Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 3 | * Copyright 2015 gRPC authors. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 8 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 10 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 16 | * |
| 17 | */ |
| 18 | |
Craig Tiller | c7762a8 | 2016-03-28 10:13:08 -0700 | [diff] [blame] | 19 | #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 20 | |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 21 | #include <limits.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 22 | #include <math.h> |
| 23 | #include <stdio.h> |
| 24 | #include <string.h> |
| 25 | |
Craig Tiller | 0f31080 | 2016-10-26 16:25:56 -0700 | [diff] [blame] | 26 | #include <grpc/slice_buffer.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 27 | #include <grpc/support/alloc.h> |
| 28 | #include <grpc/support/log.h> |
Craig Tiller | 285b882 | 2015-06-17 15:58:13 -0700 | [diff] [blame] | 29 | #include <grpc/support/string_util.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 30 | #include <grpc/support/useful.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 31 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 32 | #include "src/core/ext/transport/chttp2/transport/frame_data.h" |
Craig Tiller | c7762a8 | 2016-03-28 10:13:08 -0700 | [diff] [blame] | 33 | #include "src/core/ext/transport/chttp2/transport/internal.h" |
Craig Tiller | 599db64 | 2017-01-05 11:21:59 -0800 | [diff] [blame] | 34 | #include "src/core/ext/transport/chttp2/transport/varint.h" |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 35 | #include "src/core/lib/channel/channel_args.h" |
Muxi Yan | e87a7e1 | 2017-06-29 16:53:24 -0700 | [diff] [blame] | 36 | #include "src/core/lib/compression/stream_compression.h" |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 37 | #include "src/core/lib/debug/stats.h" |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 38 | #include "src/core/lib/http/parser.h" |
Craig Tiller | f1633a9 | 2017-06-19 10:01:52 -0700 | [diff] [blame] | 39 | #include "src/core/lib/iomgr/executor.h" |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 40 | #include "src/core/lib/iomgr/timer.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 41 | #include "src/core/lib/profiling/timers.h" |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 42 | #include "src/core/lib/slice/slice_internal.h" |
Craig Tiller | 0f31080 | 2016-10-26 16:25:56 -0700 | [diff] [blame] | 43 | #include "src/core/lib/slice/slice_string_helpers.h" |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 44 | #include "src/core/lib/support/env.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 45 | #include "src/core/lib/support/string.h" |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 46 | #include "src/core/lib/transport/error_utils.h" |
| 47 | #include "src/core/lib/transport/http2_errors.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 48 | #include "src/core/lib/transport/static_metadata.h" |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 49 | #include "src/core/lib/transport/status_conversion.h" |
Robbie Shade | 710d242 | 2016-07-13 15:15:38 -0400 | [diff] [blame] | 50 | #include "src/core/lib/transport/timeout_encoding.h" |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 51 | #include "src/core/lib/transport/transport.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 52 | #include "src/core/lib/transport/transport_impl.h" |
Craig Tiller | 08a1cf8 | 2015-06-29 09:37:52 -0700 | [diff] [blame] | 53 | |
ctiller | 493fbcc | 2014-12-07 15:09:10 -0800 | [diff] [blame] | 54 | #define DEFAULT_WINDOW 65535 |
| 55 | #define DEFAULT_CONNECTION_WINDOW_TARGET (1024 * 1024) |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 56 | #define MAX_WINDOW 0x7fffffffu |
Craig Tiller | 0a5a318 | 2017-01-13 16:54:03 -0800 | [diff] [blame] | 57 | #define MAX_WRITE_BUFFER_SIZE (64 * 1024 * 1024) |
Mark D. Roth | 8373750 | 2017-06-09 07:27:16 -0700 | [diff] [blame] | 58 | #define DEFAULT_MAX_HEADER_LIST_SIZE (8 * 1024) |
Mark D. Roth | bc84672 | 2016-05-04 10:53:50 -0700 | [diff] [blame] | 59 | |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 60 | #define DEFAULT_CLIENT_KEEPALIVE_TIME_MS INT_MAX |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 61 | #define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */ |
| 62 | #define DEFAULT_SERVER_KEEPALIVE_TIME_MS 7200000 /* 2 hours */ |
| 63 | #define DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */ |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 64 | #define DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS false |
Yuchen Zeng | 8b0a4d2 | 2017-04-03 11:24:42 -0700 | [diff] [blame] | 65 | #define KEEPALIVE_TIME_BACKOFF_MULTIPLIER 2 |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 66 | |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 67 | #define DEFAULT_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS 300000 /* 5 minutes */ |
| 68 | #define DEFAULT_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS 300000 /* 5 minutes */ |
| 69 | #define DEFAULT_MAX_PINGS_BETWEEN_DATA 0 /* unlimited */ |
| 70 | #define DEFAULT_MAX_PING_STRIKES 2 |
| 71 | |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 72 | static int g_default_client_keepalive_time_ms = |
| 73 | DEFAULT_CLIENT_KEEPALIVE_TIME_MS; |
| 74 | static int g_default_client_keepalive_timeout_ms = |
| 75 | DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS; |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 76 | static int g_default_server_keepalive_time_ms = |
| 77 | DEFAULT_SERVER_KEEPALIVE_TIME_MS; |
| 78 | static int g_default_server_keepalive_timeout_ms = |
| 79 | DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS; |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 80 | static bool g_default_keepalive_permit_without_calls = |
| 81 | DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS; |
| 82 | |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 83 | static int g_default_min_sent_ping_interval_without_data_ms = |
| 84 | DEFAULT_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS; |
| 85 | static int g_default_min_recv_ping_interval_without_data_ms = |
| 86 | DEFAULT_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS; |
| 87 | static int g_default_max_pings_without_data = DEFAULT_MAX_PINGS_BETWEEN_DATA; |
| 88 | static int g_default_max_ping_strikes = DEFAULT_MAX_PING_STRIKES; |
| 89 | |
Craig Tiller | 7098c03 | 2015-05-04 10:18:28 -0700 | [diff] [blame] | 90 | #define MAX_CLIENT_STREAM_ID 0x7fffffffu |
ncteisen | 06bce6e | 2017-07-10 07:58:49 -0700 | [diff] [blame] | 91 | grpc_tracer_flag grpc_http_trace = GRPC_TRACER_INITIALIZER(false, "http"); |
| 92 | grpc_tracer_flag grpc_flowctl_trace = GRPC_TRACER_INITIALIZER(false, "flowctl"); |
Craig Tiller | 5dc3b30 | 2015-06-15 16:06:50 -0700 | [diff] [blame] | 93 | |
ncteisen | ffe7209 | 2017-04-24 15:36:56 -0700 | [diff] [blame] | 94 | #ifndef NDEBUG |
ncteisen | 7712c7c | 2017-07-12 23:11:27 -0700 | [diff] [blame] | 95 | grpc_tracer_flag grpc_trace_chttp2_refcount = |
| 96 | GRPC_TRACER_INITIALIZER(false, "chttp2_refcount"); |
ncteisen | ffe7209 | 2017-04-24 15:36:56 -0700 | [diff] [blame] | 97 | #endif |
| 98 | |
Craig Tiller | 4aa71a1 | 2015-06-15 13:00:55 -0700 | [diff] [blame] | 99 | /* forward declarations of various callbacks that we'll build closures around */ |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 100 | static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *t, |
| 101 | grpc_error *error); |
| 102 | static void write_action(grpc_exec_ctx *exec_ctx, void *t, grpc_error *error); |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 103 | static void write_action_end_locked(grpc_exec_ctx *exec_ctx, void *t, |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 104 | grpc_error *error); |
Craig Tiller | 99f8055 | 2015-06-11 16:26:03 -0700 | [diff] [blame] | 105 | |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 106 | static void read_action_locked(grpc_exec_ctx *exec_ctx, void *t, |
| 107 | grpc_error *error); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 108 | |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 109 | static void complete_fetch_locked(grpc_exec_ctx *exec_ctx, void *gs, |
| 110 | grpc_error *error); |
Craig Tiller | 4aa71a1 | 2015-06-15 13:00:55 -0700 | [diff] [blame] | 111 | /** Set a transport level setting, and push it to our peer */ |
ncteisen | 08cefa0 | 2017-06-20 11:29:26 -0700 | [diff] [blame] | 112 | static void queue_setting_update(grpc_exec_ctx *exec_ctx, |
| 113 | grpc_chttp2_transport *t, |
| 114 | grpc_chttp2_setting_id id, uint32_t value); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 115 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 116 | static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 117 | grpc_chttp2_stream *s, grpc_error *error); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 118 | |
Craig Tiller | 564872d | 2015-06-18 11:21:22 -0700 | [diff] [blame] | 119 | /** Start new streams that have been created if we can */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 120 | static void maybe_start_some_streams(grpc_exec_ctx *exec_ctx, |
| 121 | grpc_chttp2_transport *t); |
Craig Tiller | 564872d | 2015-06-18 11:21:22 -0700 | [diff] [blame] | 122 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 123 | static void connectivity_state_set(grpc_exec_ctx *exec_ctx, |
| 124 | grpc_chttp2_transport *t, |
| 125 | grpc_connectivity_state state, |
| 126 | grpc_error *error, const char *reason); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 127 | |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 128 | static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 129 | void *byte_stream, |
| 130 | grpc_error *error_ignored); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 131 | static void incoming_byte_stream_publish_error( |
| 132 | grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, |
| 133 | grpc_error *error); |
| 134 | static void incoming_byte_stream_unref(grpc_exec_ctx *exec_ctx, |
| 135 | grpc_chttp2_incoming_byte_stream *bs); |
Craig Tiller | abb2e3d | 2015-12-15 06:23:59 -0800 | [diff] [blame] | 136 | |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 137 | static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *t, |
| 138 | grpc_error *error); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 139 | static void destructive_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *t, |
| 140 | grpc_error *error); |
| 141 | |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 142 | static void post_benign_reclaimer(grpc_exec_ctx *exec_ctx, |
| 143 | grpc_chttp2_transport *t); |
| 144 | static void post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, |
| 145 | grpc_chttp2_transport *t); |
| 146 | |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 147 | static void close_transport_locked(grpc_exec_ctx *exec_ctx, |
| 148 | grpc_chttp2_transport *t, grpc_error *error); |
| 149 | static void end_all_the_calls(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 150 | grpc_error *error); |
| 151 | |
Craig Tiller | 57150a4 | 2016-12-29 11:01:18 -0800 | [diff] [blame] | 152 | static void start_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 153 | grpc_error *error); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 154 | static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 155 | grpc_error *error); |
| 156 | |
| 157 | static void cancel_pings(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 158 | grpc_error *error); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 159 | static void send_ping_locked( |
| 160 | grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 161 | grpc_chttp2_ping_type ping_type, grpc_closure *on_initiate, |
| 162 | grpc_closure *on_complete, |
| 163 | grpc_chttp2_initiate_write_reason initiate_write_reason); |
Yuchen Zeng | b4b6a0e | 2017-02-28 22:06:52 -0800 | [diff] [blame] | 164 | static void retry_initiate_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 165 | grpc_error *error); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 166 | |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 167 | /** keepalive-relevant functions */ |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 168 | static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 169 | grpc_error *error); |
| 170 | static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 171 | grpc_error *error); |
| 172 | static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 173 | grpc_error *error); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 174 | static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 175 | grpc_error *error); |
| 176 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 177 | static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, |
| 178 | grpc_error *error); |
| 179 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 180 | /******************************************************************************* |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 181 | * CONSTRUCTION/DESTRUCTION/REFCOUNTING |
| 182 | */ |
| 183 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 184 | static void destruct_transport(grpc_exec_ctx *exec_ctx, |
| 185 | grpc_chttp2_transport *t) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 186 | size_t i; |
| 187 | |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 188 | grpc_endpoint_destroy(exec_ctx, t->ep); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 189 | |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 190 | grpc_slice_buffer_destroy_internal(exec_ctx, &t->qbuf); |
Craig Tiller | 1e6facb | 2015-06-11 22:47:11 -0700 | [diff] [blame] | 191 | |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 192 | grpc_slice_buffer_destroy_internal(exec_ctx, &t->outbuf); |
| 193 | grpc_chttp2_hpack_compressor_destroy(exec_ctx, &t->hpack_compressor); |
Craig Tiller | 1e6facb | 2015-06-11 22:47:11 -0700 | [diff] [blame] | 194 | |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 195 | grpc_slice_buffer_destroy_internal(exec_ctx, &t->read_buffer); |
Craig Tiller | bd1795c | 2016-10-31 15:30:00 -0700 | [diff] [blame] | 196 | grpc_chttp2_hpack_parser_destroy(exec_ctx, &t->hpack_parser); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 197 | grpc_chttp2_goaway_parser_destroy(&t->goaway_parser); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 198 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 199 | for (i = 0; i < STREAM_LIST_COUNT; i++) { |
| 200 | GPR_ASSERT(t->lists[i].head == NULL); |
| 201 | GPR_ASSERT(t->lists[i].tail == NULL); |
| 202 | } |
| 203 | |
Craig Tiller | 796f525 | 2016-08-19 10:44:48 -0700 | [diff] [blame] | 204 | GPR_ASSERT(grpc_chttp2_stream_map_size(&t->stream_map) == 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 205 | |
Craig Tiller | 796f525 | 2016-08-19 10:44:48 -0700 | [diff] [blame] | 206 | grpc_chttp2_stream_map_destroy(&t->stream_map); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 207 | grpc_connectivity_state_destroy(exec_ctx, &t->channel_callback.state_tracker); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 208 | |
Craig Tiller | 3845e55 | 2017-02-09 15:19:28 -0800 | [diff] [blame] | 209 | GRPC_COMBINER_UNREF(exec_ctx, t->combiner, "chttp2_transport"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 210 | |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 211 | cancel_pings(exec_ctx, t, |
| 212 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport destroyed")); |
Craig Tiller | 8ed35ea | 2015-01-30 11:27:43 -0800 | [diff] [blame] | 213 | |
Craig Tiller | df1d3da | 2016-09-01 13:51:42 -0700 | [diff] [blame] | 214 | while (t->write_cb_pool) { |
| 215 | grpc_chttp2_write_cb *next = t->write_cb_pool->next; |
| 216 | gpr_free(t->write_cb_pool); |
| 217 | t->write_cb_pool = next; |
| 218 | } |
| 219 | |
Craig Tiller | 2cf2c5a | 2017-01-30 09:49:31 -0800 | [diff] [blame] | 220 | gpr_free(t->ping_acks); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 221 | gpr_free(t->peer_string); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 222 | gpr_free(t); |
| 223 | } |
| 224 | |
ncteisen | ffe7209 | 2017-04-24 15:36:56 -0700 | [diff] [blame] | 225 | #ifndef NDEBUG |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 226 | void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, |
| 227 | grpc_chttp2_transport *t, const char *reason, |
| 228 | const char *file, int line) { |
ncteisen | ffe7209 | 2017-04-24 15:36:56 -0700 | [diff] [blame] | 229 | if (GRPC_TRACER_ON(grpc_trace_chttp2_refcount)) { |
| 230 | gpr_atm val = gpr_atm_no_barrier_load(&t->refs.count); |
| 231 | gpr_log(GPR_DEBUG, "chttp2:unref:%p %" PRIdPTR "->%" PRIdPTR " %s [%s:%d]", |
| 232 | t, val, val - 1, reason, file, line); |
| 233 | } |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 234 | if (!gpr_unref(&t->refs)) return; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 235 | destruct_transport(exec_ctx, t); |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 236 | } |
| 237 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 238 | void grpc_chttp2_ref_transport(grpc_chttp2_transport *t, const char *reason, |
| 239 | const char *file, int line) { |
ncteisen | ffe7209 | 2017-04-24 15:36:56 -0700 | [diff] [blame] | 240 | if (GRPC_TRACER_ON(grpc_trace_chttp2_refcount)) { |
| 241 | gpr_atm val = gpr_atm_no_barrier_load(&t->refs.count); |
| 242 | gpr_log(GPR_DEBUG, "chttp2: ref:%p %" PRIdPTR "->%" PRIdPTR " %s [%s:%d]", |
| 243 | t, val, val + 1, reason, file, line); |
| 244 | } |
Craig Tiller | 285b882 | 2015-06-17 15:58:13 -0700 | [diff] [blame] | 245 | gpr_ref(&t->refs); |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 246 | } |
| 247 | #else |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 248 | void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, |
| 249 | grpc_chttp2_transport *t) { |
Craig Tiller | 9be83ee | 2015-02-18 14:16:15 -0800 | [diff] [blame] | 250 | if (!gpr_unref(&t->refs)) return; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 251 | destruct_transport(exec_ctx, t); |
Craig Tiller | 9be83ee | 2015-02-18 14:16:15 -0800 | [diff] [blame] | 252 | } |
| 253 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 254 | void grpc_chttp2_ref_transport(grpc_chttp2_transport *t) { gpr_ref(&t->refs); } |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 255 | #endif |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 256 | |
Craig Tiller | a6ca571 | 2017-07-11 14:51:57 -0700 | [diff] [blame] | 257 | static const grpc_transport_vtable *get_vtable(void); |
| 258 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 259 | static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | 4aa71a1 | 2015-06-15 13:00:55 -0700 | [diff] [blame] | 260 | const grpc_channel_args *channel_args, |
Craig Tiller | 13d455e | 2016-05-27 12:06:34 -0700 | [diff] [blame] | 261 | grpc_endpoint *ep, bool is_client) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 262 | size_t i; |
| 263 | int j; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 264 | |
Craig Tiller | 4aa71a1 | 2015-06-15 13:00:55 -0700 | [diff] [blame] | 265 | GPR_ASSERT(strlen(GRPC_CHTTP2_CLIENT_CONNECT_STRING) == |
| 266 | GRPC_CHTTP2_CLIENT_CONNECT_STRLEN); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 267 | |
Craig Tiller | a6ca571 | 2017-07-11 14:51:57 -0700 | [diff] [blame] | 268 | t->base.vtable = get_vtable(); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 269 | t->ep = ep; |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 270 | /* one ref is for destroy */ |
