Merge branch 'timers' of https://github.com/vjpai/grpc into vjpai-timers
diff --git a/BUILD b/BUILD
index 9a280db..217e497 100644
--- a/BUILD
+++ b/BUILD
@@ -32,539 +32,798 @@
 
 licenses(["notice"])  # 3-clause BSD
 
-
-
-cc_library(
-    name = "gpr",
-    srcs = [
-        "src/core/support/env.h",
-        "src/core/support/file.h",
-        "src/core/support/murmur_hash.h",
-        "src/core/support/string.h",
-        "src/core/support/string_win32.h",
-        "src/core/support/thd_internal.h",
-        "src/core/support/alloc.c",
-        "src/core/support/cancellable.c",
-        "src/core/support/cmdline.c",
-        "src/core/support/cpu_iphone.c",
-        "src/core/support/cpu_linux.c",
-        "src/core/support/cpu_posix.c",
-        "src/core/support/cpu_windows.c",
-        "src/core/support/env_linux.c",
-        "src/core/support/env_posix.c",
-        "src/core/support/env_win32.c",
-        "src/core/support/file.c",
-        "src/core/support/file_posix.c",
-        "src/core/support/file_win32.c",
-        "src/core/support/histogram.c",
-        "src/core/support/host_port.c",
-        "src/core/support/log.c",
-        "src/core/support/log_android.c",
-        "src/core/support/log_linux.c",
-        "src/core/support/log_posix.c",
-        "src/core/support/log_win32.c",
-        "src/core/support/murmur_hash.c",
-        "src/core/support/slice.c",
-        "src/core/support/slice_buffer.c",
-        "src/core/support/string.c",
-        "src/core/support/string_posix.c",
-        "src/core/support/string_win32.c",
-        "src/core/support/sync.c",
-        "src/core/support/sync_posix.c",
-        "src/core/support/sync_win32.c",
-        "src/core/support/thd.c",
-        "src/core/support/thd_posix.c",
-        "src/core/support/thd_win32.c",
-        "src/core/support/time.c",
-        "src/core/support/time_posix.c",
-        "src/core/support/time_win32.c",
-    ],
-    hdrs = [
-        "include/grpc/support/alloc.h",
-        "include/grpc/support/atm.h",
-        "include/grpc/support/atm_gcc_atomic.h",
-        "include/grpc/support/atm_gcc_sync.h",
-        "include/grpc/support/atm_win32.h",
-        "include/grpc/support/cancellable_platform.h",
-        "include/grpc/support/cmdline.h",
-        "include/grpc/support/cpu.h",
-        "include/grpc/support/histogram.h",
-        "include/grpc/support/host_port.h",
-        "include/grpc/support/log.h",
-        "include/grpc/support/log_win32.h",
-        "include/grpc/support/port_platform.h",
-        "include/grpc/support/slice.h",
-        "include/grpc/support/slice_buffer.h",
-        "include/grpc/support/sync.h",
-        "include/grpc/support/sync_generic.h",
-        "include/grpc/support/sync_posix.h",
-        "include/grpc/support/sync_win32.h",
-        "include/grpc/support/thd.h",
-        "include/grpc/support/time.h",
-        "include/grpc/support/useful.h",
-    ],
-    includes = [
-        "include",
-        ".",
-    ],
-    deps = [
-    ],
-)
+package(default_visibility = ["//visibility:public"])
 
 
 
 
 cc_library(
-    name = "grpc",
-    srcs = [
-        "src/core/httpcli/format_request.h",
-        "src/core/httpcli/httpcli.h",
-        "src/core/httpcli/httpcli_security_context.h",
-        "src/core/httpcli/parser.h",
-        "src/core/security/auth.h",
-        "src/core/security/base64.h",
-        "src/core/security/credentials.h",
-        "src/core/security/json_token.h",
-        "src/core/security/secure_endpoint.h",
-        "src/core/security/secure_transport_setup.h",
-        "src/core/security/security_context.h",
-        "src/core/tsi/fake_transport_security.h",
-        "src/core/tsi/ssl_transport_security.h",
-        "src/core/tsi/transport_security.h",
-        "src/core/tsi/transport_security_interface.h",
-        "src/core/channel/census_filter.h",
-        "src/core/channel/channel_args.h",
-        "src/core/channel/channel_stack.h",
-        "src/core/channel/child_channel.h",
-        "src/core/channel/client_channel.h",
-        "src/core/channel/client_setup.h",
-        "src/core/channel/connected_channel.h",
-        "src/core/channel/http_client_filter.h",
-        "src/core/channel/http_filter.h",
-        "src/core/channel/http_server_filter.h",
-        "src/core/channel/metadata_buffer.h",
-        "src/core/channel/noop_filter.h",
-        "src/core/compression/algorithm.h",
-        "src/core/compression/message_compress.h",
-        "src/core/debug/trace.h",
-        "src/core/iomgr/alarm.h",
-        "src/core/iomgr/alarm_heap.h",
-        "src/core/iomgr/alarm_internal.h",
-        "src/core/iomgr/endpoint.h",
-        "src/core/iomgr/endpoint_pair.h",
-        "src/core/iomgr/fd_posix.h",
-        "src/core/iomgr/iocp_windows.h",
-        "src/core/iomgr/iomgr.h",
-        "src/core/iomgr/iomgr_internal.h",
-        "src/core/iomgr/iomgr_posix.h",
-        "src/core/iomgr/pollset.h",
-        "src/core/iomgr/pollset_kick.h",
-        "src/core/iomgr/pollset_kick_posix.h",
-        "src/core/iomgr/pollset_kick_windows.h",
-        "src/core/iomgr/pollset_posix.h",
-        "src/core/iomgr/pollset_windows.h",
-        "src/core/iomgr/resolve_address.h",
-        "src/core/iomgr/sockaddr.h",
-        "src/core/iomgr/sockaddr_posix.h",
-        "src/core/iomgr/sockaddr_utils.h",
-        "src/core/iomgr/sockaddr_win32.h",
-        "src/core/iomgr/socket_utils_posix.h",
-        "src/core/iomgr/socket_windows.h",
-        "src/core/iomgr/tcp_client.h",
-        "src/core/iomgr/tcp_posix.h",
-        "src/core/iomgr/tcp_server.h",
-        "src/core/iomgr/tcp_windows.h",
-        "src/core/iomgr/time_averaged_stats.h",
-        "src/core/iomgr/wakeup_fd_pipe.h",
-        "src/core/iomgr/wakeup_fd_posix.h",
-        "src/core/json/json.h",
-        "src/core/json/json_common.h",
-        "src/core/json/json_reader.h",
-        "src/core/json/json_writer.h",
-        "src/core/statistics/census_interface.h",
-        "src/core/statistics/census_log.h",
-        "src/core/statistics/census_rpc_stats.h",
-        "src/core/statistics/census_tracing.h",
-        "src/core/statistics/hash_table.h",
-        "src/core/statistics/timers.h",
-        "src/core/statistics/window_stats.h",
-        "src/core/surface/byte_buffer_queue.h",
-        "src/core/surface/call.h",
-        "src/core/surface/channel.h",
-        "src/core/surface/client.h",
-        "src/core/surface/completion_queue.h",
-        "src/core/surface/event_string.h",
-        "src/core/surface/init.h",
-        "src/core/surface/server.h",
-        "src/core/surface/surface_trace.h",
-        "src/core/transport/chttp2/alpn.h",
-        "src/core/transport/chttp2/bin_encoder.h",
-        "src/core/transport/chttp2/frame.h",
-        "src/core/transport/chttp2/frame_data.h",
-        "src/core/transport/chttp2/frame_goaway.h",
-        "src/core/transport/chttp2/frame_ping.h",
-        "src/core/transport/chttp2/frame_rst_stream.h",
-        "src/core/transport/chttp2/frame_settings.h",
-        "src/core/transport/chttp2/frame_window_update.h",
-        "src/core/transport/chttp2/hpack_parser.h",
-        "src/core/transport/chttp2/hpack_table.h",
-        "src/core/transport/chttp2/http2_errors.h",
-        "src/core/transport/chttp2/huffsyms.h",
-        "src/core/transport/chttp2/status_conversion.h",
-        "src/core/transport/chttp2/stream_encoder.h",
-        "src/core/transport/chttp2/stream_map.h",
-        "src/core/transport/chttp2/timeout_encoding.h",
-        "src/core/transport/chttp2/varint.h",
-        "src/core/transport/chttp2_transport.h",
-        "src/core/transport/metadata.h",
-        "src/core/transport/stream_op.h",
-        "src/core/transport/transport.h",
-        "src/core/transport/transport_impl.h",
-        "src/core/httpcli/format_request.c",
-        "src/core/httpcli/httpcli.c",
-        "src/core/httpcli/httpcli_security_context.c",
-        "src/core/httpcli/parser.c",
-        "src/core/security/auth.c",
-        "src/core/security/base64.c",
-        "src/core/security/credentials.c",
-        "src/core/security/credentials_posix.c",
-        "src/core/security/credentials_win32.c",
-        "src/core/security/factories.c",
-        "src/core/security/google_default_credentials.c",
-        "src/core/security/json_token.c",
-        "src/core/security/secure_endpoint.c",
-        "src/core/security/secure_transport_setup.c",
-        "src/core/security/security_context.c",
-        "src/core/security/server_secure_chttp2.c",
-        "src/core/surface/init_secure.c",
-        "src/core/surface/secure_channel_create.c",
-        "src/core/tsi/fake_transport_security.c",
-        "src/core/tsi/ssl_transport_security.c",
-        "src/core/tsi/transport_security.c",
-        "src/core/channel/call_op_string.c",
-        "src/core/channel/census_filter.c",
-        "src/core/channel/channel_args.c",
-        "src/core/channel/channel_stack.c",
-        "src/core/channel/child_channel.c",
-        "src/core/channel/client_channel.c",
-        "src/core/channel/client_setup.c",
-        "src/core/channel/connected_channel.c",
-        "src/core/channel/http_client_filter.c",
-        "src/core/channel/http_filter.c",
-        "src/core/channel/http_server_filter.c",
-        "src/core/channel/metadata_buffer.c",
-        "src/core/channel/noop_filter.c",
-        "src/core/compression/algorithm.c",
-        "src/core/compression/message_compress.c",
-        "src/core/debug/trace.c",
-        "src/core/iomgr/alarm.c",
-        "src/core/iomgr/alarm_heap.c",
-        "src/core/iomgr/endpoint.c",
-        "src/core/iomgr/endpoint_pair_posix.c",
-        "src/core/iomgr/fd_posix.c",
-        "src/core/iomgr/iocp_windows.c",
-        "src/core/iomgr/iomgr.c",
-        "src/core/iomgr/iomgr_posix.c",
-        "src/core/iomgr/iomgr_windows.c",
-        "src/core/iomgr/pollset_kick.c",
-        "src/core/iomgr/pollset_multipoller_with_epoll.c",
-        "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
-        "src/core/iomgr/pollset_posix.c",
-        "src/core/iomgr/pollset_windows.c",
-        "src/core/iomgr/resolve_address_posix.c",
-        "src/core/iomgr/resolve_address_windows.c",
-        "src/core/iomgr/sockaddr_utils.c",
-        "src/core/iomgr/socket_utils_common_posix.c",
-        "src/core/iomgr/socket_utils_linux.c",
-        "src/core/iomgr/socket_utils_posix.c",
-        "src/core/iomgr/socket_windows.c",
-        "src/core/iomgr/tcp_client_posix.c",
-        "src/core/iomgr/tcp_client_windows.c",
-        "src/core/iomgr/tcp_posix.c",
-        "src/core/iomgr/tcp_server_posix.c",
-        "src/core/iomgr/tcp_server_windows.c",
-        "src/core/iomgr/tcp_windows.c",
-        "src/core/iomgr/time_averaged_stats.c",
-        "src/core/iomgr/wakeup_fd_eventfd.c",
-        "src/core/iomgr/wakeup_fd_nospecial.c",
-        "src/core/iomgr/wakeup_fd_pipe.c",
-        "src/core/iomgr/wakeup_fd_posix.c",
-        "src/core/json/json.c",
-        "src/core/json/json_reader.c",
-        "src/core/json/json_string.c",
-        "src/core/json/json_writer.c",
-        "src/core/statistics/census_init.c",
-        "src/core/statistics/census_log.c",
-        "src/core/statistics/census_rpc_stats.c",
-        "src/core/statistics/census_tracing.c",
-        "src/core/statistics/hash_table.c",
-        "src/core/statistics/timers.c",
-        "src/core/statistics/window_stats.c",
-        "src/core/surface/byte_buffer.c",
-        "src/core/surface/byte_buffer_queue.c",
-        "src/core/surface/byte_buffer_reader.c",
-        "src/core/surface/call.c",
-        "src/core/surface/call_details.c",
-        "src/core/surface/call_log_batch.c",
-        "src/core/surface/channel.c",
-        "src/core/surface/channel_create.c",
-        "src/core/surface/client.c",
-        "src/core/surface/completion_queue.c",
-        "src/core/surface/event_string.c",
-        "src/core/surface/init.c",
-        "src/core/surface/lame_client.c",
-        "src/core/surface/metadata_array.c",
-        "src/core/surface/server.c",
-        "src/core/surface/server_chttp2.c",
-        "src/core/surface/server_create.c",
-        "src/core/surface/surface_trace.c",
-        "src/core/transport/chttp2/alpn.c",
-        "src/core/transport/chttp2/bin_encoder.c",
-        "src/core/transport/chttp2/frame_data.c",
-        "src/core/transport/chttp2/frame_goaway.c",
-        "src/core/transport/chttp2/frame_ping.c",
-        "src/core/transport/chttp2/frame_rst_stream.c",
-        "src/core/transport/chttp2/frame_settings.c",
-        "src/core/transport/chttp2/frame_window_update.c",
-        "src/core/transport/chttp2/hpack_parser.c",
-        "src/core/transport/chttp2/hpack_table.c",
-        "src/core/transport/chttp2/huffsyms.c",
-        "src/core/transport/chttp2/status_conversion.c",
-        "src/core/transport/chttp2/stream_encoder.c",
-        "src/core/transport/chttp2/stream_map.c",
-        "src/core/transport/chttp2/timeout_encoding.c",
-        "src/core/transport/chttp2/varint.c",
-        "src/core/transport/chttp2_transport.c",
-        "src/core/transport/metadata.c",
-        "src/core/transport/stream_op.c",
-        "src/core/transport/transport.c",
-    ],
-    hdrs = [
-        "include/grpc/grpc_security.h",
-        "include/grpc/byte_buffer.h",
-        "include/grpc/byte_buffer_reader.h",
-        "include/grpc/grpc.h",
-        "include/grpc/grpc_http.h",
-        "include/grpc/status.h",
-    ],
-    includes = [
-        "include",
-        ".",
-    ],
-    deps = [
-        ":gpr",
-    ],
+  name = "gpr",
+  srcs = [
+    "src/core/support/env.h",
+    "src/core/support/file.h",
+    "src/core/support/murmur_hash.h",
+    "src/core/support/string.h",
+    "src/core/support/string_win32.h",
+    "src/core/support/thd_internal.h",
+    "src/core/support/alloc.c",
+    "src/core/support/cancellable.c",
+    "src/core/support/cmdline.c",
+    "src/core/support/cpu_iphone.c",
+    "src/core/support/cpu_linux.c",
+    "src/core/support/cpu_posix.c",
+    "src/core/support/cpu_windows.c",
+    "src/core/support/env_linux.c",
+    "src/core/support/env_posix.c",
+    "src/core/support/env_win32.c",
+    "src/core/support/file.c",
+    "src/core/support/file_posix.c",
+    "src/core/support/file_win32.c",
+    "src/core/support/histogram.c",
+    "src/core/support/host_port.c",
+    "src/core/support/log.c",
+    "src/core/support/log_android.c",
+    "src/core/support/log_linux.c",
+    "src/core/support/log_posix.c",
+    "src/core/support/log_win32.c",
+    "src/core/support/murmur_hash.c",
+    "src/core/support/slice.c",
+    "src/core/support/slice_buffer.c",
+    "src/core/support/string.c",
+    "src/core/support/string_posix.c",
+    "src/core/support/string_win32.c",
+    "src/core/support/sync.c",
+    "src/core/support/sync_posix.c",
+    "src/core/support/sync_win32.c",
+    "src/core/support/thd.c",
+    "src/core/support/thd_posix.c",
+    "src/core/support/thd_win32.c",
+    "src/core/support/time.c",
+    "src/core/support/time_posix.c",
+    "src/core/support/time_win32.c",
+  ],
+  hdrs = [
+    "include/grpc/support/alloc.h",
+    "include/grpc/support/atm.h",
+    "include/grpc/support/atm_gcc_atomic.h",
+    "include/grpc/support/atm_gcc_sync.h",
+    "include/grpc/support/atm_win32.h",
+    "include/grpc/support/cancellable_platform.h",
+    "include/grpc/support/cmdline.h",
+    "include/grpc/support/cpu.h",
+    "include/grpc/support/histogram.h",
+    "include/grpc/support/host_port.h",
+    "include/grpc/support/log.h",
+    "include/grpc/support/log_win32.h",
+    "include/grpc/support/port_platform.h",
+    "include/grpc/support/slice.h",
+    "include/grpc/support/slice_buffer.h",
+    "include/grpc/support/sync.h",
+    "include/grpc/support/sync_generic.h",
+    "include/grpc/support/sync_posix.h",
+    "include/grpc/support/sync_win32.h",
+    "include/grpc/support/thd.h",
+    "include/grpc/support/time.h",
+    "include/grpc/support/useful.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+  ],
 )
 
