/cpp/codegen/compiler_test_mock_golden";
 
-TEST(GoldenFileTest, TestGeneratedFile) {
-  ASSERT_FALSE(FLAGS_generated_file_path.empty());
-
-  std::ifstream generated(FLAGS_generated_file_path);
-  std::ifstream golden(kGoldenFilePath);
+void run_test(std::basic_string<char> generated_file,
+              std::basic_string<char> golden_file) {
+  std::ifstream generated(generated_file);
+  std::ifstream golden(golden_file);
 
   ASSERT_TRUE(generated.good());
   ASSERT_TRUE(golden.good());
@@ -61,8 +63,23 @@
   golden.close();
 }
 
+TEST(GoldenFileTest, TestGeneratedFile) {
+  run_test(FLAGS_generated_file_path + "compiler_test.grpc.pb.h",
+           kGoldenFilePath);
+}
+
+TEST(GoldenMockFileTest, TestGeneratedMockFile) {
+  run_test(FLAGS_generated_file_path + "compiler_test_mock.grpc.pb.h",
+           kMockGoldenFilePath);
+}
+
 int main(int argc, char **argv) {
   ::testing::InitGoogleTest(&argc, argv);
   ::google::ParseCommandLineFlags(&argc, &argv, true);
+  if (FLAGS_generated_file_path.empty()) {
+    FLAGS_generated_file_path = "gens/src/proto/grpc/testing/";
+  }
+  if (FLAGS_generated_file_path.back() != '/')
+    FLAGS_generated_file_path.append("/");
   return RUN_ALL_TESTS();
 }
diff --git a/test/cpp/end2end/BUILD b/test/cpp/end2end/BUILD
index 0bf7948..f1212e1 100644
--- a/test/cpp/end2end/BUILD
+++ b/test/cpp/end2end/BUILD
@@ -51,6 +51,7 @@
         "//src/proto/grpc/testing:echo_messages_proto",
         "//src/proto/grpc/testing:echo_proto",
         "//src/proto/grpc/testing/duplicate:echo_duplicate_proto",
+        "//src/proto/grpc/health/v1:health_proto",
         "//test/core/util:gpr_test_util",
         "//test/core/util:grpc_test_util",
         "//test/cpp/util:test_util",
diff --git a/test/cpp/end2end/async_end2end_test.cc b/test/cpp/end2end/async_end2end_test.cc
index 0b5215e..cc3958b 100644
--- a/test/cpp/end2end/async_end2end_test.cc
+++ b/test/cpp/end2end/async_end2end_test.cc
@@ -38,6 +38,7 @@
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
+#include <grpc++/ext/health_check_service_server_builder_option.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
@@ -49,6 +50,7 @@
 #include <gtest/gtest.h>
 
 #include "src/core/lib/iomgr/port.h"
+#include "src/proto/grpc/health/v1/health.grpc.pb.h"
 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
@@ -224,13 +226,15 @@
 
 class TestScenario {
  public:
-  TestScenario(bool non_block, const grpc::string& creds_type,
+  TestScenario(bool non_block, const grpc::string& creds_type, bool hcs,
                const grpc::string& content)
       : disable_blocking(non_block),
+        health_check_service(hcs),
         credentials_type(creds_type),
         message_content(content) {}
   void Log() const;
   bool disable_blocking;
+  bool health_check_service;
   // Although the below grpc::string's are logically const, we can't declare
   // them const because of a limitation in the way old compilers (e.g., gcc-4.4)
   // manage vector insertion using a copy constructor
@@ -243,6 +247,8 @@
   return out << "TestScenario{disable_blocking="
              << (scenario.disable_blocking ? "true" : "false")
              << ", credentials='" << scenario.credentials_type
+             << ", health_check_service="
+             << (scenario.health_check_service ? "true" : "false")
              << "', message_size=" << scenario.message_content.size() << "}";
 }
 
@@ -252,6 +258,8 @@
   gpr_log(GPR_DEBUG, "%s", out.str().c_str());
 }
 
+class HealthCheck : public health::v1::Health::Service {};
+
 class AsyncEnd2endTest : public ::testing::TestWithParam<TestScenario> {
  protected:
   AsyncEnd2endTest() { GetParam().Log(); }
@@ -268,6 +276,9 @@
         GetParam().credentials_type);
     builder.AddListeningPort(server_address_.str(), server_creds);
     builder.RegisterService(&service_);
+    if (GetParam().health_check_service) {
+      builder.RegisterService(&health_check_);
+    }
     cq_ = builder.AddCompletionQueue();
 
     // TODO(zyc): make a test option to choose wheather sync plugins should be
@@ -340,6 +351,7 @@
   std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
   std::unique_ptr<Server> server_;
   grpc::testing::EchoTestService::AsyncService service_;
+  HealthCheck health_check_;
   std::ostringstream server_address_;
   int port_;
 
@@ -1754,12 +1766,14 @@
     messages.push_back(big_msg);
   }
 
-  for (auto cred = credentials_types.begin(); cred != credentials_types.end();
-       ++cred) {
-    for (auto msg = messages.begin(); msg != messages.end(); msg++) {
-      scenarios.emplace_back(false, *cred, *msg);
-      if (test_disable_blocking) {
-        scenarios.emplace_back(true, *cred, *msg);
+  for (auto health_check_service : {false, true}) {
+    for (auto cred = credentials_types.begin(); cred != credentials_types.end();
+         ++cred) {
+      for (auto msg = messages.begin(); msg != messages.end(); msg++) {
+        scenarios.emplace_back(false, *cred, health_check_service, *msg);
+        if (test_disable_blocking) {
+          scenarios.emplace_back(true, *cred, health_check_service, *msg);
+        }
       }
     }
   }
diff --git a/test/cpp/end2end/mock_test.cc b/test/cpp/end2end/mock_test.cc
index fdb2732..7e33006 100644
--- a/test/cpp/end2end/mock_test.cc
+++ b/test/cpp/end2end/mock_test.cc
@@ -34,6 +34,7 @@
 #include <climits>
 #include <thread>
 
+#include <gmock/gmock.h>
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
@@ -46,120 +47,35 @@
 #include <grpc/support/time.h>
 #include <gtest/gtest.h>
 
+#include <grpc++/test/mock_stream.h>
+
 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
+#include "src/proto/grpc/testing/echo_mock.grpc.pb.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
+#include <iostream>
+
+using namespace std;
 using grpc::testing::EchoRequest;
 using grpc::testing::EchoResponse;
 using grpc::testing::EchoTestService;
+using grpc::testing::MockClientReaderWriter;
 using std::chrono::system_clock;
+using ::testing::AtLeast;
+using ::testing::SetArgPointee;
+using ::testing::SaveArg;
+using ::testing::_;
+using ::testing::Return;
+using ::testing::Invoke;
+using ::testing::WithArg;
+using ::testing::DoAll;
 