| 271 | gpr_ref_init(&t->refs, 1); |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 272 | t->combiner = grpc_combiner_create(); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 273 | t->peer_string = grpc_endpoint_get_peer(ep); |
Craig Tiller | 606d874 | 2015-06-15 06:58:50 -0700 | [diff] [blame] | 274 | t->endpoint_reading = 1; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 275 | t->next_stream_id = is_client ? 1 : 2; |
| 276 | t->is_client = is_client; |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 277 | t->flow_control.remote_window = DEFAULT_WINDOW; |
| 278 | t->flow_control.announced_window = DEFAULT_WINDOW; |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 279 | t->flow_control.t = t; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 280 | t->deframe_state = is_client ? GRPC_DTS_FH_0 : GRPC_DTS_CLIENT_PREFIX_0; |
| 281 | t->is_first_frame = true; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 282 | grpc_connectivity_state_init( |
| 283 | &t->channel_callback.state_tracker, GRPC_CHANNEL_READY, |
| 284 | is_client ? "client_transport" : "server_transport"); |
Craig Tiller | 42cdf94 | 2015-06-12 07:35:44 -0700 | [diff] [blame] | 285 | |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 286 | grpc_slice_buffer_init(&t->qbuf); |
Craig Tiller | 42cdf94 | 2015-06-12 07:35:44 -0700 | [diff] [blame] | 287 | |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 288 | grpc_slice_buffer_init(&t->outbuf); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 289 | grpc_chttp2_hpack_compressor_init(&t->hpack_compressor); |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 290 | |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 291 | GRPC_CLOSURE_INIT(&t->read_action_locked, read_action_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 292 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 293 | GRPC_CLOSURE_INIT(&t->benign_reclaimer_locked, benign_reclaimer_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 294 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 295 | GRPC_CLOSURE_INIT(&t->destructive_reclaimer_locked, |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 296 | destructive_reclaimer_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 297 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 298 | GRPC_CLOSURE_INIT(&t->retry_initiate_ping_locked, retry_initiate_ping_locked, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 299 | t, grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 300 | GRPC_CLOSURE_INIT(&t->start_bdp_ping_locked, start_bdp_ping_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 301 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 302 | GRPC_CLOSURE_INIT(&t->finish_bdp_ping_locked, finish_bdp_ping_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 303 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 304 | GRPC_CLOSURE_INIT(&t->init_keepalive_ping_locked, init_keepalive_ping_locked, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 305 | t, grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 306 | GRPC_CLOSURE_INIT(&t->start_keepalive_ping_locked, |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 307 | start_keepalive_ping_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 308 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 309 | GRPC_CLOSURE_INIT(&t->finish_keepalive_ping_locked, |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 310 | finish_keepalive_ping_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 311 | grpc_combiner_scheduler(t->combiner)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 312 | GRPC_CLOSURE_INIT(&t->keepalive_watchdog_fired_locked, |
Yuchen Zeng | 380a3be | 2017-02-26 23:37:50 -0800 | [diff] [blame] | 313 | keepalive_watchdog_fired_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 314 | grpc_combiner_scheduler(t->combiner)); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 315 | |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 316 | grpc_bdp_estimator_init(&t->flow_control.bdp_estimator, t->peer_string); |
| 317 | t->flow_control.last_pid_update = gpr_now(GPR_CLOCK_MONOTONIC); |
Craig Tiller | 68c9dbe | 2017-01-03 11:31:34 -0800 | [diff] [blame] | 318 | grpc_pid_controller_init( |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 319 | &t->flow_control.pid_controller, |
Craig Tiller | 68c9dbe | 2017-01-03 11:31:34 -0800 | [diff] [blame] | 320 | (grpc_pid_controller_args){.gain_p = 4, |
| 321 | .gain_i = 8, |
| 322 | .gain_d = 0, |
| 323 | .initial_control_value = log2(DEFAULT_WINDOW), |
| 324 | .min_control_value = -1, |
Craig Tiller | e2894b4 | 2017-02-15 08:12:55 -0800 | [diff] [blame] | 325 | .max_control_value = 25, |
Craig Tiller | 68c9dbe | 2017-01-03 11:31:34 -0800 | [diff] [blame] | 326 | .integral_range = 10}); |
Craig Tiller | 42cdf94 | 2015-06-12 07:35:44 -0700 | [diff] [blame] | 327 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 328 | grpc_chttp2_goaway_parser_init(&t->goaway_parser); |
Craig Tiller | bd1795c | 2016-10-31 15:30:00 -0700 | [diff] [blame] | 329 | grpc_chttp2_hpack_parser_init(exec_ctx, &t->hpack_parser); |
Craig Tiller | 42cdf94 | 2015-06-12 07:35:44 -0700 | [diff] [blame] | 330 | |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 331 | grpc_slice_buffer_init(&t->read_buffer); |
Craig Tiller | b029859 | 2015-08-27 07:38:01 -0700 | [diff] [blame] | 332 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 333 | /* 8 is a random stab in the dark as to a good initial size: it's small enough |
| 334 | that it shouldn't waste memory for infrequently used connections, yet |
| 335 | large enough that the exponential growth should happen nicely when it's |
| 336 | needed. |
| 337 | TODO(ctiller): tune this */ |
Craig Tiller | 796f525 | 2016-08-19 10:44:48 -0700 | [diff] [blame] | 338 | grpc_chttp2_stream_map_init(&t->stream_map, 8); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 339 | |
| 340 | /* copy in initial settings to all setting sets */ |
Craig Tiller | cdf52bc | 2015-06-16 13:00:27 -0700 | [diff] [blame] | 341 | for (i = 0; i < GRPC_CHTTP2_NUM_SETTINGS; i++) { |
Craig Tiller | ab63073 | 2015-06-25 11:20:01 -0700 | [diff] [blame] | 342 | for (j = 0; j < GRPC_NUM_SETTING_SETS; j++) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 343 | t->settings[j][i] = grpc_chttp2_settings_parameters[i].default_value; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 344 | } |
| 345 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 346 | t->dirtied_local_settings = 1; |
ctiller | 493fbcc | 2014-12-07 15:09:10 -0800 | [diff] [blame] | 347 | /* Hack: it's common for implementations to assume 65536 bytes initial send |
| 348 | window -- this should by rights be 0 */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 349 | t->force_send_settings = 1 << GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE; |
| 350 | t->sent_local_settings = 0; |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 351 | t->write_buffer_size = DEFAULT_WINDOW; |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 352 | t->flow_control.enable_bdp_probe = true; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 353 | |
Craig Tiller | c8a8513 | 2016-07-13 10:18:53 -0700 | [diff] [blame] | 354 | if (is_client) { |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 355 | grpc_slice_buffer_add(&t->outbuf, grpc_slice_from_copied_string( |
Craig Tiller | 0f31080 | 2016-10-26 16:25:56 -0700 | [diff] [blame] | 356 | GRPC_CHTTP2_CLIENT_CONNECT_STRING)); |
Craig Tiller | c8a8513 | 2016-07-13 10:18:53 -0700 | [diff] [blame] | 357 | } |
| 358 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 359 | /* configure http2 the way we like it */ |
Craig Tiller | 606d874 | 2015-06-15 06:58:50 -0700 | [diff] [blame] | 360 | if (is_client) { |
ncteisen | 08cefa0 | 2017-06-20 11:29:26 -0700 | [diff] [blame] | 361 | queue_setting_update(exec_ctx, t, GRPC_CHTTP2_SETTINGS_ENABLE_PUSH, 0); |
| 362 | queue_setting_update(exec_ctx, t, |
| 363 | GRPC_CHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 364 | } |
ncteisen | 08cefa0 | 2017-06-20 11:29:26 -0700 | [diff] [blame] | 365 | queue_setting_update(exec_ctx, t, GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE, |
| 366 | DEFAULT_WINDOW); |
| 367 | queue_setting_update(exec_ctx, t, GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE, |
| 368 | DEFAULT_MAX_HEADER_LIST_SIZE); |
| 369 | queue_setting_update(exec_ctx, t, |
| 370 | GRPC_CHTTP2_SETTINGS_GRPC_ALLOW_TRUE_BINARY_METADATA, 1); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 371 | |
Craig Tiller | 1b36a7d | 2017-01-03 16:19:16 -0800 | [diff] [blame] | 372 | t->ping_policy = (grpc_chttp2_repeated_ping_policy){ |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 373 | .max_pings_without_data = g_default_max_pings_without_data, |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 374 | .min_sent_ping_interval_without_data = gpr_time_from_millis( |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 375 | g_default_min_sent_ping_interval_without_data_ms, GPR_TIMESPAN), |
| 376 | .max_ping_strikes = g_default_max_ping_strikes, |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 377 | .min_recv_ping_interval_without_data = gpr_time_from_millis( |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 378 | g_default_min_recv_ping_interval_without_data_ms, GPR_TIMESPAN), |
Craig Tiller | 1b36a7d | 2017-01-03 16:19:16 -0800 | [diff] [blame] | 379 | }; |
| 380 | |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 381 | /* Keepalive setting */ |
| 382 | if (t->is_client) { |
| 383 | t->keepalive_time = |
| 384 | g_default_client_keepalive_time_ms == INT_MAX |
| 385 | ? gpr_inf_future(GPR_TIMESPAN) |
| 386 | : gpr_time_from_millis(g_default_client_keepalive_time_ms, |
| 387 | GPR_TIMESPAN); |
| 388 | t->keepalive_timeout = |
| 389 | g_default_client_keepalive_timeout_ms == INT_MAX |
| 390 | ? gpr_inf_future(GPR_TIMESPAN) |
| 391 | : gpr_time_from_millis(g_default_client_keepalive_timeout_ms, |
| 392 | GPR_TIMESPAN); |
| 393 | } else { |
| 394 | t->keepalive_time = |
| 395 | g_default_server_keepalive_time_ms == INT_MAX |
| 396 | ? gpr_inf_future(GPR_TIMESPAN) |
| 397 | : gpr_time_from_millis(g_default_server_keepalive_time_ms, |
| 398 | GPR_TIMESPAN); |
| 399 | t->keepalive_timeout = |
| 400 | g_default_server_keepalive_timeout_ms == INT_MAX |
| 401 | ? gpr_inf_future(GPR_TIMESPAN) |
| 402 | : gpr_time_from_millis(g_default_server_keepalive_timeout_ms, |
| 403 | GPR_TIMESPAN); |
| 404 | } |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 405 | t->keepalive_permit_without_calls = g_default_keepalive_permit_without_calls; |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 406 | |
Craig Tiller | f1633a9 | 2017-06-19 10:01:52 -0700 | [diff] [blame] | 407 | t->opt_target = GRPC_CHTTP2_OPTIMIZE_FOR_LATENCY; |
| 408 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 409 | if (channel_args) { |
| 410 | for (i = 0; i < channel_args->num_args; i++) { |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 411 | if (0 == strcmp(channel_args->args[i].key, |
| 412 | GRPC_ARG_HTTP2_INITIAL_SEQUENCE_NUMBER)) { |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 413 | const grpc_integer_options options = {-1, 0, INT_MAX}; |
Mark D. Roth | c09e21f | 2016-08-26 13:34:53 -0700 | [diff] [blame] | 414 | const int value = |
| 415 | grpc_channel_arg_get_integer(&channel_args->args[i], options); |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 416 | if (value >= 0) { |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 417 | if ((t->next_stream_id & 1) != (value & 1)) { |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 418 | gpr_log(GPR_ERROR, "%s: low bit must be %d on %s", |
| 419 | GRPC_ARG_HTTP2_INITIAL_SEQUENCE_NUMBER, |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 420 | t->next_stream_id & 1, is_client ? "client" : "server"); |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 421 | } else { |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 422 | t->next_stream_id = (uint32_t)value; |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 423 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 424 | } |
Craig Tiller | 3c53bb2 | 2015-11-10 14:24:36 +0000 | [diff] [blame] | 425 | } else if (0 == strcmp(channel_args->args[i].key, |
Craig Tiller | 3c53bb2 | 2015-11-10 14:24:36 +0000 | [diff] [blame] | 426 | GRPC_ARG_HTTP2_HPACK_TABLE_SIZE_ENCODER)) { |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 427 | const grpc_integer_options options = {-1, 0, INT_MAX}; |
Mark D. Roth | c09e21f | 2016-08-26 13:34:53 -0700 | [diff] [blame] | 428 | const int value = |
| 429 | grpc_channel_arg_get_integer(&channel_args->args[i], options); |
Mark D. Roth | c3c6faf | 2016-08-26 09:20:49 -0700 | [diff] [blame] | 430 | if (value >= 0) { |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 431 | grpc_chttp2_hpack_compressor_set_max_usable_size(&t->hpack_compressor, |
| 432 | (uint32_t)value); |
Craig Tiller | 8802558 | 2015-05-04 09:41:10 -0700 | [diff] [blame] | 433 | } |
Craig Tiller | 1b36a7d | 2017-01-03 16:19:16 -0800 | [diff] [blame] | 434 | } else if (0 == strcmp(channel_args->args[i].key, |
| 435 | GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA)) { |
| 436 | t->ping_policy.max_pings_without_data = grpc_channel_arg_get_integer( |
| 437 | &channel_args->args[i], |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 438 | (grpc_integer_options){g_default_max_pings_without_data, 0, |
| 439 | INT_MAX}); |
Craig Tiller | 1b36a7d | 2017-01-03 16:19:16 -0800 | [diff] [blame] | 440 | } else if (0 == strcmp(channel_args->args[i].key, |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 441 | GRPC_ARG_HTTP2_MAX_PING_STRIKES)) { |
| 442 | t->ping_policy.max_ping_strikes = grpc_channel_arg_get_integer( |
| 443 | &channel_args->args[i], |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 444 | (grpc_integer_options){g_default_max_ping_strikes, 0, INT_MAX}); |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 445 | } else if (0 == |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 446 | strcmp( |
| 447 | channel_args->args[i].key, |
| 448 | GRPC_ARG_HTTP2_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS)) { |
| 449 | t->ping_policy.min_sent_ping_interval_without_data = |
| 450 | gpr_time_from_millis( |
| 451 | grpc_channel_arg_get_integer( |
| 452 | &channel_args->args[i], |
| 453 | (grpc_integer_options){ |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 454 | g_default_min_sent_ping_interval_without_data_ms, 0, |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 455 | INT_MAX}), |
| 456 | GPR_TIMESPAN); |
| 457 | } else if (0 == |
| 458 | strcmp( |
| 459 | channel_args->args[i].key, |
| 460 | GRPC_ARG_HTTP2_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS)) { |
| 461 | t->ping_policy.min_recv_ping_interval_without_data = |
| 462 | gpr_time_from_millis( |
| 463 | grpc_channel_arg_get_integer( |
| 464 | &channel_args->args[i], |
| 465 | (grpc_integer_options){ |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 466 | g_default_min_recv_ping_interval_without_data_ms, 0, |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 467 | INT_MAX}), |
| 468 | GPR_TIMESPAN); |
Craig Tiller | a66243d | 2017-01-17 12:23:05 -0800 | [diff] [blame] | 469 | } else if (0 == strcmp(channel_args->args[i].key, |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 470 | GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE)) { |
| 471 | t->write_buffer_size = (uint32_t)grpc_channel_arg_get_integer( |
| 472 | &channel_args->args[i], |
Craig Tiller | 0a5a318 | 2017-01-13 16:54:03 -0800 | [diff] [blame] | 473 | (grpc_integer_options){0, 0, MAX_WRITE_BUFFER_SIZE}); |
Craig Tiller | 78e6451 | 2017-02-07 07:03:26 -0800 | [diff] [blame] | 474 | } else if (0 == |
| 475 | strcmp(channel_args->args[i].key, GRPC_ARG_HTTP2_BDP_PROBE)) { |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 476 | t->flow_control.enable_bdp_probe = grpc_channel_arg_get_integer( |
Craig Tiller | 78e6451 | 2017-02-07 07:03:26 -0800 | [diff] [blame] | 477 | &channel_args->args[i], (grpc_integer_options){1, 0, 1}); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 478 | } else if (0 == strcmp(channel_args->args[i].key, |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 479 | GRPC_ARG_KEEPALIVE_TIME_MS)) { |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 480 | const int value = grpc_channel_arg_get_integer( |
| 481 | &channel_args->args[i], |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 482 | (grpc_integer_options){t->is_client |
| 483 | ? g_default_client_keepalive_time_ms |
| 484 | : g_default_server_keepalive_time_ms, |
| 485 | 1, INT_MAX}); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 486 | t->keepalive_time = value == INT_MAX |
| 487 | ? gpr_inf_future(GPR_TIMESPAN) |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 488 | : gpr_time_from_millis(value, GPR_TIMESPAN); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 489 | } else if (0 == strcmp(channel_args->args[i].key, |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 490 | GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) { |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 491 | const int value = grpc_channel_arg_get_integer( |
| 492 | &channel_args->args[i], |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 493 | (grpc_integer_options){t->is_client |
| 494 | ? g_default_client_keepalive_timeout_ms |
| 495 | : g_default_server_keepalive_timeout_ms, |
| 496 | 0, INT_MAX}); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 497 | t->keepalive_timeout = value == INT_MAX |
| 498 | ? gpr_inf_future(GPR_TIMESPAN) |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 499 | : gpr_time_from_millis(value, GPR_TIMESPAN); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 500 | } else if (0 == strcmp(channel_args->args[i].key, |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 501 | GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS)) { |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 502 | t->keepalive_permit_without_calls = |
| 503 | (uint32_t)grpc_channel_arg_get_integer( |
Yuchen Zeng | e0b1e46 | 2017-02-27 11:03:07 -0800 | [diff] [blame] | 504 | &channel_args->args[i], (grpc_integer_options){0, 0, 1}); |
Craig Tiller | f1633a9 | 2017-06-19 10:01:52 -0700 | [diff] [blame] | 505 | } else if (0 == strcmp(channel_args->args[i].key, |
| 506 | GRPC_ARG_OPTIMIZATION_TARGET)) { |
| 507 | if (channel_args->args[i].type != GRPC_ARG_STRING) { |
| 508 | gpr_log(GPR_ERROR, "%s should be a string", |
| 509 | GRPC_ARG_OPTIMIZATION_TARGET); |
| 510 | } else if (0 == strcmp(channel_args->args[i].value.string, "blend")) { |
| 511 | t->opt_target = GRPC_CHTTP2_OPTIMIZE_FOR_LATENCY; |
| 512 | } else if (0 == strcmp(channel_args->args[i].value.string, "latency")) { |
| 513 | t->opt_target = GRPC_CHTTP2_OPTIMIZE_FOR_LATENCY; |
| 514 | } else if (0 == |
| 515 | strcmp(channel_args->args[i].value.string, "throughput")) { |
| 516 | t->opt_target = GRPC_CHTTP2_OPTIMIZE_FOR_THROUGHPUT; |
| 517 | } else { |
| 518 | gpr_log(GPR_ERROR, "%s value '%s' unknown, assuming 'blend'", |
| 519 | GRPC_ARG_OPTIMIZATION_TARGET, |
| 520 | channel_args->args[i].value.string); |
| 521 | } |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 522 | } else { |
| 523 | static const struct { |
| 524 | const char *channel_arg_name; |
| 525 | grpc_chttp2_setting_id setting_id; |