 
-
-
 cc_library(
-    name = "grpc_unsecure",
-    srcs = [
-        "src/core/channel/census_filter.h",
-        "src/core/channel/channel_args.h",
-        "src/core/channel/channel_stack.h",
-        "src/core/channel/child_channel.h",
-        "src/core/channel/client_channel.h",
-        "src/core/channel/client_setup.h",
-        "src/core/channel/connected_channel.h",
-        "src/core/channel/http_client_filter.h",
-        "src/core/channel/http_filter.h",
-        "src/core/channel/http_server_filter.h",
-        "src/core/channel/metadata_buffer.h",
-        "src/core/channel/noop_filter.h",
-        "src/core/compression/algorithm.h",
-        "src/core/compression/message_compress.h",
-        "src/core/debug/trace.h",
-        "src/core/iomgr/alarm.h",
-        "src/core/iomgr/alarm_heap.h",
-        "src/core/iomgr/alarm_internal.h",
-        "src/core/iomgr/endpoint.h",
-        "src/core/iomgr/endpoint_pair.h",
-        "src/core/iomgr/fd_posix.h",
-        "src/core/iomgr/iocp_windows.h",
-        "src/core/iomgr/iomgr.h",
-        "src/core/iomgr/iomgr_internal.h",
-        "src/core/iomgr/iomgr_posix.h",
-        "src/core/iomgr/pollset.h",
-        "src/core/iomgr/pollset_kick.h",
-        "src/core/iomgr/pollset_kick_posix.h",
-        "src/core/iomgr/pollset_kick_windows.h",
-        "src/core/iomgr/pollset_posix.h",
-        "src/core/iomgr/pollset_windows.h",
-        "src/core/iomgr/resolve_address.h",
-        "src/core/iomgr/sockaddr.h",
-        "src/core/iomgr/sockaddr_posix.h",
-        "src/core/iomgr/sockaddr_utils.h",
-        "src/core/iomgr/sockaddr_win32.h",
-        "src/core/iomgr/socket_utils_posix.h",
-        "src/core/iomgr/socket_windows.h",
-        "src/core/iomgr/tcp_client.h",
-        "src/core/iomgr/tcp_posix.h",
-        "src/core/iomgr/tcp_server.h",
-        "src/core/iomgr/tcp_windows.h",
-        "src/core/iomgr/time_averaged_stats.h",
-        "src/core/iomgr/wakeup_fd_pipe.h",
-        "src/core/iomgr/wakeup_fd_posix.h",
-        "src/core/json/json.h",
-        "src/core/json/json_common.h",
-        "src/core/json/json_reader.h",
-        "src/core/json/json_writer.h",
-        "src/core/statistics/census_interface.h",
-        "src/core/statistics/census_log.h",
-        "src/core/statistics/census_rpc_stats.h",
-        "src/core/statistics/census_tracing.h",
-        "src/core/statistics/hash_table.h",
-        "src/core/statistics/timers.h",
-        "src/core/statistics/window_stats.h",
-        "src/core/surface/byte_buffer_queue.h",
-        "src/core/surface/call.h",
-        "src/core/surface/channel.h",
-        "src/core/surface/client.h",
-        "src/core/surface/completion_queue.h",
-        "src/core/surface/event_string.h",
-        "src/core/surface/init.h",
-        "src/core/surface/server.h",
-        "src/core/surface/surface_trace.h",
-        "src/core/transport/chttp2/alpn.h",
-        "src/core/transport/chttp2/bin_encoder.h",
-        "src/core/transport/chttp2/frame.h",
-        "src/core/transport/chttp2/frame_data.h",
-        "src/core/transport/chttp2/frame_goaway.h",
-        "src/core/transport/chttp2/frame_ping.h",
-        "src/core/transport/chttp2/frame_rst_stream.h",
-        "src/core/transport/chttp2/frame_settings.h",
-        "src/core/transport/chttp2/frame_window_update.h",
-        "src/core/transport/chttp2/hpack_parser.h",
-        "src/core/transport/chttp2/hpack_table.h",
-        "src/core/transport/chttp2/http2_errors.h",
-        "src/core/transport/chttp2/huffsyms.h",
-        "src/core/transport/chttp2/status_conversion.h",
-        "src/core/transport/chttp2/stream_encoder.h",
-        "src/core/transport/chttp2/stream_map.h",
-        "src/core/transport/chttp2/timeout_encoding.h",
-        "src/core/transport/chttp2/varint.h",
-        "src/core/transport/chttp2_transport.h",
-        "src/core/transport/metadata.h",
-        "src/core/transport/stream_op.h",
-        "src/core/transport/transport.h",
-        "src/core/transport/transport_impl.h",
-        "src/core/surface/init_unsecure.c",
-        "src/core/channel/call_op_string.c",
-        "src/core/channel/census_filter.c",
-        "src/core/channel/channel_args.c",
-        "src/core/channel/channel_stack.c",
-        "src/core/channel/child_channel.c",
-        "src/core/channel/client_channel.c",
-        "src/core/channel/client_setup.c",
-        "src/core/channel/connected_channel.c",
-        "src/core/channel/http_client_filter.c",
-        "src/core/channel/http_filter.c",
-        "src/core/channel/http_server_filter.c",
-        "src/core/channel/metadata_buffer.c",
-        "src/core/channel/noop_filter.c",
-        "src/core/compression/algorithm.c",
-        "src/core/compression/message_compress.c",
-        "src/core/debug/trace.c",
-        "src/core/iomgr/alarm.c",
-        "src/core/iomgr/alarm_heap.c",
-        "src/core/iomgr/endpoint.c",
-        "src/core/iomgr/endpoint_pair_posix.c",
-        "src/core/iomgr/fd_posix.c",
-        "src/core/iomgr/iocp_windows.c",
-        "src/core/iomgr/iomgr.c",
-        "src/core/iomgr/iomgr_posix.c",
-        "src/core/iomgr/iomgr_windows.c",
-        "src/core/iomgr/pollset_kick.c",
-        "src/core/iomgr/pollset_multipoller_with_epoll.c",
-        "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
-        "src/core/iomgr/pollset_posix.c",
-        "src/core/iomgr/pollset_windows.c",
-        "src/core/iomgr/resolve_address_posix.c",
-        "src/core/iomgr/resolve_address_windows.c",
-        "src/core/iomgr/sockaddr_utils.c",
-        "src/core/iomgr/socket_utils_common_posix.c",
-        "src/core/iomgr/socket_utils_linux.c",
-        "src/core/iomgr/socket_utils_posix.c",
-        "src/core/iomgr/socket_windows.c",
-        "src/core/iomgr/tcp_client_posix.c",
-        "src/core/iomgr/tcp_client_windows.c",
-        "src/core/iomgr/tcp_posix.c",
-        "src/core/iomgr/tcp_server_posix.c",
-        "src/core/iomgr/tcp_server_windows.c",
-        "src/core/iomgr/tcp_windows.c",
-        "src/core/iomgr/time_averaged_stats.c",
-        "src/core/iomgr/wakeup_fd_eventfd.c",
-        "src/core/iomgr/wakeup_fd_nospecial.c",
-        "src/core/iomgr/wakeup_fd_pipe.c",
-        "src/core/iomgr/wakeup_fd_posix.c",
-        "src/core/json/json.c",
-        "src/core/json/json_reader.c",
-        "src/core/json/json_string.c",
-        "src/core/json/json_writer.c",
-        "src/core/statistics/census_init.c",
-        "src/core/statistics/census_log.c",
-        "src/core/statistics/census_rpc_stats.c",
-        "src/core/statistics/census_tracing.c",
-        "src/core/statistics/hash_table.c",
-        "src/core/statistics/timers.c",
-        "src/core/statistics/window_stats.c",
-        "src/core/surface/byte_buffer.c",
-        "src/core/surface/byte_buffer_queue.c",
-        "src/core/surface/byte_buffer_reader.c",
-        "src/core/surface/call.c",
-        "src/core/surface/call_details.c",
-        "src/core/surface/call_log_batch.c",
-        "src/core/surface/channel.c",
-        "src/core/surface/channel_create.c",
-        "src/core/surface/client.c",
-        "src/core/surface/completion_queue.c",
-        "src/core/surface/event_string.c",
-        "src/core/surface/init.c",
-        "src/core/surface/lame_client.c",
-        "src/core/surface/metadata_array.c",
-        "src/core/surface/server.c",
-        "src/core/surface/server_chttp2.c",
-        "src/core/surface/server_create.c",
-        "src/core/surface/surface_trace.c",
-        "src/core/transport/chttp2/alpn.c",
-        "src/core/transport/chttp2/bin_encoder.c",
-        "src/core/transport/chttp2/frame_data.c",
-        "src/core/transport/chttp2/frame_goaway.c",
-        "src/core/transport/chttp2/frame_ping.c",
-        "src/core/transport/chttp2/frame_rst_stream.c",
-        "src/core/transport/chttp2/frame_settings.c",
-        "src/core/transport/chttp2/frame_window_update.c",
-        "src/core/transport/chttp2/hpack_parser.c",
-        "src/core/transport/chttp2/hpack_table.c",
-        "src/core/transport/chttp2/huffsyms.c",
-        "src/core/transport/chttp2/status_conversion.c",
-        "src/core/transport/chttp2/stream_encoder.c",
-        "src/core/transport/chttp2/stream_map.c",
-        "src/core/transport/chttp2/timeout_encoding.c",
-        "src/core/transport/chttp2/varint.c",
-        "src/core/transport/chttp2_transport.c",
-        "src/core/transport/metadata.c",
-        "src/core/transport/stream_op.c",
-        "src/core/transport/transport.c",
-    ],
-    hdrs = [
-        "include/grpc/byte_buffer.h",
-        "include/grpc/byte_buffer_reader.h",
-        "include/grpc/grpc.h",
-        "include/grpc/grpc_http.h",
-        "include/grpc/status.h",
-    ],
-    includes = [
-        "include",
-        ".",
-    ],
-    deps = [
-        ":gpr",
-    ],
+  name = "grpc",
+  srcs = [
+    "src/core/httpcli/format_request.h",
+    "src/core/httpcli/httpcli.h",
+    "src/core/httpcli/httpcli_security_context.h",
+    "src/core/httpcli/parser.h",
+    "src/core/security/auth.h",
+    "src/core/security/base64.h",
+    "src/core/security/credentials.h",
+    "src/core/security/json_token.h",
+    "src/core/security/secure_endpoint.h",
+    "src/core/security/secure_transport_setup.h",
+    "src/core/security/security_context.h",
+    "src/core/tsi/fake_transport_security.h",
+    "src/core/tsi/ssl_transport_security.h",
+    "src/core/tsi/transport_security.h",
+    "src/core/tsi/transport_security_interface.h",
+    "src/core/channel/census_filter.h",
+    "src/core/channel/channel_args.h",
+    "src/core/channel/channel_stack.h",
+    "src/core/channel/child_channel.h",
+    "src/core/channel/client_channel.h",
+    "src/core/channel/client_setup.h",
+    "src/core/channel/connected_channel.h",
+    "src/core/channel/http_client_filter.h",
+    "src/core/channel/http_filter.h",
+    "src/core/channel/http_server_filter.h",
+    "src/core/channel/metadata_buffer.h",
+    "src/core/channel/noop_filter.h",
+    "src/core/compression/algorithm.h",
+    "src/core/compression/message_compress.h",
+    "src/core/debug/trace.h",
+    "src/core/iomgr/alarm.h",
+    "src/core/iomgr/alarm_heap.h",
+    "src/core/iomgr/alarm_internal.h",
+    "src/core/iomgr/endpoint.h",
+    "src/core/iomgr/endpoint_pair.h",
+    "src/core/iomgr/fd_posix.h",
+    "src/core/iomgr/iocp_windows.h",
+    "src/core/iomgr/iomgr.h",
+    "src/core/iomgr/iomgr_internal.h",
+    "src/core/iomgr/iomgr_posix.h",
+    "src/core/iomgr/pollset.h",
+    "src/core/iomgr/pollset_kick.h",
+    "src/core/iomgr/pollset_kick_posix.h",
+    "src/core/iomgr/pollset_kick_windows.h",
+    "src/core/iomgr/pollset_posix.h",
+    "src/core/iomgr/pollset_windows.h",
+    "src/core/iomgr/resolve_address.h",
+    "src/core/iomgr/sockaddr.h",
+    "src/core/iomgr/sockaddr_posix.h",
+    "src/core/iomgr/sockaddr_utils.h",
+    "src/core/iomgr/sockaddr_win32.h",
+    "src/core/iomgr/socket_utils_posix.h",
+    "src/core/iomgr/socket_windows.h",
+    "src/core/iomgr/tcp_client.h",
+    "src/core/iomgr/tcp_posix.h",
+    "src/core/iomgr/tcp_server.h",
+    "src/core/iomgr/tcp_windows.h",
+    "src/core/iomgr/time_averaged_stats.h",
+    "src/core/iomgr/wakeup_fd_pipe.h",
+    "src/core/iomgr/wakeup_fd_posix.h",
+    "src/core/json/json.h",
+    "src/core/json/json_common.h",
+    "src/core/json/json_reader.h",
+    "src/core/json/json_writer.h",
+    "src/core/statistics/census_interface.h",
+    "src/core/statistics/census_log.h",
+    "src/core/statistics/census_rpc_stats.h",
+    "src/core/statistics/census_tracing.h",
+    "src/core/statistics/hash_table.h",
+    "src/core/statistics/timers.h",
+    "src/core/statistics/window_stats.h",
+    "src/core/surface/byte_buffer_queue.h",
+    "src/core/surface/call.h",
+    "src/core/surface/channel.h",
+    "src/core/surface/client.h",
+    "src/core/surface/completion_queue.h",
+    "src/core/surface/event_string.h",
+    "src/core/surface/init.h",
+    "src/core/surface/server.h",
+    "src/core/surface/surface_trace.h",
+    "src/core/transport/chttp2/alpn.h",
+    "src/core/transport/chttp2/bin_encoder.h",
+    "src/core/transport/chttp2/frame.h",
+    "src/core/transport/chttp2/frame_data.h",
+    "src/core/transport/chttp2/frame_goaway.h",
+    "src/core/transport/chttp2/frame_ping.h",
+    "src/core/transport/chttp2/frame_rst_stream.h",
+    "src/core/transport/chttp2/frame_settings.h",
+    "src/core/transport/chttp2/frame_window_update.h",
+    "src/core/transport/chttp2/hpack_parser.h",
+    "src/core/transport/chttp2/hpack_table.h",
+    "src/core/transport/chttp2/http2_errors.h",
+    "src/core/transport/chttp2/huffsyms.h",
+    "src/core/transport/chttp2/status_conversion.h",
+    "src/core/transport/chttp2/stream_encoder.h",
+    "src/core/transport/chttp2/stream_map.h",
+    "src/core/transport/chttp2/timeout_encoding.h",
+    "src/core/transport/chttp2/varint.h",
+    "src/core/transport/chttp2_transport.h",
+    "src/core/transport/metadata.h",
+    "src/core/transport/stream_op.h",
+    "src/core/transport/transport.h",
+    "src/core/transport/transport_impl.h",
+    "src/core/httpcli/format_request.c",
+    "src/core/httpcli/httpcli.c",
+    "src/core/httpcli/httpcli_security_context.c",
+    "src/core/httpcli/parser.c",
+    "src/core/security/auth.c",
+    "src/core/security/base64.c",
+    "src/core/security/credentials.c",
+    "src/core/security/credentials_posix.c",
+    "src/core/security/credentials_win32.c",
+    "src/core/security/factories.c",
+    "src/core/security/google_default_credentials.c",
+    "src/core/security/json_token.c",
+    "src/core/security/secure_endpoint.c",
+    "src/core/security/secure_transport_setup.c",
+    "src/core/security/security_context.c",
+    "src/core/security/server_secure_chttp2.c",
+    "src/core/surface/init_secure.c",
+    "src/core/surface/secure_channel_create.c",
+    "src/core/tsi/fake_transport_security.c",
+    "src/core/tsi/ssl_transport_security.c",
+    "src/core/tsi/transport_security.c",
+    "src/core/channel/call_op_string.c",
+    "src/core/channel/census_filter.c",
+    "src/core/channel/channel_args.c",
+    "src/core/channel/channel_stack.c",
+    "src/core/channel/child_channel.c",
+    "src/core/channel/client_channel.c",
+    "src/core/channel/client_setup.c",
+    "src/core/channel/connected_channel.c",
+    "src/core/channel/http_client_filter.c",
+    "src/core/channel/http_filter.c",
+    "src/core/channel/http_server_filter.c",
+    "src/core/channel/metadata_buffer.c",
+    "src/core/channel/noop_filter.c",
+    "src/core/compression/algorithm.c",
+    "src/core/compression/message_compress.c",
+    "src/core/debug/trace.c",
+    "src/core/iomgr/alarm.c",
+    "src/core/iomgr/alarm_heap.c",
+    "src/core/iomgr/endpoint.c",
+    "src/core/iomgr/endpoint_pair_posix.c",
+    "src/core/iomgr/fd_posix.c",
+    "src/core/iomgr/iocp_windows.c",
+    "src/core/iomgr/iomgr.c",
+    "src/core/iomgr/iomgr_posix.c",
+    "src/core/iomgr/iomgr_windows.c",
+    "src/core/iomgr/pollset_kick.c",
+    "src/core/iomgr/pollset_multipoller_with_epoll.c",
+    "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
+    "src/core/iomgr/pollset_posix.c",
+    "src/core/iomgr/pollset_windows.c",
+    "src/core/iomgr/resolve_address_posix.c",
+    "src/core/iomgr/resolve_address_windows.c",
+    "src/core/iomgr/sockaddr_utils.c",
+    "src/core/iomgr/socket_utils_common_posix.c",
+    "src/core/iomgr/socket_utils_linux.c",
+    "src/core/iomgr/socket_utils_posix.c",
+    "src/core/iomgr/socket_windows.c",
+    "src/core/iomgr/tcp_client_posix.c",
+    "src/core/iomgr/tcp_client_windows.c",
+    "src/core/iomgr/tcp_posix.c",
+    "src/core/iomgr/tcp_server_posix.c",
+    "src/core/iomgr/tcp_server_windows.c",
+    "src/core/iomgr/tcp_windows.c",
+    "src/core/iomgr/time_averaged_stats.c",
+    "src/core/iomgr/wakeup_fd_eventfd.c",
+    "src/core/iomgr/wakeup_fd_nospecial.c",
+    "src/core/iomgr/wakeup_fd_pipe.c",
+    "src/core/iomgr/wakeup_fd_posix.c",
+    "src/core/json/json.c",
+    "src/core/json/json_reader.c",
+    "src/core/json/json_string.c",
+    "src/core/json/json_writer.c",
+    "src/core/statistics/census_init.c",
+    "src/core/statistics/census_log.c",
+    "src/core/statistics/census_rpc_stats.c",
+    "src/core/statistics/census_tracing.c",
+    "src/core/statistics/hash_table.c",
+    "src/core/statistics/timers.c",
+    "src/core/statistics/window_stats.c",
+    "src/core/surface/byte_buffer.c",
+    "src/core/surface/byte_buffer_queue.c",
+    "src/core/surface/byte_buffer_reader.c",
+    "src/core/surface/call.c",
+    "src/core/surface/call_details.c",
+    "src/core/surface/call_log_batch.c",
+    "src/core/surface/channel.c",
+    "src/core/surface/channel_create.c",
+    "src/core/surface/client.c",
+    "src/core/surface/completion_queue.c",
+    "src/core/surface/event_string.c",
+    "src/core/surface/init.c",
+    "src/core/surface/lame_client.c",
+    "src/core/surface/metadata_array.c",
+    "src/core/surface/server.c",
+    "src/core/surface/server_chttp2.c",
+    "src/core/surface/server_create.c",
+    "src/core/surface/surface_trace.c",
+    "src/core/transport/chttp2/alpn.c",
+    "src/core/transport/chttp2/bin_encoder.c",
+    "src/core/transport/chttp2/frame_data.c",
+    "src/core/transport/chttp2/frame_goaway.c",
+    "src/core/transport/chttp2/frame_ping.c",
+    "src/core/transport/chttp2/frame_rst_stream.c",
+    "src/core/transport/chttp2/frame_settings.c",
+    "src/core/transport/chttp2/frame_window_update.c",
+    "src/core/transport/chttp2/hpack_parser.c",
+    "src/core/transport/chttp2/hpack_table.c",
+    "src/core/transport/chttp2/huffsyms.c",
+    "src/core/transport/chttp2/status_conversion.c",
+    "src/core/transport/chttp2/stream_encoder.c",
+    "src/core/transport/chttp2/stream_map.c",
+    "src/core/transport/chttp2/timeout_encoding.c",
+    "src/core/transport/chttp2/varint.c",
+    "src/core/transport/chttp2_transport.c",
+    "src/core/transport/metadata.c",
+    "src/core/transport/stream_op.c",
+    "src/core/transport/transport.c",
+  ],
+  hdrs = [
+    "include/grpc/grpc_security.h",
+    "include/grpc/byte_buffer.h",
+    "include/grpc/byte_buffer_reader.h",
+    "include/grpc/grpc.h",
+    "include/grpc/grpc_http.h",
+    "include/grpc/status.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    "//external:libssl",
+    ":gpr",
+  ],
 )
 
 
+cc_library(
+  name = "grpc_unsecure",
+  srcs = [
+    "src/core/channel/census_filter.h",
+    "src/core/channel/channel_args.h",
+    "src/core/channel/channel_stack.h",
+    "src/core/channel/child_channel.h",
+    "src/core/channel/client_channel.h",
+    "src/core/channel/client_setup.h",
+    "src/core/channel/connected_channel.h",
+    "src/core/channel/http_client_filter.h",
+    "src/core/channel/http_filter.h",
+    "src/core/channel/http_server_filter.h",
+    "src/core/channel/metadata_buffer.h",
+    "src/core/channel/noop_filter.h",
+    "src/core/compression/algorithm.h",
+    "src/core/compression/message_compress.h",
+    "src/core/debug/trace.h",
+    "src/core/iomgr/alarm.h",
+    "src/core/iomgr/alarm_heap.h",
+    "src/core/iomgr/alarm_internal.h",
+    "src/core/iomgr/endpoint.h",
+    "src/core/iomgr/endpoint_pair.h",
+    "src/core/iomgr/fd_posix.h",
+    "src/core/iomgr/iocp_windows.h",
+    "src/core/iomgr/iomgr.h",
+    "src/core/iomgr/iomgr_internal.h",
+    "src/core/iomgr/iomgr_posix.h",
+    "src/core/iomgr/pollset.h",
+    "src/core/iomgr/pollset_kick.h",
+    "src/core/iomgr/pollset_kick_posix.h",
+    "src/core/iomgr/pollset_kick_windows.h",
+    "src/core/iomgr/pollset_posix.h",
+    "src/core/iomgr/pollset_windows.h",
+    "src/core/iomgr/resolve_address.h",
+    "src/core/iomgr/sockaddr.h",
+    "src/core/iomgr/sockaddr_posix.h",
+    "src/core/iomgr/sockaddr_utils.h",
+    "src/core/iomgr/sockaddr_win32.h",
+    "src/core/iomgr/socket_utils_posix.h",
+    "src/core/iomgr/socket_windows.h",
+    "src/core/iomgr/tcp_client.h",
+    "src/core/iomgr/tcp_posix.h",
+    "src/core/iomgr/tcp_server.h",
+    "src/core/iomgr/tcp_windows.h",
+    "src/core/iomgr/time_averaged_stats.h",
+    "src/core/iomgr/wakeup_fd_pipe.h",
+    "src/core/iomgr/wakeup_fd_posix.h",
+    "src/core/json/json.h",
+    "src/core/json/json_common.h",
+    "src/core/json/json_reader.h",
+    "src/core/json/json_writer.h",
+    "src/core/statistics/census_interface.h",
+    "src/core/statistics/census_log.h",
+    "src/core/statistics/census_rpc_stats.h",
+    "src/core/statistics/census_tracing.h",
+    "src/core/statistics/hash_table.h",
+    "src/core/statistics/timers.h",
+    "src/core/statistics/window_stats.h",
+    "src/core/surface/byte_buffer_queue.h",
+    "src/core/surface/call.h",
+    "src/core/surface/channel.h",
+    "src/core/surface/client.h",
+    "src/core/surface/completion_queue.h",
+    "src/core/surface/event_string.h",
+    "src/core/surface/init.h",
+    "src/core/surface/server.h",
+    "src/core/surface/surface_trace.h",
+    "src/core/transport/chttp2/alpn.h",
+    "src/core/transport/chttp2/bin_encoder.h",
+    "src/core/transport/chttp2/frame.h",
+    "src/core/transport/chttp2/frame_data.h",
+    "src/core/transport/chttp2/frame_goaway.h",
+    "src/core/transport/chttp2/frame_ping.h",
+    "src/core/transport/chttp2/frame_rst_stream.h",
+    "src/core/transport/chttp2/frame_settings.h",
+    "src/core/transport/chttp2/frame_window_update.h",
+    "src/core/transport/chttp2/hpack_parser.h",
+    "src/core/transport/chttp2/hpack_table.h",
+    "src/core/transport/chttp2/http2_errors.h",
+    "src/core/transport/chttp2/huffsyms.h",
+    "src/core/transport/chttp2/status_conversion.h",
+    "src/core/transport/chttp2/stream_encoder.h",
+    "src/core/transport/chttp2/stream_map.h",
+    "src/core/transport/chttp2/timeout_encoding.h",
+    "src/core/transport/chttp2/varint.h",
+    "src/core/transport/chttp2_transport.h",
+    "src/core/transport/metadata.h",
+    "src/core/transport/stream_op.h",
+    "src/core/transport/transport.h",
+    "src/core/transport/transport_impl.h",
+    "src/core/surface/init_unsecure.c",
+    "src/core/channel/call_op_string.c",
+    "src/core/channel/census_filter.c",
+    "src/core/channel/channel_args.c",
+    "src/core/channel/channel_stack.c",
+    "src/core/channel/child_channel.c",
+    "src/core/channel/client_channel.c",
+    "src/core/channel/client_setup.c",
+    "src/core/channel/connected_channel.c",
+    "src/core/channel/http_client_filter.c",
+    "src/core/channel/http_filter.c",
+    "src/core/channel/http_server_filter.c",
+    "src/core/channel/metadata_buffer.c",
+    "src/core/channel/noop_filter.c",
+    "src/core/compression/algorithm.c",
+    "src/core/compression/message_compress.c",
+    "src/core/debug/trace.c",
+    "src/core/iomgr/alarm.c",
+    "src/core/iomgr/alarm_heap.c",
+    "src/core/iomgr/endpoint.c",
+    "src/core/iomgr/endpoint_pair_posix.c",
+    "src/core/iomgr/fd_posix.c",
+    "src/core/iomgr/iocp_windows.c",
+    "src/core/iomgr/iomgr.c",
+    "src/core/iomgr/iomgr_posix.c",
+    "src/core/iomgr/iomgr_windows.c",
+    "src/core/iomgr/pollset_kick.c",
+    "src/core/iomgr/pollset_multipoller_with_epoll.c",
+    "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
+    "src/core/iomgr/pollset_posix.c",
+    "src/core/iomgr/pollset_windows.c",
+    "src/core/iomgr/resolve_address_posix.c",
+    "src/core/iomgr/resolve_address_windows.c",
+    "src/core/iomgr/sockaddr_utils.c",
+    "src/core/iomgr/socket_utils_common_posix.c",
+    "src/core/iomgr/socket_utils_linux.c",
+    "src/core/iomgr/socket_utils_posix.c",
+    "src/core/iomgr/socket_windows.c",
+    "src/core/iomgr/tcp_client_posix.c",
+    "src/core/iomgr/tcp_client_windows.c",
+    "src/core/iomgr/tcp_posix.c",
+    "src/core/iomgr/tcp_server_posix.c",
+    "src/core/iomgr/tcp_server_windows.c",
+    "src/core/iomgr/tcp_windows.c",
+    "src/core/iomgr/time_averaged_stats.c",
+    "src/core/iomgr/wakeup_fd_eventfd.c",
+    "src/core/iomgr/wakeup_fd_nospecial.c",
+    "src/core/iomgr/wakeup_fd_pipe.c",
+    "src/core/iomgr/wakeup_fd_posix.c",
+    "src/core/json/json.c",
+    "src/core/json/json_reader.c",
+    "src/core/json/json_string.c",
+    "src/core/json/json_writer.c",
+    "src/core/statistics/census_init.c",
+    "src/core/statistics/census_log.c",
+    "src/core/statistics/census_rpc_stats.c",
+    "src/core/statistics/census_tracing.c",
+    "src/core/statistics/hash_table.c",
+    "src/core/statistics/timers.c",
+    "src/core/statistics/window_stats.c",
+    "src/core/surface/byte_buffer.c",
+    "src/core/surface/byte_buffer_queue.c",
+    "src/core/surface/byte_buffer_reader.c",
+    "src/core/surface/call.c",
+    "src/core/surface/call_details.c",
+    "src/core/surface/call_log_batch.c",
+    "src/core/surface/channel.c",
+    "src/core/surface/channel_create.c",
+    "src/core/surface/client.c",
+    "src/core/surface/completion_queue.c",
+    "src/core/surface/event_string.c",
+    "src/core/surface/init.c",
+    "src/core/surface/lame_client.c",
+    "src/core/surface/metadata_array.c",
+    "src/core/surface/server.c",
+    "src/core/surface/server_chttp2.c",
+    "src/core/surface/server_create.c",
+    "src/core/surface/surface_trace.c",
+    "src/core/transport/chttp2/alpn.c",
+    "src/core/transport/chttp2/bin_encoder.c",
+    "src/core/transport/chttp2/frame_data.c",
+    "src/core/transport/chttp2/frame_goaway.c",
+    "src/core/transport/chttp2/frame_ping.c",
+    "src/core/transport/chttp2/frame_rst_stream.c",
+    "src/core/transport/chttp2/frame_settings.c",
+    "src/core/transport/chttp2/frame_window_update.c",
+    "src/core/transport/chttp2/hpack_parser.c",
+    "src/core/transport/chttp2/hpack_table.c",
+    "src/core/transport/chttp2/huffsyms.c",
+    "src/core/transport/chttp2/status_conversion.c",
+    "src/core/transport/chttp2/stream_encoder.c",
+    "src/core/transport/chttp2/stream_map.c",
+    "src/core/transport/chttp2/timeout_encoding.c",
+    "src/core/transport/chttp2/varint.c",
+    "src/core/transport/chttp2_transport.c",
+    "src/core/transport/metadata.c",
+    "src/core/transport/stream_op.c",
+    "src/core/transport/transport.c",
+  ],
+  hdrs = [
+    "include/grpc/byte_buffer.h",
+    "include/grpc/byte_buffer_reader.h",
+    "include/grpc/grpc.h",
+    "include/grpc/grpc_http.h",
+    "include/grpc/status.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    ":gpr",
+  ],
+)
+
+
+cc_library(
+  name = "grpc++",
+  srcs = [
+    "src/cpp/client/secure_credentials.h",
+    "src/cpp/server/secure_server_credentials.h",
+    "src/cpp/client/channel.h",
+    "src/cpp/proto/proto_utils.h",
+    "src/cpp/server/thread_pool.h",
+    "src/cpp/util/time.h",
+    "src/cpp/client/secure_credentials.cc",
+    "src/cpp/server/secure_server_credentials.cc",
+    "src/cpp/client/channel.cc",
+    "src/cpp/client/channel_arguments.cc",
+    "src/cpp/client/client_context.cc",
+    "src/cpp/client/client_unary_call.cc",
+    "src/cpp/client/create_channel.cc",
+    "src/cpp/client/credentials.cc",
+    "src/cpp/client/generic_stub.cc",
+    "src/cpp/client/insecure_credentials.cc",
+    "src/cpp/client/internal_stub.cc",
+    "src/cpp/common/call.cc",
+    "src/cpp/common/completion_queue.cc",
+    "src/cpp/common/rpc_method.cc",
+    "src/cpp/proto/proto_utils.cc",
+    "src/cpp/server/async_generic_service.cc",
+    "src/cpp/server/insecure_server_credentials.cc",
+    "src/cpp/server/server.cc",
+    "src/cpp/server/server_builder.cc",
+    "src/cpp/server/server_context.cc",
+    "src/cpp/server/server_credentials.cc",
+    "src/cpp/server/thread_pool.cc",
+    "src/cpp/util/byte_buffer.cc",
+    "src/cpp/util/slice.cc",
+    "src/cpp/util/status.cc",
+    "src/cpp/util/time.cc",
+  ],
+  hdrs = [
+    "include/grpc++/async_generic_service.h",
+    "include/grpc++/async_unary_call.h",
+    "include/grpc++/byte_buffer.h",
+    "include/grpc++/channel_arguments.h",
+    "include/grpc++/channel_interface.h",
+    "include/grpc++/client_context.h",
+    "include/grpc++/completion_queue.h",
+    "include/grpc++/config.h",
+    "include/grpc++/create_channel.h",
+    "include/grpc++/credentials.h",
+    "include/grpc++/generic_stub.h",
+    "include/grpc++/impl/call.h",
+    "include/grpc++/impl/client_unary_call.h",
+    "include/grpc++/impl/internal_stub.h",
+    "include/grpc++/impl/rpc_method.h",
+    "include/grpc++/impl/rpc_service_method.h",
+    "include/grpc++/impl/service_type.h",
+    "include/grpc++/impl/sync.h",
+    "include/grpc++/impl/sync_cxx11.h",
+    "include/grpc++/impl/sync_no_cxx11.h",
+    "include/grpc++/impl/thd.h",
+    "include/grpc++/impl/thd_cxx11.h",
+    "include/grpc++/impl/thd_no_cxx11.h",
+    "include/grpc++/server.h",
+    "include/grpc++/server_builder.h",
+    "include/grpc++/server_context.h",
+    "include/grpc++/server_credentials.h",
+    "include/grpc++/slice.h",
+    "include/grpc++/status.h",
+    "include/grpc++/status_code_enum.h",
+    "include/grpc++/stream.h",
+    "include/grpc++/thread_pool_interface.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    "//external:protobuf_clib",
+    ":gpr",
+    ":grpc",
+  ],
+)
+
+
+cc_library(
+  name = "grpc++_unsecure",
+  srcs = [
+    "src/cpp/client/channel.h",
+    "src/cpp/proto/proto_utils.h",
+    "src/cpp/server/thread_pool.h",
+    "src/cpp/util/time.h",
+    "src/cpp/client/channel.cc",
+    "src/cpp/client/channel_arguments.cc",
+    "src/cpp/client/client_context.cc",
+    "src/cpp/client/client_unary_call.cc",
+    "src/cpp/client/create_channel.cc",
+    "src/cpp/client/credentials.cc",
+    "src/cpp/client/generic_stub.cc",
+    "src/cpp/client/insecure_credentials.cc",
+    "src/cpp/client/internal_stub.cc",
+    "src/cpp/common/call.cc",
+    "src/cpp/common/completion_queue.cc",
+    "src/cpp/common/rpc_method.cc",
+    "src/cpp/proto/proto_utils.cc",
+    "src/cpp/server/async_generic_service.cc",
+    "src/cpp/server/insecure_server_credentials.cc",
+    "src/cpp/server/server.cc",
+    "src/cpp/server/server_builder.cc",
+    "src/cpp/server/server_context.cc",
+    "src/cpp/server/server_credentials.cc",
+    "src/cpp/server/thread_pool.cc",
+    "src/cpp/util/byte_buffer.cc",
+    "src/cpp/util/slice.cc",
+    "src/cpp/util/status.cc",
+    "src/cpp/util/time.cc",
+  ],
+  hdrs = [
+    "include/grpc++/async_generic_service.h",
+    "include/grpc++/async_unary_call.h",
+    "include/grpc++/byte_buffer.h",
+    "include/grpc++/channel_arguments.h",
+    "include/grpc++/channel_interface.h",
+    "include/grpc++/client_context.h",
+    "include/grpc++/completion_queue.h",
+    "include/grpc++/config.h",
+    "include/grpc++/create_channel.h",
+    "include/grpc++/credentials.h",
+    "include/grpc++/generic_stub.h",
+    "include/grpc++/impl/call.h",
+    "include/grpc++/impl/client_unary_call.h",
+    "include/grpc++/impl/internal_stub.h",
+    "include/grpc++/impl/rpc_method.h",
+    "include/grpc++/impl/rpc_service_method.h",
+    "include/grpc++/impl/service_type.h",
+    "include/grpc++/impl/sync.h",
+    "include/grpc++/impl/sync_cxx11.h",
+    "include/grpc++/impl/sync_no_cxx11.h",
+    "include/grpc++/impl/thd.h",
+    "include/grpc++/impl/thd_cxx11.h",
+    "include/grpc++/impl/thd_no_cxx11.h",
+    "include/grpc++/server.h",
+    "include/grpc++/server_builder.h",
+    "include/grpc++/server_context.h",
+    "include/grpc++/server_credentials.h",
+    "include/grpc++/slice.h",
+    "include/grpc++/status.h",
+    "include/grpc++/status_code_enum.h",
+    "include/grpc++/stream.h",
+    "include/grpc++/thread_pool_interface.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    "//external:protobuf_clib",
+    ":gpr",
+    ":grpc_unsecure",
+  ],
+)
+
+
+cc_library(
+  name = "grpc_plugin_support",
+  srcs = [
+    "src/compiler/config.h",
+    "src/compiler/cpp_generator.h",
+    "src/compiler/cpp_generator_helpers.h",
+    "src/compiler/generator_helpers.h",
+    "src/compiler/objective_c_generator.h",
+    "src/compiler/objective_c_generator_helpers.h",
+    "src/compiler/python_generator.h",
+    "src/compiler/ruby_generator.h",
+    "src/compiler/ruby_generator_helpers-inl.h",
+    "src/compiler/ruby_generator_map-inl.h",
+    "src/compiler/ruby_generator_string-inl.h",
+    "src/compiler/cpp_generator.cc",
+    "src/compiler/objective_c_generator.cc",
+    "src/compiler/python_generator.cc",
+    "src/compiler/ruby_generator.cc",
+  ],
+  hdrs = [
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    "//external:protobuf_compiler",
+  ],
+)
+
+
+cc_library(
+  name = "grpc_csharp_ext",
+  srcs = [
+    "src/csharp/ext/grpc_csharp_ext.c",
+  ],
+  hdrs = [
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    ":gpr",
+    ":grpc",
+  ],
+)
+
+
+
+cc_binary(
+  name = "grpc_cpp_plugin",
+  srcs = [
+    "src/compiler/cpp_plugin.cc",
+  ],
+  deps = [
+    "//external:protobuf_compiler",
+    ":grpc_plugin_support",
+  ],
+)
+
+
+cc_binary(
+  name = "grpc_objective_c_plugin",
+  srcs = [
+    "src/compiler/objective_c_plugin.cc",
+  ],
+  deps = [
+    "//external:protobuf_compiler",
+    ":grpc_plugin_support",
+  ],
+)
+
+
+cc_binary(
+  name = "grpc_python_plugin",
+  srcs = [
+    "src/compiler/python_plugin.cc",
+  ],
+  deps = [
+    "//external:protobuf_compiler",
+    ":grpc_plugin_support",
+  ],
+)
+
+
+cc_binary(
+  name = "grpc_ruby_plugin",
+  srcs = [
+    "src/compiler/ruby_plugin.cc",
+  ],
+  deps = [
+    "//external:protobuf_compiler",
+    ":grpc_plugin_support",
+  ],
+)
+
+
+
 