 namespace grpc {
 namespace testing {
 
 namespace {
-template <class W, class R>
-class MockClientReaderWriter final : public ClientReaderWriterInterface<W, R> {
- public:
-  void WaitForInitialMetadata() override {}
-  bool NextMessageSize(uint32_t* sz) override {
-    *sz = UINT_MAX;
-    return true;
-  }
-  bool Read(R* msg) override { return true; }
-  bool Write(const W& msg) override { return true; }
-  bool WritesDone() override { return true; }
-  Status Finish() override { return Status::OK; }
-};
-template <>
-class MockClientReaderWriter<EchoRequest, EchoResponse> final
-    : public ClientReaderWriterInterface<EchoRequest, EchoResponse> {
- public:
-  MockClientReaderWriter() : writes_done_(false) {}
-  void WaitForInitialMetadata() override {}
-  bool NextMessageSize(uint32_t* sz) override {
-    *sz = UINT_MAX;
-    return true;
-  }
-  bool Read(EchoResponse* msg) override {
-    if (writes_done_) return false;
-    msg->set_message(last_message_);
-    return true;
-  }
-
-  bool Write(const EchoRequest& msg, WriteOptions options) override {
-    gpr_log(GPR_INFO, "mock recv msg %s", msg.message().c_str());
-    last_message_ = msg.message();
-    return true;
-  }
-  bool WritesDone() override {
-    writes_done_ = true;
-    return true;
-  }
-  Status Finish() override { return Status::OK; }
-
- private:
-  bool writes_done_;
-  grpc::string last_message_;
-};
-
-// Mocked stub.
-class MockStub : public EchoTestService::StubInterface {
- public:
-  MockStub() {}
-  ~MockStub() {}
-  Status Echo(ClientContext* context, const EchoRequest& request,
-              EchoResponse* response) override {
-    response->set_message(request.message());
-    return Status::OK;
-  }
-  Status Unimplemented(ClientContext* context, const EchoRequest& request,
-                       EchoResponse* response) override {
-    return Status::OK;
-  }
-
- private:
-  ClientAsyncResponseReaderInterface<EchoResponse>* AsyncEchoRaw(
-      ClientContext* context, const EchoRequest& request,
-      CompletionQueue* cq) override {
-    return nullptr;
-  }
-  ClientWriterInterface<EchoRequest>* RequestStreamRaw(
-      ClientContext* context, EchoResponse* response) override {
-    return nullptr;
-  }
-  ClientAsyncWriterInterface<EchoRequest>* AsyncRequestStreamRaw(
-      ClientContext* context, EchoResponse* response, CompletionQueue* cq,
-      void* tag) override {
-    return nullptr;
-  }
-  ClientReaderInterface<EchoResponse>* ResponseStreamRaw(
-      ClientContext* context, const EchoRequest& request) override {
-    return nullptr;
-  }
-  ClientAsyncReaderInterface<EchoResponse>* AsyncResponseStreamRaw(
-      ClientContext* context, const EchoRequest& request, CompletionQueue* cq,
-      void* tag) override {
-    return nullptr;
-  }
-  ClientReaderWriterInterface<EchoRequest, EchoResponse>* BidiStreamRaw(
-      ClientContext* context) override {
-    return new MockClientReaderWriter<EchoRequest, EchoResponse>();
-  }
-  ClientAsyncReaderWriterInterface<EchoRequest, EchoResponse>*
-  AsyncBidiStreamRaw(ClientContext* context, CompletionQueue* cq,
-                     void* tag) override {
-    return nullptr;
-  }
-  ClientAsyncResponseReaderInterface<EchoResponse>* AsyncUnimplementedRaw(
-      ClientContext* context, const EchoRequest& request,
-      CompletionQueue* cq) override {
-    return nullptr;
-  }
-};
-
 class FakeClient {
  public:
   explicit FakeClient(EchoTestService::StubInterface* stub) : stub_(stub) {}
@@ -174,6 +90,55 @@
     EXPECT_TRUE(s.ok());
   }
 
+  void DoRequestStream() {
+    EchoRequest request;
+    EchoResponse response;
+
+    ClientContext context;
+    grpc::string msg("hello");
+    grpc::string exp(msg);
+
+    std::unique_ptr<ClientWriterInterface<EchoRequest>> cstream =
+        stub_->RequestStream(&context, &response);
+
+    request.set_message(msg);
+    EXPECT_TRUE(cstream->Write(request));
+
+    msg = ", world";
+    request.set_message(msg);
+    exp.append(msg);
+    EXPECT_TRUE(cstream->Write(request));
+
+    cstream->WritesDone();
+    Status s = cstream->Finish();
+
+    EXPECT_EQ(exp, response.message());
+    EXPECT_TRUE(s.ok());
+  }
+
+  void DoResponseStream() {
+    EchoRequest request;
+    EchoResponse response;
+    request.set_message("hello world");
+
+    ClientContext context;
+    std::unique_ptr<ClientReaderInterface<EchoResponse>> cstream =
+        stub_->ResponseStream(&context, request);
+
+    grpc::string exp = "";
+    EXPECT_TRUE(cstream->Read(&response));
+    exp.append(response.message() + " ");
+
+    EXPECT_TRUE(cstream->Read(&response));
+    exp.append(response.message());
+
+    EXPECT_FALSE(cstream->Read(&response));
+    EXPECT_EQ(request.message(), exp);
+
+    Status s = cstream->Finish();
+    EXPECT_TRUE(s.ok());
+  }
+
   void DoBidiStream() {
     EchoRequest request;
     EchoResponse response;
@@ -219,6 +184,30 @@
     return Status::OK;
   }
 
+  Status RequestStream(ServerContext* context,
+                       ServerReader<EchoRequest>* reader,
+                       EchoResponse* response) override {
+    EchoRequest request;
+    grpc::string resp("");
+    while (reader->Read(&request)) {
+      gpr_log(GPR_INFO, "recv msg %s", request.message().c_str());
+      resp.append(request.message());
+    }
+    response->set_message(resp);
+    return Status::OK;
+  }
+
+  Status ResponseStream(ServerContext* context, const EchoRequest* request,
+                        ServerWriter<EchoResponse>* writer) override {
+    EchoResponse response;
+    vector<grpc::string> tokens = split(request->message());
+    for (grpc::string token : tokens) {
+      response.set_message(token);
+      writer->Write(response);
+    }
+    return Status::OK;
+  }
+
   Status BidiStream(
       ServerContext* context,
       ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
@@ -231,6 +220,25 @@
     }
     return Status::OK;
   }
+
+ private:
+  const vector<grpc::string> split(const grpc::string& input) {
+    grpc::string buff("");
+    vector<grpc::string> result;
+
+    for (auto n : input) {
+      if (n != ' ') {
+        buff += n;
+        continue;
+      }
+      if (buff == "") continue;
+      result.push_back(buff);
+      buff = "";
+    }
+    if (buff != "") result.push_back(buff);
+
+    return result;
+  }
 };
 
 class MockTest : public ::testing::Test {
@@ -267,16 +275,82 @@
   ResetStub();
   FakeClient client(stub_.get());
   client.DoEcho();
-  MockStub stub;
+  MockEchoTestServiceStub stub;
+  EchoResponse resp;
+  resp.set_message("hello world");
+  EXPECT_CALL(stub, Echo(_, _, _))
+      .Times(AtLeast(1))
+      .WillOnce(DoAll(SetArgPointee<2>(resp), Return(Status::OK)));
   client.ResetStub(&stub);
   client.DoEcho();
 }
 