| 526 | grpc_integer_options integer_options; |
Craig Tiller | 1808bbd | 2016-09-20 11:29:34 -0700 | [diff] [blame] | 527 | bool availability[2] /* server, client */; |
Craig Tiller | 87c7979 | 2017-04-03 17:05:12 -0700 | [diff] [blame] | 528 | } settings_map[] = { |
| 529 | {GRPC_ARG_MAX_CONCURRENT_STREAMS, |
| 530 | GRPC_CHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, |
| 531 | {-1, 0, INT32_MAX}, |
| 532 | {true, false}}, |
| 533 | {GRPC_ARG_HTTP2_HPACK_TABLE_SIZE_DECODER, |
| 534 | GRPC_CHTTP2_SETTINGS_HEADER_TABLE_SIZE, |
| 535 | {-1, 0, INT32_MAX}, |
| 536 | {true, true}}, |
| 537 | {GRPC_ARG_MAX_METADATA_SIZE, |
| 538 | GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE, |
| 539 | {-1, 0, INT32_MAX}, |
| 540 | {true, true}}, |
| 541 | {GRPC_ARG_HTTP2_MAX_FRAME_SIZE, |
| 542 | GRPC_CHTTP2_SETTINGS_MAX_FRAME_SIZE, |
| 543 | {-1, 16384, 16777215}, |
| 544 | {true, true}}, |
| 545 | {GRPC_ARG_HTTP2_ENABLE_TRUE_BINARY, |
| 546 | GRPC_CHTTP2_SETTINGS_GRPC_ALLOW_TRUE_BINARY_METADATA, |
| 547 | {1, 0, 1}, |
| 548 | {true, true}}, |
| 549 | {GRPC_ARG_HTTP2_STREAM_LOOKAHEAD_BYTES, |
| 550 | GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE, |
| 551 | {-1, 5, INT32_MAX}, |
| 552 | {true, true}}}; |
Craig Tiller | 1808bbd | 2016-09-20 11:29:34 -0700 | [diff] [blame] | 553 | for (j = 0; j < (int)GPR_ARRAY_SIZE(settings_map); j++) { |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 554 | if (0 == strcmp(channel_args->args[i].key, |
| 555 | settings_map[j].channel_arg_name)) { |
| 556 | if (!settings_map[j].availability[is_client]) { |
| 557 | gpr_log(GPR_DEBUG, "%s is not available on %s", |
| 558 | settings_map[j].channel_arg_name, |
| 559 | is_client ? "clients" : "servers"); |
| 560 | } else { |
| 561 | int value = grpc_channel_arg_get_integer( |
| 562 | &channel_args->args[i], settings_map[j].integer_options); |
| 563 | if (value >= 0) { |
ncteisen | 08cefa0 | 2017-06-20 11:29:26 -0700 | [diff] [blame] | 564 | queue_setting_update(exec_ctx, t, settings_map[j].setting_id, |
| 565 | (uint32_t)value); |
Craig Tiller | 1edc77c | 2016-09-20 11:02:51 -0700 | [diff] [blame] | 566 | } |
| 567 | } |
| 568 | break; |
| 569 | } |
Craig Tiller | 24096ce | 2016-08-24 15:54:29 -0700 | [diff] [blame] | 570 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 571 | } |
| 572 | } |
| 573 | } |
Craig Tiller | 198036f | 2016-07-13 16:25:13 -0700 | [diff] [blame] | 574 | |
Yuchen Zeng | 6a8c0ac | 2017-05-14 23:18:05 -0700 | [diff] [blame] | 575 | /* No pings allowed before receiving a header or data frame. */ |
| 576 | t->ping_state.pings_before_data_required = 0; |
Yuchen Zeng | cbcdb40 | 2017-03-01 01:42:18 -0800 | [diff] [blame] | 577 | t->ping_state.is_delayed_ping_timer_set = false; |
Craig Tiller | fa05795 | 2017-01-30 10:16:02 -0800 | [diff] [blame] | 578 | |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 579 | t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); |
| 580 | t->ping_recv_state.ping_strikes = 0; |
| 581 | |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 582 | /* Start keepalive pings */ |
| 583 | if (gpr_time_cmp(t->keepalive_time, gpr_inf_future(GPR_TIMESPAN)) != 0) { |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 584 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING; |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 585 | GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping"); |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 586 | grpc_timer_init( |
| 587 | exec_ctx, &t->keepalive_ping_timer, |
| 588 | gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time), |
Yuchen Zeng | 380a3be | 2017-02-26 23:37:50 -0800 | [diff] [blame] | 589 | &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC)); |
Yuchen Zeng | 6cb260a | 2017-04-05 18:44:36 -0700 | [diff] [blame] | 590 | } else { |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 591 | /* Use GRPC_CHTTP2_KEEPALIVE_STATE_DISABLED to indicate there are no |
| 592 | inflight keeaplive timers */ |
| 593 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DISABLED; |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 594 | } |
| 595 | |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 596 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 597 | GRPC_CHTTP2_INITIATE_WRITE_INITIAL_WRITE); |
Craig Tiller | dd339ea | 2016-09-27 13:21:31 -0700 | [diff] [blame] | 598 | post_benign_reclaimer(exec_ctx, t); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 599 | } |
| 600 | |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 601 | static void destroy_transport_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 602 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 603 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Craig Tiller | 1fe7b9d | 2015-02-17 11:57:02 -0800 | [diff] [blame] | 604 | t->destroying = 1; |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 605 | close_transport_locked( |
| 606 | exec_ctx, t, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 607 | grpc_error_set_int( |
| 608 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport destroyed"), |
| 609 | GRPC_ERROR_INT_OCCURRED_DURING_WRITE, t->write_state)); |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 610 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "destroy"); |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 611 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 612 | |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 613 | static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) { |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 614 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 615 | GRPC_CLOSURE_SCHED(exec_ctx, |
| 616 | GRPC_CLOSURE_CREATE(destroy_transport_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 617 | grpc_combiner_scheduler(t->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 618 | GRPC_ERROR_NONE); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 619 | } |
| 620 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 621 | static void close_transport_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | d76eb8a | 2016-03-22 08:49:28 -0700 | [diff] [blame] | 622 | grpc_chttp2_transport *t, |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 623 | grpc_error *error) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 624 | if (!t->closed) { |
murgatroid99 | d0cda5c | 2017-03-07 18:04:52 -0800 | [diff] [blame] | 625 | if (!grpc_error_has_clear_grpc_status(error)) { |
| 626 | error = grpc_error_set_int(error, GRPC_ERROR_INT_GRPC_STATUS, |
| 627 | GRPC_STATUS_UNAVAILABLE); |
| 628 | } |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 629 | if (t->write_state != GRPC_CHTTP2_WRITE_STATE_IDLE) { |
| 630 | if (t->close_transport_on_writes_finished == NULL) { |
| 631 | t->close_transport_on_writes_finished = |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 632 | GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 633 | "Delayed close due to in-progress write"); |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 634 | } |
| 635 | t->close_transport_on_writes_finished = |
| 636 | grpc_error_add_child(t->close_transport_on_writes_finished, error); |
| 637 | return; |
| 638 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 639 | t->closed = 1; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 640 | connectivity_state_set(exec_ctx, t, GRPC_CHANNEL_SHUTDOWN, |
Craig Tiller | 71d28ad | 2016-05-07 21:48:44 -0700 | [diff] [blame] | 641 | GRPC_ERROR_REF(error), "close_transport"); |
Craig Tiller | cda759d | 2017-01-27 11:37:37 -0800 | [diff] [blame] | 642 | grpc_endpoint_shutdown(exec_ctx, t->ep, GRPC_ERROR_REF(error)); |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 643 | if (t->ping_state.is_delayed_ping_timer_set) { |
| 644 | grpc_timer_cancel(exec_ctx, &t->ping_state.delayed_ping_timer); |
| 645 | } |
Yuchen Zeng | 6cb260a | 2017-04-05 18:44:36 -0700 | [diff] [blame] | 646 | switch (t->keepalive_state) { |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 647 | case GRPC_CHTTP2_KEEPALIVE_STATE_WAITING: |
Yuchen Zeng | 6cb260a | 2017-04-05 18:44:36 -0700 | [diff] [blame] | 648 | grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer); |
| 649 | break; |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 650 | case GRPC_CHTTP2_KEEPALIVE_STATE_PINGING: |
Yuchen Zeng | 6cb260a | 2017-04-05 18:44:36 -0700 | [diff] [blame] | 651 | grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer); |
| 652 | grpc_timer_cancel(exec_ctx, &t->keepalive_watchdog_timer); |
| 653 | break; |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 654 | case GRPC_CHTTP2_KEEPALIVE_STATE_DYING: |
| 655 | case GRPC_CHTTP2_KEEPALIVE_STATE_DISABLED: |
| 656 | /* keepalive timers are not set in these two states */ |
Yuchen Zeng | 6cb260a | 2017-04-05 18:44:36 -0700 | [diff] [blame] | 657 | break; |
Yuchen Zeng | 990d9fe | 2017-02-26 16:54:18 -0800 | [diff] [blame] | 658 | } |
Craig Tiller | ad23ae1 | 2016-03-04 10:50:56 -0800 | [diff] [blame] | 659 | |
| 660 | /* flush writable stream list to avoid dangling references */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 661 | grpc_chttp2_stream *s; |
| 662 | while (grpc_chttp2_list_pop_writable_stream(t, &s)) { |
Craig Tiller | fd4c647 | 2016-09-06 20:03:06 -0700 | [diff] [blame] | 663 | GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "chttp2_writing:close"); |
Craig Tiller | ad23ae1 | 2016-03-04 10:50:56 -0800 | [diff] [blame] | 664 | } |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 665 | end_all_the_calls(exec_ctx, t, GRPC_ERROR_REF(error)); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 666 | cancel_pings(exec_ctx, t, GRPC_ERROR_REF(error)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 667 | } |
Craig Tiller | 71d28ad | 2016-05-07 21:48:44 -0700 | [diff] [blame] | 668 | GRPC_ERROR_UNREF(error); |
Craig Tiller | ec3aa89 | 2015-05-29 17:22:17 -0700 | [diff] [blame] | 669 | } |
| 670 | |
ncteisen | 9c43fc0 | 2017-06-08 16:06:23 -0700 | [diff] [blame] | 671 | #ifndef NDEBUG |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 672 | void grpc_chttp2_stream_ref(grpc_chttp2_stream *s, const char *reason) { |
| 673 | grpc_stream_ref(s->refcount, reason); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 674 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 675 | void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s, |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 676 | const char *reason) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 677 | grpc_stream_unref(exec_ctx, s->refcount, reason); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 678 | } |
| 679 | #else |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 680 | void grpc_chttp2_stream_ref(grpc_chttp2_stream *s) { |
| 681 | grpc_stream_ref(s->refcount); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 682 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 683 | void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s) { |
| 684 | grpc_stream_unref(exec_ctx, s->refcount); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 685 | } |
| 686 | #endif |
| 687 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 688 | static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 689 | grpc_stream *gs, grpc_stream_refcount *refcount, |
Craig Tiller | 7d2c398 | 2017-03-13 12:58:29 -0700 | [diff] [blame] | 690 | const void *server_data, gpr_arena *arena) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 691 | GPR_TIMER_BEGIN("init_stream", 0); |
Craig Tiller | b084d90 | 2015-06-12 07:50:02 -0700 | [diff] [blame] | 692 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
| 693 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 694 | |
Craig Tiller | 9dc01dd | 2016-07-11 16:26:34 -0700 | [diff] [blame] | 695 | s->t = t; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 696 | s->refcount = refcount; |
Craig Tiller | 414217e | 2016-03-25 13:31:06 -0700 | [diff] [blame] | 697 | /* We reserve one 'active stream' that's dropped when the stream is |
| 698 | read-closed. The others are for incoming_byte_streams that are actively |
| 699 | reading */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 700 | GRPC_CHTTP2_STREAM_REF(s, "chttp2"); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 701 | |
Craig Tiller | 7d2c398 | 2017-03-13 12:58:29 -0700 | [diff] [blame] | 702 | grpc_chttp2_incoming_metadata_buffer_init(&s->metadata_buffer[0], arena); |
| 703 | grpc_chttp2_incoming_metadata_buffer_init(&s->metadata_buffer[1], arena); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 704 | grpc_chttp2_data_parser_init(&s->data_parser); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 705 | grpc_slice_buffer_init(&s->flow_controlled_buffer); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 706 | s->deadline = gpr_inf_future(GPR_CLOCK_MONOTONIC); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 707 | GRPC_CLOSURE_INIT(&s->complete_fetch_locked, complete_fetch_locked, s, |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 708 | grpc_schedule_on_exec_ctx); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 709 | grpc_slice_buffer_init(&s->unprocessed_incoming_frames_buffer); |
| 710 | grpc_slice_buffer_init(&s->frame_storage); |
| 711 | s->pending_byte_stream = false; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 712 | GRPC_CLOSURE_INIT(&s->reset_byte_stream, reset_byte_stream, s, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 713 | grpc_combiner_scheduler(t->combiner)); |
Craig Tiller | 606d874 | 2015-06-15 06:58:50 -0700 | [diff] [blame] | 714 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 715 | GRPC_CHTTP2_REF_TRANSPORT(t, "stream"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 716 | |
Craig Tiller | 606d874 | 2015-06-15 06:58:50 -0700 | [diff] [blame] | 717 | if (server_data) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 718 | s->id = (uint32_t)(uintptr_t)server_data; |
Craig Tiller | 606d874 | 2015-06-15 06:58:50 -0700 | [diff] [blame] | 719 | *t->accepting_stream = s; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 720 | grpc_chttp2_stream_map_add(&t->stream_map, s->id, s); |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 721 | post_destructive_reclaimer(exec_ctx, t); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 722 | } |
| 723 | |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 724 | s->flow_control.s = s; |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 725 | GPR_TIMER_END("init_stream", 0); |
| 726 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 727 | return 0; |
| 728 | } |
| 729 | |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 730 | static void destroy_stream_locked(grpc_exec_ctx *exec_ctx, void *sp, |
| 731 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 732 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)sp; |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 733 | grpc_chttp2_transport *t = s->t; |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 734 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 735 | GPR_TIMER_BEGIN("destroy_stream", 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 736 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 737 | GPR_ASSERT((s->write_closed && s->read_closed) || s->id == 0); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 738 | if (s->id != 0) { |
| 739 | GPR_ASSERT(grpc_chttp2_stream_map_find(&t->stream_map, s->id) == NULL); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 740 | } |
| 741 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 742 | grpc_slice_buffer_destroy_internal(exec_ctx, |
| 743 | &s->unprocessed_incoming_frames_buffer); |
| 744 | grpc_slice_buffer_destroy_internal(exec_ctx, &s->frame_storage); |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 745 | if (s->compressed_data_buffer) { |
| 746 | grpc_slice_buffer_destroy_internal(exec_ctx, s->compressed_data_buffer); |
| 747 | gpr_free(s->compressed_data_buffer); |
| 748 | } |
| 749 | if (s->decompressed_data_buffer) { |
| 750 | grpc_slice_buffer_destroy_internal(exec_ctx, s->decompressed_data_buffer); |
| 751 | gpr_free(s->decompressed_data_buffer); |
| 752 | } |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 753 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 754 | grpc_chttp2_list_remove_stalled_by_transport(t, s); |
Craig Tiller | 1f67599 | 2016-10-19 14:43:06 -0700 | [diff] [blame] | 755 | grpc_chttp2_list_remove_stalled_by_stream(t, s); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 756 | |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 757 | for (int i = 0; i < STREAM_LIST_COUNT; i++) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 758 | if (s->included[i]) { |
| 759 | gpr_log(GPR_ERROR, "%s stream %d still included in list %d", |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 760 | t->is_client ? "client" : "server", s->id, i); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 761 | abort(); |
Craig Tiller | 05cc0c4 | 2015-07-23 16:01:27 -0700 | [diff] [blame] | 762 | } |
Craig Tiller | c3fdaf9 | 2015-06-18 10:16:52 -0700 | [diff] [blame] | 763 | } |
| 764 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 765 | GPR_ASSERT(s->send_initial_metadata_finished == NULL); |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 766 | GPR_ASSERT(s->fetching_send_message == NULL); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 767 | GPR_ASSERT(s->send_trailing_metadata_finished == NULL); |
| 768 | GPR_ASSERT(s->recv_initial_metadata_ready == NULL); |
| 769 | GPR_ASSERT(s->recv_message_ready == NULL); |
| 770 | GPR_ASSERT(s->recv_trailing_metadata_finished == NULL); |
| 771 | grpc_chttp2_data_parser_destroy(exec_ctx, &s->data_parser); |
Craig Tiller | bd1795c | 2016-10-31 15:30:00 -0700 | [diff] [blame] | 772 | grpc_chttp2_incoming_metadata_buffer_destroy(exec_ctx, |
| 773 | &s->metadata_buffer[0]); |
| 774 | grpc_chttp2_incoming_metadata_buffer_destroy(exec_ctx, |
| 775 | &s->metadata_buffer[1]); |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 776 | grpc_slice_buffer_destroy_internal(exec_ctx, &s->flow_controlled_buffer); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 777 | GRPC_ERROR_UNREF(s->read_closed_error); |
| 778 | GRPC_ERROR_UNREF(s->write_closed_error); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 779 | GRPC_ERROR_UNREF(s->byte_stream_error); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 780 | |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 781 | grpc_chttp2_flowctl_destroy_stream(&t->flow_control, &s->flow_control); |
Craig Tiller | fd2cd78 | 2017-02-15 06:53:51 -0800 | [diff] [blame] | 782 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 783 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "stream"); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 784 | |
| 785 | GPR_TIMER_END("destroy_stream", 0); |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 786 | |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 787 | GRPC_CLOSURE_SCHED(exec_ctx, s->destroy_stream_arg, GRPC_ERROR_NONE); |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 788 | } |
| 789 | |
| 790 | static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
Craig Tiller | d426cac | 2017-03-13 12:30:45 -0700 | [diff] [blame] | 791 | grpc_stream *gs, |
| 792 | grpc_closure *then_schedule_closure) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 793 | GPR_TIMER_BEGIN("destroy_stream", 0); |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 794 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