 
diff --git a/Makefile b/Makefile
index b0edd76..5d2bbfb 100644
--- a/Makefile
+++ b/Makefile
@@ -642,6 +642,7 @@
 pubsub_publisher_test: $(BINDIR)/$(CONFIG)/pubsub_publisher_test
 pubsub_subscriber_test: $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
 qps_driver: $(BINDIR)/$(CONFIG)/qps_driver
+qps_smoke_test: $(BINDIR)/$(CONFIG)/qps_smoke_test
 qps_worker: $(BINDIR)/$(CONFIG)/qps_worker
 status_test: $(BINDIR)/$(CONFIG)/status_test
 thread_pool_test: $(BINDIR)/$(CONFIG)/thread_pool_test
@@ -1076,13 +1077,13 @@
 
 privatelibs_c:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fake_security.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack_uds.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_with_oauth2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair_one_byte_at_a_time.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags.a $(LIBDIR)/$(CONFIG)/libend2end_test_empty_batch.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_trailing_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a
 
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libqps.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libqps.a
 
 buildtests: buildtests_c buildtests_cxx
 
 buildtests_c: privatelibs_c $(BINDIR)/$(CONFIG)/alarm_heap_test $(BINDIR)/$(CONFIG)/alarm_list_test $(BINDIR)/$(CONFIG)/alarm_test $(BINDIR)/$(CONFIG)/alpn_test $(BINDIR)/$(CONFIG)/bin_encoder_test $(BINDIR)/$(CONFIG)/census_hash_table_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_circular_buffer_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_test $(BINDIR)/$(CONFIG)/census_statistics_performance_test $(BINDIR)/$(CONFIG)/census_statistics_quick_test $(BINDIR)/$(CONFIG)/census_statistics_small_log_test $(BINDIR)/$(CONFIG)/census_stub_test $(BINDIR)/$(CONFIG)/census_window_stats_test $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test $(BINDIR)/$(CONFIG)/chttp2_stream_encoder_test $(BINDIR)/$(CONFIG)/chttp2_stream_map_test $(BINDIR)/$(CONFIG)/chttp2_transport_end2end_test $(BINDIR)/$(CONFIG)/dualstack_socket_test $(BINDIR)/$(CONFIG)/echo_client $(BINDIR)/$(CONFIG)/echo_server $(BINDIR)/$(CONFIG)/echo_test $(BINDIR)/$(CONFIG)/fd_posix_test $(BINDIR)/$(CONFIG)/fling_client $(BINDIR)/$(CONFIG)/fling_server $(BINDIR)/$(CONFIG)/fling_stream_test $(BINDIR)/$(CONFIG)/fling_test $(BINDIR)/$(CONFIG)/gpr_cancellable_test $(BINDIR)/$(CONFIG)/gpr_cmdline_test $(BINDIR)/$(CONFIG)/gpr_env_test $(BINDIR)/$(CONFIG)/gpr_file_test $(BINDIR)/$(CONFIG)/gpr_histogram_test $(BINDIR)/$(CONFIG)/gpr_host_port_test $(BINDIR)/$(CONFIG)/gpr_log_test $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test $(BINDIR)/$(CONFIG)/gpr_slice_test $(BINDIR)/$(CONFIG)/gpr_string_test $(BINDIR)/$(CONFIG)/gpr_sync_test $(BINDIR)/$(CONFIG)/gpr_thd_test $(BINDIR)/$(CONFIG)/gpr_time_test $(BINDIR)/$(CONFIG)/gpr_useful_test $(BINDIR)/$(CONFIG)/grpc_base64_test $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test $(BINDIR)/$(CONFIG)/grpc_channel_stack_test $(BINDIR)/$(CONFIG)/grpc_completion_queue_test $(BINDIR)/$(CONFIG)/grpc_credentials_test $(BINDIR)/$(CONFIG)/grpc_json_token_test $(BINDIR)/$(CONFIG)/grpc_stream_op_test $(BINDIR)/$(CONFIG)/hpack_parser_test 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$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_no_op_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_legacy_test
 
-buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/pubsub_client $(BINDIR)/$(CONFIG)/pubsub_publisher_test $(BINDIR)/$(CONFIG)/pubsub_subscriber_test $(BINDIR)/$(CONFIG)/qps_driver $(BINDIR)/$(CONFIG)/qps_worker $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/thread_pool_test
+buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/pubsub_client $(BINDIR)/$(CONFIG)/pubsub_publisher_test $(BINDIR)/$(CONFIG)/pubsub_subscriber_test $(BINDIR)/$(CONFIG)/qps_driver $(BINDIR)/$(CONFIG)/qps_smoke_test $(BINDIR)/$(CONFIG)/qps_worker $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/thread_pool_test
 
 test: test_c test_cxx
 
@@ -2004,92 +2005,152 @@
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/examples/pubsub/empty.pb.cc: protoc_dep_error
+$(GENDIR)/examples/pubsub/empty.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/examples/pubsub/empty.pb.cc: examples/pubsub/empty.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/examples/pubsub/empty.grpc.pb.cc: examples/pubsub/empty.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/examples/pubsub/label.pb.cc: protoc_dep_error
+$(GENDIR)/examples/pubsub/label.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/examples/pubsub/label.pb.cc: examples/pubsub/label.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/examples/pubsub/label.grpc.pb.cc: examples/pubsub/label.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/examples/pubsub/pubsub.pb.cc: protoc_dep_error
+$(GENDIR)/examples/pubsub/pubsub.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/examples/pubsub/pubsub.pb.cc: examples/pubsub/pubsub.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/examples/pubsub/pubsub.grpc.pb.cc: examples/pubsub/pubsub.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/interop/empty.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/interop/empty.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/interop/empty.pb.cc: test/cpp/interop/empty.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/interop/empty.grpc.pb.cc: test/cpp/interop/empty.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/interop/messages.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/interop/messages.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/interop/messages.pb.cc: test/cpp/interop/messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/interop/messages.grpc.pb.cc: test/cpp/interop/messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/interop/test.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/interop/test.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/interop/test.pb.cc: test/cpp/interop/test.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/interop/test.grpc.pb.cc: test/cpp/interop/test.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/qps/qpstest.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/qps/qpstest.pb.cc: test/cpp/qps/qpstest.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc: test/cpp/qps/qpstest.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/util/echo.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/util/echo.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/util/echo.pb.cc: test/cpp/util/echo.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/util/echo.grpc.pb.cc: test/cpp/util/echo.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/util/echo_duplicate.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc: test/cpp/util/echo_duplicate.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/util/echo_duplicate.grpc.pb.cc: test/cpp/util/echo_duplicate.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/test/cpp/util/messages.pb.cc: protoc_dep_error
+$(GENDIR)/test/cpp/util/messages.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/test/cpp/util/messages.pb.cc: test/cpp/util/messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/test/cpp/util/messages.grpc.pb.cc: test/cpp/util/messages.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 
@@ -2170,6 +2231,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr.$(SHARED_EXT) $(prefix)/lib/libgpr.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgpr.$(SHARED_EXT) $(prefix)/lib/libgpr.so.0
 	$(Q) ln -sf libgpr.$(SHARED_EXT) $(prefix)/lib/libgpr.so
 endif
 endif
@@ -2183,6 +2245,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc.$(SHARED_EXT) $(prefix)/lib/libgrpc.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgrpc.$(SHARED_EXT) $(prefix)/lib/libgrpc.so.0
 	$(Q) ln -sf libgrpc.$(SHARED_EXT) $(prefix)/lib/libgrpc.so
 endif
 endif
@@ -2196,6 +2259,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc_unsecure.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgrpc_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc_unsecure.so.0
 	$(Q) ln -sf libgrpc_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc_unsecure.so
 endif
 endif
@@ -2217,6 +2281,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++.$(SHARED_EXT) $(prefix)/lib/libgrpc++.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgrpc++.$(SHARED_EXT) $(prefix)/lib/libgrpc++.so.0
 	$(Q) ln -sf libgrpc++.$(SHARED_EXT) $(prefix)/lib/libgrpc++.so
 endif
 endif
@@ -2230,6 +2295,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc++_unsecure.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgrpc++_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc++_unsecure.so.0
 	$(Q) ln -sf libgrpc++_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc++_unsecure.so
 endif
 endif
@@ -2251,6 +2317,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/libgrpc_csharp_ext.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf libgrpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/libgrpc_csharp_ext.so.0
 	$(Q) ln -sf libgrpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/libgrpc_csharp_ext.so
 endif
 endif
@@ -3285,6 +3352,12 @@
     include/grpc++/impl/rpc_method.h \
     include/grpc++/impl/rpc_service_method.h \
     include/grpc++/impl/service_type.h \
+    include/grpc++/impl/sync.h \
+    include/grpc++/impl/sync_cxx11.h \
+    include/grpc++/impl/sync_no_cxx11.h \
+    include/grpc++/impl/thd.h \
+    include/grpc++/impl/thd_cxx11.h \
+    include/grpc++/impl/thd_no_cxx11.h \
     include/grpc++/server.h \
     include/grpc++/server_builder.h \
     include/grpc++/server_context.h \
@@ -3425,9 +3498,9 @@
 
 
 LIBGRPC++_TEST_UTIL_SRC = \
-    $(GENDIR)/test/cpp/util/messages.pb.cc \
-    $(GENDIR)/test/cpp/util/echo.pb.cc \
-    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc \
+    $(GENDIR)/test/cpp/util/messages.pb.cc $(GENDIR)/test/cpp/util/messages.grpc.pb.cc \
+    $(GENDIR)/test/cpp/util/echo.pb.cc $(GENDIR)/test/cpp/util/echo.grpc.pb.cc \
+    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc $(GENDIR)/test/cpp/util/echo_duplicate.grpc.pb.cc \
     test/cpp/util/cli_call.cc \
     test/cpp/util/create_test_channel.cc \
 
@@ -3488,8 +3561,8 @@
 
 
 
-$(OBJDIR)/$(CONFIG)/test/cpp/util/cli_call.o:     $(GENDIR)/test/cpp/util/messages.pb.cc    $(GENDIR)/test/cpp/util/echo.pb.cc    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/util/create_test_channel.o:     $(GENDIR)/test/cpp/util/messages.pb.cc    $(GENDIR)/test/cpp/util/echo.pb.cc    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/util/cli_call.o:     $(GENDIR)/test/cpp/util/messages.pb.cc $(GENDIR)/test/cpp/util/messages.grpc.pb.cc    $(GENDIR)/test/cpp/util/echo.pb.cc $(GENDIR)/test/cpp/util/echo.grpc.pb.cc    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc $(GENDIR)/test/cpp/util/echo_duplicate.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/util/create_test_channel.o:     $(GENDIR)/test/cpp/util/messages.pb.cc $(GENDIR)/test/cpp/util/messages.grpc.pb.cc    $(GENDIR)/test/cpp/util/echo.pb.cc $(GENDIR)/test/cpp/util/echo.grpc.pb.cc    $(GENDIR)/test/cpp/util/echo_duplicate.pb.cc $(GENDIR)/test/cpp/util/echo_duplicate.grpc.pb.cc
 
 
 LIBGRPC++_UNSECURE_SRC = \
@@ -3536,6 +3609,12 @@
     include/grpc++/impl/rpc_method.h \
     include/grpc++/impl/rpc_service_method.h \
     include/grpc++/impl/service_type.h \
+    include/grpc++/impl/sync.h \
+    include/grpc++/impl/sync_cxx11.h \
+    include/grpc++/impl/sync_no_cxx11.h \
+    include/grpc++/impl/thd.h \
+    include/grpc++/impl/thd_cxx11.h \
+    include/grpc++/impl/thd_no_cxx11.h \
     include/grpc++/server.h \
     include/grpc++/server_builder.h \
     include/grpc++/server_context.h \
@@ -3665,10 +3744,134 @@
 $(OBJDIR)/$(CONFIG)/src/compiler/ruby_generator.o: 
 
 
+LIBINTEROP_CLIENT_LIB_SRC = \
+    $(GENDIR)/test/cpp/interop/empty.pb.cc $(GENDIR)/test/cpp/interop/empty.grpc.pb.cc \
+    $(GENDIR)/test/cpp/interop/messages.pb.cc $(GENDIR)/test/cpp/interop/messages.grpc.pb.cc \
+    $(GENDIR)/test/cpp/interop/test.pb.cc $(GENDIR)/test/cpp/interop/test.grpc.pb.cc \
+    test/cpp/interop/client_helper.cc \
+    test/cpp/interop/interop_client.cc \
+
+
+LIBINTEROP_CLIENT_LIB_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBINTEROP_CLIENT_LIB_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL with ALPN.
+
+$(LIBDIR)/$(CONFIG)/libinterop_client_lib.a: openssl_dep_error
+
+
+else
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build a C++ library if you don't have protobuf - a bit overreached, but still okay.
+
+$(LIBDIR)/$(CONFIG)/libinterop_client_lib.a: protobuf_dep_error
+
+
+else
+
+ifneq ($(OPENSSL_DEP),)
+# This is to ensure the embedded OpenSSL is built beforehand, properly
+# installing headers to their final destination on the drive. We need this
+# otherwise parallel compilation will fail if a source is compiled first.
+test/cpp/interop/empty.proto: $(OPENSSL_DEP)
+test/cpp/interop/messages.proto: $(OPENSSL_DEP)
+test/cpp/interop/test.proto: $(OPENSSL_DEP)
+test/cpp/interop/client_helper.cc: $(OPENSSL_DEP)
+test/cpp/interop/interop_client.cc: $(OPENSSL_DEP)
+endif
+
+$(LIBDIR)/$(CONFIG)/libinterop_client_lib.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(PROTOBUF_DEP) $(LIBINTEROP_CLIENT_LIB_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a $(LIBINTEROP_CLIENT_LIB_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a
+endif
+
+
+
+
+endif
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBINTEROP_CLIENT_LIB_OBJS:.o=.dep)
+endif
+endif
+
+
+
+
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/client_helper.o:     $(GENDIR)/test/cpp/interop/empty.pb.cc $(GENDIR)/test/cpp/interop/empty.grpc.pb.cc    $(GENDIR)/test/cpp/interop/messages.pb.cc $(GENDIR)/test/cpp/interop/messages.grpc.pb.cc    $(GENDIR)/test/cpp/interop/test.pb.cc $(GENDIR)/test/cpp/interop/test.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/interop_client.o:     $(GENDIR)/test/cpp/interop/empty.pb.cc $(GENDIR)/test/cpp/interop/empty.grpc.pb.cc    $(GENDIR)/test/cpp/interop/messages.pb.cc $(GENDIR)/test/cpp/interop/messages.grpc.pb.cc    $(GENDIR)/test/cpp/interop/test.pb.cc $(GENDIR)/test/cpp/interop/test.grpc.pb.cc
+
+
+LIBINTEROP_SERVER_LIB_SRC = \
+    test/cpp/interop/server_helper.cc \
+
+
+LIBINTEROP_SERVER_LIB_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBINTEROP_SERVER_LIB_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL with ALPN.
+
+$(LIBDIR)/$(CONFIG)/libinterop_server_lib.a: openssl_dep_error
+
+
+else
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build a C++ library if you don't have protobuf - a bit overreached, but still okay.
+
+$(LIBDIR)/$(CONFIG)/libinterop_server_lib.a: protobuf_dep_error
+
+
+else
+
+ifneq ($(OPENSSL_DEP),)
+# This is to ensure the embedded OpenSSL is built beforehand, properly
+# installing headers to their final destination on the drive. We need this
+# otherwise parallel compilation will fail if a source is compiled first.
+test/cpp/interop/server_helper.cc: $(OPENSSL_DEP)
+endif
+
+$(LIBDIR)/$(CONFIG)/libinterop_server_lib.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(PROTOBUF_DEP) $(LIBINTEROP_SERVER_LIB_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBINTEROP_SERVER_LIB_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a
+endif
+
+
+
+
+endif
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBINTEROP_SERVER_LIB_OBJS:.o=.dep)
+endif
+endif
+
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/server_helper.o: 
+
+
 LIBPUBSUB_CLIENT_LIB_SRC = \
-    $(GENDIR)/examples/pubsub/label.pb.cc \
-    $(GENDIR)/examples/pubsub/empty.pb.cc \
-    $(GENDIR)/examples/pubsub/pubsub.pb.cc \
+    $(GENDIR)/examples/pubsub/label.pb.cc $(GENDIR)/examples/pubsub/label.grpc.pb.cc \
+    $(GENDIR)/examples/pubsub/empty.pb.cc $(GENDIR)/examples/pubsub/empty.grpc.pb.cc \
+    $(GENDIR)/examples/pubsub/pubsub.pb.cc $(GENDIR)/examples/pubsub/pubsub.grpc.pb.cc \
     examples/pubsub/publisher.cc \
     examples/pubsub/subscriber.cc \
 
@@ -3729,13 +3932,14 @@
 
 
 
-$(OBJDIR)/$(CONFIG)/examples/pubsub/publisher.o:     $(GENDIR)/examples/pubsub/label.pb.cc    $(GENDIR)/examples/pubsub/empty.pb.cc    $(GENDIR)/examples/pubsub/pubsub.pb.cc
-$(OBJDIR)/$(CONFIG)/examples/pubsub/subscriber.o:     $(GENDIR)/examples/pubsub/label.pb.cc    $(GENDIR)/examples/pubsub/empty.pb.cc    $(GENDIR)/examples/pubsub/pubsub.pb.cc
+$(OBJDIR)/$(CONFIG)/examples/pubsub/publisher.o:     $(GENDIR)/examples/pubsub/label.pb.cc $(GENDIR)/examples/pubsub/label.grpc.pb.cc    $(GENDIR)/examples/pubsub/empty.pb.cc $(GENDIR)/examples/pubsub/empty.grpc.pb.cc    $(GENDIR)/examples/pubsub/pubsub.pb.cc $(GENDIR)/examples/pubsub/pubsub.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/examples/pubsub/subscriber.o:     $(GENDIR)/examples/pubsub/label.pb.cc $(GENDIR)/examples/pubsub/label.grpc.pb.cc    $(GENDIR)/examples/pubsub/empty.pb.cc $(GENDIR)/examples/pubsub/empty.grpc.pb.cc    $(GENDIR)/examples/pubsub/pubsub.pb.cc $(GENDIR)/examples/pubsub/pubsub.grpc.pb.cc
 
 
 LIBQPS_SRC = \
-    $(GENDIR)/test/cpp/qps/qpstest.pb.cc \
+    $(GENDIR)/test/cpp/qps/qpstest.pb.cc $(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc \
     test/cpp/qps/driver.cc \
+    test/cpp/qps/report.cc \
     test/cpp/qps/timer.cc \
 
 
@@ -3765,6 +3969,7 @@
 # otherwise parallel compilation will fail if a source is compiled first.
 test/cpp/qps/qpstest.proto: $(OPENSSL_DEP)
 test/cpp/qps/driver.cc: $(OPENSSL_DEP)
+test/cpp/qps/report.cc: $(OPENSSL_DEP)
 test/cpp/qps/timer.cc: $(OPENSSL_DEP)
 endif
 
@@ -3791,8 +3996,9 @@
 endif
 
 
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o:     $(GENDIR)/test/cpp/qps/qpstest.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o:     $(GENDIR)/test/cpp/qps/qpstest.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o:     $(GENDIR)/test/cpp/qps/qpstest.pb.cc $(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o:     $(GENDIR)/test/cpp/qps/qpstest.pb.cc $(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o:     $(GENDIR)/test/cpp/qps/qpstest.pb.cc $(GENDIR)/test/cpp/qps/qpstest.grpc.pb.cc
 
 
 LIBGRPC_CSHARP_EXT_SRC = \
@@ -8465,9 +8671,6 @@
 
 
 INTEROP_CLIENT_SRC = \
-    $(GENDIR)/test/cpp/interop/empty.pb.cc \
-    $(GENDIR)/test/cpp/interop/messages.pb.cc \
-    $(GENDIR)/test/cpp/interop/test.pb.cc \
     test/cpp/interop/client.cc \
 
 INTEROP_CLIENT_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INTEROP_CLIENT_SRC))))
@@ -8489,19 +8692,16 @@
 
 else
 
-$(BINDIR)/$(CONFIG)/interop_client: $(PROTOBUF_DEP) $(INTEROP_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(BINDIR)/$(CONFIG)/interop_client: $(PROTOBUF_DEP) $(INTEROP_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) $(INTEROP_CLIENT_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) -o $(BINDIR)/$(CONFIG)/interop_client
+	$(Q) $(LDXX) $(LDFLAGS) $(INTEROP_CLIENT_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) -o $(BINDIR)/$(CONFIG)/interop_client
 
 endif
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/empty.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/messages.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/client.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/client.o:  $(LIBDIR)/$(CONFIG)/libinterop_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_interop_client: $(INTEROP_CLIENT_OBJS:.o=.dep)
 
@@ -8513,9 +8713,9 @@
 
 
 INTEROP_SERVER_SRC = \
-    $(GENDIR)/test/cpp/interop/empty.pb.cc \
-    $(GENDIR)/test/cpp/interop/messages.pb.cc \
-    $(GENDIR)/test/cpp/interop/test.pb.cc \
+    $(GENDIR)/test/cpp/interop/empty.pb.cc $(GENDIR)/test/cpp/interop/empty.grpc.pb.cc \
+    $(GENDIR)/test/cpp/interop/messages.pb.cc $(GENDIR)/test/cpp/interop/messages.grpc.pb.cc \
+    $(GENDIR)/test/cpp/interop/test.pb.cc $(GENDIR)/test/cpp/interop/test.grpc.pb.cc \
     test/cpp/interop/server.cc \
 
 INTEROP_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INTEROP_SERVER_SRC))))
@@ -8537,19 +8737,19 @@
 
 else
 
-$(BINDIR)/$(CONFIG)/interop_server: $(PROTOBUF_DEP) $(INTEROP_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(BINDIR)/$(CONFIG)/interop_server: $(PROTOBUF_DEP) $(INTEROP_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) $(INTEROP_SERVER_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) -o $(BINDIR)/$(CONFIG)/interop_server
+	$(Q) $(LDXX) $(LDFLAGS) $(INTEROP_SERVER_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) -o $(BINDIR)/$(CONFIG)/interop_server
 
 endif
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/empty.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/messages.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/server.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/empty.o:  $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/messages.o:  $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/test.o:  $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/server.o:  $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_interop_server: $(INTEROP_SERVER_OBJS:.o=.dep)
 