+TEST_F(MockTest, ClientStream) {
+  ResetStub();
+  FakeClient client(stub_.get());
+  client.DoRequestStream();
+
+  MockEchoTestServiceStub stub;
+  auto w = new MockClientWriter<EchoRequest>();
+  EchoResponse resp;
+  resp.set_message("hello, world");
+
+  EXPECT_CALL(*w, Write(_, _)).Times(2).WillRepeatedly(Return(true));
+  EXPECT_CALL(*w, WritesDone());
+  EXPECT_CALL(*w, Finish()).WillOnce(Return(Status::OK));
+
+  EXPECT_CALL(stub, RequestStreamRaw(_, _))
+      .WillOnce(DoAll(SetArgPointee<1>(resp), Return(w)));
+  client.ResetStub(&stub);
+  client.DoRequestStream();
+}
+
+TEST_F(MockTest, ServerStream) {
+  ResetStub();
+  FakeClient client(stub_.get());
+  client.DoResponseStream();
+
+  MockEchoTestServiceStub stub;
+  auto r = new MockClientReader<EchoResponse>();
+  EchoResponse resp1;
+  resp1.set_message("hello");
+  EchoResponse resp2;
+  resp2.set_message("world");
+
+  EXPECT_CALL(*r, Read(_))
+      .WillOnce(DoAll(SetArgPointee<0>(resp1), Return(true)))
+      .WillOnce(DoAll(SetArgPointee<0>(resp2), Return(true)))
+      .WillOnce(Return(false));
+  EXPECT_CALL(*r, Finish()).WillOnce(Return(Status::OK));
+
+  EXPECT_CALL(stub, ResponseStreamRaw(_, _)).WillOnce(Return(r));
+
+  client.ResetStub(&stub);
+  client.DoResponseStream();
+}
+
+ACTION_P(copy, msg) { arg0->set_message(msg->message()); }
+
 TEST_F(MockTest, BidiStream) {
   ResetStub();
   FakeClient client(stub_.get());
   client.DoBidiStream();
-  MockStub stub;
+  MockEchoTestServiceStub stub;
+  auto rw = new MockClientReaderWriter<EchoRequest, EchoResponse>();
+  EchoRequest msg;
+
+  EXPECT_CALL(*rw, Write(_, _))
+      .Times(3)
+      .WillRepeatedly(DoAll(SaveArg<0>(&msg), Return(true)));
+  EXPECT_CALL(*rw, Read(_))
+      .WillOnce(DoAll(WithArg<0>(copy(&msg)), Return(true)))
+      .WillOnce(DoAll(WithArg<0>(copy(&msg)), Return(true)))
+      .WillOnce(DoAll(WithArg<0>(copy(&msg)), Return(true)))
+      .WillOnce(Return(false));
+  EXPECT_CALL(*rw, WritesDone());
+  EXPECT_CALL(*rw, Finish()).WillOnce(Return(Status::OK));
+
+  EXPECT_CALL(stub, BidiStreamRaw(_)).WillOnce(Return(rw));
   client.ResetStub(&stub);
   client.DoBidiStream();
 }
diff --git a/test/cpp/interop/http2_client.cc b/test/cpp/interop/http2_client.cc
index 38a437f..2109e34 100644
--- a/test/cpp/interop/http2_client.cc
+++ b/test/cpp/interop/http2_client.cc
@@ -108,7 +108,7 @@
 
   SimpleResponse response;
   AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::INTERNAL);
-  GPR_ASSERT(response.has_payload());  // data should be received
+  // There is no guarantee that data would be received.
 
   gpr_log(GPR_DEBUG, "Done testing reset stream after data");
   return true;
diff --git a/test/cpp/microbenchmarks/bm_call_create.cc b/test/cpp/microbenchmarks/bm_call_create.cc
index 18b7566..c91219e 100644
--- a/test/cpp/microbenchmarks/bm_call_create.cc
+++ b/test/cpp/microbenchmarks/bm_call_create.cc
@@ -68,10 +68,12 @@
 void BM_Zalloc(benchmark::State &state) {
   // speed of light for call creation is zalloc, so benchmark a few interesting
   // sizes
+  TrackCounters track_counters;
   size_t sz = state.range(0);
   while (state.KeepRunning()) {
     gpr_free(gpr_zalloc(sz));
   }
+  track_counters.Finish(state);
 }
 BENCHMARK(BM_Zalloc)
     ->Arg(64)
diff --git a/test/cpp/microbenchmarks/fullstack_fixtures.h b/test/cpp/microbenchmarks/fullstack_fixtures.h
index f129ede..98aca1c 100644
--- a/test/cpp/microbenchmarks/fullstack_fixtures.h
+++ b/test/cpp/microbenchmarks/fullstack_fixtures.h
@@ -113,13 +113,17 @@
  public:
   TCP(Service* service, const FixtureConfiguration& fixture_configuration =
                             FixtureConfiguration())
-      : FullstackFixture(service, fixture_configuration, MakeAddress()) {}
+      : FullstackFixture(service, fixture_configuration, MakeAddress(&port_)) {}
+
+  ~TCP() { grpc_recycle_unused_port(port_); }
 
  private:
-  static grpc::string MakeAddress() {
-    int port = grpc_pick_unused_port_or_die();
+  int port_;
+
+  static grpc::string MakeAddress(int* port) {
+    *port = grpc_pick_unused_port_or_die();
     std::stringstream addr;
-    addr << "localhost:" << port;
+    addr << "localhost:" << *port;
     return addr.str();
   }
 };
@@ -128,14 +132,18 @@
  public:
   UDS(Service* service, const FixtureConfiguration& fixture_configuration =
                             FixtureConfiguration())
-      : FullstackFixture(service, fixture_configuration, MakeAddress()) {}
+      : FullstackFixture(service, fixture_configuration, MakeAddress(&port_)) {}
+
+  ~UDS() { grpc_recycle_unused_port(port_); }
 
  private:
-  static grpc::string MakeAddress() {
-    int port = grpc_pick_unused_port_or_die();  // just for a unique id - not a
-                                                // real port
+  int port_;
+
+  static grpc::string MakeAddress(int* port) {
+    *port = grpc_pick_unused_port_or_die();  // just for a unique id - not a
+                                             // real port
     std::stringstream addr;
-    addr << "unix:/tmp/bm_fullstack." << port;
+    addr << "unix:/tmp/bm_fullstack." << *port;
     return addr.str();
   }
 };
diff --git a/test/cpp/microbenchmarks/helpers.cc b/test/cpp/microbenchmarks/helpers.cc
index d277c59..6550742 100644
--- a/test/cpp/microbenchmarks/helpers.cc
+++ b/test/cpp/microbenchmarks/helpers.cc
@@ -57,6 +57,10 @@
       << ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_add) -
                    atm_add_at_start_) /
           (double)state.iterations())
+      << " nows/iter:"
+      << ((double)(gpr_atm_no_barrier_load(&gpr_now_call_count) -
+                   now_calls_at_start_) /
+          (double)state.iterations())
       << " allocs/iter:"
       << ((double)(counters_at_end.total_allocs_absolute -
                    counters_at_start_.total_allocs_absolute) /
diff --git a/test/cpp/microbenchmarks/helpers.h b/test/cpp/microbenchmarks/helpers.h
index 49ed517..7360a1c 100644
--- a/test/cpp/microbenchmarks/helpers.h
+++ b/test/cpp/microbenchmarks/helpers.h
@@ -72,6 +72,7 @@
 extern "C" gpr_atm gpr_mu_locks;
 extern "C" gpr_atm gpr_counter_atm_cas;
 extern "C" gpr_atm gpr_counter_atm_add;
+extern "C" gpr_atm gpr_now_call_count;
 #endif
 
 class TrackCounters {
@@ -86,6 +87,8 @@
       gpr_atm_no_barrier_load(&gpr_counter_atm_cas);
   const size_t atm_add_at_start_ =
       gpr_atm_no_barrier_load(&gpr_counter_atm_add);
+  const size_t now_calls_at_start_ =
+      gpr_atm_no_barrier_load(&gpr_now_call_count);
   grpc_memory_counters counters_at_start_ = grpc_memory_counters_snapshot();
 #endif
 };
diff --git a/test/cpp/util/BUILD b/test/cpp/util/BUILD
index 38f804f..c83f89e 100644
--- a/test/cpp/util/BUILD
+++ b/test/cpp/util/BUILD
@@ -29,6 +29,15 @@
 