| 795 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; |
| 796 | |
Muxi Yan | e89c83a | 2017-07-12 11:49:27 -0700 | [diff] [blame] | 797 | if (s->stream_compression_ctx != NULL) { |
| 798 | grpc_stream_compression_context_destroy(s->stream_compression_ctx); |
| 799 | s->stream_compression_ctx = NULL; |
| 800 | } |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 801 | if (s->stream_decompression_ctx != NULL) { |
| 802 | grpc_stream_compression_context_destroy(s->stream_decompression_ctx); |
| 803 | s->stream_decompression_ctx = NULL; |
| 804 | } |
| 805 | |
Craig Tiller | d426cac | 2017-03-13 12:30:45 -0700 | [diff] [blame] | 806 | s->destroy_stream_arg = then_schedule_closure; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 807 | GRPC_CLOSURE_SCHED( |
| 808 | exec_ctx, GRPC_CLOSURE_INIT(&s->destroy_stream, destroy_stream_locked, s, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 809 | grpc_combiner_scheduler(t->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 810 | GRPC_ERROR_NONE); |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 811 | GPR_TIMER_END("destroy_stream", 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 812 | } |
| 813 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 814 | grpc_chttp2_stream *grpc_chttp2_parsing_lookup_stream(grpc_chttp2_transport *t, |
| 815 | uint32_t id) { |
Craig Tiller | a6ca571 | 2017-07-11 14:51:57 -0700 | [diff] [blame] | 816 | return (grpc_chttp2_stream *)grpc_chttp2_stream_map_find(&t->stream_map, id); |
Craig Tiller | cfb5db9 | 2015-06-15 17:14:41 -0700 | [diff] [blame] | 817 | } |
| 818 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 819 | grpc_chttp2_stream *grpc_chttp2_parsing_accept_stream(grpc_exec_ctx *exec_ctx, |
| 820 | grpc_chttp2_transport *t, |
| 821 | uint32_t id) { |
Craig Tiller | 7f0bf53 | 2016-09-29 10:19:28 -0700 | [diff] [blame] | 822 | if (t->channel_callback.accept_stream == NULL) { |
| 823 | return NULL; |
| 824 | } |
Craig Tiller | 1937b06 | 2015-06-16 08:47:38 -0700 | [diff] [blame] | 825 | grpc_chttp2_stream *accepting; |
Craig Tiller | 1937b06 | 2015-06-16 08:47:38 -0700 | [diff] [blame] | 826 | GPR_ASSERT(t->accepting_stream == NULL); |
| 827 | t->accepting_stream = &accepting; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 828 | t->channel_callback.accept_stream(exec_ctx, |
| 829 | t->channel_callback.accept_stream_user_data, |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 830 | &t->base, (void *)(uintptr_t)id); |
Craig Tiller | 1937b06 | 2015-06-16 08:47:38 -0700 | [diff] [blame] | 831 | t->accepting_stream = NULL; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 832 | return accepting; |
Craig Tiller | 1937b06 | 2015-06-16 08:47:38 -0700 | [diff] [blame] | 833 | } |
| 834 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 835 | /******************************************************************************* |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 836 | * OUTPUT PROCESSING |
| 837 | */ |
| 838 | |
Craig Tiller | 2c4043b | 2016-09-05 14:50:16 -0700 | [diff] [blame] | 839 | static const char *write_state_name(grpc_chttp2_write_state st) { |
| 840 | switch (st) { |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 841 | case GRPC_CHTTP2_WRITE_STATE_IDLE: |
| 842 | return "IDLE"; |
| 843 | case GRPC_CHTTP2_WRITE_STATE_WRITING: |
| 844 | return "WRITING"; |
Craig Tiller | 09b05fd | 2016-09-07 13:02:05 -0700 | [diff] [blame] | 845 | case GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE: |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 846 | return "WRITING+MORE"; |
Craig Tiller | 2c4043b | 2016-09-05 14:50:16 -0700 | [diff] [blame] | 847 | } |
| 848 | GPR_UNREACHABLE_CODE(return "UNKNOWN"); |
| 849 | } |
| 850 | |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 851 | static void set_write_state(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | fc2636d | 2016-09-12 09:57:07 -0700 | [diff] [blame] | 852 | grpc_chttp2_write_state st, const char *reason) { |
| 853 | GRPC_CHTTP2_IF_TRACING(gpr_log(GPR_DEBUG, "W:%p %s state %s -> %s [%s]", t, |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 854 | t->is_client ? "CLIENT" : "SERVER", |
| 855 | write_state_name(t->write_state), |
Craig Tiller | fc2636d | 2016-09-12 09:57:07 -0700 | [diff] [blame] | 856 | write_state_name(st), reason)); |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 857 | t->write_state = st; |
Craig Tiller | 9099350 | 2016-12-05 08:32:53 -0800 | [diff] [blame] | 858 | if (st == GRPC_CHTTP2_WRITE_STATE_IDLE) { |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 859 | GRPC_CLOSURE_LIST_SCHED(exec_ctx, &t->run_after_write); |
Craig Tiller | 9099350 | 2016-12-05 08:32:53 -0800 | [diff] [blame] | 860 | if (t->close_transport_on_writes_finished != NULL) { |
| 861 | grpc_error *err = t->close_transport_on_writes_finished; |
| 862 | t->close_transport_on_writes_finished = NULL; |
| 863 | close_transport_locked(exec_ctx, t, err); |
| 864 | } |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 865 | } |
Craig Tiller | 2c4043b | 2016-09-05 14:50:16 -0700 | [diff] [blame] | 866 | } |
| 867 | |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 868 | static void inc_initiate_write_reason( |
| 869 | grpc_exec_ctx *exec_ctx, grpc_chttp2_initiate_write_reason reason) { |
| 870 | switch (reason) { |
| 871 | case GRPC_CHTTP2_INITIATE_WRITE_INITIAL_WRITE: |
| 872 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_INITIAL_WRITE(exec_ctx); |
| 873 | break; |
| 874 | case GRPC_CHTTP2_INITIATE_WRITE_START_NEW_STREAM: |
| 875 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_START_NEW_STREAM(exec_ctx); |
| 876 | break; |
| 877 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_MESSAGE: |
| 878 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_SEND_MESSAGE(exec_ctx); |
| 879 | break; |
| 880 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_INITIAL_METADATA: |
| 881 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_SEND_INITIAL_METADATA( |
| 882 | exec_ctx); |
| 883 | break; |
| 884 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_TRAILING_METADATA: |
| 885 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_SEND_TRAILING_METADATA( |
| 886 | exec_ctx); |
| 887 | break; |
| 888 | case GRPC_CHTTP2_INITIATE_WRITE_RETRY_SEND_PING: |
| 889 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_RETRY_SEND_PING(exec_ctx); |
| 890 | break; |
| 891 | case GRPC_CHTTP2_INITIATE_WRITE_CONTINUE_PINGS: |
| 892 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_CONTINUE_PINGS(exec_ctx); |
| 893 | break; |
| 894 | case GRPC_CHTTP2_INITIATE_WRITE_GOAWAY_SENT: |
| 895 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_GOAWAY_SENT(exec_ctx); |
| 896 | break; |
| 897 | case GRPC_CHTTP2_INITIATE_WRITE_RST_STREAM: |
| 898 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_RST_STREAM(exec_ctx); |
| 899 | break; |
| 900 | case GRPC_CHTTP2_INITIATE_WRITE_CLOSE_FROM_API: |
| 901 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_CLOSE_FROM_API(exec_ctx); |
| 902 | break; |
| 903 | case GRPC_CHTTP2_INITIATE_WRITE_STREAM_FLOW_CONTROL: |
| 904 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_STREAM_FLOW_CONTROL(exec_ctx); |
| 905 | break; |
| 906 | case GRPC_CHTTP2_INITIATE_WRITE_TRANSPORT_FLOW_CONTROL: |
| 907 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_TRANSPORT_FLOW_CONTROL( |
| 908 | exec_ctx); |
| 909 | break; |
| 910 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_SETTINGS: |
| 911 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_SEND_SETTINGS(exec_ctx); |
| 912 | break; |
| 913 | case GRPC_CHTTP2_INITIATE_WRITE_BDP_ESTIMATOR_PING: |
| 914 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_BDP_ESTIMATOR_PING(exec_ctx); |
| 915 | break; |
| 916 | case GRPC_CHTTP2_INITIATE_WRITE_FLOW_CONTROL_UNSTALLED_BY_SETTING: |
| 917 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_FLOW_CONTROL_UNSTALLED_BY_SETTING( |
| 918 | exec_ctx); |
| 919 | break; |
| 920 | case GRPC_CHTTP2_INITIATE_WRITE_FLOW_CONTROL_UNSTALLED_BY_UPDATE: |
| 921 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_FLOW_CONTROL_UNSTALLED_BY_UPDATE( |
| 922 | exec_ctx); |
| 923 | break; |
| 924 | case GRPC_CHTTP2_INITIATE_WRITE_APPLICATION_PING: |
| 925 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_APPLICATION_PING(exec_ctx); |
| 926 | break; |
| 927 | case GRPC_CHTTP2_INITIATE_WRITE_KEEPALIVE_PING: |
| 928 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_KEEPALIVE_PING(exec_ctx); |
| 929 | break; |
| 930 | case GRPC_CHTTP2_INITIATE_WRITE_TRANSPORT_FLOW_CONTROL_UNSTALLED: |
| 931 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_TRANSPORT_FLOW_CONTROL_UNSTALLED( |
| 932 | exec_ctx); |
| 933 | break; |
| 934 | case GRPC_CHTTP2_INITIATE_WRITE_PING_RESPONSE: |
| 935 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_PING_RESPONSE(exec_ctx); |
| 936 | break; |
| 937 | case GRPC_CHTTP2_INITIATE_WRITE_FORCE_RST_STREAM: |
| 938 | GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_FORCE_RST_STREAM(exec_ctx); |
| 939 | break; |
| 940 | } |
| 941 | } |
| 942 | |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 943 | void grpc_chttp2_initiate_write(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 944 | grpc_chttp2_transport *t, |
| 945 | grpc_chttp2_initiate_write_reason reason) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 946 | GPR_TIMER_BEGIN("grpc_chttp2_initiate_write", 0); |
Craig Tiller | 64d8024 | 2016-07-15 07:53:33 -0700 | [diff] [blame] | 947 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 948 | switch (t->write_state) { |
| 949 | case GRPC_CHTTP2_WRITE_STATE_IDLE: |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 950 | inc_initiate_write_reason(exec_ctx, reason); |
| 951 | set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_WRITING, |
| 952 | grpc_chttp2_initiate_write_reason_string(reason)); |
Craig Tiller | 3995155 | 2017-07-20 12:52:09 -0700 | [diff] [blame] | 953 | t->is_first_write_in_batch = true; |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 954 | GRPC_CHTTP2_REF_TRANSPORT(t, "writing"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 955 | GRPC_CLOSURE_SCHED( |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 956 | exec_ctx, |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 957 | GRPC_CLOSURE_INIT(&t->write_action_begin_locked, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 958 | write_action_begin_locked, t, |
| 959 | grpc_combiner_finally_scheduler(t->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 960 | GRPC_ERROR_NONE); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 961 | break; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 962 | case GRPC_CHTTP2_WRITE_STATE_WRITING: |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 963 | set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE, |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 964 | grpc_chttp2_initiate_write_reason_string(reason)); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 965 | break; |
Craig Tiller | 09b05fd | 2016-09-07 13:02:05 -0700 | [diff] [blame] | 966 | case GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE: |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 967 | break; |
| 968 | } |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 969 | GPR_TIMER_END("grpc_chttp2_initiate_write", 0); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 970 | } |
| 971 | |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 972 | void grpc_chttp2_mark_stream_writable(grpc_exec_ctx *exec_ctx, |
| 973 | grpc_chttp2_transport *t, |
| 974 | grpc_chttp2_stream *s) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 975 | if (!t->closed && grpc_chttp2_list_add_writable_stream(t, s)) { |
Craig Tiller | fd4c647 | 2016-09-06 20:03:06 -0700 | [diff] [blame] | 976 | GRPC_CHTTP2_STREAM_REF(s, "chttp2_writing:become"); |
Craig Tiller | 3ceabde | 2017-02-02 10:17:42 -0800 | [diff] [blame] | 977 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 978 | } |
| 979 | |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 980 | static grpc_closure_scheduler *write_scheduler(grpc_chttp2_transport *t, |
Craig Tiller | c5fe5cc | 2017-07-21 14:43:55 -0700 | [diff] [blame] | 981 | bool early_results_scheduled, |
| 982 | bool partial_write) { |
Craig Tiller | 3995155 | 2017-07-20 12:52:09 -0700 | [diff] [blame] | 983 | /* if it's not the first write in a batch, always offload to the executor: |
| 984 | we'll probably end up queuing against the kernel anyway, so we'll likely |
| 985 | get better latency overall if we switch writing work elsewhere and continue |
| 986 | with application work above */ |
| 987 | if (!t->is_first_write_in_batch) { |
| 988 | return grpc_executor_scheduler(GRPC_EXECUTOR_SHORT); |
| 989 | } |
Craig Tiller | c5fe5cc | 2017-07-21 14:43:55 -0700 | [diff] [blame] | 990 | /* equivalently, if it's a partial write, we *know* we're going to be taking a |
| 991 | thread jump to write it because of the above, may as well do so |
| 992 | immediately */ |
| 993 | if (partial_write) { |
| 994 | return grpc_executor_scheduler(GRPC_EXECUTOR_SHORT); |
| 995 | } |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 996 | switch (t->opt_target) { |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 997 | case GRPC_CHTTP2_OPTIMIZE_FOR_THROUGHPUT: |
Craig Tiller | 3995155 | 2017-07-20 12:52:09 -0700 | [diff] [blame] | 998 | /* executor gives us the largest probability of being able to batch a |
| 999 | * write with others on this transport */ |
Craig Tiller | 2100101 | 2017-07-20 12:07:34 -0700 | [diff] [blame] | 1000 | return grpc_executor_scheduler(GRPC_EXECUTOR_SHORT); |
| 1001 | case GRPC_CHTTP2_OPTIMIZE_FOR_LATENCY: |
Craig Tiller | 3995155 | 2017-07-20 12:52:09 -0700 | [diff] [blame] | 1002 | return grpc_schedule_on_exec_ctx; |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 1003 | } |
| 1004 | GPR_UNREACHABLE_CODE(return NULL); |
| 1005 | } |
| 1006 | |
Craig Tiller | af723b0 | 2017-07-17 17:56:28 -0700 | [diff] [blame] | 1007 | #define WRITE_STATE_TUPLE_TO_INT(p, i) (2 * (int)(p) + (int)(i)) |
| 1008 | static const char *begin_writing_desc(bool partial, bool inlined) { |
| 1009 | switch (WRITE_STATE_TUPLE_TO_INT(partial, inlined)) { |
| 1010 | case WRITE_STATE_TUPLE_TO_INT(false, false): |
| 1011 | return "begin write in background"; |
| 1012 | case WRITE_STATE_TUPLE_TO_INT(false, true): |
| 1013 | return "begin write in current thread"; |
| 1014 | case WRITE_STATE_TUPLE_TO_INT(true, false): |
| 1015 | return "begin partial write in background"; |
| 1016 | case WRITE_STATE_TUPLE_TO_INT(true, true): |
| 1017 | return "begin partial write in current thread"; |
| 1018 | } |
| 1019 | GPR_UNREACHABLE_CODE(return "bad state tuple"); |
| 1020 | } |
| 1021 | |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1022 | static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *gt, |
| 1023 | grpc_error *error_ignored) { |
| 1024 | GPR_TIMER_BEGIN("write_action_begin_locked", 0); |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1025 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1026 | GPR_ASSERT(t->write_state != GRPC_CHTTP2_WRITE_STATE_IDLE); |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 1027 | grpc_chttp2_begin_write_result r; |
| 1028 | if (t->closed) { |
| 1029 | r.writing = false; |
| 1030 | } else { |
| 1031 | r = grpc_chttp2_begin_write(exec_ctx, t); |
| 1032 | } |
| 1033 | if (r.writing) { |
Craig Tiller | 073a88f | 2017-09-08 14:26:22 -0700 | [diff] [blame] | 1034 | if (r.partial) { |
| 1035 | GRPC_STATS_INC_HTTP2_PARTIAL_WRITES(exec_ctx); |
| 1036 | } |
| 1037 | if (!t->is_first_write_in_batch) { |
| 1038 | GRPC_STATS_INC_HTTP2_WRITES_CONTINUED(exec_ctx); |
| 1039 | } |
Craig Tiller | af723b0 | 2017-07-17 17:56:28 -0700 | [diff] [blame] | 1040 | grpc_closure_scheduler *scheduler = |
Craig Tiller | c5fe5cc | 2017-07-21 14:43:55 -0700 | [diff] [blame] | 1041 | write_scheduler(t, r.early_results_scheduled, r.partial); |
Craig Tiller | 06a1bae | 2017-09-07 13:31:12 -0700 | [diff] [blame] | 1042 | if (scheduler != grpc_schedule_on_exec_ctx) { |
| 1043 | GRPC_STATS_INC_HTTP2_WRITES_OFFLOADED(exec_ctx); |
| 1044 | } |
Craig Tiller | af723b0 | 2017-07-17 17:56:28 -0700 | [diff] [blame] | 1045 | set_write_state( |
| 1046 | exec_ctx, t, r.partial ? GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE |
| 1047 | : GRPC_CHTTP2_WRITE_STATE_WRITING, |
| 1048 | begin_writing_desc(r.partial, scheduler == grpc_schedule_on_exec_ctx)); |
Craig Tiller | af723b0 | 2017-07-17 17:56:28 -0700 | [diff] [blame] | 1049 | GRPC_CLOSURE_SCHED(exec_ctx, GRPC_CLOSURE_INIT(&t->write_action, |
| 1050 | write_action, t, scheduler), |
| 1051 | GRPC_ERROR_NONE); |
Craig Tiller | 7561b82 | 2017-07-11 15:40:30 -0700 | [diff] [blame] | 1052 | } else { |
| 1053 | set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_IDLE, |
| 1054 | "begin writing nothing"); |
| 1055 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "writing"); |
Craig Tiller | 13d455e | 2016-05-27 12:06:34 -0700 | [diff] [blame] | 1056 | } |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1057 | GPR_TIMER_END("write_action_begin_locked", 0); |
Craig Tiller | 13d455e | 2016-05-27 12:06:34 -0700 | [diff] [blame] | 1058 | } |
| 1059 | |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1060 | static void write_action(grpc_exec_ctx *exec_ctx, void *gt, grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1061 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1062 | GPR_TIMER_BEGIN("write_action", 0); |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1063 | grpc_endpoint_write( |
| 1064 | exec_ctx, t->ep, &t->outbuf, |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1065 | GRPC_CLOSURE_INIT(&t->write_action_end_locked, write_action_end_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 1066 | grpc_combiner_scheduler(t->combiner))); |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1067 | GPR_TIMER_END("write_action", 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1068 | } |
| 1069 | |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1070 | static void write_action_end_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 1071 | grpc_error *error) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 1072 | GPR_TIMER_BEGIN("terminate_writing_with_lock", 0); |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1073 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Craig Tiller | d20efd2 | 2015-06-12 16:17:09 -0700 | [diff] [blame] | 1074 | |
Craig Tiller | 2b782d8 | 2016-05-04 16:29:57 -0700 | [diff] [blame] | 1075 | if (error != GRPC_ERROR_NONE) { |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 1076 | close_transport_locked(exec_ctx, t, GRPC_ERROR_REF(error)); |
ctiller | 00297df | 2015-01-12 11:23:09 -0800 | [diff] [blame] | 1077 | } |
Craig Tiller | d20efd2 | 2015-06-12 16:17:09 -0700 | [diff] [blame] | 1078 | |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 1079 | if (t->sent_goaway_state == GRPC_CHTTP2_GOAWAY_SEND_SCHEDULED) { |
| 1080 | t->sent_goaway_state = GRPC_CHTTP2_GOAWAY_SENT; |
| 1081 | if (grpc_chttp2_stream_map_size(&t->stream_map) == 0) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1082 | close_transport_locked( |
| 1083 | exec_ctx, t, GRPC_ERROR_CREATE_FROM_STATIC_STRING("goaway sent")); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 1084 | } |
| 1085 | } |
| 1086 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1087 | switch (t->write_state) { |