@@ -8770,6 +8970,48 @@
 endif
 
 
+QPS_SMOKE_TEST_SRC = \
+    test/cpp/qps/smoke_test.cc \
+
+QPS_SMOKE_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(QPS_SMOKE_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/qps_smoke_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)/$(CONFIG)/qps_smoke_test: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/qps_smoke_test: $(PROTOBUF_DEP) $(QPS_SMOKE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) $(QPS_SMOKE_TEST_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(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) -o $(BINDIR)/$(CONFIG)/qps_smoke_test
+
+endif
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/smoke_test.o:  $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_qps_smoke_test: $(QPS_SMOKE_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(QPS_SMOKE_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 QPS_WORKER_SRC = \
     test/cpp/qps/client_async.cc \
     test/cpp/qps/client_sync.cc \
diff --git a/build.json b/build.json
index 4e1e9a7..d00b039 100644
--- a/build.json
+++ b/build.json
@@ -29,6 +29,12 @@
         "include/grpc++/impl/rpc_method.h",
         "include/grpc++/impl/rpc_service_method.h",
         "include/grpc++/impl/service_type.h",
+        "include/grpc++/impl/sync.h",
+        "include/grpc++/impl/sync_cxx11.h",
+        "include/grpc++/impl/sync_no_cxx11.h",
+        "include/grpc++/impl/thd.h",
+        "include/grpc++/impl/thd_cxx11.h",
+        "include/grpc++/impl/thd_no_cxx11.h",
         "include/grpc++/server.h",
         "include/grpc++/server_builder.h",
         "include/grpc++/server_context.h",
@@ -466,6 +472,10 @@
       "name": "grpc++",
       "build": "all",
       "language": "c++",
+      "headers": [
+        "src/cpp/client/secure_credentials.h",
+        "src/cpp/server/secure_server_credentials.h"
+      ],
       "src": [
         "src/cpp/client/secure_credentials.cc",
         "src/cpp/server/secure_server_credentials.cc"
@@ -534,6 +544,38 @@
       "secure": "no"
     },
     {
+      "name": "interop_client_lib",
+      "build": "private",
+      "language": "c++",
+      "src": [
+        "test/cpp/interop/empty.proto",
+        "test/cpp/interop/messages.proto",
+        "test/cpp/interop/test.proto",
+        "test/cpp/interop/client_helper.cc",
+        "test/cpp/interop/interop_client.cc"
+      ],
+      "deps": [
+        "grpc++_test_util",
+        "grpc++",
+        "grpc",
+        "gpr"
+      ]
+    },
+    {
+      "name": "interop_server_lib",
+      "build": "private",
+      "language": "c++",
+      "src": [
+        "test/cpp/interop/server_helper.cc"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc++",
+        "grpc",
+        "gpr"
+      ]
+    },
+    {
       "name": "pubsub_client_lib",
       "build": "private",
       "language": "c++",
@@ -556,11 +598,13 @@
       "language": "c++",
       "headers": [
         "test/cpp/qps/driver.h",
+        "test/cpp/qps/report.h",
         "test/cpp/qps/timer.h"
       ],
       "src": [
         "test/cpp/qps/qpstest.proto",
         "test/cpp/qps/driver.cc",
+        "test/cpp/qps/report.cc",
         "test/cpp/qps/timer.cc"
       ]
     },
@@ -1878,12 +1922,10 @@
       "run": false,
       "language": "c++",
       "src": [
-        "test/cpp/interop/empty.proto",
-        "test/cpp/interop/messages.proto",
-        "test/cpp/interop/test.proto",
         "test/cpp/interop/client.cc"
       ],
       "deps": [
+        "interop_client_lib",
         "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
@@ -1904,6 +1946,7 @@
         "test/cpp/interop/server.cc"
       ],
       "deps": [
+        "interop_server_lib",
         "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
@@ -1996,6 +2039,24 @@
       ]
     },
     {
+      "name": "qps_smoke_test",
+      "build": "test",
+      "run": false,
+      "language": "c++",
+      "src": [
+        "test/cpp/qps/smoke_test.cc"
+      ],
+      "deps": [
+        "qps",
+        "grpc++_test_util",
+        "grpc_test_util",
+        "grpc++",
+        "grpc",
+        "gpr_test_util",
+        "gpr"
+      ]
+    },
+    {
       "name": "qps_worker",
       "build": "test",
       "run": false,
diff --git a/examples/pubsub/publisher.h b/examples/pubsub/publisher.h
index c90406f..33bcf98 100644
--- a/examples/pubsub/publisher.h
+++ b/examples/pubsub/publisher.h
@@ -37,7 +37,7 @@
 #include <grpc++/channel_interface.h>
 #include <grpc++/status.h>
 
-#include "examples/pubsub/pubsub.pb.h"
+#include "examples/pubsub/pubsub.grpc.pb.h"
 
 namespace grpc {
 namespace examples {
diff --git a/examples/pubsub/subscriber.h b/examples/pubsub/subscriber.h
index c587c01..40ab454 100644
--- a/examples/pubsub/subscriber.h
+++ b/examples/pubsub/subscriber.h
@@ -37,7 +37,7 @@
 #include <grpc++/channel_interface.h>
 #include <grpc++/status.h>
 
-#include "examples/pubsub/pubsub.pb.h"
+#include "examples/pubsub/pubsub.grpc.pb.h"
 
 namespace grpc {
 namespace examples {
diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index 0a84c73..c78f033 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc
@@ -109,8 +109,47 @@
   }
   return false;
 }
+
+grpc::string FilenameIdentifier(const grpc::string& filename) {
+  grpc::string result;
+  for (unsigned i = 0; i < filename.size(); i++) {
+    char c = filename[i];
+    if (isalnum(c)) {
+      result.push_back(c);
+    } else {
+      static char hex[] = "0123456789abcdef";
+      result.push_back('_');
+      result.push_back(hex[(c >> 4) & 0xf]);
+      result.push_back(hex[c & 0xf]);
+    }
+  }
+  return result;
+}
 }  // namespace
 
+grpc::string GetHeaderPrologue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params) {
+  grpc::string output;
+  grpc::protobuf::io::StringOutputStream output_stream(&output);
+  grpc::protobuf::io::Printer printer(&output_stream, '$');
+  std::map<grpc::string, grpc::string> vars;
+
+  vars["filename"] = file->name();
+  vars["filename_identifier"] = FilenameIdentifier(file->name());
+  vars["filename_base"] = grpc_generator::StripProto(file->name());
+
+  printer.Print(vars, "// Generated by the gRPC protobuf plugin.\n");
+  printer.Print(vars, "// If you make any local change, they will be lost.\n");
+  printer.Print(vars, "// source: $filename$\n");
+  printer.Print(vars, "#ifndef GRPC_$filename_identifier$__INCLUDED\n");
+  printer.Print(vars, "#define GRPC_$filename_identifier$__INCLUDED\n");
+  printer.Print(vars, "\n");
+  printer.Print(vars, "#include \"$filename_base$.pb.h\"\n");
+  printer.Print(vars, "\n");
+
+  return output;
+}
+
 grpc::string GetHeaderIncludes(const grpc::protobuf::FileDescriptor *file,
                                const Parameters &params) {
   grpc::string temp =
@@ -156,17 +195,21 @@
         "class ServerAsyncReaderWriter;\n");
   }
   temp.append("}  // namespace grpc\n");
-  return temp;
-}
 
-grpc::string GetSourceIncludes(const Parameters &param) {
-  return "#include <grpc++/async_unary_call.h>\n"
-         "#include <grpc++/channel_interface.h>\n"
-         "#include <grpc++/impl/client_unary_call.h>\n"
-         "#include <grpc++/impl/rpc_method.h>\n"
-         "#include <grpc++/impl/rpc_service_method.h>\n"
-         "#include <grpc++/impl/service_type.h>\n"
-         "#include <grpc++/stream.h>\n";
+  temp.append("\n");
+
+  std::vector<grpc::string> parts =
+    grpc_generator::tokenize(file->package(), ".");
+
+  for (auto part = parts.begin(); part != parts.end(); part++) {
+    temp.append("namespace ");
+    temp.append(*part);
+    temp.append(" {\n");
+  }
+
+  temp.append("\n");
+
+  return temp;
 }
 
 void PrintHeaderClientMethod(grpc::protobuf::io::Printer *printer,
@@ -378,6 +421,78 @@
   return output;
 }
 
+grpc::string GetHeaderEpilogue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params) {
+  grpc::string output;
+  grpc::protobuf::io::StringOutputStream output_stream(&output);
+  grpc::protobuf::io::Printer printer(&output_stream, '$');
+  std::map<grpc::string, grpc::string> vars;
+
+  vars["filename"] = file->name();
+  vars["filename_identifier"] = FilenameIdentifier(file->name());
+
+  std::vector<grpc::string> parts =
+    grpc_generator::tokenize(file->package(), ".");
+
+  for (auto part = parts.rbegin(); part != parts.rend(); part++) {
+    vars["part"] = *part;
+    printer.Print(vars, "}  // namespace $part$\n");
+  }
+
+  printer.Print(vars, "\n\n");
+  printer.Print(vars, "#endif  // GRPC_$filename_identifier$__INCLUDED\n");
+
+  return output;
+}
+
+grpc::string GetSourcePrologue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params) {
+  grpc::string output;
+  grpc::protobuf::io::StringOutputStream output_stream(&output);
+  grpc::protobuf::io::Printer printer(&output_stream, '$');
+  std::map<grpc::string, grpc::string> vars;
+
+  vars["filename"] = file->name();
+  vars["filename_base"] = grpc_generator::StripProto(file->name());
+
+  printer.Print(vars, "// Generated by the gRPC protobuf 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 \"$filename_base$.pb.h\"\n");
+  printer.Print(vars, "#include \"$filename_base$.grpc.pb.h\"\n");
+  printer.Print(vars, "\n");
+
+  return output;
+}
+
+grpc::string GetSourceIncludes(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &param) {
+  grpc::string output;
+  grpc::protobuf::io::StringOutputStream output_stream(&output);
+  grpc::protobuf::io::Printer printer(&output_stream, '$');
+  std::map<grpc::string, grpc::string> vars;
+
+  printer.Print(vars, "#include <grpc++/async_unary_call.h>\n");
+  printer.Print(vars, "#include <grpc++/channel_interface.h>\n");
+  printer.Print(vars, "#include <grpc++/impl/client_unary_call.h>\n");
+  printer.Print(vars, "#include <grpc++/impl/rpc_method.h>\n");
+  printer.Print(vars, "#include <grpc++/impl/rpc_service_method.h>\n");
+  printer.Print(vars, "#include <grpc++/impl/service_type.h>\n");
+  printer.Print(vars, "#include <grpc++/stream.h>\n");
+
+  std::vector<grpc::string> parts =
+    grpc_generator::tokenize(file->package(), ".");
+
+  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 PrintSourceClientMethod(grpc::protobuf::io::Printer *printer,
                              const grpc::protobuf::MethodDescriptor *method,
                              std::map<grpc::string, grpc::string> *vars) {
@@ -741,4 +856,22 @@
   return output;
 }
 
+grpc::string GetSourceEpilogue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params) {
+  grpc::string temp;
+
+  std::vector<grpc::string> parts =
+    grpc_generator::tokenize(file->package(), ".");
+
+  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 04ad71c..70c2e98 100644
--- a/src/compiler/cpp_generator.h
+++ b/src/compiler/cpp_generator.h
@@ -44,12 +44,25 @@
   grpc::string services_namespace;
 };
 
+// Return the prologue of the generated header file.
+grpc::string GetHeaderPrologue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params);
+
 // Return the includes needed for generated header file.
 grpc::string GetHeaderIncludes(const grpc::protobuf::FileDescriptor *file,
                                const Parameters &params);
 
 // Return the includes needed for generated source file.
-grpc::string GetSourceIncludes(const Parameters &params);
+grpc::string GetSourceIncludes(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params);
+
+// Return the epilogue of the generated header file.
+grpc::string GetHeaderEpilogue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params);
+
+// Return the prologue of the generated source file.
+grpc::string GetSourcePrologue(const grpc::protobuf::FileDescriptor *file,
+                               const Parameters &params);
 
 // Return the services for generated header file.
 grpc::string GetHeaderServices(const grpc::protobuf::FileDescriptor *file,
@@ -59,6 +72,10 @@
 grpc::string GetSourceServices(const grpc::protobuf::FileDescriptor *file,
                                const Parameters &params);
 
+// Return the epilogue of the generated source file.
+grpc::string GetSourceEpilogue(const grpc::protobuf::FileDescriptor *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 acbe128..88c7049 100644
--- a/src/compiler/cpp_plugin.cc
+++ b/src/compiler/cpp_plugin.cc
@@ -58,11 +58,6 @@
       return false;
     }
 
-    if (file->service_count() == 0) {
-      // No services.  Do nothing.
-      return true;
-    }
-
     grpc_cpp_generator::Parameters generator_parameters;
 
     if (!parameter.empty()) {
@@ -84,16 +79,27 @@
 
     grpc::string file_name = grpc_generator::StripProto(file->name());
 
-    // Generate .pb.h
-    Insert(context, file_name + ".pb.h", "includes",
-           grpc_cpp_generator::GetHeaderIncludes(file, generator_parameters));
-    Insert(context, file_name + ".pb.h", "namespace_scope",
-           grpc_cpp_generator::GetHeaderServices(file, generator_parameters));
-    // Generate .pb.cc
-    Insert(context, file_name + ".pb.cc", "includes",
-           grpc_cpp_generator::GetSourceIncludes(generator_parameters));
-    Insert(context, file_name + ".pb.cc", "namespace_scope",
-           grpc_cpp_generator::GetSourceServices(file, generator_parameters));
+    grpc::string header_code =
+        grpc_cpp_generator::GetHeaderPrologue(file, generator_parameters) +
+        grpc_cpp_generator::GetHeaderIncludes(file, generator_parameters) +
+        grpc_cpp_generator::GetHeaderServices(file, generator_parameters) +
+        grpc_cpp_generator::GetHeaderEpilogue(file, generator_parameters);
+    std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> header_output(
+        context->Open(file_name + ".grpc.pb.h"));
+    grpc::protobuf::io::CodedOutputStream header_coded_out(
+        header_output.get());
+    header_coded_out.WriteRaw(header_code.data(), header_code.size());
+
+    grpc::string source_code =
+        grpc_cpp_generator::GetSourcePrologue(file, generator_parameters) +
+        grpc_cpp_generator::GetSourceIncludes(file, generator_parameters) +
+        grpc_cpp_generator::GetSourceServices(file, generator_parameters) +
+        grpc_cpp_generator::GetSourceEpilogue(file, generator_parameters);
+    std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> source_output(
+        context->Open(file_name + ".grpc.pb.cc"));
+    grpc::protobuf::io::CodedOutputStream source_coded_out(
+        source_output.get());
+    source_coded_out.WriteRaw(source_code.data(), source_code.size());
 
     return true;
   }
diff --git a/src/core/iomgr/pollset_multipoller_with_poll_posix.c b/src/core/iomgr/pollset_multipoller_with_poll_posix.c
index 7570ff1..bcef7c3 100644
--- a/src/core/iomgr/pollset_multipoller_with_poll_posix.c
+++ b/src/core/iomgr/pollset_multipoller_with_poll_posix.c
@@ -172,6 +172,9 @@
   }
 
   r = poll(h->pfds, h->pfd_count, timeout);
+
+  end_polling(pollset);
+
   if (r < 0) {
     if (errno != EINTR) {
       gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));
@@ -192,7 +195,6 @@
     }
   }
   grpc_pollset_kick_post_poll(&pollset->kick_state);
-  end_polling(pollset);
 
   gpr_mu_lock(&pollset->mu);
   pollset->counter = 0;
diff --git a/src/core/iomgr/pollset_posix.c b/src/core/iomgr/pollset_posix.c
index 0bb722e..03fd94f 100644
--- a/src/core/iomgr/pollset_posix.c
+++ b/src/core/iomgr/pollset_posix.c
@@ -396,6 +396,9 @@
   pfd[1].events = grpc_fd_begin_poll(fd, pollset, POLLIN, POLLOUT, &fd_watcher);
 
   r = poll(pfd, GPR_ARRAY_SIZE(pfd), timeout);
+
+  grpc_fd_end_poll(&fd_watcher);
+
   if (r < 0) {
     if (errno != EINTR) {
       gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));
@@ -415,7 +418,6 @@
   }
 
   grpc_pollset_kick_post_poll(&pollset->kick_state);
-  grpc_fd_end_poll(&fd_watcher);
 
   gpr_mu_lock(&pollset->mu);
   pollset->counter = 0;
diff --git a/src/core/iomgr/tcp_server.h b/src/core/iomgr/tcp_server.h
index 68ee85c..66bb3ef 100644
--- a/src/core/iomgr/tcp_server.h
+++ b/src/core/iomgr/tcp_server.h
@@ -71,6 +71,8 @@
    up when grpc_tcp_server_destroy is called. */
 int grpc_tcp_server_get_fd(grpc_tcp_server *s, unsigned index);
 
-void grpc_tcp_server_destroy(grpc_tcp_server *server);
+void grpc_tcp_server_destroy(grpc_tcp_server *server,
+                             void (*shutdown_done)(void *shutdown_done_arg),
+                             void *shutdown_done_arg);
 
-#endif  /* GRPC_INTERNAL_CORE_IOMGR_TCP_SERVER_H */
+#endif /* GRPC_INTERNAL_CORE_IOMGR_TCP_SERVER_H */
diff --git a/src/core/iomgr/tcp_server_posix.c b/src/core/iomgr/tcp_server_posix.c
index 90b7eb4..895f85f 100644
--- a/src/core/iomgr/tcp_server_posix.c
+++ b/src/core/iomgr/tcp_server_posix.c
@@ -102,12 +102,18 @@
   gpr_cv cv;
 
   /* active port count: how many ports are actually still listening */
-  int active_ports;
+  size_t active_ports;
+  /* destroyed port count: how many ports are completely destroyed */
+  size_t destroyed_ports;
 
   /* all listening ports */
   server_port *ports;
   size_t nports;
   size_t port_capacity;
+
+  /* shutdown callback */
+  void (*shutdown_complete)(void *);
+  void *shutdown_complete_arg;
 };
 
 grpc_tcp_server *grpc_tcp_server_create(void) {
@@ -115,6 +121,7 @@
   gpr_mu_init(&s->mu);
   gpr_cv_init(&s->cv);
   s->active_ports = 0;
+  s->destroyed_ports = 0;
   s->cb = NULL;
   s->cb_arg = NULL;
   s->ports = gpr_malloc(sizeof(server_port) * INIT_PORT_CAP);
@@ -123,29 +130,64 @@
   return s;
 }
 
-void grpc_tcp_server_destroy(grpc_tcp_server *s) {
+static void finish_shutdown(grpc_tcp_server *s) {
+  s->shutdown_complete(s->shutdown_complete_arg);
+
+  gpr_mu_destroy(&s->mu);
+  gpr_cv_destroy(&s->cv);
+
+  gpr_free(s->ports);
+  gpr_free(s);
+}
+
+static void destroyed_port(void *server, int success) {
+  grpc_tcp_server *s = server;
+  gpr_mu_lock(&s->mu);
+  s->destroyed_ports++;
+  if (s->destroyed_ports == s->nports) {
+    gpr_mu_unlock(&s->mu);
+    finish_shutdown(s);
+  } else {
+    gpr_mu_unlock(&s->mu);
+  }
+}
+
+static void dont_care_about_shutdown_completion(void *ignored) {}
+
+void grpc_tcp_server_destroy(
+    grpc_tcp_server *s, void (*shutdown_complete)(void *shutdown_complete_arg),
+    void *shutdown_complete_arg) {
   size_t i;
   gpr_mu_lock(&s->mu);
+
+  s->shutdown_complete = shutdown_complete
+                             ? shutdown_complete
+                             : dont_care_about_shutdown_completion;
+  s->shutdown_complete_arg = shutdown_complete_arg;
+
   /* shutdown all fd's */
   for (i = 0; i < s->nports; i++) {
     grpc_fd_shutdown(s->ports[i].emfd);
   }
   /* wait while that happens */
+  /* TODO(ctiller): make this asynchronous also */
   while (s->active_ports) {
     gpr_cv_wait(&s->cv, &s->mu, gpr_inf_future);
   }
   gpr_mu_unlock(&s->mu);
 
   /* delete ALL the things */
-  for (i = 0; i < s->nports; i++) {
-    server_port *sp = &s->ports[i];
-    if (sp->addr.sockaddr.sa_family == AF_UNIX) {
-      unlink_if_unix_domain_socket(&sp->addr.un);
+  if (s->nports) {
+    for (i = 0; i < s->nports; i++) {
+      server_port *sp = &s->ports[i];
+      if (sp->addr.sockaddr.sa_family == AF_UNIX) {
+        unlink_if_unix_domain_socket(&sp->addr.un);
+      }
+      grpc_fd_orphan(sp->emfd, destroyed_port, s);
     }
-    grpc_fd_orphan(sp->emfd, NULL, NULL);
+  } else {
+    finish_shutdown(s);
   }
-  gpr_free(s->ports);
-  gpr_free(s);
 }
 
 /* get max listen queue size on linux */
diff --git a/src/core/iomgr/tcp_server_windows.c b/src/core/iomgr/tcp_server_windows.c
index 0c3ab1d..a43d567 100644
--- a/src/core/iomgr/tcp_server_windows.c
+++ b/src/core/iomgr/tcp_server_windows.c
@@ -92,7 +92,9 @@
   return s;
 }
 
-void grpc_tcp_server_destroy(grpc_tcp_server *s) {
+void grpc_tcp_server_destroy(grpc_tcp_server *s,
+                             void (*shutdown_done)(void *shutdown_done_arg),
+                             void *shutdown_done_arg) {
   size_t i;
   gpr_mu_lock(&s->mu);
   /* shutdown all fd's */
@@ -112,11 +114,15 @@
   }
   gpr_free(s->ports);
   gpr_free(s);
+
+  if (shutdown_done) {
+    shutdown_done(shutdown_done_arg);
+  }
 }
 
 /* Prepare a recently-created socket for listening. */
-static int prepare_socket(SOCKET sock,
-                          const struct sockaddr *addr, int addr_len) {
+static int prepare_socket(SOCKET sock, const struct sockaddr *addr,
+                          int addr_len) {
   struct sockaddr_storage sockname_temp;
   socklen_t sockname_len;
 
@@ -147,15 +153,15 @@
   }
 
   sockname_len = sizeof(sockname_temp);
-  if (getsockname(sock, (struct sockaddr *) &sockname_temp, &sockname_len)
-        == SOCKET_ERROR) {
+  if (getsockname(sock, (struct sockaddr *)&sockname_temp, &sockname_len) ==
+      SOCKET_ERROR) {
     char *utf8_message = gpr_format_message(WSAGetLastError());
     gpr_log(GPR_ERROR, "getsockname: %s", utf8_message);
     gpr_free(utf8_message);
     goto error;
   }
 
-  return grpc_sockaddr_get_port((struct sockaddr *) &sockname_temp);
+  return grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp);
 
 error:
   if (sock != INVALID_SOCKET) closesocket(sock);
@@ -221,8 +227,7 @@
     DWORD transfered_bytes = 0;
     DWORD flags;
     BOOL wsa_success = WSAGetOverlappedResult(sock, &info->overlapped,
-                                              &transfered_bytes, FALSE,
-                                              &flags);
+                                              &transfered_bytes, FALSE, &flags);
     if (!wsa_success) {
       char *utf8_message = gpr_format_message(WSAGetLastError());
       gpr_log(GPR_ERROR, "on_accept error: %s", utf8_message);
@@ -257,9 +262,9 @@
 
   if (sock == INVALID_SOCKET) return -1;
 
-  status = WSAIoctl(sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
-                    &guid, sizeof(guid), &AcceptEx, sizeof(AcceptEx),
-                    &ioctl_num_bytes, NULL, NULL);
+  status =
+      WSAIoctl(sock, SIO_GET_EXTENSION_FUNCTION_POINTER, &guid, sizeof(guid),
+               &AcceptEx, sizeof(AcceptEx), &ioctl_num_bytes, NULL, NULL);
 
   if (status != 0) {
     char *utf8_message = gpr_format_message(WSAGetLastError());
@@ -307,9 +312,8 @@
     for (i = 0; i < s->nports; i++) {
       sockname_len = sizeof(sockname_temp);
       if (0 == getsockname(s->ports[i].socket->socket,
-                           (struct sockaddr *) &sockname_temp,
-                           &sockname_len)) {
-        port = grpc_sockaddr_get_port((struct sockaddr *) &sockname_temp);
+                           (struct sockaddr *)&sockname_temp, &sockname_len)) {
+        port = grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp);
         if (port > 0) {
           allocated_addr = malloc(addr_len);
           memcpy(allocated_addr, addr, addr_len);
@@ -330,7 +334,7 @@
   if (grpc_sockaddr_is_wildcard(addr, &port)) {
     grpc_sockaddr_make_wildcard6(port, &wildcard);
 
-    addr = (struct sockaddr *) &wildcard;
+    addr = (struct sockaddr *)&wildcard;
     addr_len = sizeof(wildcard);
   }
 
@@ -369,4 +373,4 @@
   gpr_mu_unlock(&s->mu);
 }
 
-#endif  /* GPR_WINSOCK_SOCKET */
+#endif /* GPR_WINSOCK_SOCKET */
diff --git a/src/core/security/server_secure_chttp2.c b/src/core/security/server_secure_chttp2.c
index c155b80..0812727 100644
--- a/src/core/security/server_secure_chttp2.c
+++ b/src/core/security/server_secure_chttp2.c
@@ -85,10 +85,10 @@
   if (status == GRPC_SECURITY_OK) {
     gpr_mu_lock(&state->mu);
     if (!state->is_shutdown) {
-      grpc_create_chttp2_transport(
-          setup_transport, state->server,
-          grpc_server_get_channel_args(state->server),
-          secure_endpoint, NULL, 0, grpc_mdctx_create(), 0);
+      grpc_create_chttp2_transport(setup_transport, state->server,
+                                   grpc_server_get_channel_args(state->server),
+                                   secure_endpoint, NULL, 0,
+                                   grpc_mdctx_create(), 0);
     } else {
       /* We need to consume this here, because the server may already have gone
        * away. */
@@ -104,7 +104,8 @@
 static void on_accept(void *statep, grpc_endpoint *tcp) {
   grpc_server_secure_state *state = statep;
   state_ref(state);
-  grpc_setup_secure_transport(state->ctx, tcp, on_secure_transport_setup_done, state);
+  grpc_setup_secure_transport(state->ctx, tcp, on_secure_transport_setup_done,
+                              state);
 }
 
 /* Server callback: start listening on our ports */
@@ -120,12 +121,14 @@
   grpc_server_secure_state *state = statep;
   gpr_mu_lock(&state->mu);
   state->is_shutdown = 1;
-  grpc_tcp_server_destroy(state->tcp);
+  grpc_tcp_server_destroy(state->tcp, grpc_server_listener_destroy_done,
+                          server);
   gpr_mu_unlock(&state->mu);
   state_unref(state);
 }
 