 licenses(["notice"])  # 3-clause BSD
 
+# The following builds a shared-object to confirm that grpc++_unsecure
+# builds properly. Build-only is sufficient here
+cc_binary(
+    name = "testso.so",
+    srcs = [],
+    deps = ["//:grpc++_unsecure"],
+    linkshared = 1,
+)
+
 cc_library(
     name = "test_config",
     srcs = [
diff --git a/test/distrib/cpp/run_distrib_test.sh b/test/distrib/cpp/run_distrib_test.sh
index 15fbf28..4728e32 100755
--- a/test/distrib/cpp/run_distrib_test.sh
+++ b/test/distrib/cpp/run_distrib_test.sh
@@ -30,13 +30,8 @@
 
 set -ex
 
-git clone $EXTERNAL_GIT_ROOT
-# clone gRPC submodules, use data from locally cloned submodules where possible
-(cd ${EXTERNAL_GIT_ROOT} && git submodule foreach 'cd /var/local/git/grpc \
-&& git submodule update --init --reference ${EXTERNAL_GIT_ROOT}/${name} \
-${name}')
-
-cd grpc
+# change to grpc repo root
+cd $(dirname $0)/../../..
 
 cd third_party/protobuf && ./autogen.sh && \
 ./configure && make -j4 && make check && make install && ldconfig
diff --git a/third_party/gtest.BUILD b/third_party/gtest.BUILD
index 52c9ca2..b70f2c5 100644
--- a/third_party/gtest.BUILD
+++ b/third_party/gtest.BUILD
@@ -2,11 +2,14 @@
     name = "gtest",
     srcs = [
         "googletest/src/gtest-all.cc",
+	"googlemock/src/gmock-all.cc"
     ],
-    hdrs = glob(["googletest/include/**/*.h", "googletest/src/*.cc", "googletest/src/*.h"]),
+    hdrs = glob(["googletest/include/**/*.h", "googletest/src/*.cc", "googletest/src/*.h", "googlemock/include/**/*.h", "googlemock/src/*.cc", "googlemock/src/*.h"]),
     includes = [
         "googletest",
         "googletest/include",
+	"googlemock",
+	"googlemock/include",
     ],
     linkstatic = 1,
     visibility = [
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 88a9736..9664234 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -1090,7 +1090,7 @@
 src/core/lib/surface/event_string.c \
 src/core/lib/surface/event_string.h \
 src/core/lib/surface/init.h \
-src/core/lib/surface/lame_client.c \
+src/core/lib/surface/lame_client.cc \
 src/core/lib/surface/lame_client.h \
 src/core/lib/surface/metadata_array.c \
 src/core/lib/surface/server.c \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 924595e..f49c2de 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1249,6 +1249,9 @@
 src/core/lib/support/arena.c \
 src/core/lib/support/arena.h \
 src/core/lib/support/atm.c \
+src/core/lib/support/atomic.h \
+src/core/lib/support/atomic_with_atm.h \
+src/core/lib/support/atomic_with_std.h \
 src/core/lib/support/avl.c \
 src/core/lib/support/backoff.c \
 src/core/lib/support/backoff.h \
@@ -1269,6 +1272,7 @@
 src/core/lib/support/log_linux.c \
 src/core/lib/support/log_posix.c \
 src/core/lib/support/log_windows.c \
+src/core/lib/support/memory.h \
 src/core/lib/support/mpscq.c \
 src/core/lib/support/mpscq.h \
 src/core/lib/support/murmur_hash.c \
@@ -1329,7 +1333,7 @@
 src/core/lib/surface/init.c \
 src/core/lib/surface/init.h \
 src/core/lib/surface/init_secure.c \
-src/core/lib/surface/lame_client.c \
+src/core/lib/surface/lame_client.cc \
 src/core/lib/surface/lame_client.h \
 src/core/lib/surface/metadata_array.c \
 src/core/lib/surface/server.c \
@@ -1374,6 +1378,8 @@
 src/core/tsi/ssl_types.h \
 src/core/tsi/transport_security.c \
 src/core/tsi/transport_security.h \
+src/core/tsi/transport_security_adapter.c \
+src/core/tsi/transport_security_adapter.h \
 src/core/tsi/transport_security_interface.h \
 third_party/nanopb/pb.h \
 third_party/nanopb/pb_common.c \
diff --git a/tools/grpcz/BUILD b/tools/grpcz/BUILD
index cac7df2..cc887a5 100644
--- a/tools/grpcz/BUILD
+++ b/tools/grpcz/BUILD
@@ -33,30 +33,31 @@
 
 load("//:bazel/grpc_build_system.bzl", "grpc_proto_library")
 
-grpc_proto_library (
+grpc_proto_library(
     name = "monitoring_proto",
     srcs = [
         "monitoring.proto",
     ],
+    well_known_protos = "@com_google_protobuf//:well_known_protos",
     deps = [
         ":census_proto",
     ],
-    well_known_protos = "@submodule_protobuf//:well_known_protos",
 )
 
-grpc_proto_library (
+grpc_proto_library(
     name = "census_proto",
     srcs = [
         "census.proto",
     ],
-    well_known_protos = "@submodule_protobuf//:well_known_protos",
+    well_known_protos = "@com_google_protobuf//:well_known_protos",
 )
 
 cc_binary(
     name = "grpcz_client",
-    srcs = ["grpcz_client.cc",],
+    srcs = ["grpcz_client.cc"],
     deps = [
-        "//external:gflags",
         "monitoring_proto",
+        "//external:gflags",
+        "@mongoose_repo//:mongoose_lib",
     ],
 )
diff --git a/tools/jenkins/run_c_cpp_test.sh b/tools/jenkins/run_c_cpp_test.sh
index a7e5745..afa2e78 100755
--- a/tools/jenkins/run_c_cpp_test.sh
+++ b/tools/jenkins/run_c_cpp_test.sh
@@ -35,10 +35,12 @@
 # Enter the gRPC repo root
 cd $(dirname $0)/../..
 
-AFFECTS_C_CPP=`python -c 'import sys; \
+AFFECTS_C_CPP=`python -c 'import os; \
+               import sys; \
                sys.path.insert(0, "tools/run_tests/python_utils"); \
                import filter_pull_request_tests as filter; \
-               print(filter.affects_c_cpp("origin/$ghprbTargetBranch"))'`
+               github_target_branch = os.environ.get("ghprbTargetBranch"); \
+               print(filter.affects_c_cpp("origin/%s" % github_target_branch))'`
 
 if [ $AFFECTS_C_CPP == "False" ] ; then
   echo "This pull request does not affect C/C++. Tests do not need to be run."
diff --git a/tools/jenkins/run_performance.sh b/tools/jenkins/run_performance.sh
index 544e31d..f530fb4 100755
--- a/tools/jenkins/run_performance.sh
+++ b/tools/jenkins/run_performance.sh
@@ -37,4 +37,5 @@
 # Enter the gRPC repo root
 cd $(dirname $0)/../..
 