| 1088 | case GRPC_CHTTP2_WRITE_STATE_IDLE: |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 1089 | GPR_UNREACHABLE_CODE(break); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1090 | case GRPC_CHTTP2_WRITE_STATE_WRITING: |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 1091 | GPR_TIMER_MARK("state=writing", 0); |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 1092 | set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_IDLE, |
| 1093 | "finish writing"); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 1094 | break; |
Craig Tiller | 09b05fd | 2016-09-07 13:02:05 -0700 | [diff] [blame] | 1095 | case GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE: |
| 1096 | GPR_TIMER_MARK("state=writing_stale_no_poller", 0); |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 1097 | set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_WRITING, |
Craig Tiller | a8be5bf | 2017-07-13 15:23:43 -0700 | [diff] [blame] | 1098 | "continue writing"); |
Craig Tiller | 3995155 | 2017-07-20 12:52:09 -0700 | [diff] [blame] | 1099 | t->is_first_write_in_batch = false; |
Craig Tiller | 09b05fd | 2016-09-07 13:02:05 -0700 | [diff] [blame] | 1100 | GRPC_CHTTP2_REF_TRANSPORT(t, "writing"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1101 | GRPC_CLOSURE_RUN( |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1102 | exec_ctx, |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1103 | GRPC_CLOSURE_INIT(&t->write_action_begin_locked, |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1104 | write_action_begin_locked, t, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 1105 | grpc_combiner_finally_scheduler(t->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1106 | GRPC_ERROR_NONE); |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 1107 | break; |
Craig Tiller | 13d455e | 2016-05-27 12:06:34 -0700 | [diff] [blame] | 1108 | } |
Craig Tiller | d7906f5 | 2016-05-31 16:07:27 -0700 | [diff] [blame] | 1109 | |
Craig Tiller | ac88ca1 | 2016-11-16 14:21:29 -0800 | [diff] [blame] | 1110 | grpc_chttp2_end_write(exec_ctx, t, GRPC_ERROR_REF(error)); |
| 1111 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 1112 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "writing"); |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 1113 | GPR_TIMER_END("terminate_writing_with_lock", 0); |
ctiller | 00297df | 2015-01-12 11:23:09 -0800 | [diff] [blame] | 1114 | } |
Craig Tiller | 4b074d5 | 2015-06-23 07:48:21 -0700 | [diff] [blame] | 1115 | |
ncteisen | 08cefa0 | 2017-06-20 11:29:26 -0700 | [diff] [blame] | 1116 | // Dirties an HTTP2 setting to be sent out next time a writing path occurs. |
| 1117 | // If the change needs to occur immediately, manually initiate a write. |
| 1118 | static void queue_setting_update(grpc_exec_ctx *exec_ctx, |
| 1119 | grpc_chttp2_transport *t, |
| 1120 | grpc_chttp2_setting_id id, uint32_t value) { |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1121 | const grpc_chttp2_setting_parameters *sp = |
| 1122 | &grpc_chttp2_settings_parameters[id]; |
| 1123 | uint32_t use_value = GPR_CLAMP(value, sp->min_value, sp->max_value); |
| 1124 | if (use_value != value) { |
| 1125 | gpr_log(GPR_INFO, "Requested parameter %s clamped from %d to %d", sp->name, |
| 1126 | value, use_value); |
| 1127 | } |
| 1128 | if (use_value != t->settings[GRPC_LOCAL_SETTINGS][id]) { |
| 1129 | t->settings[GRPC_LOCAL_SETTINGS][id] = use_value; |
| 1130 | t->dirtied_local_settings = 1; |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 1131 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1132 | } |
| 1133 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1134 | void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx, |
| 1135 | grpc_chttp2_transport *t, |
| 1136 | uint32_t goaway_error, |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 1137 | grpc_slice goaway_text) { |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 1138 | // GRPC_CHTTP2_IF_TRACING( |
| 1139 | // gpr_log(GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg)); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1140 | t->seen_goaway = 1; |
Yuchen Zeng | ebe6baa | 2017-03-31 16:28:46 -0700 | [diff] [blame] | 1141 | |
| 1142 | /* When a client receives a GOAWAY with error code ENHANCE_YOUR_CALM and debug |
Jan Tattermusch | a1f3c20 | 2017-05-10 20:26:41 +0200 | [diff] [blame] | 1143 | * data equal to "too_many_pings", it should log the occurrence at a log level |
Yuchen Zeng | ebe6baa | 2017-03-31 16:28:46 -0700 | [diff] [blame] | 1144 | * that is enabled by default and double the configured KEEPALIVE_TIME used |
| 1145 | * for new connections on that channel. */ |
| 1146 | if (t->is_client && goaway_error == GRPC_HTTP2_ENHANCE_YOUR_CALM && |
| 1147 | grpc_slice_str_cmp(goaway_text, "too_many_pings") == 0) { |
| 1148 | gpr_log(GPR_ERROR, |
Yuchen Zeng | 8b0a4d2 | 2017-04-03 11:24:42 -0700 | [diff] [blame] | 1149 | "Received a GOAWAY with error code ENHANCE_YOUR_CALM and debug " |
| 1150 | "data equal to \"too_many_pings\""); |
Yuchen Zeng | ebe6baa | 2017-03-31 16:28:46 -0700 | [diff] [blame] | 1151 | double current_keepalive_time_ms = |
| 1152 | gpr_timespec_to_micros(t->keepalive_time) / 1000; |
| 1153 | t->keepalive_time = |
Yuchen Zeng | 8b0a4d2 | 2017-04-03 11:24:42 -0700 | [diff] [blame] | 1154 | current_keepalive_time_ms > INT_MAX / KEEPALIVE_TIME_BACKOFF_MULTIPLIER |
Yuchen Zeng | ebe6baa | 2017-03-31 16:28:46 -0700 | [diff] [blame] | 1155 | ? gpr_inf_future(GPR_TIMESPAN) |
Yuchen Zeng | 8b0a4d2 | 2017-04-03 11:24:42 -0700 | [diff] [blame] | 1156 | : gpr_time_from_millis((int64_t)(current_keepalive_time_ms * |
| 1157 | KEEPALIVE_TIME_BACKOFF_MULTIPLIER), |
Yuchen Zeng | ebe6baa | 2017-03-31 16:28:46 -0700 | [diff] [blame] | 1158 | GPR_TIMESPAN); |
| 1159 | } |
| 1160 | |
Craig Tiller | 6ae6fc7 | 2016-06-01 16:28:00 -0700 | [diff] [blame] | 1161 | /* lie: use transient failure from the transport to indicate goaway has been |
| 1162 | * received */ |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1163 | connectivity_state_set( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1164 | exec_ctx, t, GRPC_CHANNEL_TRANSIENT_FAILURE, |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1165 | grpc_error_set_str( |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1166 | grpc_error_set_int( |
| 1167 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("GOAWAY received"), |
| 1168 | GRPC_ERROR_INT_HTTP2_ERROR, (intptr_t)goaway_error), |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 1169 | GRPC_ERROR_STR_RAW_BYTES, goaway_text), |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1170 | "got_goaway"); |
Craig Tiller | 7098c03 | 2015-05-04 10:18:28 -0700 | [diff] [blame] | 1171 | } |
| 1172 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1173 | static void maybe_start_some_streams(grpc_exec_ctx *exec_ctx, |
| 1174 | grpc_chttp2_transport *t) { |
| 1175 | grpc_chttp2_stream *s; |
Craig Tiller | 4aa71a1 | 2015-06-15 13:00:55 -0700 | [diff] [blame] | 1176 | /* start streams where we have free grpc_chttp2_stream ids and free |
| 1177 | * concurrency */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1178 | while (t->next_stream_id <= MAX_CLIENT_STREAM_ID && |
| 1179 | grpc_chttp2_stream_map_size(&t->stream_map) < |
| 1180 | t->settings[GRPC_PEER_SETTINGS] |
| 1181 | [GRPC_CHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS] && |
| 1182 | grpc_chttp2_list_pop_waiting_for_concurrency(t, &s)) { |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1183 | /* safe since we can't (legally) be parsing this stream yet */ |
Craig Tiller | ab63073 | 2015-06-25 11:20:01 -0700 | [diff] [blame] | 1184 | GRPC_CHTTP2_IF_TRACING(gpr_log( |
| 1185 | GPR_DEBUG, "HTTP:%s: Allocating new grpc_chttp2_stream %p to id %d", |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1186 | t->is_client ? "CLI" : "SVR", s, t->next_stream_id)); |
Craig Tiller | c1f7560 | 2015-04-24 11:44:53 -0700 | [diff] [blame] | 1187 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1188 | GPR_ASSERT(s->id == 0); |
| 1189 | s->id = t->next_stream_id; |
| 1190 | t->next_stream_id += 2; |
Craig Tiller | 564872d | 2015-06-18 11:21:22 -0700 | [diff] [blame] | 1191 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1192 | if (t->next_stream_id >= MAX_CLIENT_STREAM_ID) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1193 | connectivity_state_set( |
| 1194 | exec_ctx, t, GRPC_CHANNEL_TRANSIENT_FAILURE, |
| 1195 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Stream IDs exhausted"), |
| 1196 | "no_more_stream_ids"); |
Craig Tiller | 7098c03 | 2015-05-04 10:18:28 -0700 | [diff] [blame] | 1197 | } |
| 1198 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1199 | grpc_chttp2_stream_map_add(&t->stream_map, s->id, s); |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 1200 | post_destructive_reclaimer(exec_ctx, t); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1201 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 1202 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 1203 | GRPC_CHTTP2_INITIATE_WRITE_START_NEW_STREAM); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1204 | } |
Craig Tiller | 7098c03 | 2015-05-04 10:18:28 -0700 | [diff] [blame] | 1205 | /* cancel out streams that will never be started */ |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1206 | while (t->next_stream_id >= MAX_CLIENT_STREAM_ID && |
| 1207 | grpc_chttp2_list_pop_waiting_for_concurrency(t, &s)) { |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 1208 | grpc_chttp2_cancel_stream( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1209 | exec_ctx, t, s, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1210 | grpc_error_set_int( |
| 1211 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Stream IDs exhausted"), |
| 1212 | GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE)); |
Craig Tiller | 7098c03 | 2015-05-04 10:18:28 -0700 | [diff] [blame] | 1213 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1214 | } |
| 1215 | |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1216 | /* Flag that this closure barrier wants stats to be updated before finishing */ |
Craig Tiller | 466129e | 2016-03-09 14:43:18 -0800 | [diff] [blame] | 1217 | #define CLOSURE_BARRIER_STATS_BIT (1 << 0) |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1218 | /* Flag that this closure barrier may be covering a write in a pollset, and so |
| 1219 | we should not complete this closure until we can prove that the write got |
| 1220 | scheduled */ |
| 1221 | #define CLOSURE_BARRIER_MAY_COVER_WRITE (1 << 1) |
| 1222 | /* First bit of the reference count, stored in the high order bits (with the low |
| 1223 | bits being used for flags defined above) */ |
Craig Tiller | 466129e | 2016-03-09 14:43:18 -0800 | [diff] [blame] | 1224 | #define CLOSURE_BARRIER_FIRST_REF_BIT (1 << 16) |
| 1225 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1226 | static grpc_closure *add_closure_barrier(grpc_closure *closure) { |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1227 | closure->next_data.scratch += CLOSURE_BARRIER_FIRST_REF_BIT; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1228 | return closure; |
| 1229 | } |
| 1230 | |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1231 | static void null_then_run_closure(grpc_exec_ctx *exec_ctx, |
| 1232 | grpc_closure **closure, grpc_error *error) { |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1233 | grpc_closure *c = *closure; |
| 1234 | *closure = NULL; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1235 | GRPC_CLOSURE_RUN(exec_ctx, c, error); |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1236 | } |
| 1237 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1238 | void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, |
| 1239 | grpc_chttp2_transport *t, |
| 1240 | grpc_chttp2_stream *s, |
| 1241 | grpc_closure **pclosure, |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1242 | grpc_error *error, const char *desc) { |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1243 | grpc_closure *closure = *pclosure; |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1244 | *pclosure = NULL; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1245 | if (closure == NULL) { |
Craig Tiller | 965eab3 | 2016-05-07 22:11:37 -0700 | [diff] [blame] | 1246 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1247 | return; |
| 1248 | } |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1249 | closure->next_data.scratch -= CLOSURE_BARRIER_FIRST_REF_BIT; |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 1250 | if (GRPC_TRACER_ON(grpc_http_trace)) { |
Craig Tiller | c494c7b | 2016-12-02 17:10:06 -0800 | [diff] [blame] | 1251 | const char *errstr = grpc_error_string(error); |
Craig Tiller | af723b0 | 2017-07-17 17:56:28 -0700 | [diff] [blame] | 1252 | gpr_log( |
| 1253 | GPR_DEBUG, |
| 1254 | "complete_closure_step: t=%p %p refs=%d flags=0x%04x desc=%s err=%s " |
| 1255 | "write_state=%s", |
| 1256 | t, closure, |
| 1257 | (int)(closure->next_data.scratch / CLOSURE_BARRIER_FIRST_REF_BIT), |
| 1258 | (int)(closure->next_data.scratch % CLOSURE_BARRIER_FIRST_REF_BIT), desc, |
| 1259 | errstr, write_state_name(t->write_state)); |
Craig Tiller | c494c7b | 2016-12-02 17:10:06 -0800 | [diff] [blame] | 1260 | } |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1261 | if (error != GRPC_ERROR_NONE) { |
Craig Tiller | a7cd41c | 2016-08-31 12:59:24 -0700 | [diff] [blame] | 1262 | if (closure->error_data.error == GRPC_ERROR_NONE) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1263 | closure->error_data.error = GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 1264 | "Error in HTTP transport completing operation"); |
| 1265 | closure->error_data.error = grpc_error_set_str( |
| 1266 | closure->error_data.error, GRPC_ERROR_STR_TARGET_ADDRESS, |
| 1267 | grpc_slice_from_copied_string(t->peer_string)); |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1268 | } |
Craig Tiller | a7cd41c | 2016-08-31 12:59:24 -0700 | [diff] [blame] | 1269 | closure->error_data.error = |
| 1270 | grpc_error_add_child(closure->error_data.error, error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1271 | } |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1272 | if (closure->next_data.scratch < CLOSURE_BARRIER_FIRST_REF_BIT) { |
| 1273 | if (closure->next_data.scratch & CLOSURE_BARRIER_STATS_BIT) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1274 | grpc_transport_move_stats(&s->stats, s->collecting_stats); |
| 1275 | s->collecting_stats = NULL; |
Craig Tiller | 466129e | 2016-03-09 14:43:18 -0800 | [diff] [blame] | 1276 | } |
Craig Tiller | 504ae43 | 2016-12-05 11:07:58 -0800 | [diff] [blame] | 1277 | if ((t->write_state == GRPC_CHTTP2_WRITE_STATE_IDLE) || |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1278 | !(closure->next_data.scratch & CLOSURE_BARRIER_MAY_COVER_WRITE)) { |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1279 | GRPC_CLOSURE_RUN(exec_ctx, closure, closure->error_data.error); |
Craig Tiller | c494c7b | 2016-12-02 17:10:06 -0800 | [diff] [blame] | 1280 | } else { |
| 1281 | grpc_closure_list_append(&t->run_after_write, closure, |
| 1282 | closure->error_data.error); |
| 1283 | } |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1284 | } |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1285 | } |
| 1286 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1287 | static bool contains_non_ok_status(grpc_metadata_batch *batch) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1288 | if (batch->idx.named.grpc_status != NULL) { |
| 1289 | return !grpc_mdelem_eq(batch->idx.named.grpc_status->md, |
| 1290 | GRPC_MDELEM_GRPC_STATUS_0); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1291 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1292 | return false; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1293 | } |
| 1294 | |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1295 | static void maybe_become_writable_due_to_send_msg(grpc_exec_ctx *exec_ctx, |
| 1296 | grpc_chttp2_transport *t, |
| 1297 | grpc_chttp2_stream *s) { |
| 1298 | if (s->id != 0 && (!s->write_buffering || |
| 1299 | s->flow_controlled_buffer.length > t->write_buffer_size)) { |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1300 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 1301 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 1302 | GRPC_CHTTP2_INITIATE_WRITE_SEND_MESSAGE); |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1303 | } |
| 1304 | } |
| 1305 | |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1306 | static void add_fetched_slice_locked(grpc_exec_ctx *exec_ctx, |
| 1307 | grpc_chttp2_transport *t, |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1308 | grpc_chttp2_stream *s) { |
| 1309 | s->fetched_send_message_length += |
Craig Tiller | 618e67d | 2016-10-26 21:08:10 -0700 | [diff] [blame] | 1310 | (uint32_t)GRPC_SLICE_LENGTH(s->fetching_slice); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 1311 | grpc_slice_buffer_add(&s->flow_controlled_buffer, s->fetching_slice); |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1312 | maybe_become_writable_due_to_send_msg(exec_ctx, t, s); |
Craig Tiller | 8d301c4 | 2016-10-25 09:08:26 -0700 | [diff] [blame] | 1313 | } |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1314 | |
| 1315 | static void continue_fetching_send_locked(grpc_exec_ctx *exec_ctx, |
| 1316 | grpc_chttp2_transport *t, |
| 1317 | grpc_chttp2_stream *s) { |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1318 | for (;;) { |
| 1319 | if (s->fetching_send_message == NULL) { |
| 1320 | /* Stream was cancelled before message fetch completed */ |
| 1321 | abort(); /* TODO(ctiller): what cleanup here? */ |
| 1322 | return; /* early out */ |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1323 | } |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1324 | if (s->fetched_send_message_length == s->fetching_send_message->length) { |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 1325 | grpc_byte_stream_destroy(exec_ctx, s->fetching_send_message); |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1326 | int64_t notify_offset = s->next_message_end_offset; |
| 1327 | if (notify_offset <= s->flow_controlled_bytes_written) { |
| 1328 | grpc_chttp2_complete_closure_step( |
| 1329 | exec_ctx, t, s, &s->fetching_send_message_finished, GRPC_ERROR_NONE, |
| 1330 | "fetching_send_message_finished"); |
| 1331 | } else { |
| 1332 | grpc_chttp2_write_cb *cb = t->write_cb_pool; |
| 1333 | if (cb == NULL) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1334 | cb = (grpc_chttp2_write_cb *)gpr_malloc(sizeof(*cb)); |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1335 | } else { |
| 1336 | t->write_cb_pool = cb->next; |
| 1337 | } |
| 1338 | cb->call_at_byte = notify_offset; |
| 1339 | cb->closure = s->fetching_send_message_finished; |
| 1340 | s->fetching_send_message_finished = NULL; |
Craig Tiller | e9a7665 | 2017-05-12 13:17:14 -0700 | [diff] [blame] | 1341 | grpc_chttp2_write_cb **list = |
| 1342 | s->fetching_send_message->flags & GRPC_WRITE_THROUGH |
| 1343 | ? &s->on_write_finished_cbs |
| 1344 | : &s->on_flow_controlled_cbs; |
| 1345 | cb->next = *list; |
| 1346 | *list = cb; |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1347 | } |
| 1348 | s->fetching_send_message = NULL; |
| 1349 | return; /* early out */ |