-int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr, grpc_server_credentials *creds) {
+int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr,
+                                      grpc_server_credentials *creds) {
   grpc_resolved_addresses *resolved = NULL;
   grpc_tcp_server *tcp = NULL;
   grpc_server_secure_state *state = NULL;
@@ -213,7 +216,7 @@
     grpc_resolved_addresses_destroy(resolved);
   }
   if (tcp) {
-    grpc_tcp_server_destroy(tcp);
+    grpc_tcp_server_destroy(tcp, NULL, NULL);
   }
   if (state) {
     gpr_free(state);
diff --git a/src/core/surface/completion_queue.c b/src/core/surface/completion_queue.c
index 6a1d83c..24f4a05 100644
--- a/src/core/surface/completion_queue.c
+++ b/src/core/surface/completion_queue.c
@@ -432,3 +432,11 @@
 grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc) {
   return &cc->pollset;
 }
+
+void grpc_cq_hack_spin_pollset(grpc_completion_queue *cc) {
+  gpr_mu_lock(GRPC_POLLSET_MU(&cc->pollset));
+  grpc_pollset_kick(&cc->pollset);
+  grpc_pollset_work(&cc->pollset,
+                    gpr_time_add(gpr_now(), gpr_time_from_millis(100)));
+  gpr_mu_unlock(GRPC_POLLSET_MU(&cc->pollset));
+}
diff --git a/src/core/surface/completion_queue.h b/src/core/surface/completion_queue.h
index 3054264..3a7cc99 100644
--- a/src/core/surface/completion_queue.h
+++ b/src/core/surface/completion_queue.h
@@ -114,4 +114,6 @@
 
 grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc);
 
-#endif  /* GRPC_INTERNAL_CORE_SURFACE_COMPLETION_QUEUE_H */
+void grpc_cq_hack_spin_pollset(grpc_completion_queue *cc);
+
+#endif /* GRPC_INTERNAL_CORE_SURFACE_COMPLETION_QUEUE_H */
diff --git a/src/core/surface/server.c b/src/core/surface/server.c
index 424734c..17cba9a 100644
--- a/src/core/surface/server.c
+++ b/src/core/surface/server.c
@@ -137,6 +137,7 @@
   size_t cq_count;
 
   gpr_mu mu;
+  gpr_cv cv;
 
   registered_method *registered_methods;
   requested_call_array requested_calls;
@@ -149,6 +150,7 @@
   channel_data root_channel_data;
 
   listener *listeners;
+  int listeners_destroyed;
   gpr_refcount internal_refcount;
 };
 
@@ -263,6 +265,7 @@
   if (gpr_unref(&server->internal_refcount)) {
     grpc_channel_args_destroy(server->channel_args);
     gpr_mu_destroy(&server->mu);
+    gpr_cv_destroy(&server->cv);
     gpr_free(server->channel_filters);
     requested_call_array_destroy(&server->requested_calls);
     while ((rm = server->registered_methods) != NULL) {
@@ -589,9 +592,8 @@
 }
 
 static const grpc_channel_filter server_surface_filter = {
-    call_op,           channel_op,           sizeof(call_data),
-    init_call_elem,    destroy_call_elem,    sizeof(channel_data),
-    init_channel_elem, destroy_channel_elem, "server",
+    call_op, channel_op, sizeof(call_data), init_call_elem, destroy_call_elem,
+    sizeof(channel_data), init_channel_elem, destroy_channel_elem, "server",
 };
 
 static void addcq(grpc_server *server, grpc_completion_queue *cq) {
@@ -620,6 +622,7 @@
   if (cq) addcq(server, cq);
 
   gpr_mu_init(&server->mu);
+  gpr_cv_init(&server->cv);
 
   server->unregistered_cq = cq;
   /* decremented by grpc_server_destroy */
@@ -733,7 +736,8 @@
   channel = grpc_channel_create_from_filters(filters, num_filters,
                                              s->channel_args, mdctx, 0);
   chand = (channel_data *)grpc_channel_stack_element(
-              grpc_channel_get_channel_stack(channel), 0)->channel_data;
+              grpc_channel_get_channel_stack(channel), 0)
+              ->channel_data;
   chand->server = s;
   server_ref(s);
   chand->channel = channel;
@@ -754,7 +758,7 @@
       method = grpc_mdstr_from_string(mdctx, rm->method);
       hash = GRPC_MDSTR_KV_HASH(host ? host->hash : 0, method->hash);
       for (probes = 0; chand->registered_methods[(hash + probes) % slots]
-                               .server_registered_method != NULL;
+                           .server_registered_method != NULL;
            probes++)
         ;
       if (probes > max_probes) max_probes = probes;
@@ -781,6 +785,15 @@
   return result;
 }
 
+static int num_listeners(grpc_server *server) {
+  listener *l;
+  int n = 0;
+  for (l = server->listeners; l; l = l->next) {
+    n++;
+  }
+  return n;
+}
+
 static void shutdown_internal(grpc_server *server, gpr_uint8 have_shutdown_tag,
                               void *shutdown_tag) {
   listener *l;
@@ -878,11 +891,6 @@
   for (l = server->listeners; l; l = l->next) {
     l->destroy(server, l->arg);
   }
-  while (server->listeners) {
-    l = server->listeners;
-    server->listeners = l->next;
-    gpr_free(l);
-  }
 }
 
 void grpc_server_shutdown(grpc_server *server) {
@@ -893,8 +901,18 @@
   shutdown_internal(server, 1, tag);
 }
 
+void grpc_server_listener_destroy_done(void *s) {
+  grpc_server *server = s;
+  gpr_mu_lock(&server->mu);
+  server->listeners_destroyed++;
+  gpr_cv_signal(&server->cv);
+  gpr_mu_unlock(&server->mu);
+}
+
 void grpc_server_destroy(grpc_server *server) {
   channel_data *c;
+  listener *l;
+  size_t i;
   gpr_mu_lock(&server->mu);
   if (!server->shutdown) {
     gpr_mu_unlock(&server->mu);
@@ -902,6 +920,23 @@
     gpr_mu_lock(&server->mu);
   }
 
+  while (server->listeners_destroyed != num_listeners(server)) {
+    for (i = 0; i < server->cq_count; i++) {
+      gpr_mu_unlock(&server->mu);
+      grpc_cq_hack_spin_pollset(server->cqs[i]);
+      gpr_mu_lock(&server->mu);
+    }
+
+    gpr_cv_wait(&server->cv, &server->mu,
+                gpr_time_add(gpr_now(), gpr_time_from_millis(100)));
+  }
+
+  while (server->listeners) {
+    l = server->listeners;
+    server->listeners = l->next;
+    gpr_free(l);
+  }
+
   for (c = server->root_channel_data.next; c != &server->root_channel_data;
        c = c->next) {
     shutdown_channel(c);
diff --git a/src/core/surface/server.h b/src/core/surface/server.h
index e33f69b..2cfa38f 100644
--- a/src/core/surface/server.h
+++ b/src/core/surface/server.h
@@ -48,9 +48,12 @@
    and when it shuts down, it will call destroy */
 void grpc_server_add_listener(grpc_server *server, void *listener,
                               void (*start)(grpc_server *server, void *arg,
-                                            grpc_pollset **pollsets, size_t npollsets),
+                                            grpc_pollset **pollsets,
+                                            size_t npollsets),
                               void (*destroy)(grpc_server *server, void *arg));
 
+void grpc_server_listener_destroy_done(void *server);
+
 /* Setup a transport - creates a channel stack, binds the transport to the
    server */
 grpc_transport_setup_result grpc_server_setup_transport(
@@ -60,4 +63,4 @@
 
 const grpc_channel_args *grpc_server_get_channel_args(grpc_server *server);
 
-#endif  /* GRPC_INTERNAL_CORE_SURFACE_SERVER_H */
+#endif /* GRPC_INTERNAL_CORE_SURFACE_SERVER_H */
diff --git a/src/core/surface/server_chttp2.c b/src/core/surface/server_chttp2.c
index 27434b3..f3b9219 100644
--- a/src/core/surface/server_chttp2.c
+++ b/src/core/surface/server_chttp2.c
@@ -66,7 +66,8 @@
 }
 
 /* Server callback: start listening on our ports */
-static void start(grpc_server *server, void *tcpp, grpc_pollset **pollsets, size_t pollset_count) {
+static void start(grpc_server *server, void *tcpp, grpc_pollset **pollsets,
+                  size_t pollset_count) {
   grpc_tcp_server *tcp = tcpp;
   grpc_tcp_server_start(tcp, pollsets, pollset_count, new_transport, server);
 }
@@ -75,7 +76,7 @@
    callbacks) */
 static void destroy(grpc_server *server, void *tcpp) {
   grpc_tcp_server *tcp = tcpp;
-  grpc_tcp_server_destroy(tcp);
+  grpc_tcp_server_destroy(tcp, grpc_server_listener_destroy_done, server);
 }
 
 int grpc_server_add_http2_port(grpc_server *server, const char *addr) {
@@ -131,7 +132,7 @@
     grpc_resolved_addresses_destroy(resolved);
   }
   if (tcp) {
-    grpc_tcp_server_destroy(tcp);
+    grpc_tcp_server_destroy(tcp, NULL, NULL);
   }
   return 0;
 }
diff --git a/src/cpp/client/secure_credentials.cc b/src/cpp/client/secure_credentials.cc
index d6f9acc..0a73b2c 100644
--- a/src/cpp/client/secure_credentials.cc
+++ b/src/cpp/client/secure_credentials.cc
@@ -31,38 +31,23 @@
  *
  */
 
-#include <grpc/grpc_security.h>
 #include <grpc/support/log.h>
 
 #include <grpc++/channel_arguments.h>
-#include <grpc++/config.h>
-#include <grpc++/credentials.h>
 #include "src/cpp/client/channel.h"
+#include "src/cpp/client/secure_credentials.h"
 
 namespace grpc {
 
-class SecureCredentials GRPC_FINAL : public Credentials {
- public:
-  explicit SecureCredentials(grpc_credentials* c_creds) : c_creds_(c_creds) {}
-  ~SecureCredentials() GRPC_OVERRIDE { grpc_credentials_release(c_creds_); }
-  grpc_credentials* GetRawCreds() { return c_creds_; }
-
-  std::shared_ptr<grpc::ChannelInterface> CreateChannel(
-      const string& target, const grpc::ChannelArguments& args) GRPC_OVERRIDE {
-    grpc_channel_args channel_args;
-    args.SetChannelArgs(&channel_args);
-    return std::shared_ptr<ChannelInterface>(new Channel(
-        args.GetSslTargetNameOverride().empty()
-            ? target
-            : args.GetSslTargetNameOverride(),
-        grpc_secure_channel_create(c_creds_, target.c_str(), &channel_args)));
-  }
-
-  SecureCredentials* AsSecureCredentials() GRPC_OVERRIDE { return this; }
-
- private:
-  grpc_credentials* const c_creds_;
-};
+std::shared_ptr<grpc::ChannelInterface> SecureCredentials::CreateChannel(
+    const string& target, const grpc::ChannelArguments& args) {
+  grpc_channel_args channel_args;
+  args.SetChannelArgs(&channel_args);
+  return std::shared_ptr<ChannelInterface>(new Channel(
+      args.GetSslTargetNameOverride().empty() ? target
+                                              : args.GetSslTargetNameOverride(),
+      grpc_secure_channel_create(c_creds_, target.c_str(), &channel_args)));
+}
 
 namespace {
 std::unique_ptr<Credentials> WrapCredentials(grpc_credentials* creds) {
diff --git a/src/cpp/client/secure_credentials.h b/src/cpp/client/secure_credentials.h
new file mode 100644
index 0000000..77d5758
--- /dev/null
+++ b/src/cpp/client/secure_credentials.h
@@ -0,0 +1,61 @@
+/*
+ *
+ * Copyright 2015, 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_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H
+#define GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H
+
+#include <grpc/grpc_security.h>
+
+#include <grpc++/config.h>
+#include <grpc++/credentials.h>
+
+namespace grpc {
+
+class SecureCredentials GRPC_FINAL : public Credentials {
+ public:
+  explicit SecureCredentials(grpc_credentials* c_creds) : c_creds_(c_creds) {}
+  ~SecureCredentials() GRPC_OVERRIDE { grpc_credentials_release(c_creds_); }
+  grpc_credentials* GetRawCreds() { return c_creds_; }
+
+  std::shared_ptr<grpc::ChannelInterface> CreateChannel(
+      const string& target, const grpc::ChannelArguments& args) GRPC_OVERRIDE;
+  SecureCredentials* AsSecureCredentials() GRPC_OVERRIDE { return this; }
+
+ private:
+  grpc_credentials* const c_creds_;
+};
+
+}  // namespace grpc
+
+#endif  // GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H
+
diff --git a/src/cpp/server/secure_server_credentials.cc b/src/cpp/server/secure_server_credentials.cc
index 49d69a3..3e262dd 100644
--- a/src/cpp/server/secure_server_credentials.cc
+++ b/src/cpp/server/secure_server_credentials.cc
@@ -31,39 +31,22 @@
  *
  */
 
-#include <grpc/grpc_security.h>
-
-#include <grpc++/server_credentials.h>
+#include "src/cpp/server/secure_server_credentials.h"
 
 namespace grpc {
 
-namespace {
-class SecureServerCredentials GRPC_FINAL : public ServerCredentials {
- public:
-  explicit SecureServerCredentials(grpc_server_credentials* creds)
-      : creds_(creds) {}
-  ~SecureServerCredentials() GRPC_OVERRIDE {
-    grpc_server_credentials_release(creds_);
-  }
-
-  int AddPortToServer(const grpc::string& addr,
-                      grpc_server* server) GRPC_OVERRIDE {
-    return grpc_server_add_secure_http2_port(server, addr.c_str(), creds_);
-  }
-
- private:
-  grpc_server_credentials* const creds_;
-};
-}  // namespace
+int SecureServerCredentials::AddPortToServer(
+    const grpc::string& addr, grpc_server* server) {
+  return grpc_server_add_secure_http2_port(server, addr.c_str(), creds_);
+}
 
 std::shared_ptr<ServerCredentials> SslServerCredentials(
     const SslServerCredentialsOptions& options) {
   std::vector<grpc_ssl_pem_key_cert_pair> pem_key_cert_pairs;
   for (auto key_cert_pair = options.pem_key_cert_pairs.begin();
-       key_cert_pair != options.pem_key_cert_pairs.end();
-       key_cert_pair++) {
+       key_cert_pair != options.pem_key_cert_pairs.end(); key_cert_pair++) {
     grpc_ssl_pem_key_cert_pair p = {key_cert_pair->private_key.c_str(),
-				    key_cert_pair->cert_chain.c_str()};
+                                    key_cert_pair->cert_chain.c_str()};
     pem_key_cert_pairs.push_back(p);
   }
   grpc_server_credentials* c_creds = grpc_ssl_server_credentials_create(
diff --git a/src/cpp/server/secure_server_credentials.h b/src/cpp/server/secure_server_credentials.h
new file mode 100644
index 0000000..b9803f1
--- /dev/null
+++ b/src/cpp/server/secure_server_credentials.h
@@ -0,0 +1,60 @@
+/*
+ *
+ * Copyright 2015, 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_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H
+#define GRPC_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H
+
+#include <grpc/grpc_security.h>
+
+#include <grpc++/server_credentials.h>
+
+namespace grpc {
+
+class SecureServerCredentials GRPC_FINAL : public ServerCredentials {
+ public:
+  explicit SecureServerCredentials(grpc_server_credentials* creds)
+      : creds_(creds) {}
+  ~SecureServerCredentials() GRPC_OVERRIDE {
+    grpc_server_credentials_release(creds_);
+  }
+
+  int AddPortToServer(const grpc::string& addr,
+                      grpc_server* server) GRPC_OVERRIDE;
+
+ private:
+  grpc_server_credentials* const creds_;
+};
+
+}  // namespace grpc
+
+#endif  // GRPC_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H
diff --git a/src/php/bin/generate_proto_php.sh b/src/php/bin/generate_proto_php.sh
new file mode 100755
index 0000000..16f9374
--- /dev/null
+++ b/src/php/bin/generate_proto_php.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+# Copyright 2015, 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.
+
+
+set +e
+cd $(dirname $0)
+
+gen_code='../tests/generated_code'
+interop='../tests/interop'
+
+protoc-gen-php -i $gen_code -o $gen_code $gen_code/math.proto
+
+protoc-gen-php -i $interop -o $interop $interop/test.proto
diff --git a/src/php/ext/grpc/call.c b/src/php/ext/grpc/call.c
index 6bc65b5..b1525e9 100644
--- a/src/php/ext/grpc/call.c
+++ b/src/php/ext/grpc/call.c
@@ -443,8 +443,9 @@
         add_property_bool(result, "send_status", true);
         break;
       case GRPC_OP_RECV_INITIAL_METADATA:
-        add_property_zval(result, "metadata",
-                          grpc_parse_metadata_array(&recv_metadata));
+        array = grpc_parse_metadata_array(&recv_metadata);
+        add_property_zval(result, "metadata", array);
+        Z_DELREF_P(array);
         break;
       case GRPC_OP_RECV_MESSAGE:
         byte_buffer_to_string(message, &message_str, &message_len);
@@ -458,11 +459,13 @@
       case GRPC_OP_RECV_STATUS_ON_CLIENT:
         MAKE_STD_ZVAL(recv_status);
         object_init(recv_status);
-        add_property_zval(recv_status, "metadata",
-                          grpc_parse_metadata_array(&recv_trailing_metadata));
+        array = grpc_parse_metadata_array(&recv_trailing_metadata);
+        add_property_zval(recv_status, "metadata", array);
+        Z_DELREF_P(array);
         add_property_long(recv_status, "code", status);
         add_property_string(recv_status, "details", status_details, true);
         add_property_zval(result, "status", recv_status);
+        Z_DELREF_P(recv_status);
         break;
       case GRPC_OP_RECV_CLOSE_ON_SERVER:
         add_property_bool(result, "cancelled", cancelled);
diff --git a/src/php/ext/grpc/channel.c b/src/php/ext/grpc/channel.c
index 51a3eae..b8262db 100644
--- a/src/php/ext/grpc/channel.c
+++ b/src/php/ext/grpc/channel.c
@@ -62,6 +62,7 @@
   if (channel->wrapped != NULL) {
     grpc_channel_destroy(channel->wrapped);
   }
+  efree(channel->target);
   efree(channel);
 }
 
diff --git a/src/python/interop/interop/_interop_test_case.py b/src/python/interop/interop/_interop_test_case.py
index fec8f19..cd6a574 100644
--- a/src/python/interop/interop/_interop_test_case.py
+++ b/src/python/interop/interop/_interop_test_case.py
@@ -40,16 +40,16 @@
   """
 
   def testEmptyUnary(self):
-    methods.TestCase.EMPTY_UNARY.test_interoperability(self.stub)
+    methods.TestCase.EMPTY_UNARY.test_interoperability(self.stub, None)
 
   def testLargeUnary(self):
-    methods.TestCase.LARGE_UNARY.test_interoperability(self.stub)
+    methods.TestCase.LARGE_UNARY.test_interoperability(self.stub, None)
 
   def testServerStreaming(self):
-    methods.TestCase.SERVER_STREAMING.test_interoperability(self.stub)
+    methods.TestCase.SERVER_STREAMING.test_interoperability(self.stub, None)
 
   def testClientStreaming(self):
-    methods.TestCase.CLIENT_STREAMING.test_interoperability(self.stub)
+    methods.TestCase.CLIENT_STREAMING.test_interoperability(self.stub, None)
 
   def testPingPong(self):
-    methods.TestCase.PING_PONG.test_interoperability(self.stub)
+    methods.TestCase.PING_PONG.test_interoperability(self.stub, None)
diff --git a/src/python/interop/interop/client.py b/src/python/interop/interop/client.py
index 85a0dcd..bae5e17 100644
--- a/src/python/interop/interop/client.py
+++ b/src/python/interop/interop/client.py
@@ -30,6 +30,7 @@
 """The Python implementation of the GRPC interoperability test client."""
 
 import argparse
+from oauth2client import client as oauth2client_client
 
 from grpc.early_adopter import implementations
 
@@ -44,9 +45,6 @@
   parser.add_argument(
       '--server_host', help='the host to which to connect', type=str)
   parser.add_argument(
-      '--server_host_override',
-      help='the server host to which to claim to connect', type=str)
-  parser.add_argument(
       '--server_port', help='the port to which to connect', type=int)
   parser.add_argument(
       '--test_case', help='the test case to execute', type=str)
@@ -56,10 +54,25 @@
   parser.add_argument(
       '--use_test_ca', help='replace platform root CAs with ca.pem',
       action='store_true')
+  parser.add_argument(
+      '--server_host_override',
+      help='the server host to which to claim to connect', type=str)
+  parser.add_argument('--oauth_scope', help='scope for OAuth tokens', type=str)
+  parser.add_argument(
+      '--default_service_account',
+      help='email address of the default service account', type=str)
   return parser.parse_args()
 
+def _oauth_access_token(args):
+  credentials = client.GoogleCredentials.get_application_default()
+  scoped_credentials = credentials.create_scoped([args.oauth_scope])
+  return scoped_credentials.get_access_token().access_token
 
 def _stub(args):
+  if args.oauth_scope:
+    metadata_transformer = lambda x: [('Authorization', 'Bearer %s' % _oauth_access_token(args))]
+  else:
+    metadata_transformer = lambda x: []
   if args.use_tls:
     if args.use_test_ca:
       root_certificates = resources.test_root_certificates()
@@ -68,7 +81,8 @@
 
     stub = implementations.stub(
         methods.SERVICE_NAME, methods.CLIENT_METHODS, args.server_host,
-        args.server_port, secure=True, root_certificates=root_certificates,
+        args.server_port, metadata_transformer=metadata_transformer,
+        secure=True, root_certificates=root_certificates,
         server_host_override=args.server_host_override)
   else:
     stub = implementations.stub(
@@ -89,7 +103,7 @@
   args = _args()
   stub = _stub(args)
   test_case = _test_case_from_arg(args.test_case)
-  test_case.test_interoperability(stub)
+  test_case.test_interoperability(stub, args)
 
 
 if __name__ == '__main__':
diff --git a/src/python/interop/interop/methods.py b/src/python/interop/interop/methods.py
index 79550a3..c69771d 100644
--- a/src/python/interop/interop/methods.py
+++ b/src/python/interop/interop/methods.py
@@ -30,8 +30,12 @@
 """Implementations of interoperability test methods."""
 
 import enum
+import json
+import os
 import threading
 
+from oauth2client import client as oauth2client_client
+
 from grpc.framework.alpha import utilities
 
 from interop import empty_pb2
@@ -150,6 +154,23 @@
 }
 
 
+def _large_unary_common_behavior(stub, fill_username, fill_oauth_scope):
+  with stub:
+    request = messages_pb2.SimpleRequest(
+        response_type=messages_pb2.COMPRESSABLE, response_size=314159,
+        payload=messages_pb2.Payload(body=b'\x00' * 271828),
+        fill_username=fill_username, fill_oauth_scope=fill_oauth_scope)
+    response_future = stub.UnaryCall.async(request, _TIMEOUT)
+    response = response_future.result()
+    if response.payload.type is not messages_pb2.COMPRESSABLE:
+      raise ValueError(
+          'response payload type is "%s"!' % type(response.payload.type))
+    if len(response.payload.body) != 314159:
+      raise ValueError(
+          'response body of incorrect size %d!' % len(response.payload.body))
+    return response
+
+
 def _empty_unary(stub):
   with stub:
     response = stub.EmptyCall(empty_pb2.Empty(), _TIMEOUT)
@@ -159,18 +180,7 @@
 
 
 def _large_unary(stub):
-  with stub:
-    request = messages_pb2.SimpleRequest(
-        response_type=messages_pb2.COMPRESSABLE, response_size=314159,
-        payload=messages_pb2.Payload(body=b'\x00' * 271828))
-    response_future = stub.UnaryCall.async(request, _TIMEOUT)
-    response = response_future.result()
-    if response.payload.type is not messages_pb2.COMPRESSABLE:
-      raise ValueError(
-          'response payload type is "%s"!' % type(response.payload.type))
-    if len(response.payload.body) != 314159:
-      raise ValueError(
-          'response body of incorrect size %d!' % len(response.payload.body))
+  _large_unary_common_behavior(stub, False, False)
 
 
 def _client_streaming(stub):
@@ -266,6 +276,28 @@
     pipe.close()
 
 
+def _compute_engine_creds(stub, args):
+  response = _large_unary_common_behavior(stub, True, True)
+  if args.default_service_account != response.username:
+    raise ValueError(
+        'expected username %s, got %s' % (args.default_service_account,
+                                          response.username))
+
+
+def _service_account_creds(stub, args):
+  json_key_filename = os.environ[
+      oauth2client_client.GOOGLE_APPLICATION_CREDENTIALS]
+  wanted_email = json.load(open(json_key_filename, 'rb'))['client_email']
+  response = _large_unary_common_behavior(stub, True, True)
+  if wanted_email != response.username:
+    raise ValueError(
+        'expected username %s, got %s' % (wanted_email, response.username))
+  if response.oauth_scope in args.oauth_scope:
+    raise ValueError(
+        'expected to find oauth scope "%s" in received "%s"' %
+            (response.oauth_scope, args.oauth_scope))
+
+
 @enum.unique
 class TestCase(enum.Enum):
   EMPTY_UNARY = 'empty_unary'
@@ -273,8 +305,10 @@
   SERVER_STREAMING = 'server_streaming'
   CLIENT_STREAMING = 'client_streaming'
   PING_PONG = 'ping_pong'
+  COMPUTE_ENGINE_CREDS = 'compute_engine_creds'
+  SERVICE_ACCOUNT_CREDS = 'service_account_creds'
 
-  def test_interoperability(self, stub):
+  def test_interoperability(self, stub, args):
     if self is TestCase.EMPTY_UNARY:
       _empty_unary(stub)
     elif self is TestCase.LARGE_UNARY:
@@ -285,5 +319,9 @@
       _client_streaming(stub)
     elif self is TestCase.PING_PONG:
       _ping_pong(stub)
+    elif self is TestCase.COMPUTE_ENGINE_CREDS:
+      _compute_engine_creds(stub, args)
+    elif self is TestCase.SERVICE_ACCOUNT_CREDS:
+      _service_account_creds(stub, args)
     else:
       raise NotImplementedError('Test case "%s" not implemented!' % self.name)
diff --git a/src/python/interop/setup.py b/src/python/interop/setup.py
index 7a32992..502fcbe 100644
--- a/src/python/interop/setup.py
+++ b/src/python/interop/setup.py
@@ -45,7 +45,7 @@
         'credentials/server1.pem',]
 }
 