+tools/run_tests/start_port_server.py
 tools/profiling/microbenchmarks/bm_diff.py -d origin/$ghprbTargetBranch -b $BENCHMARKS_TO_RUN
diff --git a/tools/profiling/microbenchmarks/bm2bq.py b/tools/profiling/microbenchmarks/bm2bq.py
index ffb11f5..99cf4a5 100755
--- a/tools/profiling/microbenchmarks/bm2bq.py
+++ b/tools/profiling/microbenchmarks/bm2bq.py
@@ -71,6 +71,7 @@
   ('end_of_stream', 'boolean'),
   ('header_bytes_per_iteration', 'float'),
   ('framing_bytes_per_iteration', 'float'),
+  ('nows_per_iteration', 'float'),
 ]
 
 SANITIZE = {
@@ -103,4 +104,3 @@
       if row[name] == '': continue
       sane_row[name] = SANITIZE[sql_type](row[name])
   writer.writerow(sane_row)
-
diff --git a/tools/profiling/microbenchmarks/bm_diff.py b/tools/profiling/microbenchmarks/bm_diff.py
index 09b62ae..b2d6f46 100755
--- a/tools/profiling/microbenchmarks/bm_diff.py
+++ b/tools/profiling/microbenchmarks/bm_diff.py
@@ -56,6 +56,7 @@
   'writes_per_iteration',
   'atm_cas_per_iteration',
   'atm_add_per_iteration',
+  'nows_per_iteration',
 )
 
 def changed_ratio(n, o):
@@ -203,7 +204,10 @@
 
 
 def read_json(filename):
-  with open(filename) as f: return json.loads(f.read())
+  try:
+    with open(filename) as f: return json.loads(f.read())
+  except ValueError, e:
+    return None
 
 
 def finalize():
@@ -216,16 +220,18 @@
       js_old_ctr = read_json('%s.counters.old.%d.json' % (bm, loop))
       js_old_opt = read_json('%s.opt.old.%d.json' % (bm, loop))
 
-      for row in bm_json.expand_json(js_new_ctr, js_new_opt):
-        print row
-        name = row['cpp_name']
-        if name.endswith('_mean') or name.endswith('_stddev'): continue
-        benchmarks[name].add_sample(row, True)
-      for row in bm_json.expand_json(js_old_ctr, js_old_opt):
-        print row
-        name = row['cpp_name']
-        if name.endswith('_mean') or name.endswith('_stddev'): continue
-        benchmarks[name].add_sample(row, False)
+      if js_new_ctr:
+        for row in bm_json.expand_json(js_new_ctr, js_new_opt):
+          print row
+          name = row['cpp_name']
+          if name.endswith('_mean') or name.endswith('_stddev'): continue
+          benchmarks[name].add_sample(row, True)
+      if js_old_ctr:
+        for row in bm_json.expand_json(js_old_ctr, js_old_opt):
+          print row
+          name = row['cpp_name']
+          if name.endswith('_mean') or name.endswith('_stddev'): continue
+          benchmarks[name].add_sample(row, False)
 
   really_interesting = set()
   for name, bm in benchmarks.items():
@@ -242,8 +248,8 @@
     text = 'Performance differences noted:\n' + tabulate.tabulate(rows, headers=headers, floatfmt='+.2f')
   else:
     text = 'No significant performance differences'
-  comment_on_pr.comment_on_pr('```\n%s\n```' % text)
   print text
+  comment_on_pr.comment_on_pr('```\n%s\n```' % text)
 
 
 eintr_be_gone(finalize)
diff --git a/tools/run_tests/artifacts/distribtest_targets.py b/tools/run_tests/artifacts/distribtest_targets.py
index 90bbde8..097fd2d 100644
--- a/tools/run_tests/artifacts/distribtest_targets.py
+++ b/tools/run_tests/artifacts/distribtest_targets.py
@@ -38,11 +38,14 @@
 
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
-                   flake_retries=0, timeout_retries=0):
+                   flake_retries=0, timeout_retries=0,
+                   copy_rel_path=None):
   """Creates jobspec for a task running under docker."""
   environ = environ.copy()
   environ['RUN_COMMAND'] = shell_command
-  environ['RELATIVE_COPY_PATH'] = 'test/distrib'
+  # the entire repo will be cloned if copy_rel_path is not set.
+  if copy_rel_path:
+    environ['RELATIVE_COPY_PATH'] = copy_rel_path
 
   docker_args=[]
   for k,v in environ.items():
@@ -102,7 +105,8 @@
           'tools/dockerfile/distribtest/csharp_%s_%s' % (
               self.docker_suffix,
               self.arch),
-          'test/distrib/csharp/run_distrib_test%s.sh' % self.script_suffix)
+          'test/distrib/csharp/run_distrib_test%s.sh' % self.script_suffix,
+          copy_rel_path='test/distrib')
     elif self.platform == 'macos':
       return create_jobspec(self.name,
           ['test/distrib/csharp/run_distrib_test%s.sh' % self.script_suffix],
@@ -151,7 +155,8 @@
                                        self.arch),
                                    '%s test/distrib/node/run_distrib_test.sh %s' % (
                                        linux32,
-                                       self.node_version))
+                                       self.node_version),
+                                   copy_rel_path='test/distrib')
     elif self.platform == 'macos':
       return create_jobspec(self.name,
                             ['test/distrib/node/run_distrib_test.sh',
@@ -185,7 +190,8 @@
           'tools/dockerfile/distribtest/python_%s_%s' % (
               self.docker_suffix,
               self.arch),
-          'test/distrib/python/run_distrib_test.sh')
+          'test/distrib/python/run_distrib_test.sh',
+          copy_rel_path='test/distrib')
 
   def __str__(self):
     return self.name
@@ -212,7 +218,8 @@
           'tools/dockerfile/distribtest/ruby_%s_%s' % (
               self.docker_suffix,
               self.arch),
-          'test/distrib/ruby/run_distrib_test.sh')
+          'test/distrib/ruby/run_distrib_test.sh',
+          copy_rel_path='test/distrib')
 