| 1350 | } else if (grpc_byte_stream_next(exec_ctx, s->fetching_send_message, |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1351 | UINT32_MAX, &s->complete_fetch_locked)) { |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 1352 | grpc_error *error = grpc_byte_stream_pull( |
| 1353 | exec_ctx, s->fetching_send_message, &s->fetching_slice); |
| 1354 | if (error != GRPC_ERROR_NONE) { |
| 1355 | grpc_byte_stream_destroy(exec_ctx, s->fetching_send_message); |
| 1356 | grpc_chttp2_cancel_stream(exec_ctx, t, s, error); |
| 1357 | } else { |
| 1358 | add_fetched_slice_locked(exec_ctx, t, s); |
| 1359 | } |
Craig Tiller | 87e004b | 2016-10-25 08:27:14 -0700 | [diff] [blame] | 1360 | } |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1361 | } |
| 1362 | } |
| 1363 | |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1364 | static void complete_fetch_locked(grpc_exec_ctx *exec_ctx, void *gs, |
| 1365 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1366 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1367 | grpc_chttp2_transport *t = s->t; |
| 1368 | if (error == GRPC_ERROR_NONE) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1369 | error = grpc_byte_stream_pull(exec_ctx, s->fetching_send_message, |
| 1370 | &s->fetching_slice); |
| 1371 | if (error == GRPC_ERROR_NONE) { |
| 1372 | add_fetched_slice_locked(exec_ctx, t, s); |
| 1373 | continue_fetching_send_locked(exec_ctx, t, s); |
| 1374 | } |
| 1375 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1376 | if (error != GRPC_ERROR_NONE) { |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 1377 | grpc_byte_stream_destroy(exec_ctx, s->fetching_send_message); |
| 1378 | grpc_chttp2_cancel_stream(exec_ctx, t, s, error); |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1379 | } |
| 1380 | } |
| 1381 | |
Craig Tiller | 2b782d8 | 2016-05-04 16:29:57 -0700 | [diff] [blame] | 1382 | static void do_nothing(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {} |
Craig Tiller | 027a74c | 2015-11-10 08:37:46 +0000 | [diff] [blame] | 1383 | |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1384 | static void log_metadata(const grpc_metadata_batch *md_batch, uint32_t id, |
| 1385 | bool is_client, bool is_initial) { |
Vijay Pai | 3d7d5f4 | 2017-05-04 10:02:24 -0700 | [diff] [blame] | 1386 | for (grpc_linked_mdelem *md = md_batch->list.head; md != NULL; |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1387 | md = md->next) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1388 | char *key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); |
| 1389 | char *value = grpc_slice_to_c_string(GRPC_MDVALUE(md->md)); |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1390 | gpr_log(GPR_INFO, "HTTP:%d:%s:%s: %s: %s", id, is_initial ? "HDR" : "TRL", |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1391 | is_client ? "CLI" : "SVR", key, value); |
| 1392 | gpr_free(key); |
| 1393 | gpr_free(value); |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1394 | } |
| 1395 | } |
| 1396 | |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 1397 | static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, |
| 1398 | grpc_error *error_ignored) { |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 1399 | GPR_TIMER_BEGIN("perform_stream_op_locked", 0); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1400 | |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1401 | grpc_transport_stream_op_batch *op = |
| 1402 | (grpc_transport_stream_op_batch *)stream_op; |
| 1403 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)op->handler_private.extra_arg; |
Craig Tiller | a0f3abd | 2017-03-31 15:42:16 -0700 | [diff] [blame] | 1404 | grpc_transport_stream_op_batch_payload *op_payload = op->payload; |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1405 | grpc_chttp2_transport *t = s->t; |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 1406 | |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1407 | GRPC_STATS_INC_HTTP2_OP_BATCHES(exec_ctx); |
| 1408 | |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 1409 | if (GRPC_TRACER_ON(grpc_http_trace)) { |
Craig Tiller | a0f3abd | 2017-03-31 15:42:16 -0700 | [diff] [blame] | 1410 | char *str = grpc_transport_stream_op_batch_string(op); |
Craig Tiller | 35e8783 | 2016-09-28 10:53:41 -0700 | [diff] [blame] | 1411 | gpr_log(GPR_DEBUG, "perform_stream_op_locked: %s; on_complete = %p", str, |
| 1412 | op->on_complete); |
Craig Tiller | e7603b8 | 2016-07-18 15:43:42 -0700 | [diff] [blame] | 1413 | gpr_free(str); |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1414 | if (op->send_initial_metadata) { |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1415 | log_metadata(op_payload->send_initial_metadata.send_initial_metadata, |
| 1416 | s->id, t->is_client, true); |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1417 | } |
| 1418 | if (op->send_trailing_metadata) { |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1419 | log_metadata(op_payload->send_trailing_metadata.send_trailing_metadata, |
| 1420 | s->id, t->is_client, false); |
yang-g | 8fb73d2 | 2016-11-21 16:29:58 -0800 | [diff] [blame] | 1421 | } |
Craig Tiller | e7603b8 | 2016-07-18 15:43:42 -0700 | [diff] [blame] | 1422 | } |
| 1423 | |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 1424 | grpc_closure *on_complete = op->on_complete; |
Craig Tiller | 027a74c | 2015-11-10 08:37:46 +0000 | [diff] [blame] | 1425 | if (on_complete == NULL) { |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1426 | on_complete = |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1427 | GRPC_CLOSURE_CREATE(do_nothing, NULL, grpc_schedule_on_exec_ctx); |
Craig Tiller | 027a74c | 2015-11-10 08:37:46 +0000 | [diff] [blame] | 1428 | } |
Craig Tiller | c8db73c | 2016-08-30 14:00:48 -0700 | [diff] [blame] | 1429 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1430 | /* use final_data as a barrier until enqueue time; the inital counter is |
| 1431 | dropped at the end of this function */ |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1432 | on_complete->next_data.scratch = CLOSURE_BARRIER_FIRST_REF_BIT; |
Craig Tiller | a7cd41c | 2016-08-31 12:59:24 -0700 | [diff] [blame] | 1433 | on_complete->error_data.error = GRPC_ERROR_NONE; |
Craig Tiller | 466129e | 2016-03-09 14:43:18 -0800 | [diff] [blame] | 1434 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1435 | if (op->collect_stats) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1436 | GPR_ASSERT(s->collecting_stats == NULL); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1437 | s->collecting_stats = op_payload->collect_stats.collect_stats; |
Craig Tiller | 781bab53 | 2016-05-05 08:15:28 -0700 | [diff] [blame] | 1438 | on_complete->next_data.scratch |= CLOSURE_BARRIER_STATS_BIT; |
Craig Tiller | 466129e | 2016-03-09 14:43:18 -0800 | [diff] [blame] | 1439 | } |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 1440 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1441 | if (op->cancel_stream) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1442 | GRPC_STATS_INC_HTTP2_OP_CANCEL(exec_ctx); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1443 | grpc_chttp2_cancel_stream(exec_ctx, t, s, |
| 1444 | op_payload->cancel_stream.cancel_error); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1445 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 1446 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1447 | if (op->send_initial_metadata) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1448 | GRPC_STATS_INC_HTTP2_OP_SEND_INITIAL_METADATA(exec_ctx); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1449 | GPR_ASSERT(s->send_initial_metadata_finished == NULL); |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1450 | on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE; |
Muxi Yan | a2279bd | 2017-07-26 14:48:21 -0700 | [diff] [blame] | 1451 | |
| 1452 | /* Identify stream compression */ |
| 1453 | if ((s->stream_compression_send_enabled = |
| 1454 | (op_payload->send_initial_metadata.send_initial_metadata->idx.named |
| 1455 | .content_encoding != NULL)) == true) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1456 | s->compressed_data_buffer = |
| 1457 | (grpc_slice_buffer *)gpr_malloc(sizeof(grpc_slice_buffer)); |
Muxi Yan | a2279bd | 2017-07-26 14:48:21 -0700 | [diff] [blame] | 1458 | grpc_slice_buffer_init(s->compressed_data_buffer); |
| 1459 | } |
| 1460 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1461 | s->send_initial_metadata_finished = add_closure_barrier(on_complete); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1462 | s->send_initial_metadata = |
| 1463 | op_payload->send_initial_metadata.send_initial_metadata; |
Mark D. Roth | 22b338e | 2016-05-04 13:27:56 -0700 | [diff] [blame] | 1464 | const size_t metadata_size = |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1465 | grpc_metadata_batch_size(s->send_initial_metadata); |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1466 | const size_t metadata_peer_limit = |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1467 | t->settings[GRPC_PEER_SETTINGS] |
| 1468 | [GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE]; |
| 1469 | if (t->is_client) { |
| 1470 | s->deadline = |
| 1471 | gpr_time_min(s->deadline, s->send_initial_metadata->deadline); |
Craig Tiller | c22e31f | 2016-07-08 13:22:18 -0700 | [diff] [blame] | 1472 | } |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1473 | if (metadata_size > metadata_peer_limit) { |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 1474 | grpc_chttp2_cancel_stream( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1475 | exec_ctx, t, s, |
Craig Tiller | 09c464a | 2016-06-01 08:16:29 -0700 | [diff] [blame] | 1476 | grpc_error_set_int( |
| 1477 | grpc_error_set_int( |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1478 | grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 1479 | "to-be-sent initial metadata size " |
| 1480 | "exceeds peer limit"), |
| 1481 | GRPC_ERROR_INT_SIZE, |
| 1482 | (intptr_t)metadata_size), |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 1483 | GRPC_ERROR_INT_LIMIT, (intptr_t)metadata_peer_limit), |
| 1484 | GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_RESOURCE_EXHAUSTED)); |
Craig Tiller | c079c11 | 2015-04-22 15:23:39 -0700 | [diff] [blame] | 1485 | } else { |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1486 | if (contains_non_ok_status(s->send_initial_metadata)) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1487 | s->seen_error = true; |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1488 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1489 | if (!s->write_closed) { |
| 1490 | if (t->is_client) { |
Craig Tiller | 0f7eb30 | 2016-10-27 15:30:21 -0700 | [diff] [blame] | 1491 | if (!t->closed) { |
| 1492 | GPR_ASSERT(s->id == 0); |
| 1493 | grpc_chttp2_list_add_waiting_for_concurrency(t, s); |
| 1494 | maybe_start_some_streams(exec_ctx, t); |
| 1495 | } else { |
David Garcia Quintas | 08f7624 | 2017-02-16 12:17:59 -0800 | [diff] [blame] | 1496 | grpc_chttp2_cancel_stream( |
| 1497 | exec_ctx, t, s, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1498 | grpc_error_set_int( |
| 1499 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport closed"), |
| 1500 | GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE)); |
Craig Tiller | 0f7eb30 | 2016-10-27 15:30:21 -0700 | [diff] [blame] | 1501 | } |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1502 | } else { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1503 | GPR_ASSERT(s->id != 0); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1504 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 1505 | if (!(op->send_message && |
| 1506 | (op->payload->send_message.send_message->flags & |
| 1507 | GRPC_WRITE_BUFFER_HINT))) { |
| 1508 | grpc_chttp2_initiate_write( |
| 1509 | exec_ctx, t, GRPC_CHTTP2_INITIATE_WRITE_SEND_INITIAL_METADATA); |
Yuxuan Li | 34894e4 | 2017-02-08 17:57:24 -0800 | [diff] [blame] | 1510 | } |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1511 | } |
| 1512 | } else { |
David Garcia Quintas | 3fde399 | 2016-11-10 14:20:17 -0800 | [diff] [blame] | 1513 | s->send_initial_metadata = NULL; |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1514 | grpc_chttp2_complete_closure_step( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1515 | exec_ctx, t, s, &s->send_initial_metadata_finished, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1516 | GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1517 | "Attempt to send initial metadata after stream was closed", |
| 1518 | &s->write_closed_error, 1), |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1519 | "send_initial_metadata_finished"); |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1520 | } |
Craig Tiller | c079c11 | 2015-04-22 15:23:39 -0700 | [diff] [blame] | 1521 | } |
Mark D. Roth | 764cf04 | 2017-09-01 09:00:06 -0700 | [diff] [blame] | 1522 | if (op_payload->send_initial_metadata.peer_string != NULL) { |
| 1523 | gpr_atm_rel_store(op_payload->send_initial_metadata.peer_string, |
| 1524 | (gpr_atm)gpr_strdup(t->peer_string)); |
| 1525 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 1526 | } |
| 1527 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1528 | if (op->send_message) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1529 | GRPC_STATS_INC_HTTP2_OP_SEND_MESSAGE(exec_ctx); |
| 1530 | GRPC_STATS_INC_HTTP2_SEND_MESSAGE_SIZE( |
| 1531 | exec_ctx, op->payload->send_message.send_message->length); |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1532 | on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE; |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1533 | s->fetching_send_message_finished = add_closure_barrier(op->on_complete); |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1534 | if (s->write_closed) { |
Mark D. Roth | 764cf04 | 2017-09-01 09:00:06 -0700 | [diff] [blame] | 1535 | // Return an error unless the client has already received trailing |
| 1536 | // metadata from the server, since an application using a |
| 1537 | // streaming call might send another message before getting a |
| 1538 | // recv_message failure, breaking out of its loop, and then |
| 1539 | // starting recv_trailing_metadata. |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1540 | grpc_chttp2_complete_closure_step( |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1541 | exec_ctx, t, s, &s->fetching_send_message_finished, |
Mark D. Roth | 764cf04 | 2017-09-01 09:00:06 -0700 | [diff] [blame] | 1542 | t->is_client && s->received_trailing_metadata |
| 1543 | ? GRPC_ERROR_NONE |
| 1544 | : GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( |
| 1545 | "Attempt to send message after stream was closed", |
| 1546 | &s->write_closed_error, 1), |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1547 | "fetching_send_message_finished"); |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1548 | } else { |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1549 | GPR_ASSERT(s->fetching_send_message == NULL); |
Muxi Yan | f20bfaa | 2017-07-19 16:27:02 -0700 | [diff] [blame] | 1550 | uint8_t *frame_hdr = grpc_slice_buffer_tiny_add( |
| 1551 | &s->flow_controlled_buffer, GRPC_HEADER_SIZE_IN_BYTES); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1552 | uint32_t flags = op_payload->send_message.send_message->flags; |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1553 | frame_hdr[0] = (flags & GRPC_WRITE_INTERNAL_COMPRESS) != 0; |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1554 | size_t len = op_payload->send_message.send_message->length; |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1555 | frame_hdr[1] = (uint8_t)(len >> 24); |
| 1556 | frame_hdr[2] = (uint8_t)(len >> 16); |
| 1557 | frame_hdr[3] = (uint8_t)(len >> 8); |
| 1558 | frame_hdr[4] = (uint8_t)(len); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1559 | s->fetching_send_message = op_payload->send_message.send_message; |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1560 | s->fetched_send_message_length = 0; |
Craig Tiller | 9381c00 | 2016-10-07 13:09:45 -0700 | [diff] [blame] | 1561 | s->next_message_end_offset = s->flow_controlled_bytes_written + |
| 1562 | (int64_t)s->flow_controlled_buffer.length + |
| 1563 | (int64_t)len; |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1564 | if (flags & GRPC_WRITE_BUFFER_HINT) { |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1565 | s->next_message_end_offset -= t->write_buffer_size; |
| 1566 | s->write_buffering = true; |
| 1567 | } else { |
| 1568 | s->write_buffering = false; |
Craig Tiller | 0b8e0d5 | 2016-08-29 08:52:42 -0700 | [diff] [blame] | 1569 | } |
Craig Tiller | 1696684 | 2016-08-29 10:34:57 -0700 | [diff] [blame] | 1570 | continue_fetching_send_locked(exec_ctx, t, s); |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1571 | maybe_become_writable_due_to_send_msg(exec_ctx, t, s); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 1572 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 1573 | } |
| 1574 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1575 | if (op->send_trailing_metadata) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1576 | GRPC_STATS_INC_HTTP2_OP_SEND_TRAILING_METADATA(exec_ctx); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1577 | GPR_ASSERT(s->send_trailing_metadata_finished == NULL); |
Craig Tiller | 73c4f8f | 2016-12-05 11:11:59 -0800 | [diff] [blame] | 1578 | on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1579 | s->send_trailing_metadata_finished = add_closure_barrier(on_complete); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1580 | s->send_trailing_metadata = |
| 1581 | op_payload->send_trailing_metadata.send_trailing_metadata; |
Craig Tiller | 4e6247a | 2017-01-05 10:17:01 -0800 | [diff] [blame] | 1582 | s->write_buffering = false; |
Mark D. Roth | 22b338e | 2016-05-04 13:27:56 -0700 | [diff] [blame] | 1583 | const size_t metadata_size = |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1584 | grpc_metadata_batch_size(s->send_trailing_metadata); |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1585 | const size_t metadata_peer_limit = |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1586 | t->settings[GRPC_PEER_SETTINGS] |
| 1587 | [GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE]; |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1588 | if (metadata_size > metadata_peer_limit) { |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 1589 | grpc_chttp2_cancel_stream( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1590 | exec_ctx, t, s, |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 1591 | grpc_error_set_int( |
| 1592 | grpc_error_set_int( |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1593 | grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 1594 | "to-be-sent trailing metadata size " |
| 1595 | "exceeds peer limit"), |
| 1596 | GRPC_ERROR_INT_SIZE, |
| 1597 | (intptr_t)metadata_size), |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 1598 | GRPC_ERROR_INT_LIMIT, (intptr_t)metadata_peer_limit), |
| 1599 | GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_RESOURCE_EXHAUSTED)); |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1600 | } else { |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1601 | if (contains_non_ok_status(s->send_trailing_metadata)) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1602 | s->seen_error = true; |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1603 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1604 | if (s->write_closed) { |