-_INSTALL_REQUIRES = ['grpcio>=0.4.0a4']
+_INSTALL_REQUIRES = ['oauth2client>=1.4.7', 'grpcio>=0.4.0a4']
 
 setuptools.setup(
     name='interop',
diff --git a/templates/BUILD.template b/templates/BUILD.template
index 997c55b..8303b9f 100644
--- a/templates/BUILD.template
+++ b/templates/BUILD.template
@@ -32,38 +32,79 @@
 
 licenses(["notice"])  # 3-clause BSD
 
+package(default_visibility = ["//visibility:public"])
+
+<%!
+def get_deps(target_dict):
+  deps = []
+  if target_dict.get('secure', 'no') == 'yes':
+    deps = [
+      "//external:libssl",
+    ]
+  if target_dict.get('build', None) == 'protoc':
+    deps.append("//external:protobuf_compiler")
+  if target_dict['name'] == 'grpc++_unsecure' or target_dict['name'] == 'grpc++':
+    deps.append("//external:protobuf_clib")
+  for d in target_dict.get('deps', []):
+    if d.find('//') == 0 or d[0] == ':':
+      deps.append(d)
+    else:
+      deps.append(':%s' % (d))
+  return deps
+%>
+
 % for lib in libs:
-% if lib.build == "all" and lib.language == 'c':
-${makelib(lib)}
+% if lib.build != "private":
+${cc_library(lib)}
 % endif
 % endfor
 
-<%def name="makelib(lib)">
+% for tgt in targets:
+% if tgt.build == 'protoc':
+${cc_binary(tgt)}
+% endif
+% endfor
 
+<%def name="cc_library(lib)">
 cc_library(
-    name = "${lib.name}",
-    srcs = [
+  name = "${lib.name}",
+  srcs = [
 % for hdr in lib.get("headers", []):
-        "${hdr}",
+    "${hdr}",
 % endfor
 % for src in lib.src:
-        "${src}",
+    "${src}",
 % endfor
-    ],
-    hdrs = [
+  ],
+  hdrs = [
 % for hdr in lib.get("public_headers", []):
-        "${hdr}",
+    "${hdr}",
 % endfor
-    ],
-    includes = [
-        "include",
-        ".",
-    ],
-    deps = [
-% for dep in lib.get("deps", []):
-        ":${dep}",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+% for dep in get_deps(lib):
+    "${dep}",
 % endfor
-    ],
+  ],
 )
+</%def>
 
+<%def name="cc_binary(tgt)">
+cc_binary(
+  name = "${tgt.name}",
+  srcs = [
+% for src in tgt.src:
+    "${src}",
+% endfor
+  ],
+  deps = [
+% for dep in get_deps(tgt):
+    "${dep}",
+% endfor
+  ],
+)
 </%def>
diff --git a/templates/Makefile.template b/templates/Makefile.template
index 848ee87..2cfbfa3 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -35,17 +35,11 @@
 
   proto_re = re.compile('(.*)\\.proto')
 
-  def excluded(filename, exclude_res):
-    for r in exclude_res:
-      if r.match(filename):
-        return True
-    return False
-
   def proto_to_cc(filename):
     m = proto_re.match(filename)
     if not m:
       return filename
-    return '$(GENDIR)/' + m.group(1) + '.pb.cc'
+    return '$(GENDIR)/' + m.group(1) + '.pb.cc $(GENDIR)/' + m.group(1) + '.grpc.pb.cc'
 %>
 
 
@@ -840,11 +834,17 @@
 % for p in protos:
 ifeq ($(NO_PROTOC),true)
 $(GENDIR)/${p}.pb.cc: protoc_dep_error
+$(GENDIR)/${p}.grpc.pb.cc: protoc_dep_error
 else
 $(GENDIR)/${p}.pb.cc: ${p}.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
 	$(E) "[PROTOC]  Generating protobuf CC file from $<"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(PROTOC) --cpp_out=$(GENDIR) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
+	$(Q) $(PROTOC) --cpp_out=$(GENDIR) $<
+
+$(GENDIR)/${p}.grpc.pb.cc: ${p}.proto $(PROTOBUF_DEP) $(PROTOC_PLUGINS)
+	$(E) "[GRPC]    Generating gRPC's protobuf service CC file from $<"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(PROTOC) --grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(BINDIR)/$(CONFIG)/grpc_cpp_plugin $<
 endif
 
 % endfor
@@ -930,6 +930,7 @@
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/lib${lib.name}.$(SHARED_EXT) $(prefix)/lib/lib${lib.name}.$(SHARED_EXT)
 ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf lib${lib.name}.$(SHARED_EXT) $(prefix)/lib/lib${lib.name}.so.${settings.version.major}
 	$(Q) ln -sf lib${lib.name}.$(SHARED_EXT) $(prefix)/lib/lib${lib.name}.so
 endif
 endif
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index e15fa7f..592dfd4 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -51,10 +51,11 @@
 
 static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
                                             const char *test_name,
+                                            cancellation_mode mode,
                                             grpc_channel_args *client_args,
                                             grpc_channel_args *server_args) {
   grpc_end2end_test_fixture f;
-  gpr_log(GPR_INFO, "%s/%s", test_name, config.name);
+  gpr_log(GPR_INFO, "%s/%s/%s", test_name, config.name, mode.name);
   f = config.create_fixture(client_args, server_args);
   config.init_client(&f, client_args);
   config.init_server(&f, server_args);
@@ -109,7 +110,8 @@
   grpc_op ops[6];
   grpc_op *op;
   grpc_call *c;
-  grpc_end2end_test_fixture f = begin_test(config, __FUNCTION__, NULL, NULL);
+  grpc_end2end_test_fixture f =
+      begin_test(config, __FUNCTION__, mode, NULL, NULL);
   gpr_timespec deadline = five_seconds_time();
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   grpc_metadata_array initial_metadata_recv;
diff --git a/test/core/end2end/tests/cancel_test_helpers.h b/test/core/end2end/tests/cancel_test_helpers.h
index f2581dc..0d680fc 100644
--- a/test/core/end2end/tests/cancel_test_helpers.h
+++ b/test/core/end2end/tests/cancel_test_helpers.h
@@ -35,6 +35,7 @@
 #define GRPC_TEST_CORE_END2END_TESTS_CANCEL_TEST_HELPERS_H
 
 typedef struct {
+  const char *name;
   grpc_call_error (*initiate_cancel)(grpc_call *call);
   grpc_status_code expect_status;
   const char *expect_details;
@@ -45,7 +46,9 @@
 }
 
 static const cancellation_mode cancellation_modes[] = {
-    {grpc_call_cancel, GRPC_STATUS_CANCELLED, ""},
-    {wait_for_deadline, GRPC_STATUS_DEADLINE_EXCEEDED, "Deadline Exceeded"}, };
+    {"cancel", grpc_call_cancel, GRPC_STATUS_CANCELLED, ""},
+    {"deadline", wait_for_deadline, GRPC_STATUS_DEADLINE_EXCEEDED,
+     "Deadline Exceeded"},
+};
 
-#endif  /* GRPC_TEST_CORE_END2END_TESTS_CANCEL_TEST_HELPERS_H */
+#endif /* GRPC_TEST_CORE_END2END_TESTS_CANCEL_TEST_HELPERS_H */
diff --git a/test/core/iomgr/tcp_server_posix_test.c b/test/core/iomgr/tcp_server_posix_test.c
index 2689c3f..6b80ee1 100644
--- a/test/core/iomgr/tcp_server_posix_test.c
+++ b/test/core/iomgr/tcp_server_posix_test.c
@@ -60,14 +60,14 @@
 
 static void test_no_op(void) {
   grpc_tcp_server *s = grpc_tcp_server_create();
-  grpc_tcp_server_destroy(s);
+  grpc_tcp_server_destroy(s, NULL, NULL);
 }
 
 static void test_no_op_with_start(void) {
   grpc_tcp_server *s = grpc_tcp_server_create();
   LOG_TEST();
   grpc_tcp_server_start(s, NULL, 0, on_connect, NULL);
-  grpc_tcp_server_destroy(s);
+  grpc_tcp_server_destroy(s, NULL, NULL);
 }
 
 static void test_no_op_with_port(void) {
@@ -80,7 +80,7 @@
   GPR_ASSERT(
       grpc_tcp_server_add_port(s, (struct sockaddr *)&addr, sizeof(addr)));
 
-  grpc_tcp_server_destroy(s);
+  grpc_tcp_server_destroy(s, NULL, NULL);
 }
 
 static void test_no_op_with_port_and_start(void) {
@@ -95,7 +95,7 @@
 
   grpc_tcp_server_start(s, NULL, 0, on_connect, NULL);
 
-  grpc_tcp_server_destroy(s);
+  grpc_tcp_server_destroy(s, NULL, NULL);
 }
 
 static void test_connect(int n) {
@@ -144,7 +144,7 @@
 
   gpr_mu_unlock(&mu);
 
-  grpc_tcp_server_destroy(s);
+  grpc_tcp_server_destroy(s, NULL, NULL);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/cpp/end2end/async_end2end_test.cc b/test/cpp/end2end/async_end2end_test.cc
index 9938fcf..dd294d9 100644
--- a/test/cpp/end2end/async_end2end_test.cc
+++ b/test/cpp/end2end/async_end2end_test.cc
@@ -35,8 +35,8 @@
 #include <memory>
 
 #include "test/core/util/test_config.h"
-#include "test/cpp/util/echo_duplicate.pb.h"
-#include "test/cpp/util/echo.pb.h"
+#include "test/cpp/util/echo_duplicate.grpc.pb.h"
+#include "test/cpp/util/echo.grpc.pb.h"
 #include "src/cpp/util/time.h"
 #include <grpc++/async_unary_call.h>
 #include <grpc++/channel_arguments.h>
diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index 0d5db04..f96051c 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -35,8 +35,8 @@
 #include <thread>
 
 #include "test/core/util/test_config.h"
-#include "test/cpp/util/echo_duplicate.pb.h"
-#include "test/cpp/util/echo.pb.h"
+#include "test/cpp/util/echo_duplicate.grpc.pb.h"
+#include "test/cpp/util/echo.grpc.pb.h"
 #include "src/cpp/util/time.h"
 #include "src/cpp/server/thread_pool.h"
 #include <grpc++/channel_arguments.h>
diff --git a/test/cpp/end2end/generic_end2end_test.cc b/test/cpp/end2end/generic_end2end_test.cc
index 9cdd8c9..eb6f536 100644
--- a/test/cpp/end2end/generic_end2end_test.cc
+++ b/test/cpp/end2end/generic_end2end_test.cc
@@ -38,7 +38,7 @@
 #include "src/cpp/util/time.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-#include "test/cpp/util/echo.pb.h"
+#include "test/cpp/util/echo.grpc.pb.h"
 #include <grpc++/async_generic_service.h>
 #include <grpc++/async_unary_call.h>
 #include <grpc++/byte_buffer.h>
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index de6c6b7..189cdeb 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -31,29 +31,19 @@
  *
  */
 
-#include <chrono>
-#include <fstream>
 #include <memory>
-#include <sstream>
-#include <string>
-#include <thread>
 
 #include <unistd.h>
 
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include <gflags/gflags.h>
-#include <grpc++/channel_arguments.h>
 #include <grpc++/channel_interface.h>
 #include <grpc++/client_context.h>
-#include <grpc++/create_channel.h>
-#include <grpc++/credentials.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
-#include "test/cpp/util/create_test_channel.h"
-#include "test/cpp/interop/test.pb.h"
-#include "test/cpp/interop/empty.pb.h"
-#include "test/cpp/interop/messages.pb.h"
+#include "test/cpp/interop/client_helper.h"
+#include "test/cpp/interop/interop_client.h"
 
 DEFINE_bool(enable_ssl, false, "Whether to use ssl/tls.");
 DEFINE_bool(use_prod_roots, false, "True to use SSL roots for google");
@@ -81,21 +71,8 @@
               "Path to service account json key file.");
 DEFINE_string(oauth_scope, "", "Scope for OAuth tokens.");
 
-using grpc::ChannelInterface;
-using grpc::ClientContext;
-using grpc::ComputeEngineCredentials;
-using grpc::CreateTestChannel;
-using grpc::Credentials;
-using grpc::JWTCredentials;
-using grpc::ServiceAccountCredentials;
-using grpc::testing::ResponseParameters;
-using grpc::testing::SimpleRequest;
-using grpc::testing::SimpleResponse;
-using grpc::testing::StreamingInputCallRequest;
-using grpc::testing::StreamingInputCallResponse;
-using grpc::testing::StreamingOutputCallRequest;
-using grpc::testing::StreamingOutputCallResponse;
-using grpc::testing::TestService;
+using grpc::testing::CreateChannelForTestCase;
+using grpc::testing::GetServiceAccountJsonKey;
 
 // In some distros, gflags is in the namespace google, and in some others,
 // in gflags. This hack is enabling us to find both.
@@ -104,362 +81,48 @@
 using namespace google;
 using namespace gflags;
 
-namespace {
-// The same value is defined by the Java client.
-const std::vector<int> request_stream_sizes = {27182, 8, 1828, 45904};
-const std::vector<int> response_stream_sizes = {31415, 9, 2653, 58979};
-const int kNumResponseMessages = 2000;
-const int kResponseMessageSize = 1030;
-const int kReceiveDelayMilliSeconds = 20;
-const int kLargeRequestSize = 314159;
-const int kLargeResponseSize = 271812;
-}  // namespace
-
-grpc::string GetServiceAccountJsonKey() {
-  static grpc::string json_key;
-  if (json_key.empty()) {
-    std::ifstream json_key_file(FLAGS_service_account_key_file);
-    std::stringstream key_stream;
-    key_stream << json_key_file.rdbuf();
-    json_key = key_stream.str();
-  }
-  return json_key;
-}
-
-std::shared_ptr<ChannelInterface> CreateChannelForTestCase(
-    const grpc::string& test_case) {
-  GPR_ASSERT(FLAGS_server_port);
-  const int host_port_buf_size = 1024;
-  char host_port[host_port_buf_size];
-  snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
-           FLAGS_server_port);
-
-  if (test_case == "service_account_creds") {
-    std::unique_ptr<Credentials> creds;
-    GPR_ASSERT(FLAGS_enable_ssl);
-    grpc::string json_key = GetServiceAccountJsonKey();
-    creds = ServiceAccountCredentials(json_key, FLAGS_oauth_scope,
-                                      std::chrono::hours(1));
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
-  } else if (test_case == "compute_engine_creds") {
-    std::unique_ptr<Credentials> creds;
-    GPR_ASSERT(FLAGS_enable_ssl);
-    creds = ComputeEngineCredentials();
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
-  } else if (test_case == "jwt_token_creds") {
-    std::unique_ptr<Credentials> creds;
-    GPR_ASSERT(FLAGS_enable_ssl);
-    grpc::string json_key = GetServiceAccountJsonKey();
-    creds = JWTCredentials(json_key, std::chrono::hours(1));
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
-  } else {
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_enable_ssl, FLAGS_use_prod_roots);
-  }
-}
-
-void AssertOkOrPrintErrorStatus(const grpc::Status& s) {
-  if (s.IsOk()) {
-    return;
-  }
-  gpr_log(GPR_INFO, "Error status code: %d, message: %s", s.code(),
-          s.details().c_str());
-  GPR_ASSERT(0);
-}
-
-void DoEmpty() {
-  gpr_log(GPR_INFO, "Sending an empty rpc...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("empty_unary");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::testing::Empty request = grpc::testing::Empty::default_instance();
-  grpc::testing::Empty response = grpc::testing::Empty::default_instance();
-  ClientContext context;
-
-  grpc::Status s = stub->EmptyCall(&context, request, &response);
-  AssertOkOrPrintErrorStatus(s);
-
-  gpr_log(GPR_INFO, "Empty rpc done.");
-}
-
-// Shared code to set large payload, make rpc and check response payload.
-void PerformLargeUnary(std::shared_ptr<ChannelInterface> channel,
-                       SimpleRequest* request, SimpleResponse* response) {
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  ClientContext context;
-  request->set_response_type(grpc::testing::PayloadType::COMPRESSABLE);
-  request->set_response_size(kLargeResponseSize);
-  grpc::string payload(kLargeRequestSize, '\0');
-  request->mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
-
-  grpc::Status s = stub->UnaryCall(&context, *request, response);
-
-  AssertOkOrPrintErrorStatus(s);
-  GPR_ASSERT(response->payload().type() ==
-             grpc::testing::PayloadType::COMPRESSABLE);
-  GPR_ASSERT(response->payload().body() ==
-             grpc::string(kLargeResponseSize, '\0'));
-}
-
-void DoComputeEngineCreds() {
-  gpr_log(GPR_INFO,
-          "Sending a large unary rpc with compute engine credentials ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("compute_engine_creds");
-  SimpleRequest request;
-  SimpleResponse response;
-  request.set_fill_username(true);
-  request.set_fill_oauth_scope(true);
-  PerformLargeUnary(channel, &request, &response);
-  gpr_log(GPR_INFO, "Got username %s", response.username().c_str());
-  gpr_log(GPR_INFO, "Got oauth_scope %s", response.oauth_scope().c_str());
-  GPR_ASSERT(!response.username().empty());
-  GPR_ASSERT(response.username().c_str() == FLAGS_default_service_account);
-  GPR_ASSERT(!response.oauth_scope().empty());
-  const char* oauth_scope_str = response.oauth_scope().c_str();
-  GPR_ASSERT(FLAGS_oauth_scope.find(oauth_scope_str) != grpc::string::npos);
-  gpr_log(GPR_INFO, "Large unary with compute engine creds done.");
-}
-
-void DoServiceAccountCreds() {
-  gpr_log(GPR_INFO,
-          "Sending a large unary rpc with service account credentials ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("service_account_creds");
-  SimpleRequest request;
-  SimpleResponse response;
-  request.set_fill_username(true);
-  request.set_fill_oauth_scope(true);
-  PerformLargeUnary(channel, &request, &response);
-  GPR_ASSERT(!response.username().empty());
-  GPR_ASSERT(!response.oauth_scope().empty());
-  grpc::string json_key = GetServiceAccountJsonKey();
-  GPR_ASSERT(json_key.find(response.username()) != grpc::string::npos);
-  const char* oauth_scope_str = response.oauth_scope().c_str();
-  GPR_ASSERT(FLAGS_oauth_scope.find(oauth_scope_str) != grpc::string::npos);
-  gpr_log(GPR_INFO, "Large unary with service account creds done.");
-}
-
-void DoJwtTokenCreds() {
-  gpr_log(GPR_INFO, "Sending a large unary rpc with JWT token credentials ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("jwt_token_creds");
-  SimpleRequest request;
-  SimpleResponse response;
-  request.set_fill_username(true);
-  PerformLargeUnary(channel, &request, &response);
-  GPR_ASSERT(!response.username().empty());
-  grpc::string json_key = GetServiceAccountJsonKey();
-  GPR_ASSERT(json_key.find(response.username()) != grpc::string::npos);
-  gpr_log(GPR_INFO, "Large unary with JWT token creds done.");
-}
-
-void DoLargeUnary() {
-  gpr_log(GPR_INFO, "Sending a large unary rpc...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("large_unary");
-  SimpleRequest request;
-  SimpleResponse response;
-  PerformLargeUnary(channel, &request, &response);
-  gpr_log(GPR_INFO, "Large unary done.");
-}
-
-void DoRequestStreaming() {
-  gpr_log(GPR_INFO, "Sending request steaming rpc ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("client_streaming");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::ClientContext context;
-  StreamingInputCallRequest request;
-  StreamingInputCallResponse response;
-
-  std::unique_ptr<grpc::ClientWriter<StreamingInputCallRequest>> stream(
-      stub->StreamingInputCall(&context, &response));
-
-  int aggregated_payload_size = 0;
-  for (unsigned int i = 0; i < request_stream_sizes.size(); ++i) {
-    grpc::testing::Payload* payload = request.mutable_payload();
-    payload->set_body(grpc::string(request_stream_sizes[i], '\0'));
-    GPR_ASSERT(stream->Write(request));
-    aggregated_payload_size += request_stream_sizes[i];
-  }
-  stream->WritesDone();
-  grpc::Status s = stream->Finish();
-
-  GPR_ASSERT(response.aggregated_payload_size() == aggregated_payload_size);
-  AssertOkOrPrintErrorStatus(s);
-  gpr_log(GPR_INFO, "Request streaming done.");
-}
-
-void DoResponseStreaming() {
-  gpr_log(GPR_INFO, "Receiving response steaming rpc ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("server_streaming");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::ClientContext context;
-  StreamingOutputCallRequest request;
-  for (unsigned int i = 0; i < response_stream_sizes.size(); ++i) {
-    ResponseParameters* response_parameter = request.add_response_parameters();
-    response_parameter->set_size(response_stream_sizes[i]);
-  }
-  StreamingOutputCallResponse response;
-  std::unique_ptr<grpc::ClientReader<StreamingOutputCallResponse>> stream(
-      stub->StreamingOutputCall(&context, request));
-
-  unsigned int i = 0;
-  while (stream->Read(&response)) {
-    GPR_ASSERT(response.payload().body() ==
-               grpc::string(response_stream_sizes[i], '\0'));
-    ++i;
-  }
-  GPR_ASSERT(response_stream_sizes.size() == i);
-  grpc::Status s = stream->Finish();
-
-  AssertOkOrPrintErrorStatus(s);
-  gpr_log(GPR_INFO, "Response streaming done.");
-}
-
-void DoResponseStreamingWithSlowConsumer() {
-  gpr_log(GPR_INFO, "Receiving response steaming rpc with slow consumer ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("slow_consumer");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::ClientContext context;
-  StreamingOutputCallRequest request;
-
-  for (int i = 0; i < kNumResponseMessages; ++i) {
-    ResponseParameters* response_parameter = request.add_response_parameters();
-    response_parameter->set_size(kResponseMessageSize);
-  }
-  StreamingOutputCallResponse response;
-  std::unique_ptr<grpc::ClientReader<StreamingOutputCallResponse>> stream(
-      stub->StreamingOutputCall(&context, request));
-
-  int i = 0;
-  while (stream->Read(&response)) {
-    GPR_ASSERT(response.payload().body() ==
-               grpc::string(kResponseMessageSize, '\0'));
-    gpr_log(GPR_INFO, "received message %d", i);
-    usleep(kReceiveDelayMilliSeconds * 1000);
-    ++i;
-  }
-  GPR_ASSERT(kNumResponseMessages == i);
-  grpc::Status s = stream->Finish();
-
-  AssertOkOrPrintErrorStatus(s);
-  gpr_log(GPR_INFO, "Response streaming done.");
-}
-
-void DoHalfDuplex() {
-  gpr_log(GPR_INFO, "Sending half-duplex streaming rpc ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("half_duplex");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::ClientContext context;
-  std::unique_ptr<grpc::ClientReaderWriter<StreamingOutputCallRequest,
-                                           StreamingOutputCallResponse>>
-      stream(stub->HalfDuplexCall(&context));
-
-  StreamingOutputCallRequest request;
-  ResponseParameters* response_parameter = request.add_response_parameters();
-  for (unsigned int i = 0; i < response_stream_sizes.size(); ++i) {
-    response_parameter->set_size(response_stream_sizes[i]);
-    GPR_ASSERT(stream->Write(request));
-  }
-  stream->WritesDone();
-
-  unsigned int i = 0;
-  StreamingOutputCallResponse response;
-  while (stream->Read(&response)) {
-    GPR_ASSERT(response.payload().has_body());
-    GPR_ASSERT(response.payload().body() ==
-               grpc::string(response_stream_sizes[i], '\0'));
-    ++i;
-  }
-  GPR_ASSERT(response_stream_sizes.size() == i);
-  grpc::Status s = stream->Finish();
-  AssertOkOrPrintErrorStatus(s);
-  gpr_log(GPR_INFO, "Half-duplex streaming rpc done.");
-}
-
-void DoPingPong() {
-  gpr_log(GPR_INFO, "Sending Ping Pong streaming rpc ...");
-  std::shared_ptr<ChannelInterface> channel =
-      CreateChannelForTestCase("ping_pong");
-  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel));
-
-  grpc::ClientContext context;
-  std::unique_ptr<grpc::ClientReaderWriter<StreamingOutputCallRequest,
-                                           StreamingOutputCallResponse>>
-      stream(stub->FullDuplexCall(&context));
-
-  StreamingOutputCallRequest request;
-  request.set_response_type(grpc::testing::PayloadType::COMPRESSABLE);
-  ResponseParameters* response_parameter = request.add_response_parameters();
-  grpc::testing::Payload* payload = request.mutable_payload();
-  StreamingOutputCallResponse response;
-  for (unsigned int i = 0; i < request_stream_sizes.size(); ++i) {
-    response_parameter->set_size(response_stream_sizes[i]);
-    payload->set_body(grpc::string(request_stream_sizes[i], '\0'));
-    GPR_ASSERT(stream->Write(request));
-    GPR_ASSERT(stream->Read(&response));
-    GPR_ASSERT(response.payload().has_body());
-    GPR_ASSERT(response.payload().body() ==
-               grpc::string(response_stream_sizes[i], '\0'));
-  }
-
-  stream->WritesDone();
-  GPR_ASSERT(!stream->Read(&response));
-  grpc::Status s = stream->Finish();
-  AssertOkOrPrintErrorStatus(s);
-  gpr_log(GPR_INFO, "Ping pong streaming done.");
-}
-
 int main(int argc, char** argv) {
   grpc_init();
 
   ParseCommandLineFlags(&argc, &argv, true);
 