   def __str__(self):
     return self.name
@@ -237,7 +244,8 @@
                                    'tools/dockerfile/distribtest/php_%s_%s' % (
                                        self.docker_suffix,
                                        self.arch),
-                                   'test/distrib/php/run_distrib_test.sh')
+                                   'test/distrib/php/run_distrib_test.sh',
+                                   copy_rel_path='test/distrib')
     elif self.platform == 'macos':
       return create_jobspec(self.name,
           ['test/distrib/php/run_distrib_test.sh'],
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index 70e2619..5eba7fb 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -1988,6 +1988,23 @@
     "headers": [], 
     "is_filegroup": false, 
     "language": "c", 
+    "name": "slice_hash_table_test", 
+    "src": [
+      "test/core/slice/slice_hash_table_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
     "name": "slice_string_helpers_test", 
     "src": [
       "test/core/slice/slice_string_helpers_test.c"
@@ -2854,14 +2871,19 @@
     "headers": [
       "src/proto/grpc/testing/control.grpc.pb.h", 
       "src/proto/grpc/testing/control.pb.h", 
+      "src/proto/grpc/testing/control_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.pb.h", 
+      "src/proto/grpc/testing/payloads_mock.grpc.pb.h", 
       "src/proto/grpc/testing/services.grpc.pb.h", 
       "src/proto/grpc/testing/services.pb.h", 
+      "src/proto/grpc/testing/services_mock.grpc.pb.h", 
       "src/proto/grpc/testing/stats.grpc.pb.h", 
-      "src/proto/grpc/testing/stats.pb.h"
+      "src/proto/grpc/testing/stats.pb.h", 
+      "src/proto/grpc/testing/stats_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -2882,14 +2904,19 @@
     "headers": [
       "src/proto/grpc/testing/control.grpc.pb.h", 
       "src/proto/grpc/testing/control.pb.h", 
+      "src/proto/grpc/testing/control_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.pb.h", 
+      "src/proto/grpc/testing/payloads_mock.grpc.pb.h", 
       "src/proto/grpc/testing/services.grpc.pb.h", 
       "src/proto/grpc/testing/services.pb.h", 
+      "src/proto/grpc/testing/services_mock.grpc.pb.h", 
       "src/proto/grpc/testing/stats.grpc.pb.h", 
-      "src/proto/grpc/testing/stats.pb.h"
+      "src/proto/grpc/testing/stats.pb.h", 
+      "src/proto/grpc/testing/stats_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3010,7 +3037,8 @@
     ], 
     "headers": [
       "src/proto/grpc/testing/echo_messages.grpc.pb.h", 
-      "src/proto/grpc/testing/echo_messages.pb.h"
+      "src/proto/grpc/testing/echo_messages.pb.h", 
+      "src/proto/grpc/testing/echo_messages_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3067,7 +3095,8 @@
     ], 
     "headers": [
       "src/proto/grpc/testing/compiler_test.grpc.pb.h", 
-      "src/proto/grpc/testing/compiler_test.pb.h"
+      "src/proto/grpc/testing/compiler_test.pb.h", 
+      "src/proto/grpc/testing/compiler_test_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3212,7 +3241,9 @@
       "src/proto/grpc/testing/echo.grpc.pb.h", 
       "src/proto/grpc/testing/echo.pb.h", 
       "src/proto/grpc/testing/echo_messages.grpc.pb.h", 
-      "src/proto/grpc/testing/echo_messages.pb.h"
+      "src/proto/grpc/testing/echo_messages.pb.h", 
+      "src/proto/grpc/testing/echo_messages_mock.grpc.pb.h", 
+      "src/proto/grpc/testing/echo_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3232,7 +3263,8 @@
     ], 
     "headers": [
       "src/proto/grpc/lb/v1/load_balancer.grpc.pb.h", 
-      "src/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/proto/grpc/lb/v1/load_balancer.pb.h", 
+      "src/proto/grpc/lb/v1/load_balancer_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3254,7 +3286,8 @@
     ], 
     "headers": [
       "src/proto/grpc/lb/v1/load_balancer.grpc.pb.h", 
-      "src/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/proto/grpc/lb/v1/load_balancer.pb.h", 
+      "src/proto/grpc/lb/v1/load_balancer_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3402,6 +3435,25 @@
   {
     "deps": [
       "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc++", 
+      "grpc++_test", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c++", 
+    "name": "memory_test", 
+    "src": [
+      "test/core/support/memory_test.cc"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
       "grpc", 
       "grpc++", 
       "grpc++_test_config"
@@ -3409,6 +3461,7 @@
     "headers": [
       "src/proto/grpc/testing/metrics.grpc.pb.h", 
       "src/proto/grpc/testing/metrics.pb.h", 
+      "src/proto/grpc/testing/metrics_mock.grpc.pb.h", 
       "test/cpp/util/metrics_server.h"
     ], 
     "is_filegroup": false, 
@@ -3430,11 +3483,14 @@
       "grpc++_test_util", 
       "grpc_test_util"
     ], 
-    "headers": [], 
+    "headers": [
+      "include/grpc++/test/mock_stream.h"
+    ], 
     "is_filegroup": false, 
     "language": "c++", 
     "name": "mock_test", 
     "src": [
+      "include/grpc++/test/mock_stream.h", 
       "test/cpp/end2end/mock_test.cc"
     ], 
     "third_party": false, 
@@ -3593,10 +3649,13 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
-      "src/proto/grpc/testing/test.pb.h"
+      "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3622,10 +3681,13 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
-      "src/proto/grpc/testing/test.pb.h"
+      "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3726,7 +3788,9 @@
       "src/proto/grpc/testing/echo.grpc.pb.h", 
       "src/proto/grpc/testing/echo.pb.h", 
       "src/proto/grpc/testing/echo_messages.grpc.pb.h", 
-      "src/proto/grpc/testing/echo_messages.pb.h"
+      "src/proto/grpc/testing/echo_messages.pb.h", 
+      "src/proto/grpc/testing/echo_messages_mock.grpc.pb.h", 
+      "src/proto/grpc/testing/echo_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -3863,12 +3927,16 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/metrics.grpc.pb.h", 
       "src/proto/grpc/testing/metrics.pb.h", 
+      "src/proto/grpc/testing/metrics_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h", 
       "test/cpp/interop/client_helper.h", 
       "test/cpp/interop/interop_client.h", 
       "test/cpp/interop/stress_interop_client.h", 
@@ -5883,7 +5951,8 @@
     "headers": [
       "include/grpc++/support/error_details.h", 
       "src/proto/grpc/status/status.grpc.pb.h", 
-      "src/proto/grpc/status/status.pb.h"
+      "src/proto/grpc/status/status.pb.h", 
+      "src/proto/grpc/status/status_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -5963,12 +6032,16 @@
     "headers": [
       "src/proto/grpc/health/v1/health.grpc.pb.h", 
       "src/proto/grpc/health/v1/health.pb.h", 
+      "src/proto/grpc/health/v1/health_mock.grpc.pb.h", 
       "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h", 
       "src/proto/grpc/testing/duplicate/echo_duplicate.pb.h", 
+      "src/proto/grpc/testing/duplicate/echo_duplicate_mock.grpc.pb.h", 
       "src/proto/grpc/testing/echo.grpc.pb.h", 
       "src/proto/grpc/testing/echo.pb.h", 
       "src/proto/grpc/testing/echo_messages.grpc.pb.h", 
       "src/proto/grpc/testing/echo_messages.pb.h", 
+      "src/proto/grpc/testing/echo_messages_mock.grpc.pb.h", 
+      "src/proto/grpc/testing/echo_mock.grpc.pb.h", 
       "test/cpp/end2end/test_service_impl.h", 
       "test/cpp/util/byte_buffer_proto_helper.h", 
       "test/cpp/util/create_test_channel.h", 
@@ -6148,10 +6221,13 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h", 
       "test/cpp/interop/http2_client.h"
     ], 
     "is_filegroup": false, 
@@ -6175,6 +6251,7 @@
     "headers": [
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "test/cpp/interop/client_helper.h"
     ], 
     "is_filegroup": false, 
@@ -6201,10 +6278,13 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h", 
       "test/cpp/interop/interop_client.h"
     ], 
     "is_filegroup": false, 
@@ -6253,10 +6333,13 @@
     "headers": [
       "src/proto/grpc/testing/empty.grpc.pb.h", 
       "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/empty_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/test.grpc.pb.h", 
-      "src/proto/grpc/testing/test.pb.h"
+      "src/proto/grpc/testing/test.pb.h", 
+      "src/proto/grpc/testing/test_mock.grpc.pb.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -6290,14 +6373,19 @@
     "headers": [
       "src/proto/grpc/testing/control.grpc.pb.h", 
       "src/proto/grpc/testing/control.pb.h", 
+      "src/proto/grpc/testing/control_mock.grpc.pb.h", 
       "src/proto/grpc/testing/messages.grpc.pb.h", 
       "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/messages_mock.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.grpc.pb.h", 
       "src/proto/grpc/testing/payloads.pb.h", 
+      "src/proto/grpc/testing/payloads_mock.grpc.pb.h", 
       "src/proto/grpc/testing/services.grpc.pb.h", 
       "src/proto/grpc/testing/services.pb.h", 
+      "src/proto/grpc/testing/services_mock.grpc.pb.h", 
       "src/proto/grpc/testing/stats.grpc.pb.h", 
       "src/proto/grpc/testing/stats.pb.h", 
+      "src/proto/grpc/testing/stats_mock.grpc.pb.h", 
       "test/cpp/qps/benchmark_config.h", 
       "test/cpp/qps/client.h", 
       "test/cpp/qps/driver.h", 
@@ -7455,9 +7543,13 @@
       "include/grpc/support/useful.h", 
       "src/core/lib/profiling/timers.h", 
       "src/core/lib/support/arena.h", 
+      "src/core/lib/support/atomic.h", 
+      "src/core/lib/support/atomic_with_atm.h", 
+      "src/core/lib/support/atomic_with_std.h", 
       "src/core/lib/support/backoff.h", 
       "src/core/lib/support/block_annotate.h", 
       "src/core/lib/support/env.h", 
+      "src/core/lib/support/memory.h", 
       "src/core/lib/support/mpscq.h", 
       "src/core/lib/support/murmur_hash.h", 
       "src/core/lib/support/spinlock.h", 
@@ -7505,6 +7597,9 @@
       "src/core/lib/support/arena.c", 
       "src/core/lib/support/arena.h", 
       "src/core/lib/support/atm.c", 
+      "src/core/lib/support/atomic.h", 
+      "src/core/lib/support/atomic_with_atm.h", 
+      "src/core/lib/support/atomic_with_std.h", 
       "src/core/lib/support/avl.c", 
       "src/core/lib/support/backoff.c", 
       "src/core/lib/support/backoff.h", 
@@ -7525,6 +7620,7 @@
       "src/core/lib/support/log_linux.c", 
       "src/core/lib/support/log_posix.c", 
       "src/core/lib/support/log_windows.c", 
+      "src/core/lib/support/memory.h", 
       "src/core/lib/support/mpscq.c", 
       "src/core/lib/support/mpscq.h", 
       "src/core/lib/support/murmur_hash.c", 
@@ -7924,7 +8020,7 @@
       "src/core/lib/surface/event_string.c", 
       "src/core/lib/surface/event_string.h", 
       "src/core/lib/surface/init.h", 
-      "src/core/lib/surface/lame_client.c", 
+      "src/core/lib/surface/lame_client.cc", 
       "src/core/lib/surface/lame_client.h", 
       "src/core/lib/surface/metadata_array.c", 
       "src/core/lib/surface/server.c", 
@@ -8710,6 +8806,7 @@
       "src/core/tsi/ssl_transport_security.h", 
       "src/core/tsi/ssl_types.h", 
       "src/core/tsi/transport_security.h", 
+      "src/core/tsi/transport_security_adapter.h", 
       "src/core/tsi/transport_security_interface.h"
     ], 
     "is_filegroup": true, 
@@ -8723,6 +8820,8 @@
       "src/core/tsi/ssl_types.h", 
       "src/core/tsi/transport_security.c", 
       "src/core/tsi/transport_security.h", 
+      "src/core/tsi/transport_security_adapter.c", 
+      "src/core/tsi/transport_security_adapter.h", 
       "src/core/tsi/transport_security_interface.h"
     ], 
     "third_party": false, 
@@ -9003,7 +9102,8 @@
     "deps": [], 
     "headers": [
       "src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h", 
-      "src/proto/grpc/reflection/v1alpha/reflection.pb.h"
+      "src/proto/grpc/reflection/v1alpha/reflection.pb.h", 
+      "src/proto/grpc/reflection/v1alpha/reflection_mock.grpc.pb.h"
     ], 
     "is_filegroup": true, 
     "language": "c++", 
@@ -9017,12 +9117,14 @@
       "grpc++"
     ], 
     "headers": [
+      "include/grpc++/test/mock_stream.h", 
       "include/grpc++/test/server_context_test_spouse.h"
     ], 
     "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_test", 
     "src": [
+      "include/grpc++/test/mock_stream.h", 
       "include/grpc++/test/server_context_test_spouse.h"
     ], 
     "third_party": false, 
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index 8b7bc1f..17f7c4b 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -2085,6 +2085,28 @@
     "flaky": false, 
     "gtest": false, 
     "language": "c", 
+    "name": "slice_hash_table_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
     "name": "slice_string_helpers_test", 
     "platforms": [
       "linux", 
@@ -3307,7 +3329,7 @@
   }, 
   {
     "args": [
-      "--generated_file_path=gens/src/proto/grpc/testing/compiler_test.grpc.pb.h"
+      "--generated_file_path=gens/src/proto/grpc/testing/"
     ], 
     "ci_platforms": [
       "linux", 
@@ -3473,6 +3495,28 @@
     "flaky": false, 
     "gtest": true, 
     "language": "c++", 
+    "name": "memory_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": true, 
+    "language": "c++", 
     "name": "mock_test", 
     "platforms": [
       "linux", 
@@ -85282,6 +85326,29 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/api_fuzzer_corpus/clusterfuzz-testcase-minimized-5175380371570688"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "api_fuzzer_one_entry", 
+    "platforms": [
+      "mac", 
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/api_fuzzer_corpus/crash-0597bbdd657fa4ed14443994c9147a1a7bbc205f"
     ], 
     "ci_platforms": [
diff --git a/tools/run_tests/python_utils/port_server.py b/tools/run_tests/python_utils/port_server.py
index dbd32ef..e96ee0b 100755
--- a/tools/run_tests/python_utils/port_server.py
+++ b/tools/run_tests/python_utils/port_server.py
@@ -33,18 +33,20 @@
 from __future__ import print_function
 