| 1605 | s->send_trailing_metadata = NULL; |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1606 | grpc_chttp2_complete_closure_step( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1607 | exec_ctx, t, s, &s->send_trailing_metadata_finished, |
Craig Tiller | 306efc7 | 2017-03-20 09:45:12 -0700 | [diff] [blame] | 1608 | grpc_metadata_batch_is_empty( |
Craig Tiller | e6a448c | 2017-03-30 12:17:41 -0700 | [diff] [blame] | 1609 | op->payload->send_trailing_metadata.send_trailing_metadata) |
Craig Tiller | a58ed7c | 2016-05-11 10:55:18 -0700 | [diff] [blame] | 1610 | ? GRPC_ERROR_NONE |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1611 | : GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 1612 | "Attempt to send trailing metadata after " |
| 1613 | "stream was closed"), |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1614 | "send_trailing_metadata_finished"); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1615 | } else if (s->id != 0) { |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1616 | /* TODO(ctiller): check if there's flow control for any outstanding |
| 1617 | bytes before going writable */ |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1618 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 1619 | grpc_chttp2_initiate_write( |
| 1620 | exec_ctx, t, GRPC_CHTTP2_INITIATE_WRITE_SEND_TRAILING_METADATA); |
Mark D. Roth | ebbbce3 | 2016-05-02 09:54:04 -0700 | [diff] [blame] | 1621 | } |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1622 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 1623 | } |
Craig Tiller | 5dde66e | 2015-06-02 09:05:23 -0700 | [diff] [blame] | 1624 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1625 | if (op->recv_initial_metadata) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1626 | GRPC_STATS_INC_HTTP2_OP_RECV_INITIAL_METADATA(exec_ctx); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1627 | GPR_ASSERT(s->recv_initial_metadata_ready == NULL); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1628 | s->recv_initial_metadata_ready = |
| 1629 | op_payload->recv_initial_metadata.recv_initial_metadata_ready; |
| 1630 | s->recv_initial_metadata = |
| 1631 | op_payload->recv_initial_metadata.recv_initial_metadata; |
Mark D. Roth | bd3b93b | 2017-06-22 10:53:01 -0700 | [diff] [blame] | 1632 | s->trailing_metadata_available = |
| 1633 | op_payload->recv_initial_metadata.trailing_metadata_available; |
Mark D. Roth | 764cf04 | 2017-09-01 09:00:06 -0700 | [diff] [blame] | 1634 | if (op_payload->recv_initial_metadata.peer_string != NULL) { |
| 1635 | gpr_atm_rel_store(op_payload->recv_initial_metadata.peer_string, |
| 1636 | (gpr_atm)gpr_strdup(t->peer_string)); |
| 1637 | } |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1638 | grpc_chttp2_maybe_complete_recv_initial_metadata(exec_ctx, t, s); |
Craig Tiller | 5dde66e | 2015-06-02 09:05:23 -0700 | [diff] [blame] | 1639 | } |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1640 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1641 | if (op->recv_message) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1642 | GRPC_STATS_INC_HTTP2_OP_RECV_MESSAGE(exec_ctx); |
Muxi Yan | f036076 | 2017-04-12 20:37:40 -0700 | [diff] [blame] | 1643 | size_t already_received; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1644 | GPR_ASSERT(s->recv_message_ready == NULL); |
Muxi Yan | f036076 | 2017-04-12 20:37:40 -0700 | [diff] [blame] | 1645 | GPR_ASSERT(!s->pending_byte_stream); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1646 | s->recv_message_ready = op_payload->recv_message.recv_message_ready; |
| 1647 | s->recv_message = op_payload->recv_message.recv_message; |
Muxi Yan | dd47548 | 2017-04-13 08:54:22 -0700 | [diff] [blame] | 1648 | if (s->id != 0) { |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 1649 | if (!s->read_closed) { |
ncteisen | fb193a1 | 2017-07-28 15:47:32 -0700 | [diff] [blame] | 1650 | already_received = s->frame_storage.length; |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 1651 | grpc_chttp2_flowctl_incoming_bs_update( |
ncteisen | 8a46ba5 | 2017-08-01 10:59:10 -0700 | [diff] [blame] | 1652 | &t->flow_control, &s->flow_control, GRPC_HEADER_SIZE_IN_BYTES, |
| 1653 | already_received); |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 1654 | grpc_chttp2_act_on_flowctl_action( |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 1655 | exec_ctx, |
ncteisen | 00f74a9 | 2017-07-14 15:41:05 -0700 | [diff] [blame] | 1656 | grpc_chttp2_flowctl_get_action(&t->flow_control, &s->flow_control), |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 1657 | t, s); |
| 1658 | } |
Craig Tiller | c8b7013 | 2015-12-09 20:49:09 -0800 | [diff] [blame] | 1659 | } |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1660 | grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1661 | } |
| 1662 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1663 | if (op->recv_trailing_metadata) { |
Craig Tiller | 57bb9a9 | 2017-08-31 16:44:15 -0700 | [diff] [blame] | 1664 | GRPC_STATS_INC_HTTP2_OP_RECV_TRAILING_METADATA(exec_ctx); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1665 | GPR_ASSERT(s->recv_trailing_metadata_finished == NULL); |
| 1666 | s->recv_trailing_metadata_finished = add_closure_barrier(on_complete); |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1667 | s->recv_trailing_metadata = |
| 1668 | op_payload->recv_trailing_metadata.recv_trailing_metadata; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1669 | s->final_metadata_requested = true; |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1670 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1671 | } |
| 1672 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1673 | grpc_chttp2_complete_closure_step(exec_ctx, t, s, &on_complete, |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1674 | GRPC_ERROR_NONE, "op->on_complete"); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1675 | |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 1676 | GPR_TIMER_END("perform_stream_op_locked", 0); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1677 | GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "perform_stream_op"); |
Craig Tiller | 50d9db5 | 2015-04-23 10:52:14 -0700 | [diff] [blame] | 1678 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 1679 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1680 | static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
Craig Tiller | a0f3abd | 2017-03-31 15:42:16 -0700 | [diff] [blame] | 1681 | grpc_stream *gs, |
| 1682 | grpc_transport_stream_op_batch *op) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 1683 | GPR_TIMER_BEGIN("perform_stream_op", 0); |
Craig Tiller | b084d90 | 2015-06-12 07:50:02 -0700 | [diff] [blame] | 1684 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
Craig Tiller | c335919 | 2016-07-13 15:54:16 -0700 | [diff] [blame] | 1685 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; |
Craig Tiller | c8db73c | 2016-08-30 14:00:48 -0700 | [diff] [blame] | 1686 | |
Craig Tiller | 095a220 | 2017-05-17 09:02:44 -0700 | [diff] [blame] | 1687 | if (!t->is_client) { |
| 1688 | if (op->send_initial_metadata) { |
Craig Tiller | 7ffb723 | 2017-05-17 12:52:10 -0700 | [diff] [blame] | 1689 | gpr_timespec deadline = |
| 1690 | op->payload->send_initial_metadata.send_initial_metadata->deadline; |
| 1691 | GPR_ASSERT(0 == |
| 1692 | gpr_time_cmp(gpr_inf_future(deadline.clock_type), deadline)); |
Craig Tiller | 095a220 | 2017-05-17 09:02:44 -0700 | [diff] [blame] | 1693 | } |
| 1694 | if (op->send_trailing_metadata) { |
Craig Tiller | 7ffb723 | 2017-05-17 12:52:10 -0700 | [diff] [blame] | 1695 | gpr_timespec deadline = |
| 1696 | op->payload->send_trailing_metadata.send_trailing_metadata->deadline; |
| 1697 | GPR_ASSERT(0 == |
| 1698 | gpr_time_cmp(gpr_inf_future(deadline.clock_type), deadline)); |
Craig Tiller | 095a220 | 2017-05-17 09:02:44 -0700 | [diff] [blame] | 1699 | } |
| 1700 | } |
| 1701 | |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 1702 | if (GRPC_TRACER_ON(grpc_http_trace)) { |
Craig Tiller | a0f3abd | 2017-03-31 15:42:16 -0700 | [diff] [blame] | 1703 | char *str = grpc_transport_stream_op_batch_string(op); |
Craig Tiller | 9ba9f70 | 2017-05-04 08:17:30 -0700 | [diff] [blame] | 1704 | gpr_log(GPR_DEBUG, "perform_stream_op[s=%p]: %s", s, str); |
Craig Tiller | c8db73c | 2016-08-30 14:00:48 -0700 | [diff] [blame] | 1705 | gpr_free(str); |
| 1706 | } |
| 1707 | |
Craig Tiller | 9c1ec54 | 2017-03-02 08:42:54 -0800 | [diff] [blame] | 1708 | op->handler_private.extra_arg = gs; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1709 | GRPC_CHTTP2_STREAM_REF(s, "perform_stream_op"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1710 | GRPC_CLOSURE_SCHED( |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1711 | exec_ctx, |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1712 | GRPC_CLOSURE_INIT(&op->handler_private.closure, perform_stream_op_locked, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 1713 | op, grpc_combiner_scheduler(t->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 1714 | GRPC_ERROR_NONE); |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 1715 | GPR_TIMER_END("perform_stream_op", 0); |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 1716 | } |
| 1717 | |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 1718 | static void cancel_pings(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 1719 | grpc_error *error) { |
| 1720 | /* callback remaining pings: they're not allowed to call into the transpot, |
| 1721 | and maybe they hold resources that need to be freed */ |
Craig Tiller | ad2a11f | 2016-12-28 13:05:00 -0800 | [diff] [blame] | 1722 | for (size_t i = 0; i < GRPC_CHTTP2_PING_TYPE_COUNT; i++) { |
| 1723 | grpc_chttp2_ping_queue *pq = &t->ping_queues[i]; |
Craig Tiller | c0118b4 | 2016-12-29 12:17:57 -0800 | [diff] [blame] | 1724 | for (size_t j = 0; j < GRPC_CHTTP2_PCL_COUNT; j++) { |
| 1725 | grpc_closure_list_fail_all(&pq->lists[j], GRPC_ERROR_REF(error)); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1726 | GRPC_CLOSURE_LIST_SCHED(exec_ctx, &pq->lists[j]); |
Craig Tiller | c0118b4 | 2016-12-29 12:17:57 -0800 | [diff] [blame] | 1727 | } |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 1728 | } |
| 1729 | GRPC_ERROR_UNREF(error); |
| 1730 | } |
| 1731 | |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1732 | static void send_ping_locked( |
| 1733 | grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 1734 | grpc_chttp2_ping_type ping_type, grpc_closure *on_initiate, |
| 1735 | grpc_closure *on_ack, |
| 1736 | grpc_chttp2_initiate_write_reason initiate_write_reason) { |
Craig Tiller | ad2a11f | 2016-12-28 13:05:00 -0800 | [diff] [blame] | 1737 | grpc_chttp2_ping_queue *pq = &t->ping_queues[ping_type]; |
Craig Tiller | c0118b4 | 2016-12-29 12:17:57 -0800 | [diff] [blame] | 1738 | grpc_closure_list_append(&pq->lists[GRPC_CHTTP2_PCL_INITIATE], on_initiate, |
| 1739 | GRPC_ERROR_NONE); |
| 1740 | if (grpc_closure_list_append(&pq->lists[GRPC_CHTTP2_PCL_NEXT], on_ack, |
| 1741 | GRPC_ERROR_NONE)) { |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1742 | grpc_chttp2_initiate_write(exec_ctx, t, initiate_write_reason); |
Craig Tiller | ad2a11f | 2016-12-28 13:05:00 -0800 | [diff] [blame] | 1743 | } |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 1744 | } |
| 1745 | |
Yuchen Zeng | b4b6a0e | 2017-02-28 22:06:52 -0800 | [diff] [blame] | 1746 | static void retry_initiate_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 1747 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1748 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Yuchen Zeng | cbcdb40 | 2017-03-01 01:42:18 -0800 | [diff] [blame] | 1749 | t->ping_state.is_delayed_ping_timer_set = false; |
Yuchen Zeng | ad32075 | 2017-05-15 15:38:06 -0700 | [diff] [blame] | 1750 | if (error == GRPC_ERROR_NONE) { |
| 1751 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 1752 | GRPC_CHTTP2_INITIATE_WRITE_RETRY_SEND_PING); |
| 1753 | } |
Yuchen Zeng | b4b6a0e | 2017-02-28 22:06:52 -0800 | [diff] [blame] | 1754 | } |
| 1755 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 1756 | void grpc_chttp2_ack_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | ad2a11f | 2016-12-28 13:05:00 -0800 | [diff] [blame] | 1757 | uint64_t id) { |
| 1758 | grpc_chttp2_ping_queue *pq = |
| 1759 | &t->ping_queues[id % GRPC_CHTTP2_PING_TYPE_COUNT]; |
| 1760 | if (pq->inflight_id != id) { |
| 1761 | char *from = grpc_endpoint_get_peer(t->ep); |
| 1762 | gpr_log(GPR_DEBUG, "Unknown ping response from %s: %" PRIx64, from, id); |
| 1763 | gpr_free(from); |
| 1764 | return; |
Craig Tiller | 28bf891 | 2015-12-07 16:07:04 -0800 | [diff] [blame] | 1765 | } |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1766 | GRPC_CLOSURE_LIST_SCHED(exec_ctx, &pq->lists[GRPC_CHTTP2_PCL_INFLIGHT]); |
Craig Tiller | c0118b4 | 2016-12-29 12:17:57 -0800 | [diff] [blame] | 1767 | if (!grpc_closure_list_empty(pq->lists[GRPC_CHTTP2_PCL_NEXT])) { |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1768 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 1769 | GRPC_CHTTP2_INITIATE_WRITE_CONTINUE_PINGS); |
Craig Tiller | c0118b4 | 2016-12-29 12:17:57 -0800 | [diff] [blame] | 1770 | } |
Craig Tiller | 28bf891 | 2015-12-07 16:07:04 -0800 | [diff] [blame] | 1771 | } |
| 1772 | |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 1773 | static void send_goaway(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1774 | grpc_error *error) { |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 1775 | t->sent_goaway_state = GRPC_CHTTP2_GOAWAY_SEND_SCHEDULED; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1776 | grpc_http2_error_code http_error; |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 1777 | grpc_slice slice; |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 1778 | grpc_error_get_status(error, gpr_inf_future(GPR_CLOCK_MONOTONIC), NULL, |
| 1779 | &slice, &http_error); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1780 | grpc_chttp2_goaway_append(t->last_new_stream_id, (uint32_t)http_error, |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 1781 | grpc_slice_ref_internal(slice), &t->qbuf); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1782 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 1783 | GRPC_CHTTP2_INITIATE_WRITE_GOAWAY_SENT); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1784 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 1785 | } |
| 1786 | |
Yuchen Zeng | fe59341 | 2017-03-27 15:36:53 -0700 | [diff] [blame] | 1787 | void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx, |
| 1788 | grpc_chttp2_transport *t) { |
Yuchen Zeng | 114a848 | 2017-03-22 14:34:37 -0700 | [diff] [blame] | 1789 | gpr_log(GPR_DEBUG, "PING strike"); |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 1790 | if (++t->ping_recv_state.ping_strikes > t->ping_policy.max_ping_strikes && |
| 1791 | t->ping_policy.max_ping_strikes != 0) { |
| 1792 | send_goaway(exec_ctx, t, |
Yuchen Zeng | 78da250 | 2017-03-24 13:40:22 -0700 | [diff] [blame] | 1793 | grpc_error_set_int( |
| 1794 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("too_many_pings"), |
| 1795 | GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM)); |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 1796 | /*The transport will be closed after the write is done */ |
Yuchen Zeng | 78da250 | 2017-03-24 13:40:22 -0700 | [diff] [blame] | 1797 | close_transport_locked( |
| 1798 | exec_ctx, t, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many pings")); |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 1799 | } |
| 1800 | } |
| 1801 | |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 1802 | static void perform_transport_op_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 1803 | void *stream_op, |
| 1804 | grpc_error *error_ignored) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 1805 | grpc_transport_op *op = (grpc_transport_op *)stream_op; |
| 1806 | grpc_chttp2_transport *t = |
| 1807 | (grpc_chttp2_transport *)op->handler_private.extra_arg; |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1808 | grpc_error *close_transport = op->disconnect_with_error; |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 1809 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1810 | if (op->goaway_error) { |
| 1811 | send_goaway(exec_ctx, t, op->goaway_error); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1812 | } |
Craig Tiller | 1064f8b | 2015-06-25 13:52:57 -0700 | [diff] [blame] | 1813 | |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 1814 | if (op->set_accept_stream) { |
| 1815 | t->channel_callback.accept_stream = op->set_accept_stream_fn; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1816 | t->channel_callback.accept_stream_user_data = |
| 1817 | op->set_accept_stream_user_data; |
| 1818 | } |
Craig Tiller | 1064f8b | 2015-06-25 13:52:57 -0700 | [diff] [blame] | 1819 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1820 | if (op->bind_pollset) { |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 1821 | grpc_endpoint_add_to_pollset(exec_ctx, t->ep, op->bind_pollset); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1822 | } |
Craig Tiller | 1064f8b | 2015-06-25 13:52:57 -0700 | [diff] [blame] | 1823 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1824 | if (op->bind_pollset_set) { |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 1825 | grpc_endpoint_add_to_pollset_set(exec_ctx, t->ep, op->bind_pollset_set); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1826 | } |
Craig Tiller | 1ada6ad | 2015-07-16 16:19:14 -0700 | [diff] [blame] | 1827 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1828 | if (op->send_ping) { |
Craig Tiller | ad2a11f | 2016-12-28 13:05:00 -0800 | [diff] [blame] | 1829 | send_ping_locked(exec_ctx, t, GRPC_CHTTP2_PING_ON_NEXT_WRITE, NULL, |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 1830 | op->send_ping, |
| 1831 | GRPC_CHTTP2_INITIATE_WRITE_APPLICATION_PING); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1832 | } |
Craig Tiller | 1064f8b | 2015-06-25 13:52:57 -0700 | [diff] [blame] | 1833 | |
Craig Tiller | f7c8c9f | 2017-05-17 15:22:05 -0700 | [diff] [blame] | 1834 | if (op->on_connectivity_state_change != NULL) { |
| 1835 | grpc_connectivity_state_notify_on_state_change( |
| 1836 | exec_ctx, &t->channel_callback.state_tracker, op->connectivity_state, |
| 1837 | op->on_connectivity_state_change); |
| 1838 | } |
| 1839 | |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1840 | if (close_transport != GRPC_ERROR_NONE) { |
| 1841 | close_transport_locked(exec_ctx, t, close_transport); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1842 | } |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 1843 | |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1844 | GRPC_CLOSURE_RUN(exec_ctx, op->on_consumed, GRPC_ERROR_NONE); |
Craig Tiller | c335919 | 2016-07-13 15:54:16 -0700 | [diff] [blame] | 1845 | |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 1846 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "transport_op"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1847 | } |
| 1848 | |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 1849 | static void perform_transport_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
| 1850 | grpc_transport_op *op) { |
| 1851 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
Craig Tiller | e194ff0 | 2016-08-29 15:48:41 -0700 | [diff] [blame] | 1852 | char *msg = grpc_transport_op_string(op); |