+  grpc::testing::InteropClient client(
+      CreateChannelForTestCase(FLAGS_test_case));
   if (FLAGS_test_case == "empty_unary") {
-    DoEmpty();
+    client.DoEmpty();
   } else if (FLAGS_test_case == "large_unary") {
-    DoLargeUnary();
+    client.DoLargeUnary();
   } else if (FLAGS_test_case == "client_streaming") {
-    DoRequestStreaming();
+    client.DoRequestStreaming();
   } else if (FLAGS_test_case == "server_streaming") {
-    DoResponseStreaming();
+    client.DoResponseStreaming();
   } else if (FLAGS_test_case == "slow_consumer") {
-    DoResponseStreamingWithSlowConsumer();
+    client.DoResponseStreamingWithSlowConsumer();
   } else if (FLAGS_test_case == "half_duplex") {
-    DoHalfDuplex();
+    client.DoHalfDuplex();
   } else if (FLAGS_test_case == "ping_pong") {
-    DoPingPong();
+    client.DoPingPong();
   } else if (FLAGS_test_case == "service_account_creds") {
-    DoServiceAccountCreds();
+    grpc::string json_key = GetServiceAccountJsonKey();
+    client.DoServiceAccountCreds(json_key, FLAGS_oauth_scope);
   } else if (FLAGS_test_case == "compute_engine_creds") {
-    DoComputeEngineCreds();
+    client.DoComputeEngineCreds(FLAGS_default_service_account,
+                                FLAGS_oauth_scope);
   } else if (FLAGS_test_case == "jwt_token_creds") {
-    DoJwtTokenCreds();
+    grpc::string json_key = GetServiceAccountJsonKey();
+    client.DoJwtTokenCreds(json_key);
   } else if (FLAGS_test_case == "all") {
-    DoEmpty();
-    DoLargeUnary();
-    DoRequestStreaming();
-    DoResponseStreaming();
-    DoHalfDuplex();
-    DoPingPong();
+    client.DoEmpty();
+    client.DoLargeUnary();
+    client.DoRequestStreaming();
+    client.DoResponseStreaming();
+    client.DoHalfDuplex();
+    client.DoPingPong();
     // service_account_creds and jwt_token_creds can only run with ssl.
     if (FLAGS_enable_ssl) {
-      DoServiceAccountCreds();
-      DoJwtTokenCreds();
+      grpc::string json_key = GetServiceAccountJsonKey();
+      client.DoServiceAccountCreds(json_key, FLAGS_oauth_scope);
+      client.DoJwtTokenCreds(json_key);
     }
     // compute_engine_creds only runs in GCE.
   } else {
@@ -470,6 +133,7 @@
         "service_account_creds|compute_engine_creds|jwt_token_creds",
         FLAGS_test_case.c_str());
   }
+  client.Reset(nullptr);
 
   grpc_shutdown();
   return 0;
diff --git a/test/cpp/interop/client_helper.cc b/test/cpp/interop/client_helper.cc
new file mode 100644
index 0000000..362e6af
--- /dev/null
+++ b/test/cpp/interop/client_helper.cc
@@ -0,0 +1,119 @@
+/*
+ *
+ * Copyright 2015, 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 "test/cpp/interop/client_helper.h"
+
+#include <fstream>
+#include <memory>
+#include <sstream>
+
+#include <unistd.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <gflags/gflags.h>
+#include <grpc++/channel_arguments.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/credentials.h>
+#include <grpc++/stream.h>
+#include "test/cpp/util/create_test_channel.h"
+
+DECLARE_bool(enable_ssl);
+DECLARE_bool(use_prod_roots);
+DECLARE_int32(server_port);
+DECLARE_string(server_host);
+DECLARE_string(server_host_override);
+DECLARE_string(test_case);
+DECLARE_string(default_service_account);
+DECLARE_string(service_account_key_file);
+DECLARE_string(oauth_scope);
+
+// In some distros, gflags is in the namespace google, and in some others,
+// in gflags. This hack is enabling us to find both.
+namespace google {}
+namespace gflags {}
+using namespace google;
+using namespace gflags;
+
+namespace grpc {
+namespace testing {
+
+grpc::string GetServiceAccountJsonKey() {
+  static grpc::string json_key;
+  if (json_key.empty()) {
+    std::ifstream json_key_file(FLAGS_service_account_key_file);
+    std::stringstream key_stream;
+    key_stream << json_key_file.rdbuf();
+    json_key = key_stream.str();
+  }
+  return json_key;
+}
+
+std::shared_ptr<ChannelInterface> CreateChannelForTestCase(
+    const grpc::string& test_case) {
+  GPR_ASSERT(FLAGS_server_port);
+  const int host_port_buf_size = 1024;
+  char host_port[host_port_buf_size];
+  snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
+           FLAGS_server_port);
+
+  if (test_case == "service_account_creds") {
+    std::unique_ptr<Credentials> creds;
+    GPR_ASSERT(FLAGS_enable_ssl);
+    grpc::string json_key = GetServiceAccountJsonKey();
+    creds = ServiceAccountCredentials(json_key, FLAGS_oauth_scope,
+                                      std::chrono::hours(1));
+    return CreateTestChannel(host_port, FLAGS_server_host_override,
+                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
+  } else if (test_case == "compute_engine_creds") {
+    std::unique_ptr<Credentials> creds;
+    GPR_ASSERT(FLAGS_enable_ssl);
+    creds = ComputeEngineCredentials();
+    return CreateTestChannel(host_port, FLAGS_server_host_override,
+                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
+  } else if (test_case == "jwt_token_creds") {
+    std::unique_ptr<Credentials> creds;
+    GPR_ASSERT(FLAGS_enable_ssl);
+    grpc::string json_key = GetServiceAccountJsonKey();
+    creds = JWTCredentials(json_key, std::chrono::hours(1));
+    return CreateTestChannel(host_port, FLAGS_server_host_override,
+                             FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
+  } else {
+    return CreateTestChannel(host_port, FLAGS_server_host_override,
+                             FLAGS_enable_ssl, FLAGS_use_prod_roots);
+  }
+}
+
+}  // namespace testing
+}  // namespace grpc
diff --git a/test/cpp/interop/client_helper.h b/test/cpp/interop/client_helper.h
new file mode 100644
index 0000000..897f974
--- /dev/null
+++ b/test/cpp/interop/client_helper.h
@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright 2015, 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_TEST_CPP_INTEROP_CLIENT_HELPER_H
+#define GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H
+
+#include <memory>
+
+#include <grpc++/config.h>
+#include <grpc++/channel_interface.h>
+
+namespace grpc {
+namespace testing {
+
+grpc::string GetServiceAccountJsonKey();
+
+std::shared_ptr<ChannelInterface> CreateChannelForTestCase(
+    const grpc::string& test_case);
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H
diff --git a/test/cpp/interop/interop_client.cc b/test/cpp/interop/interop_client.cc
new file mode 100644
index 0000000..fd9c2e0
--- /dev/null
+++ b/test/cpp/interop/interop_client.cc
@@ -0,0 +1,311 @@
+/*
+ *
+ * Copyright 2015, 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 "test/cpp/interop/interop_client.h"
+
+#include <memory>
+
+#include <unistd.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/client_context.h>
+#include <grpc++/status.h>
+#include <grpc++/stream.h>
+#include "test/cpp/interop/test.grpc.pb.h"
+#include "test/cpp/interop/empty.grpc.pb.h"
+#include "test/cpp/interop/messages.grpc.pb.h"
+
+namespace grpc {
+namespace testing {
+
+namespace {
+// The same value is defined by the Java client.
+const std::vector<int> request_stream_sizes = {27182, 8, 1828, 45904};
+const std::vector<int> response_stream_sizes = {31415, 9, 2653, 58979};
+const int kNumResponseMessages = 2000;
+const int kResponseMessageSize = 1030;
+const int kReceiveDelayMilliSeconds = 20;
+const int kLargeRequestSize = 314159;
+const int kLargeResponseSize = 271812;
+}  // namespace
+
+InteropClient::InteropClient(std::shared_ptr<ChannelInterface> channel)
+    : channel_(channel) {}
+
+void InteropClient::AssertOkOrPrintErrorStatus(const Status& s) {
+  if (s.IsOk()) {
+    return;
+  }
+  gpr_log(GPR_INFO, "Error status code: %d, message: %s", s.code(),
+          s.details().c_str());
+  GPR_ASSERT(0);
+}
+
+void InteropClient::DoEmpty() {
+  gpr_log(GPR_INFO, "Sending an empty rpc...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  Empty request = Empty::default_instance();
+  Empty response = Empty::default_instance();
+  ClientContext context;
+
+  Status s = stub->EmptyCall(&context, request, &response);
+  AssertOkOrPrintErrorStatus(s);
+
+  gpr_log(GPR_INFO, "Empty rpc done.");
+}
+
+// Shared code to set large payload, make rpc and check response payload.
+void InteropClient::PerformLargeUnary(SimpleRequest* request,
+                                      SimpleResponse* response) {
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  request->set_response_type(PayloadType::COMPRESSABLE);
+  request->set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request->mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s = stub->UnaryCall(&context, *request, response);
+
+  AssertOkOrPrintErrorStatus(s);
+  GPR_ASSERT(response->payload().type() == PayloadType::COMPRESSABLE);
+  GPR_ASSERT(response->payload().body() ==
+             grpc::string(kLargeResponseSize, '\0'));
+}
+
+void InteropClient::DoComputeEngineCreds(
+    const grpc::string& default_service_account,
+    const grpc::string& oauth_scope) {
+  gpr_log(GPR_INFO,
+          "Sending a large unary rpc with compute engine credentials ...");
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_fill_username(true);
+  request.set_fill_oauth_scope(true);
+  PerformLargeUnary(&request, &response);
+  gpr_log(GPR_INFO, "Got username %s", response.username().c_str());
+  gpr_log(GPR_INFO, "Got oauth_scope %s", response.oauth_scope().c_str());
+  GPR_ASSERT(!response.username().empty());
+  GPR_ASSERT(response.username().c_str() == default_service_account);
+  GPR_ASSERT(!response.oauth_scope().empty());
+  const char* oauth_scope_str = response.oauth_scope().c_str();
+  GPR_ASSERT(oauth_scope.find(oauth_scope_str) != grpc::string::npos);
+  gpr_log(GPR_INFO, "Large unary with compute engine creds done.");
+}
+
+void InteropClient::DoServiceAccountCreds(const grpc::string& username,
+                                          const grpc::string& oauth_scope) {
+  gpr_log(GPR_INFO,
+          "Sending a large unary rpc with service account credentials ...");
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_fill_username(true);
+  request.set_fill_oauth_scope(true);
+  PerformLargeUnary(&request, &response);
+  GPR_ASSERT(!response.username().empty());
+  GPR_ASSERT(!response.oauth_scope().empty());
+  GPR_ASSERT(username.find(response.username()) != grpc::string::npos);
+  const char* oauth_scope_str = response.oauth_scope().c_str();
+  GPR_ASSERT(oauth_scope.find(oauth_scope_str) != grpc::string::npos);
+  gpr_log(GPR_INFO, "Large unary with service account creds done.");
+}
+
+void InteropClient::DoJwtTokenCreds(const grpc::string& username) {
+  gpr_log(GPR_INFO, "Sending a large unary rpc with JWT token credentials ...");
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_fill_username(true);
+  PerformLargeUnary(&request, &response);
+  GPR_ASSERT(!response.username().empty());
+  GPR_ASSERT(username.find(response.username()) != grpc::string::npos);
+  gpr_log(GPR_INFO, "Large unary with JWT token creds done.");
+}
+
+void InteropClient::DoLargeUnary() {
+  gpr_log(GPR_INFO, "Sending a large unary rpc...");
+  SimpleRequest request;
+  SimpleResponse response;
+  PerformLargeUnary(&request, &response);
+  gpr_log(GPR_INFO, "Large unary done.");
+}
+
+void InteropClient::DoRequestStreaming() {
+  gpr_log(GPR_INFO, "Sending request steaming rpc ...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  StreamingInputCallRequest request;
+  StreamingInputCallResponse response;
+
+  std::unique_ptr<ClientWriter<StreamingInputCallRequest>> stream(
+      stub->StreamingInputCall(&context, &response));
+
+  int aggregated_payload_size = 0;
+  for (unsigned int i = 0; i < request_stream_sizes.size(); ++i) {
+    Payload* payload = request.mutable_payload();
+    payload->set_body(grpc::string(request_stream_sizes[i], '\0'));
+    GPR_ASSERT(stream->Write(request));
+    aggregated_payload_size += request_stream_sizes[i];
+  }
+  stream->WritesDone();
+  Status s = stream->Finish();
+
+  GPR_ASSERT(response.aggregated_payload_size() == aggregated_payload_size);
+  AssertOkOrPrintErrorStatus(s);
+  gpr_log(GPR_INFO, "Request streaming done.");
+}
+
+void InteropClient::DoResponseStreaming() {
+  gpr_log(GPR_INFO, "Receiving response steaming rpc ...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  StreamingOutputCallRequest request;
+  for (unsigned int i = 0; i < response_stream_sizes.size(); ++i) {
+    ResponseParameters* response_parameter = request.add_response_parameters();
+    response_parameter->set_size(response_stream_sizes[i]);
+  }
+  StreamingOutputCallResponse response;
+  std::unique_ptr<ClientReader<StreamingOutputCallResponse>> stream(
+      stub->StreamingOutputCall(&context, request));
+
+  unsigned int i = 0;
+  while (stream->Read(&response)) {
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(response_stream_sizes[i], '\0'));
+    ++i;
+  }
+  GPR_ASSERT(response_stream_sizes.size() == i);
+  Status s = stream->Finish();
+
+  AssertOkOrPrintErrorStatus(s);
+  gpr_log(GPR_INFO, "Response streaming done.");
+}
+
+void InteropClient::DoResponseStreamingWithSlowConsumer() {
+  gpr_log(GPR_INFO, "Receiving response steaming rpc with slow consumer ...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  StreamingOutputCallRequest request;
+
+  for (int i = 0; i < kNumResponseMessages; ++i) {
+    ResponseParameters* response_parameter = request.add_response_parameters();
+    response_parameter->set_size(kResponseMessageSize);
+  }
+  StreamingOutputCallResponse response;
+  std::unique_ptr<ClientReader<StreamingOutputCallResponse>> stream(
+      stub->StreamingOutputCall(&context, request));
+
+  int i = 0;
+  while (stream->Read(&response)) {
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(kResponseMessageSize, '\0'));
+    gpr_log(GPR_INFO, "received message %d", i);
+    usleep(kReceiveDelayMilliSeconds * 1000);
+    ++i;
+  }
+  GPR_ASSERT(kNumResponseMessages == i);
+  Status s = stream->Finish();
+
+  AssertOkOrPrintErrorStatus(s);
+  gpr_log(GPR_INFO, "Response streaming done.");
+}
+
+void InteropClient::DoHalfDuplex() {
+  gpr_log(GPR_INFO, "Sending half-duplex streaming rpc ...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  std::unique_ptr<ClientReaderWriter<StreamingOutputCallRequest,
+                                     StreamingOutputCallResponse>>
+      stream(stub->HalfDuplexCall(&context));
+
+  StreamingOutputCallRequest request;
+  ResponseParameters* response_parameter = request.add_response_parameters();
+  for (unsigned int i = 0; i < response_stream_sizes.size(); ++i) {
+    response_parameter->set_size(response_stream_sizes[i]);
+    GPR_ASSERT(stream->Write(request));
+  }
+  stream->WritesDone();
+
+  unsigned int i = 0;
+  StreamingOutputCallResponse response;
+  while (stream->Read(&response)) {
+    GPR_ASSERT(response.payload().has_body());
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(response_stream_sizes[i], '\0'));
+    ++i;
+  }
+  GPR_ASSERT(response_stream_sizes.size() == i);
+  Status s = stream->Finish();
+  AssertOkOrPrintErrorStatus(s);
+  gpr_log(GPR_INFO, "Half-duplex streaming rpc done.");
+}
+
+void InteropClient::DoPingPong() {
+  gpr_log(GPR_INFO, "Sending Ping Pong streaming rpc ...");
+  std::unique_ptr<TestService::Stub> stub(TestService::NewStub(channel_));
+
+  ClientContext context;
+  std::unique_ptr<ClientReaderWriter<StreamingOutputCallRequest,
+                                     StreamingOutputCallResponse>>
+      stream(stub->FullDuplexCall(&context));
+
+  StreamingOutputCallRequest request;
+  request.set_response_type(PayloadType::COMPRESSABLE);
+  ResponseParameters* response_parameter = request.add_response_parameters();
+  Payload* payload = request.mutable_payload();
+  StreamingOutputCallResponse response;
+  for (unsigned int i = 0; i < request_stream_sizes.size(); ++i) {
+    response_parameter->set_size(response_stream_sizes[i]);
+    payload->set_body(grpc::string(request_stream_sizes[i], '\0'));
+    GPR_ASSERT(stream->Write(request));
+    GPR_ASSERT(stream->Read(&response));
+    GPR_ASSERT(response.payload().has_body());
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(response_stream_sizes[i], '\0'));
+  }
+
+  stream->WritesDone();
+  GPR_ASSERT(!stream->Read(&response));
+  Status s = stream->Finish();
+  AssertOkOrPrintErrorStatus(s);
+  gpr_log(GPR_INFO, "Ping pong streaming done.");
+}
+
+}  // namespace testing
+}  // namespace grpc
diff --git a/test/cpp/interop/interop_client.h b/test/cpp/interop/interop_client.h
new file mode 100644
index 0000000..b0ab320
--- /dev/null
+++ b/test/cpp/interop/interop_client.h
@@ -0,0 +1,79 @@
+/*
+ *
+ * Copyright 2015, 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_TEST_CPP_INTEROP_INTEROP_CLIENT_H
+#define GRPC_TEST_CPP_INTEROP_INTEROP_CLIENT_H
+#include <memory>
+
+#include <grpc/grpc.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/status.h>
+#include "test/cpp/interop/messages.grpc.pb.h"
+
+namespace grpc {
+namespace testing {
+
+class InteropClient {
+ public:
+  explicit InteropClient(std::shared_ptr<ChannelInterface> channel);
+  ~InteropClient() {}
+
+  void Reset(std::shared_ptr<ChannelInterface> channel) { channel_ = channel; }
+
+  void DoEmpty();
+  void DoLargeUnary();
+  void DoPingPong();
+  void DoHalfDuplex();
+  void DoRequestStreaming();
+  void DoResponseStreaming();
+  void DoResponseStreamingWithSlowConsumer();
+  // Auth tests.
+  // username is a string containing the user email
+  void DoJwtTokenCreds(const grpc::string& username);
+  void DoComputeEngineCreds(const grpc::string& default_service_account,
+                            const grpc::string& oauth_scope);
+  // username is a string containing the user email
+  void DoServiceAccountCreds(const grpc::string& username,
+                             const grpc::string& oauth_scope);
+
+ private:
+  void PerformLargeUnary(SimpleRequest* request, SimpleResponse* response);
+  void AssertOkOrPrintErrorStatus(const Status& s);
+
+  std::shared_ptr<ChannelInterface> channel_;
+};
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPC_TEST_CPP_INTEROP_INTEROP_CLIENT_H
diff --git a/test/cpp/interop/server.cc b/test/cpp/interop/server.cc
index 780a737..d87493b 100644
--- a/test/cpp/interop/server.cc
+++ b/test/cpp/interop/server.cc
@@ -41,7 +41,6 @@
 #include <gflags/gflags.h>
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
-#include "test/core/end2end/data/ssl_test_data.h"
 #include <grpc++/config.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
@@ -49,9 +48,10 @@
 #include <grpc++/server_credentials.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
-#include "test/cpp/interop/test.pb.h"
-#include "test/cpp/interop/empty.pb.h"
-#include "test/cpp/interop/messages.pb.h"
+#include "test/cpp/interop/test.grpc.pb.h"
+#include "test/cpp/interop/empty.grpc.pb.h"
+#include "test/cpp/interop/messages.grpc.pb.h"
+#include "test/cpp/interop/server_helper.h"
 
 DEFINE_bool(enable_ssl, false, "Whether to use ssl/tls.");
 DEFINE_int32(port, 0, "Server port.");
@@ -211,15 +211,8 @@
 
   ServerBuilder builder;
   builder.RegisterService(&service);
-  std::shared_ptr<ServerCredentials> creds = grpc::InsecureServerCredentials();
-  if (FLAGS_enable_ssl) {
-    SslServerCredentialsOptions::PemKeyCertPair pkcp = {test_server1_key,
-							test_server1_cert};
-    SslServerCredentialsOptions ssl_opts;
-    ssl_opts.pem_root_certs = "";
-    ssl_opts.pem_key_cert_pairs.push_back(pkcp);
-    creds = grpc::SslServerCredentials(ssl_opts);
-  }
+  std::shared_ptr<ServerCredentials> creds =
+      grpc::testing::CreateInteropServerCredentials();
   builder.AddListeningPort(server_address.str(), creds);
   std::unique_ptr<Server> server(builder.BuildAndStart());
   gpr_log(GPR_INFO, "Server listening on %s", server_address.str().c_str());
diff --git a/test/cpp/interop/server_helper.cc b/test/cpp/interop/server_helper.cc
new file mode 100644
index 0000000..56597c8
--- /dev/null
+++ b/test/cpp/interop/server_helper.cc
@@ -0,0 +1,69 @@
+/*
+ *
+ * Copyright 2015, 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 "test/cpp/interop/server_helper.h"
+
+#include <memory>
+
+#include <gflags/gflags.h>
+#include "test/core/end2end/data/ssl_test_data.h"
+#include <grpc++/config.h>
+#include <grpc++/server_credentials.h>
+
+DECLARE_bool(enable_ssl);
+
+// In some distros, gflags is in the namespace google, and in some others,
+// in gflags. This hack is enabling us to find both.
+namespace google {}
+namespace gflags {}
+using namespace google;
+using namespace gflags;
+
+namespace grpc {
+namespace testing {
+
+std::shared_ptr<ServerCredentials> CreateInteropServerCredentials() {
+  if (FLAGS_enable_ssl) {
+    SslServerCredentialsOptions::PemKeyCertPair pkcp = {test_server1_key,
+                                                        test_server1_cert};
+    SslServerCredentialsOptions ssl_opts;
+    ssl_opts.pem_root_certs = "";
+    ssl_opts.pem_key_cert_pairs.push_back(pkcp);
+    return SslServerCredentials(ssl_opts);
+  } else {
+    return InsecureServerCredentials();
+  }
+}
+
+}  // namespace testing
+}  // namespace grpc
diff --git a/test/cpp/interop/server_helper.h b/test/cpp/interop/server_helper.h
new file mode 100644
index 0000000..f98e67b
--- /dev/null
+++ b/test/cpp/interop/server_helper.h
@@ -0,0 +1,49 @@
+/*
+ *
+ * Copyright 2015, 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_TEST_CPP_INTEROP_SERVER_HELPER_H
+#define GRPC_TEST_CPP_INTEROP_SERVER_HELPER_H
+
+#include <memory>
+
+#include <grpc++/server_credentials.h>
+
+namespace grpc {
+namespace testing {
+
+std::shared_ptr<ServerCredentials> CreateInteropServerCredentials();
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPC_TEST_CPP_INTEROP_SERVER_HELPER_H
diff --git a/test/cpp/qps/client.h b/test/cpp/qps/client.h
index cae7f44..2dc5b38 100644
--- a/test/cpp/qps/client.h
+++ b/test/cpp/qps/client.h
@@ -36,7 +36,7 @@
 
 #include "test/cpp/qps/histogram.h"
 #include "test/cpp/qps/timer.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 
 #include <condition_variable>
 #include <mutex>
@@ -104,7 +104,7 @@
 
   void EndThreads() { threads_.clear(); }
 
-  virtual void ThreadFunc(Histogram* histogram, size_t thread_idx) = 0;
+  virtual bool ThreadFunc(Histogram* histogram, size_t thread_idx) = 0;
 
  private:
   class Thread {
@@ -113,20 +113,24 @@
         : done_(false),
           new_(nullptr),
           impl_([this, idx, client]() {
-            for (;;) {
-              // run the loop body
-	      client->ThreadFunc(&histogram_, idx);
-              // lock, see if we're done
-              std::lock_guard<std::mutex> g(mu_);
-              if (done_) {return;}
-	      // check if we're marking, swap out the histogram if so
-	      if (new_) {
-                new_->Swap(&histogram_);
-                new_ = nullptr;
-                cv_.notify_one();
+              for (;;) {
+                // run the loop body
+        	      bool thread_still_ok = client->ThreadFunc(&histogram_, idx);
+                // lock, see if we're done
+                std::lock_guard<std::mutex> g(mu_);
+                if (!thread_still_ok) {
+                  gpr_log(GPR_ERROR, "Finishing client thread due to RPC error");
+                  done_ = true;
+                }
+                if (done_) {return;}
+        	      // check if we're marking, swap out the histogram if so
+        	      if (new_) {
+                        new_->Swap(&histogram_);
+                        new_ = nullptr;
+                        cv_.notify_one();
+                }
               }
-            }
-          }) {}
+            }) {}
 
     ~Thread() {
       {
diff --git a/test/cpp/qps/client_async.cc b/test/cpp/qps/client_async.cc
index 1ed3c71..0a6d9be 100644
--- a/test/cpp/qps/client_async.cc
+++ b/test/cpp/qps/client_async.cc
@@ -48,7 +48,7 @@
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
 #include "test/cpp/util/create_test_channel.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 #include "test/cpp/qps/timer.h"
 #include "test/cpp/qps/client.h"
 
@@ -137,13 +137,7 @@
       cli_cqs_.emplace_back(new CompletionQueue);
     }
 
-    auto payload_size = config.payload_size();
-    auto check_done = [payload_size](grpc::Status s, SimpleResponse* response) {
-      GPR_ASSERT(s.IsOk() && (response->payload().type() ==
-                              grpc::testing::PayloadType::COMPRESSABLE) &&
-                 (response->payload().body().length() ==
-                  static_cast<size_t>(payload_size)));
-    };
+    auto check_done = [](grpc::Status s, SimpleResponse* response) {};
 
     int t = 0;
     for (int i = 0; i < config.outstanding_rpcs_per_channel(); i++) {
@@ -179,10 +173,14 @@
     }
   }
 
-  void ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
+  bool ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
     void* got_tag;
     bool ok;
-    cli_cqs_[thread_idx]->Next(&got_tag, &ok);
+    switch (cli_cqs_[thread_idx]->AsyncNext(&got_tag, &ok, std::chrono::system_clock::now() + std::chrono::seconds(1))) {
+      case CompletionQueue::SHUTDOWN: return false;
+      case CompletionQueue::TIMEOUT: return true;
+      case CompletionQueue::GOT_EVENT: break;
+    }
 
     ClientRpcContext* ctx = ClientRpcContext::detag(got_tag);
     if (ctx->RunNextState(ok, histogram) == false) {
@@ -191,6 +189,8 @@
       ctx->StartNewClone();
       delete ctx;
     }
+
+    return true;
   }
 
   std::vector<std::unique_ptr<CompletionQueue>> cli_cqs_;
@@ -270,13 +270,7 @@
       cli_cqs_.emplace_back(new CompletionQueue);
     }
 
-    auto payload_size = config.payload_size();
-    auto check_done = [payload_size](grpc::Status s, SimpleResponse *response) {
-      GPR_ASSERT(s.IsOk() && (response->payload().type() ==
-                              grpc::testing::PayloadType::COMPRESSABLE) &&
-                 (response->payload().body().length() ==
-                  static_cast<size_t>(payload_size)));
-    };
+    auto check_done = [](grpc::Status s, SimpleResponse* response) {};
 
     int t = 0;
     for (int i = 0; i < config.outstanding_rpcs_per_channel(); i++) {
@@ -313,10 +307,14 @@
     }
   }
 
-  void ThreadFunc(Histogram *histogram, size_t thread_idx) GRPC_OVERRIDE {
+  bool ThreadFunc(Histogram *histogram, size_t thread_idx) GRPC_OVERRIDE {
     void *got_tag;
     bool ok;
-    cli_cqs_[thread_idx]->Next(&got_tag, &ok);
+    switch (cli_cqs_[thread_idx]->AsyncNext(&got_tag, &ok, std::chrono::system_clock::now() + std::chrono::seconds(1))) {
+      case CompletionQueue::SHUTDOWN: return false;
+      case CompletionQueue::TIMEOUT: return true;
+      case CompletionQueue::GOT_EVENT: break;
+    }
 