 import argparse
-from six.moves import BaseHTTPServer
+from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
 import hashlib
 import os
 import socket
 import sys
 import time
+from SocketServer import ThreadingMixIn
+import threading
 
 
 # increment this number whenever making a change to ensure that
 # the changes are picked up by running CI servers
 # note that all changes must be backwards compatible
-_MY_VERSION = 9
+_MY_VERSION = 14
 
 
 if len(sys.argv) == 2 and sys.argv[1] == 'dump_version':
@@ -68,6 +70,7 @@
 
 pool = []
 in_use = {}
+mu = threading.Lock()
 
 
 def refill_pool(max_timeout, req):
@@ -95,28 +98,33 @@
 def allocate_port(req):
   global pool
   global in_use
+  global mu
+  mu.acquire()
   max_timeout = 600
   while not pool:
     refill_pool(max_timeout, req)
     if not pool:
       req.log_message("failed to find ports: retrying soon")
+      mu.release()
       time.sleep(1)
+      mu.acquire()
       max_timeout /= 2
   port = pool[0]
   pool = pool[1:]
   in_use[port] = time.time()
+  mu.release()
   return port
 
 
 keep_running = True
 
 
-class Handler(BaseHTTPServer.BaseHTTPRequestHandler):
+class Handler(BaseHTTPRequestHandler):
   
   def setup(self):
     # If the client is unreachable for 5 seconds, close the connection
     self.timeout = 5
-    BaseHTTPServer.BaseHTTPRequestHandler.setup(self)
+    BaseHTTPRequestHandler.setup(self)
 
   def do_GET(self):
     global keep_running
@@ -158,12 +166,11 @@
     elif self.path == '/quitquitquit':
       self.send_response(200)
       self.end_headers()
-      keep_running = False
+      self.server.shutdown()
+
+class ThreadedHTTPServer(ThreadingMixIn, HTTPServer):
+  """Handle requests in a separate thread"""
 
 
-httpd = BaseHTTPServer.HTTPServer(('', args.port), Handler)
-while keep_running:
-  httpd.handle_request()
-  sys.stderr.flush()
+ThreadedHTTPServer(('', args.port), Handler).serve_forever()
 