     ClientRpcContext *ctx = ClientRpcContext::detag(got_tag);
     if (ctx->RunNextState(ok, histogram) == false) {
@@ -325,6 +323,8 @@
       ctx->StartNewClone();
       delete ctx;
     }
+
+    return true;
   }
 
   std::vector<std::unique_ptr<CompletionQueue>> cli_cqs_;
diff --git a/test/cpp/qps/client_sync.cc b/test/cpp/qps/client_sync.cc
index 77da172..aea5a0f 100644
--- a/test/cpp/qps/client_sync.cc
+++ b/test/cpp/qps/client_sync.cc
@@ -55,7 +55,7 @@
 #include <gtest/gtest.h>
 #include "test/cpp/util/create_test_channel.h"
 #include "test/cpp/qps/client.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 #include "test/cpp/qps/histogram.h"
 #include "test/cpp/qps/timer.h"
 
@@ -83,13 +83,14 @@
     SynchronousClient(config) {StartThreads(num_threads_);}
   ~SynchronousUnaryClient() {}
   
-  void ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
+  bool ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
     auto* stub = channels_[thread_idx % channels_.size()].get_stub();
     double start = Timer::Now();
     grpc::ClientContext context;
     grpc::Status s =
         stub->UnaryCall(&context, request_, &responses_[thread_idx]);
     histogram->Add((Timer::Now() - start) * 1e9);
+    return s.IsOk();
   }
 };
 
@@ -111,11 +112,13 @@
     }
   }
 
-  void ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
+  bool ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
     double start = Timer::Now();
-    EXPECT_TRUE(stream_->Write(request_));
-    EXPECT_TRUE(stream_->Read(&responses_[thread_idx]));
-    histogram->Add((Timer::Now() - start) * 1e9);
+    if (stream_->Write(request_) && stream_->Read(&responses_[thread_idx])) {
+      histogram->Add((Timer::Now() - start) * 1e9);
+      return true;
+    }
+    return false;
   }
   private:
     grpc::ClientContext context_;
diff --git a/test/cpp/qps/driver.h b/test/cpp/qps/driver.h
index 7a81b70..b3a8bf8 100644
--- a/test/cpp/qps/driver.h
+++ b/test/cpp/qps/driver.h
@@ -35,7 +35,7 @@
 #define TEST_QPS_DRIVER_H
 
 #include "test/cpp/qps/histogram.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/qps/histogram.h b/test/cpp/qps/histogram.h
index 7ba00e9..0547b72 100644
--- a/test/cpp/qps/histogram.h
+++ b/test/cpp/qps/histogram.h
@@ -35,7 +35,7 @@
 #define TEST_QPS_HISTOGRAM_H
 
 #include <grpc/support/histogram.h>
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 
 namespace grpc {
 namespace testing {
@@ -50,10 +50,10 @@
 
   void Merge(Histogram* h) { gpr_histogram_merge(impl_, h->impl_); }
   void Add(double value) { gpr_histogram_add(impl_, value); }
-  double Percentile(double pctile) {
+  double Percentile(double pctile) const {
     return gpr_histogram_percentile(impl_, pctile);
   }
-  double Count() { return gpr_histogram_count(impl_); }
+  double Count() const { return gpr_histogram_count(impl_); }
   void Swap(Histogram* other) { std::swap(impl_, other->impl_); }
   void FillProto(HistogramData* p) {
     size_t n;
diff --git a/test/cpp/qps/qps_driver.cc b/test/cpp/qps/qps_driver.cc
index f42d538..220f826 100644
--- a/test/cpp/qps/qps_driver.cc
+++ b/test/cpp/qps/qps_driver.cc
@@ -35,7 +35,7 @@
 #include <grpc/support/log.h>
 
 #include "test/cpp/qps/driver.h"
-#include "test/cpp/qps/stats.h"
+#include "test/cpp/qps/report.h"
 
 DEFINE_int32(num_clients, 1, "Number of client binaries");
 DEFINE_int32(num_servers, 1, "Number of server binaries");
@@ -65,7 +65,6 @@
 using grpc::testing::ServerType;
 using grpc::testing::RpcType;
 using grpc::testing::ResourceUsage;
-using grpc::testing::sum;
 
 // In some distros, gflags is in the namespace google, and in some others,
 // in gflags. This hack is enabling us to find both.
@@ -105,37 +104,9 @@
                             server_config, FLAGS_num_servers,
                             FLAGS_warmup_seconds, FLAGS_benchmark_seconds);
 
-  gpr_log(GPR_INFO, "QPS: %.1f",
-          result.latencies.Count() /
-              average(result.client_resources,
-                      [](ResourceUsage u) { return u.wall_time; }));
-
-  gpr_log(GPR_INFO, "Latencies (50/95/99/99.9%%-ile): %.1f/%.1f/%.1f/%.1f us",
-          result.latencies.Percentile(50) / 1000,
-          result.latencies.Percentile(95) / 1000,
-          result.latencies.Percentile(99) / 1000,
-          result.latencies.Percentile(99.9) / 1000);
-
-  gpr_log(GPR_INFO, "Server system time: %.2f%%",
-          100.0 * sum(result.server_resources,
-                      [](ResourceUsage u) { return u.system_time; }) /
-              sum(result.server_resources,
-                  [](ResourceUsage u) { return u.wall_time; }));
-  gpr_log(GPR_INFO, "Server user time:   %.2f%%",
-          100.0 * sum(result.server_resources,
-                      [](ResourceUsage u) { return u.user_time; }) /
-              sum(result.server_resources,
-                  [](ResourceUsage u) { return u.wall_time; }));
-  gpr_log(GPR_INFO, "Client system time: %.2f%%",
-          100.0 * sum(result.client_resources,
-                      [](ResourceUsage u) { return u.system_time; }) /
-              sum(result.client_resources,
-                  [](ResourceUsage u) { return u.wall_time; }));
-  gpr_log(GPR_INFO, "Client user time:   %.2f%%",
-          100.0 * sum(result.client_resources,
-                      [](ResourceUsage u) { return u.user_time; }) /
-              sum(result.client_resources,
-                  [](ResourceUsage u) { return u.wall_time; }));
+  ReportQPSPerCore(result, server_config);
+  ReportLatency(result);
+  ReportTimes(result);
 
   grpc_shutdown();
   return 0;
diff --git a/test/cpp/qps/report.cc b/test/cpp/qps/report.cc
new file mode 100644
index 0000000..29d88da
--- /dev/null
+++ b/test/cpp/qps/report.cc
@@ -0,0 +1,94 @@
+/*
+ *
+ * Copyright 2015, 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 "test/cpp/qps/report.h"
+
+#include <grpc/support/log.h>
+#include "test/cpp/qps/stats.h"
+
+namespace grpc {
+namespace testing {
+
+// QPS: XXX
+void ReportQPS(const ScenarioResult& result) {
+  gpr_log(GPR_INFO, "QPS: %.1f",
+          result.latencies.Count() /
+              average(result.client_resources,
+                      [](ResourceUsage u) { return u.wall_time; }));
+}
+
+// QPS: XXX (YYY/server core)
+void ReportQPSPerCore(const ScenarioResult& result, const ServerConfig& server_config) {
+  auto qps = 
+      result.latencies.Count() /
+      average(result.client_resources,
+          [](ResourceUsage u) { return u.wall_time; });
+
+  gpr_log(GPR_INFO, "QPS: %.1f (%.1f/server core)", qps, qps/server_config.threads());
+}
+
+// Latency (50/90/95/99/99.9%-ile): AA/BB/CC/DD/EE us
+void ReportLatency(const ScenarioResult& result) {
+  gpr_log(GPR_INFO, "Latencies (50/90/95/99/99.9%%-ile): %.1f/%.1f/%.1f/%.1f/%.1f us",
+          result.latencies.Percentile(50) / 1000,
+          result.latencies.Percentile(90) / 1000,
+          result.latencies.Percentile(95) / 1000,
+          result.latencies.Percentile(99) / 1000,
+          result.latencies.Percentile(99.9) / 1000);
+}
+
+void ReportTimes(const ScenarioResult& result) {
+  gpr_log(GPR_INFO, "Server system time: %.2f%%",
+          100.0 * sum(result.server_resources,
+                      [](ResourceUsage u) { return u.system_time; }) /
+              sum(result.server_resources,
+                  [](ResourceUsage u) { return u.wall_time; }));
+  gpr_log(GPR_INFO, "Server user time:   %.2f%%",
+          100.0 * sum(result.server_resources,
+                      [](ResourceUsage u) { return u.user_time; }) /
+              sum(result.server_resources,
+                  [](ResourceUsage u) { return u.wall_time; }));
+  gpr_log(GPR_INFO, "Client system time: %.2f%%",
+          100.0 * sum(result.client_resources,
+                      [](ResourceUsage u) { return u.system_time; }) /
+              sum(result.client_resources,
+                  [](ResourceUsage u) { return u.wall_time; }));
+  gpr_log(GPR_INFO, "Client user time:   %.2f%%",
+          100.0 * sum(result.client_resources,
+                      [](ResourceUsage u) { return u.user_time; }) /
+              sum(result.client_resources,
+                  [](ResourceUsage u) { return u.wall_time; }));
+}
+
+}  // namespace testing
+}  // namespace grpc
diff --git a/test/cpp/qps/report.h b/test/cpp/qps/report.h
new file mode 100644
index 0000000..343e426
--- /dev/null
+++ b/test/cpp/qps/report.h
@@ -0,0 +1,57 @@
+/*
+ *
+ * Copyright 2015, 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 TEST_QPS_REPORT_H
+#define TEST_QPS_REPORT_H
+
+#include "test/cpp/qps/driver.h"
+
+namespace grpc {
+namespace testing {
+
+// QPS: XXX
+void ReportQPS(const ScenarioResult& result);
+// QPS: XXX (YYY/server core)
+void ReportQPSPerCore(const ScenarioResult& result, const ServerConfig& config);
+// Latency (50/90/95/99/99.9%-ile): AA/BB/CC/DD/EE us
+void ReportLatency(const ScenarioResult& result);
+// Server system time: XX%
+// Server user time: XX%
+// Client system time: XX%
+// Client user time: XX%
+void ReportTimes(const ScenarioResult& result);
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif
diff --git a/test/cpp/qps/server.h b/test/cpp/qps/server.h
index ef71cb9..68e0115 100644
--- a/test/cpp/qps/server.h
+++ b/test/cpp/qps/server.h
@@ -35,7 +35,7 @@
 #define TEST_QPS_SERVER_H
 
 #include "test/cpp/qps/timer.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index 65c170a..b19c443 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -52,7 +52,7 @@
 #include <grpc++/stream.h>
 #include <gtest/gtest.h>
 #include "src/cpp/server/thread_pool.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 #include "test/cpp/qps/server.h"
 
 #include <grpc/grpc.h>
@@ -97,15 +97,15 @@
         bool ok;
         void* got_tag;
         while (srv_cq_.Next(&got_tag, &ok)) {
-	  ServerRpcContext* ctx = detag(got_tag);
-	  // The tag is a pointer to an RPC context to invoke
-	  if (ctx->RunNextState(ok) == false) {
-	    // this RPC context is done, so refresh it
+          ServerRpcContext* ctx = detag(got_tag);
+          // The tag is a pointer to an RPC context to invoke
+          if (ctx->RunNextState(ok) == false) {
+            // this RPC context is done, so refresh it
             std::lock_guard<std::mutex> g(shutdown_mutex_);
             if (!shutdown_) {
               ctx->Reset();
             }
-	  }
+          }
         }
         return;
       }));
@@ -175,8 +175,9 @@
    private:
     bool finisher(bool) { return false; }
     bool invoker(bool ok) {
-      if (!ok)
-	return false;
+      if (!ok) {
+        return false;
+      }
 
       ResponseType response;
 
@@ -230,8 +231,9 @@
 
    private:
     bool request_done(bool ok) {
-      if (!ok)
-	return false;
+      if (!ok) {
+        return false;
+      }
       stream_.Read(&req_, AsyncQpsServerTest::tag(this));
       next_state_ = &ServerRpcContextStreamingImpl::read_done;
       return true;
diff --git a/test/cpp/qps/server_sync.cc b/test/cpp/qps/server_sync.cc
index 9964429..2770233 100644
--- a/test/cpp/qps/server_sync.cc
+++ b/test/cpp/qps/server_sync.cc
@@ -47,7 +47,7 @@
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
 #include "src/cpp/server/thread_pool.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 #include "test/cpp/qps/server.h"
 #include "test/cpp/qps/timer.h"
 
diff --git a/test/cpp/qps/smoke_test.cc b/test/cpp/qps/smoke_test.cc
new file mode 100644
index 0000000..c9d321f
--- /dev/null
+++ b/test/cpp/qps/smoke_test.cc
@@ -0,0 +1,149 @@
+/*
+ *
+ * Copyright 2015, 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 <grpc/support/log.h>
+
+#include "test/cpp/qps/driver.h"
+#include "test/cpp/qps/report.h"
+
+namespace grpc {
+namespace testing {
+
+static const int WARMUP = 5;
+static const int BENCHMARK = 10;
+
+static void RunSynchronousUnaryPingPong() {
+  gpr_log(GPR_INFO, "Running Synchronous Unary Ping Pong");
+
+  ClientConfig client_config;
+  client_config.set_client_type(SYNCHRONOUS_CLIENT);
+  client_config.set_enable_ssl(false);
+  client_config.set_outstanding_rpcs_per_channel(1);
+  client_config.set_client_channels(1);
+  client_config.set_payload_size(1);
+  client_config.set_rpc_type(UNARY);
+
+  ServerConfig server_config;
+  server_config.set_server_type(SYNCHRONOUS_SERVER);
+  server_config.set_enable_ssl(false);
+  server_config.set_threads(1);
+
+  auto result = RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK);
+
+  ReportQPS(result);
+  ReportLatency(result);
+}
+
+static void RunSynchronousStreamingPingPong() {
+  gpr_log(GPR_INFO, "Running Synchronous Streaming Ping Pong");
+
+  ClientConfig client_config;
+  client_config.set_client_type(SYNCHRONOUS_CLIENT);
+  client_config.set_enable_ssl(false);
+  client_config.set_outstanding_rpcs_per_channel(1);
+  client_config.set_client_channels(1);
+  client_config.set_payload_size(1);
+  client_config.set_rpc_type(STREAMING);
+
+  ServerConfig server_config;
+  server_config.set_server_type(SYNCHRONOUS_SERVER);
+  server_config.set_enable_ssl(false);
+  server_config.set_threads(1);
+
+  auto result = RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK);
+
+  ReportQPS(result);
+  ReportLatency(result);
+}
+
+static void RunAsyncUnaryPingPong() {
+  gpr_log(GPR_INFO, "Running Async Unary Ping Pong");
+
+  ClientConfig client_config;
+  client_config.set_client_type(ASYNC_CLIENT);
+  client_config.set_enable_ssl(false);
+  client_config.set_outstanding_rpcs_per_channel(1);
+  client_config.set_client_channels(1);
+  client_config.set_payload_size(1);
+  client_config.set_async_client_threads(1);
+  client_config.set_rpc_type(UNARY);
+
+  ServerConfig server_config;
+  server_config.set_server_type(ASYNC_SERVER);
+  server_config.set_enable_ssl(false);
+  server_config.set_threads(1);
+
+  auto result = RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK);
+
+  ReportQPS(result);
+  ReportLatency(result);
+}
+
+static void RunQPS() {
+  gpr_log(GPR_INFO, "Running QPS test");
+
+  ClientConfig client_config;
+  client_config.set_client_type(ASYNC_CLIENT);
+  client_config.set_enable_ssl(false);
+  client_config.set_outstanding_rpcs_per_channel(1000);
+  client_config.set_client_channels(8);
+  client_config.set_payload_size(1);
+  client_config.set_async_client_threads(8);
+  client_config.set_rpc_type(UNARY);
+
+  ServerConfig server_config;
+  server_config.set_server_type(ASYNC_SERVER);
+  server_config.set_enable_ssl(false);
+  server_config.set_threads(4);
+
+  auto result = RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK);
+
+  ReportQPSPerCore(result, server_config);
+  ReportLatency(result);
+}
+
+}  // namespace testing
+}  // namespace grpc
+
+int main(int argc, char** argv) {
+  grpc_init();
+
+  using namespace grpc::testing;
+  RunSynchronousStreamingPingPong();
+  RunSynchronousUnaryPingPong();
+  RunAsyncUnaryPingPong();
+  RunQPS();
+
+  grpc_shutdown();
+  return 0;
+}
diff --git a/test/cpp/qps/smoke_test.sh b/test/cpp/qps/smoke_test.sh
new file mode 100755
index 0000000..ba7f0a4
--- /dev/null
+++ b/test/cpp/qps/smoke_test.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# performs a single qps run with one client and one server
+
+set -ex
+
+cd $(dirname $0)/../../..
+
+killall qps_worker || true
+
+config=opt
+
+NUMCPUS=`python2.7 -c 'import multiprocessing; print multiprocessing.cpu_count()'`
+
+make CONFIG=$config qps_worker qps_smoke_test -j$NUMCPUS
+
+bins/$config/qps_worker -driver_port 10000 -server_port 10001 &
+PID1=$!
+bins/$config/qps_worker -driver_port 10010 -server_port 10011 &
+PID2=$!
+
+export QPS_WORKERS="localhost:10000,localhost:10010"
+
+bins/$config/qps_smoke_test $*
+
+kill -2 $PID1 $PID2
+wait
+
diff --git a/test/cpp/qps/worker.cc b/test/cpp/qps/worker.cc
index b6830cc..101eb9f 100644
--- a/test/cpp/qps/worker.cc
+++ b/test/cpp/qps/worker.cc
@@ -55,7 +55,7 @@
 #include <grpc++/stream.h>
 #include "test/core/util/grpc_profiler.h"
 #include "test/cpp/util/create_test_channel.h"
-#include "test/cpp/qps/qpstest.pb.h"
+#include "test/cpp/qps/qpstest.grpc.pb.h"
 #include "test/cpp/qps/client.h"
 #include "test/cpp/qps/server.h"
 
diff --git a/test/cpp/util/cli_call_test.cc b/test/cpp/util/cli_call_test.cc
index 91fc40c..32ef392 100644
--- a/test/cpp/util/cli_call_test.cc
+++ b/test/cpp/util/cli_call_test.cc
@@ -33,7 +33,7 @@
 
 #include "test/core/util/test_config.h"
 #include "test/cpp/util/cli_call.h"
-#include "test/cpp/util/echo.pb.h"
+#include "test/cpp/util/echo.grpc.pb.h"
 #include "src/cpp/server/thread_pool.h"
 #include <grpc++/channel_arguments.h>
 #include <grpc++/channel_interface.h>
diff --git a/tools/distpackages/build_deb_packages.sh b/tools/distpackages/build_deb_packages.sh
index 366a518..0beb41e 100755
--- a/tools/distpackages/build_deb_packages.sh
+++ b/tools/distpackages/build_deb_packages.sh
@@ -45,7 +45,13 @@
   pkg_version=$(cat /version.txt)
 fi
 version="${pkg_version}.0"
-echo "Target release => $pkg_version"
+release_tag="release-${pkg_version//./_}"
+echo "Target release => $pkg_version, will checkout tag $release_tag"
+
+# Switch grpc_root to the release tag
+pushd $grpc_root
+git checkout $release_tag || { echo "bad release tag ${release_tag}"; exit 1; }
+popd
 
 if [ -f /.dockerinit ]; then
   # We're in Docker where uname -p returns "unknown".
diff --git a/tools/gce_setup/grpc_docker.sh b/tools/gce_setup/grpc_docker.sh
index dc48098..4063429 100755
--- a/tools/gce_setup/grpc_docker.sh
+++ b/tools/gce_setup/grpc_docker.sh
@@ -1041,6 +1041,35 @@
   echo $the_cmd
 }
 
+# constructs the full dockerized python service_account auth interop test cmd.
+#
+# call-seq:
+#   flags= .... # generic flags to include the command
+#   cmd=$($grpc_gen_test_cmd $flags)
+grpc_cloud_prod_auth_service_account_creds_gen_python_cmd() {
+  local cmd_prefix="sudo docker run grpc/ruby bin/bash -l -c";
+  local gfe_flags=$(_grpc_prod_gfe_flags)
+  local added_gfe_flags=$(_grpc_default_creds_test_flags)
+  local env_prefix="SSL_CERT_FILE=/cacerts/roots.pem"
+  env_prefix+=" GOOGLE_APPLICATION_CREDENTIALS=/service_account/stubbyCloudTestingTest-7dd63462c60c.json"
+  local the_cmd="$cmd_prefix '$env_prefix python -B -m interop.client --use_tls $gfe_flags $added_gfe_flags $@'"
+  echo $the_cmd
+}
+
+# constructs the full dockerized python gce auth interop test cmd.
+#
+# call-seq:
+#   flags= .... # generic flags to include the command
+#   cmd=$($grpc_gen_test_cmd $flags)
+grpc_cloud_prod_auth_compute_engine_creds_gen_python_cmd() {
+  local cmd_prefix="sudo docker run grpc/ruby bin/bash -l -c";
+  local gfe_flags=$(_grpc_prod_gfe_flags)
+  local added_gfe_flags=$(_grpc_gce_test_flags)
+  local env_prefix="SSL_CERT_FILE=/cacerts/roots.pem"
+  local the_cmd="$cmd_prefix '$env_prefix python -B -m interop.client --use_tls $gfe_flags $added_gfe_flags $@'"
+  echo $the_cmd
+}
+
 # constructs the full dockerized java interop test cmd.
 #
 # call-seq:
diff --git a/tools/gce_setup/interop_test_runner.sh b/tools/gce_setup/interop_test_runner.sh
index 7f0b5ba..1c6122e 100755
--- a/tools/gce_setup/interop_test_runner.sh
+++ b/tools/gce_setup/interop_test_runner.sh
@@ -36,7 +36,7 @@
 main() {
   source grpc_docker.sh
   test_cases=(large_unary empty_unary ping_pong client_streaming server_streaming cancel_after_begin cancel_after_first_response)
-  clients=(cxx java go ruby node python csharp_mono)
+  clients=(cxx java go ruby node python csharp_mono php)
   servers=(cxx java go ruby node python csharp_mono)
   for test_case in "${test_cases[@]}"
   do
diff --git a/vsprojects/vs2010/grpc++.vcxproj b/vsprojects/vs2010/grpc++.vcxproj
index 0ee4331..003355e 100644
--- a/vsprojects/vs2010/grpc++.vcxproj
+++ b/vsprojects/vs2010/grpc++.vcxproj
@@ -93,6 +93,12 @@
     <ClInclude Include="..\..\include\grpc++\impl\rpc_method.h" />
     <ClInclude Include="..\..\include\grpc++\impl\rpc_service_method.h" />
     <ClInclude Include="..\..\include\grpc++\impl\service_type.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync_no_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd_no_cxx11.h" />
     <ClInclude Include="..\..\include\grpc++\server.h" />
     <ClInclude Include="..\..\include\grpc++\server_builder.h" />
     <ClInclude Include="..\..\include\grpc++\server_context.h" />
@@ -104,6 +110,8 @@
     <ClInclude Include="..\..\include\grpc++\thread_pool_interface.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\src\cpp\client\secure_credentials.h" />
+    <ClInclude Include="..\..\src\cpp\server\secure_server_credentials.h" />
     <ClInclude Include="..\..\src\cpp\client\channel.h" />
     <ClInclude Include="..\..\src\cpp\proto\proto_utils.h" />
     <ClInclude Include="..\..\src\cpp\server\thread_pool.h" />
diff --git a/vsprojects/vs2010/grpc++.vcxproj.filters b/vsprojects/vs2010/grpc++.vcxproj.filters
index ed93dae..6466a0f 100644
--- a/vsprojects/vs2010/grpc++.vcxproj.filters
+++ b/vsprojects/vs2010/grpc++.vcxproj.filters
@@ -132,6 +132,24 @@
     <ClInclude Include="..\..\include\grpc++\impl\service_type.h">
       <Filter>include\grpc++\impl</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync_no_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd_no_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\include\grpc++\server.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>
@@ -161,6 +179,12 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\src\cpp\client\secure_credentials.h">
+      <Filter>src\cpp\client</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\cpp\server\secure_server_credentials.h">
+      <Filter>src\cpp\server</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\src\cpp\client\channel.h">
       <Filter>src\cpp\client</Filter>
     </ClInclude>
diff --git a/vsprojects/vs2013/grpc++.vcxproj b/vsprojects/vs2013/grpc++.vcxproj
index d545a94..dff5881 100644
--- a/vsprojects/vs2013/grpc++.vcxproj
+++ b/vsprojects/vs2013/grpc++.vcxproj
@@ -95,6 +95,12 @@
     <ClInclude Include="..\..\include\grpc++\impl\rpc_method.h" />
     <ClInclude Include="..\..\include\grpc++\impl\rpc_service_method.h" />
     <ClInclude Include="..\..\include\grpc++\impl\service_type.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\sync_no_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd_cxx11.h" />
+    <ClInclude Include="..\..\include\grpc++\impl\thd_no_cxx11.h" />
     <ClInclude Include="..\..\include\grpc++\server.h" />
     <ClInclude Include="..\..\include\grpc++\server_builder.h" />
     <ClInclude Include="..\..\include\grpc++\server_context.h" />
@@ -106,6 +112,8 @@
     <ClInclude Include="..\..\include\grpc++\thread_pool_interface.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\src\cpp\client\secure_credentials.h" />
+    <ClInclude Include="..\..\src\cpp\server\secure_server_credentials.h" />
     <ClInclude Include="..\..\src\cpp\client\channel.h" />
     <ClInclude Include="..\..\src\cpp\proto\proto_utils.h" />
     <ClInclude Include="..\..\src\cpp\server\thread_pool.h" />
diff --git a/vsprojects/vs2013/grpc++.vcxproj.filters b/vsprojects/vs2013/grpc++.vcxproj.filters
index ed93dae..6466a0f 100644
--- a/vsprojects/vs2013/grpc++.vcxproj.filters
+++ b/vsprojects/vs2013/grpc++.vcxproj.filters
@@ -132,6 +132,24 @@
     <ClInclude Include="..\..\include\grpc++\impl\service_type.h">
       <Filter>include\grpc++\impl</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\sync_no_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\impl\thd_no_cxx11.h">
+      <Filter>include\grpc++\impl</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\include\grpc++\server.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>
@@ -161,6 +179,12 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\src\cpp\client\secure_credentials.h">
+      <Filter>src\cpp\client</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\cpp\server\secure_server_credentials.h">
+      <Filter>src\cpp\server</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\src\cpp\client\channel.h">
       <Filter>src\cpp\client</Filter>
     </ClInclude>