-print('done')
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index a1ec1b2..4da2ba4 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -763,7 +763,7 @@
         self._make_options = ['EMBED_OPENSSL=true']
         if self.args.compiler != 'coreclr':
           # On Mac, official distribution of mono is 32bit.
-          self._make_options += ['CFLAGS=-m32', 'LDFLAGS=-m32']
+          self._make_options += ['ARCH_FLAGS=-m32', 'LDFLAGS=-m32']
       else:
         self._make_options = ['EMBED_OPENSSL=true', 'EMBED_ZLIB=true']
 
@@ -1353,7 +1353,8 @@
                               '-f', makefile,
                               '-j', '%d' % args.jobs,
                               'EXTRA_DEFINES=GRPC_TEST_SLOWDOWN_MACHINE_FACTOR=%f' % args.slowdown,
-                              'CONFIG=%s' % cfg] +
+                              'CONFIG=%s' % cfg,
+                              'Q='] +
                               language_make_options +
                              ([] if not args.travis else ['JENKINS_BUILD=1']) +
                              targets,
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index 6ae8bfa..539f474 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -1440,6 +1440,17 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "slice_hash_table_test", "vcxproj\test\slice_hash_table_test\slice_hash_table_test.vcxproj", "{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "slice_string_helpers_test", "vcxproj\test\slice_string_helpers_test\slice_string_helpers_test.vcxproj", "{419167BB-C3F5-DDEA-403A-394D1902DE65}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -3823,6 +3834,22 @@
 		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|Win32.Build.0 = Release|Win32
 		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|x64.ActiveCfg = Release|x64
 		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|x64.Build.0 = Release|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug|Win32.ActiveCfg = Debug|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug|x64.ActiveCfg = Debug|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release|Win32.ActiveCfg = Release|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release|x64.ActiveCfg = Release|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug|Win32.Build.0 = Debug|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug|x64.Build.0 = Debug|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release|Win32.Build.0 = Release|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release|x64.Build.0 = Release|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Debug-DLL|x64.Build.0 = Debug|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release-DLL|Win32.Build.0 = Release|Win32
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release-DLL|x64.ActiveCfg = Release|x64
+		{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}.Release-DLL|x64.Build.0 = Release|x64
 		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|Win32.ActiveCfg = Debug|Win32
 		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|x64.ActiveCfg = Debug|x64
 		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index 511ff06..7fb81a7 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj
@@ -188,9 +188,13 @@
   <ItemGroup>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\profiling\timers.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\arena.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic_with_atm.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic_with_std.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\backoff.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\block_annotate.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\env.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\memory.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\mpscq.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\spinlock.h" />
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index a098a54..27d9d2f 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
@@ -260,6 +260,15 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\arena.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic.h">
+      <Filter>src\core\lib\support</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic_with_atm.h">
+      <Filter>src\core\lib\support</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\atomic_with_std.h">
+      <Filter>src\core\lib\support</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\backoff.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
@@ -269,6 +278,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\env.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\memory.h">
+      <Filter>src\core\lib\support</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\mpscq.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
index 424af0d..32d2e09 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
@@ -774,7 +774,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
index a2f7465..a3346bc 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
@@ -430,7 +430,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
index 3f8a2f2..28ccefc 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
@@ -758,7 +758,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 929501a..83f869d 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
@@ -415,7 +415,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index ca70dde..7152009 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -452,6 +452,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\ssl_transport_security.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\ssl_types.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_adapter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_interface.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h" />
@@ -712,7 +713,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
     </ClCompile>
@@ -856,6 +857,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\tsi\transport_security.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\tsi\transport_security_adapter.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\secure\secure_channel_create.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index acadc0a..de2dfe6 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -310,7 +310,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
@@ -526,6 +526,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\tsi\transport_security.c">
       <Filter>src\core\tsi</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\tsi\transport_security_adapter.c">
+      <Filter>src\core\tsi</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.c">
       <Filter>src\core\ext\transport\chttp2\server</Filter>
     </ClCompile>
@@ -1262,6 +1265,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security.h">
       <Filter>src\core\tsi</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_adapter.h">
+      <Filter>src\core\tsi</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_interface.h">
       <Filter>src\core\tsi</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
index a5ec4ae..df89932 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
@@ -547,7 +547,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
index 4078ebd..22cfbe1 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
@@ -367,7 +367,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index c844e15..0bfda72 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -680,7 +680,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 43d27b4..63c8d7f 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -313,7 +313,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\event_string.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\lame_client.cc">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\metadata_array.c">
diff --git a/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj b/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj
new file mode 100644
index 0000000..1f4c113
--- /dev/null
+++ b/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj
@@ -0,0 +1,204 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{0B674E04-7F49-A76B-3FF6-989D751B9AA4}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\cpptest.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\protobuf.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>memory_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>memory_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\support\memory_test.cc">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc++\grpc++.vcxproj">
+      <Project>{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj.filters b/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj.filters
new file mode 100644
index 0000000..01a8934
--- /dev/null
+++ b/vsprojects/vcxproj/test/memory_test/memory_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\support\memory_test.cc">
+      <Filter>test\core\support</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{80245c10-56a8-a6ec-0abc-8125f4271d38}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{eb61342c-1b95-756a-8b70-42aeb2a55f59}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\support">
+      <UniqueIdentifier>{8c8dfaee-c0b7-e843-c50e-427448fe1eb9}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj b/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj
index 8c840fd..bc1cae5 100644
--- a/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj
+++ b/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj
@@ -160,6 +160,9 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc++\test\mock_stream.h" />
+  </ItemGroup>
+  <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\test\cpp\end2end\mock_test.cc">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj.filters b/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj.filters
index 1b3b773..6db61c9 100644
--- a/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj.filters
+++ b/vsprojects/vcxproj/test/mock_test/mock_test.vcxproj.filters
@@ -5,8 +5,22 @@
       <Filter>test\cpp\end2end</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc++\test\mock_stream.h">
+      <Filter>include\grpc++\test</Filter>
+    </ClInclude>
+  </ItemGroup>
 
   <ItemGroup>
+    <Filter Include="include">
+      <UniqueIdentifier>{b827d6d2-cfa5-2dd4-6ebc-afcccd5e8e0c}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="include\grpc++">
+      <UniqueIdentifier>{28289e8f-b68e-b9f5-7680-c15d77b574a5}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="include\grpc++\test">
+      <UniqueIdentifier>{4a7b43be-c730-6221-d190-e394521f9ae7}</UniqueIdentifier>
+    </Filter>
     <Filter Include="test">
       <UniqueIdentifier>{69c257a2-3e4c-a86e-ce0d-1a97b237d294}</UniqueIdentifier>
     </Filter>
diff --git a/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj b/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj
new file mode 100644
index 0000000..0fccfdc
--- /dev/null
+++ b/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{B3BC3481-FCD3-BA52-C975-E65CDB1CE9A9}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>slice_hash_table_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>slice_hash_table_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
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+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
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+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
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+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
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+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
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+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
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+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
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+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_hash_table_test.c">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
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+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
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+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
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+</Project>
+
diff --git a/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj.filters b/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj.filters
new file mode 100644
index 0000000..1973852
--- /dev/null
+++ b/vsprojects/vcxproj/test/slice_hash_table_test/slice_hash_table_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_hash_table_test.c">
+      <Filter>test\core\slice</Filter>
+    </ClCompile>
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+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{e11f5007-84da-0229-9118-2a2bb17f956c}</UniqueIdentifier>
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+    <Filter Include="test\core">
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+