Craig Tiller | e194ff0 | 2016-08-29 15:48:41 -0700 | [diff] [blame] | 1853 | gpr_free(msg); |
Craig Tiller | c55c102 | 2017-03-10 10:26:42 -0800 | [diff] [blame] | 1854 | op->handler_private.extra_arg = gt; |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 1855 | GRPC_CHTTP2_REF_TRANSPORT(t, "transport_op"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 1856 | GRPC_CLOSURE_SCHED(exec_ctx, |
| 1857 | GRPC_CLOSURE_INIT(&op->handler_private.closure, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 1858 | perform_transport_op_locked, op, |
| 1859 | grpc_combiner_scheduler(t->combiner)), |
| 1860 | GRPC_ERROR_NONE); |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 1861 | } |
| 1862 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 1863 | /******************************************************************************* |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 1864 | * INPUT PROCESSING - GENERAL |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1865 | */ |
| 1866 | |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1867 | void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx *exec_ctx, |
| 1868 | grpc_chttp2_transport *t, |
| 1869 | grpc_chttp2_stream *s) { |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1870 | if (s->recv_initial_metadata_ready != NULL && |
| 1871 | s->published_metadata[0] != GRPC_METADATA_NOT_PUBLISHED) { |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1872 | if (s->seen_error) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1873 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); |
| 1874 | if (!s->pending_byte_stream) { |
| 1875 | grpc_slice_buffer_reset_and_unref_internal( |
| 1876 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
yang-g | ad0df7b | 2016-02-22 10:00:20 -0800 | [diff] [blame] | 1877 | } |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1878 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 1879 | grpc_chttp2_incoming_metadata_buffer_publish( |
| 1880 | exec_ctx, &s->metadata_buffer[0], s->recv_initial_metadata); |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1881 | null_then_run_closure(exec_ctx, &s->recv_initial_metadata_ready, |
| 1882 | GRPC_ERROR_NONE); |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1883 | } |
| 1884 | } |
| 1885 | |
| 1886 | void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, |
| 1887 | grpc_chttp2_transport *t, |
| 1888 | grpc_chttp2_stream *s) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1889 | grpc_error *error = GRPC_ERROR_NONE; |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1890 | if (s->recv_message_ready != NULL) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1891 | *s->recv_message = NULL; |
| 1892 | if (s->final_metadata_requested && s->seen_error) { |
| 1893 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); |
| 1894 | if (!s->pending_byte_stream) { |
| 1895 | grpc_slice_buffer_reset_and_unref_internal( |
| 1896 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
| 1897 | } |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1898 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1899 | if (!s->pending_byte_stream) { |
| 1900 | while (s->unprocessed_incoming_frames_buffer.length > 0 || |
| 1901 | s->frame_storage.length > 0) { |
| 1902 | if (s->unprocessed_incoming_frames_buffer.length == 0) { |
| 1903 | grpc_slice_buffer_swap(&s->unprocessed_incoming_frames_buffer, |
| 1904 | &s->frame_storage); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1905 | s->unprocessed_incoming_frames_decompressed = false; |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1906 | } |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1907 | if (s->stream_compression_recv_enabled && |
| 1908 | !s->unprocessed_incoming_frames_decompressed) { |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 1909 | GPR_ASSERT(s->decompressed_data_buffer->length == 0); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1910 | bool end_of_context; |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1911 | if (!s->stream_decompression_ctx) { |
| 1912 | s->stream_decompression_ctx = |
| 1913 | grpc_stream_compression_context_create( |
| 1914 | GRPC_STREAM_COMPRESSION_DECOMPRESS); |
| 1915 | } |
| 1916 | if (!grpc_stream_decompress(s->stream_decompression_ctx, |
| 1917 | &s->unprocessed_incoming_frames_buffer, |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 1918 | s->decompressed_data_buffer, NULL, |
Muxi Yan | f20bfaa | 2017-07-19 16:27:02 -0700 | [diff] [blame] | 1919 | GRPC_HEADER_SIZE_IN_BYTES, |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1920 | &end_of_context)) { |
| 1921 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, |
| 1922 | &s->frame_storage); |
| 1923 | grpc_slice_buffer_reset_and_unref_internal( |
| 1924 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
Muxi Yan | 26b33de | 2017-07-17 15:15:53 -0700 | [diff] [blame] | 1925 | error = GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 1926 | "Stream decompression error."); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1927 | } else { |
| 1928 | error = grpc_deframe_unprocessed_incoming_frames( |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 1929 | exec_ctx, &s->data_parser, s, s->decompressed_data_buffer, NULL, |
| 1930 | s->recv_message); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 1931 | if (end_of_context) { |
| 1932 | grpc_stream_compression_context_destroy( |
| 1933 | s->stream_decompression_ctx); |
| 1934 | s->stream_decompression_ctx = NULL; |
| 1935 | } |
| 1936 | } |
| 1937 | } else { |
| 1938 | error = grpc_deframe_unprocessed_incoming_frames( |
| 1939 | exec_ctx, &s->data_parser, s, |
| 1940 | &s->unprocessed_incoming_frames_buffer, NULL, s->recv_message); |
| 1941 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1942 | if (error != GRPC_ERROR_NONE) { |
| 1943 | s->seen_error = true; |
| 1944 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, |
| 1945 | &s->frame_storage); |
| 1946 | grpc_slice_buffer_reset_and_unref_internal( |
| 1947 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
| 1948 | break; |
| 1949 | } else if (*s->recv_message != NULL) { |
| 1950 | break; |
| 1951 | } |
| 1952 | } |
| 1953 | } |
| 1954 | if (error == GRPC_ERROR_NONE && *s->recv_message != NULL) { |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1955 | null_then_run_closure(exec_ctx, &s->recv_message_ready, GRPC_ERROR_NONE); |
| 1956 | } else if (s->published_metadata[1] != GRPC_METADATA_NOT_PUBLISHED) { |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1957 | *s->recv_message = NULL; |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 1958 | null_then_run_closure(exec_ctx, &s->recv_message_ready, GRPC_ERROR_NONE); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1959 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1960 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 1961 | } |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1962 | } |
| 1963 | |
| 1964 | void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, |
| 1965 | grpc_chttp2_transport *t, |
| 1966 | grpc_chttp2_stream *s) { |
Craig Tiller | 15b0ac0 | 2016-09-01 17:14:00 -0700 | [diff] [blame] | 1967 | grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1968 | if (s->recv_trailing_metadata_finished != NULL && s->read_closed && |
| 1969 | s->write_closed) { |
| 1970 | if (s->seen_error) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1971 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); |
| 1972 | if (!s->pending_byte_stream) { |
| 1973 | grpc_slice_buffer_reset_and_unref_internal( |
| 1974 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 1975 | } |
| 1976 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 1977 | bool pending_data = s->pending_byte_stream || |
| 1978 | s->unprocessed_incoming_frames_buffer.length > 0; |
Muxi Yan | 0fd37e1 | 2017-07-13 21:07:29 -0700 | [diff] [blame] | 1979 | if (s->stream_compression_recv_enabled && s->read_closed && |
Muxi Yan | 458214f | 2017-08-07 11:49:26 -0700 | [diff] [blame] | 1980 | s->frame_storage.length > 0 && !pending_data && !s->seen_error && |
| 1981 | s->recv_trailing_metadata_finished != NULL) { |
Muxi Yan | 0fd37e1 | 2017-07-13 21:07:29 -0700 | [diff] [blame] | 1982 | /* Maybe some SYNC_FLUSH data is left in frame_storage. Consume them and |
| 1983 | * maybe decompress the next 5 bytes in the stream. */ |
| 1984 | bool end_of_context; |
| 1985 | if (!s->stream_decompression_ctx) { |
Muxi Yan | 26b33de | 2017-07-17 15:15:53 -0700 | [diff] [blame] | 1986 | s->stream_decompression_ctx = grpc_stream_compression_context_create( |
| 1987 | GRPC_STREAM_COMPRESSION_DECOMPRESS); |
Muxi Yan | 0fd37e1 | 2017-07-13 21:07:29 -0700 | [diff] [blame] | 1988 | } |
| 1989 | if (!grpc_stream_decompress(s->stream_decompression_ctx, |
| 1990 | &s->frame_storage, |
Muxi Yan | 26b33de | 2017-07-17 15:15:53 -0700 | [diff] [blame] | 1991 | &s->unprocessed_incoming_frames_buffer, NULL, |
Muxi Yan | f20bfaa | 2017-07-19 16:27:02 -0700 | [diff] [blame] | 1992 | GRPC_HEADER_SIZE_IN_BYTES, &end_of_context)) { |
Muxi Yan | 26b33de | 2017-07-17 15:15:53 -0700 | [diff] [blame] | 1993 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); |
Muxi Yan | 0fd37e1 | 2017-07-13 21:07:29 -0700 | [diff] [blame] | 1994 | grpc_slice_buffer_reset_and_unref_internal( |
| 1995 | exec_ctx, &s->unprocessed_incoming_frames_buffer); |
| 1996 | s->seen_error = true; |
| 1997 | } else { |
| 1998 | if (s->unprocessed_incoming_frames_buffer.length > 0) { |
| 1999 | s->unprocessed_incoming_frames_decompressed = true; |
| 2000 | } |
| 2001 | if (end_of_context) { |
| 2002 | grpc_stream_compression_context_destroy(s->stream_decompression_ctx); |
| 2003 | s->stream_decompression_ctx = NULL; |
| 2004 | } |
| 2005 | } |
| 2006 | } |
Mark D. Roth | 764cf04 | 2017-09-01 09:00:06 -0700 | [diff] [blame] | 2007 | if (s->read_closed && s->frame_storage.length == 0 && !pending_data && |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2008 | s->recv_trailing_metadata_finished != NULL) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2009 | grpc_chttp2_incoming_metadata_buffer_publish( |
| 2010 | exec_ctx, &s->metadata_buffer[1], s->recv_trailing_metadata); |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 2011 | grpc_chttp2_complete_closure_step( |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2012 | exec_ctx, t, s, &s->recv_trailing_metadata_finished, GRPC_ERROR_NONE, |
| 2013 | "recv_trailing_metadata_finished"); |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 2014 | } |
| 2015 | } |
Craig Tiller | f73fcd1 | 2015-06-16 16:25:26 -0700 | [diff] [blame] | 2016 | } |
| 2017 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2018 | static void remove_stream(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | 692bb33 | 2016-05-13 11:02:49 -0700 | [diff] [blame] | 2019 | uint32_t id, grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2020 | grpc_chttp2_stream *s = |
| 2021 | (grpc_chttp2_stream *)grpc_chttp2_stream_map_delete(&t->stream_map, id); |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 2022 | GPR_ASSERT(s); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2023 | if (t->incoming_stream == s) { |
| 2024 | t->incoming_stream = NULL; |
| 2025 | grpc_chttp2_parsing_become_skip_parser(exec_ctx, t); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2026 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2027 | if (s->pending_byte_stream) { |
| 2028 | if (s->on_next != NULL) { |
| 2029 | grpc_chttp2_incoming_byte_stream *bs = s->data_parser.parsing_frame; |
| 2030 | if (error == GRPC_ERROR_NONE) { |
| 2031 | error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); |
| 2032 | } |
| 2033 | incoming_byte_stream_publish_error(exec_ctx, bs, error); |
| 2034 | incoming_byte_stream_unref(exec_ctx, bs); |
| 2035 | s->data_parser.parsing_frame = NULL; |
| 2036 | } else { |
| 2037 | GRPC_ERROR_UNREF(s->byte_stream_error); |
| 2038 | s->byte_stream_error = GRPC_ERROR_REF(error); |
| 2039 | } |
Craig Tiller | 66abdaa | 2015-06-17 08:00:39 -0700 | [diff] [blame] | 2040 | } |
Craig Tiller | 8823b14 | 2015-06-18 11:41:24 -0700 | [diff] [blame] | 2041 | |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 2042 | if (grpc_chttp2_stream_map_size(&t->stream_map) == 0) { |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 2043 | post_benign_reclaimer(exec_ctx, t); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 2044 | if (t->sent_goaway_state == GRPC_CHTTP2_GOAWAY_SENT) { |
| 2045 | close_transport_locked( |
| 2046 | exec_ctx, t, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2047 | GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 2048 | "Last stream closed after sending GOAWAY", &error, 1)); |
| 2049 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2050 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2051 | if (grpc_chttp2_list_remove_writable_stream(t, s)) { |
Craig Tiller | fd4c647 | 2016-09-06 20:03:06 -0700 | [diff] [blame] | 2052 | GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "chttp2_writing:remove_stream"); |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 2053 | } |
Craig Tiller | 8823b14 | 2015-06-18 11:41:24 -0700 | [diff] [blame] | 2054 | |
Craig Tiller | 692bb33 | 2016-05-13 11:02:49 -0700 | [diff] [blame] | 2055 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 796f525 | 2016-08-19 10:44:48 -0700 | [diff] [blame] | 2056 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2057 | maybe_start_some_streams(exec_ctx, t); |
Craig Tiller | 759eb32 | 2015-06-16 22:41:18 -0700 | [diff] [blame] | 2058 | } |
| 2059 | |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 2060 | void grpc_chttp2_cancel_stream(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2061 | grpc_chttp2_transport *t, grpc_chttp2_stream *s, |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 2062 | grpc_error *due_to_error) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2063 | if (!t->is_client && !s->sent_trailing_metadata && |
| 2064 | grpc_error_has_clear_grpc_status(due_to_error)) { |
| 2065 | close_from_api(exec_ctx, t, s, due_to_error); |
| 2066 | return; |
| 2067 | } |
Craig Tiller | 5e01e2a | 2017-01-20 18:11:52 -0800 | [diff] [blame] | 2068 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2069 | if (!s->read_closed || !s->write_closed) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2070 | if (s->id != 0) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2071 | grpc_http2_error_code http_error; |
| 2072 | grpc_error_get_status(due_to_error, s->deadline, NULL, NULL, &http_error); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 2073 | grpc_slice_buffer_add( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2074 | &t->qbuf, grpc_chttp2_rst_stream_create(s->id, (uint32_t)http_error, |
| 2075 | &s->stats.outgoing)); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2076 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 2077 | GRPC_CHTTP2_INITIATE_WRITE_RST_STREAM); |
Craig Tiller | c48ca71 | 2016-04-04 13:42:04 -0700 | [diff] [blame] | 2078 | } |
Craig Tiller | b787c50 | 2015-06-15 16:14:52 -0700 | [diff] [blame] | 2079 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2080 | if (due_to_error != GRPC_ERROR_NONE && !s->seen_error) { |
| 2081 | s->seen_error = true; |
Craig Tiller | b27c0f8 | 2016-04-11 22:37:22 -0700 | [diff] [blame] | 2082 | } |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2083 | grpc_chttp2_mark_stream_closed(exec_ctx, t, s, 1, 1, due_to_error); |
Craig Tiller | b787c50 | 2015-06-15 16:14:52 -0700 | [diff] [blame] | 2084 | } |
| 2085 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2086 | void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2087 | grpc_chttp2_stream *s, grpc_error *error) { |
| 2088 | grpc_status_code status; |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2089 | grpc_slice slice; |
| 2090 | grpc_error_get_status(error, s->deadline, &status, &slice, NULL); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2091 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2092 | if (status != GRPC_STATUS_OK) { |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2093 | s->seen_error = true; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2094 | } |
Craig Tiller | 4b65b1d | 2015-11-03 07:04:30 -0800 | [diff] [blame] | 2095 | /* stream_global->recv_trailing_metadata_finished gives us a |
| 2096 | last chance replacement: we've received trailing metadata, |
| 2097 | but something more important has become available to signal |
| 2098 | to the upper layers - drop what we've got, and then publish |
| 2099 | what we want - which is safe because we haven't told anyone |
| 2100 | about the metadata yet */ |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2101 | if (s->published_metadata[1] == GRPC_METADATA_NOT_PUBLISHED || |
| 2102 | s->recv_trailing_metadata_finished != NULL) { |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2103 | char status_string[GPR_LTOA_MIN_BUFSIZE]; |
| 2104 | gpr_ltoa(status, status_string); |
Craig Tiller | 7d2c398 | 2017-03-13 12:58:29 -0700 | [diff] [blame] | 2105 | GRPC_LOG_IF_ERROR("add_status", |
| 2106 | grpc_chttp2_incoming_metadata_buffer_replace_or_add( |
| 2107 | exec_ctx, &s->metadata_buffer[1], |
| 2108 | grpc_mdelem_from_slices( |
| 2109 | exec_ctx, GRPC_MDSTR_GRPC_STATUS, |
| 2110 | grpc_slice_from_copied_string(status_string)))); |
Noah Eisen | 3d194ad | 2017-03-22 14:34:42 -0700 | [diff] [blame] | 2111 | if (!GRPC_SLICE_IS_EMPTY(slice)) { |
Craig Tiller | 7d2c398 | 2017-03-13 12:58:29 -0700 | [diff] [blame] | 2112 | GRPC_LOG_IF_ERROR( |
| 2113 | "add_status_message", |
| 2114 | grpc_chttp2_incoming_metadata_buffer_replace_or_add( |
| 2115 | exec_ctx, &s->metadata_buffer[1], |
| 2116 | grpc_mdelem_from_slices(exec_ctx, GRPC_MDSTR_GRPC_MESSAGE, |
Noah Eisen | 3d194ad | 2017-03-22 14:34:42 -0700 | [diff] [blame] | 2117 | grpc_slice_ref_internal(slice)))); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2118 | } |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2119 | s->published_metadata[1] = GRPC_METADATA_SYNTHESIZED_FROM_FAKE; |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 2120 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2121 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2122 | |
| 2123 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2124 | } |
| 2125 | |
Craig Tiller | 4ebfe90 | 2016-07-06 16:24:45 -0700 | [diff] [blame] | 2126 | static void add_error(grpc_error *error, grpc_error **refs, size_t *nrefs) { |
| 2127 | if (error == GRPC_ERROR_NONE) return; |
| 2128 | for (size_t i = 0; i < *nrefs; i++) { |
| 2129 | if (error == refs[i]) { |
| 2130 | return; |
| 2131 | } |
| 2132 | } |
| 2133 | refs[*nrefs] = error; |
| 2134 | ++*nrefs; |
| 2135 | } |
| 2136 | |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 2137 | static grpc_error *removal_error(grpc_error *extra_error, grpc_chttp2_stream *s, |
| 2138 | const char *master_error_msg) { |
Craig Tiller | 4ebfe90 | 2016-07-06 16:24:45 -0700 | [diff] [blame] | 2139 | grpc_error *refs[3]; |
| 2140 | size_t nrefs = 0; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2141 | add_error(s->read_closed_error, refs, &nrefs); |
| 2142 | add_error(s->write_closed_error, refs, &nrefs); |
Craig Tiller | 4ebfe90 | 2016-07-06 16:24:45 -0700 | [diff] [blame] | 2143 | add_error(extra_error, refs, &nrefs); |
| 2144 | grpc_error *error = GRPC_ERROR_NONE; |
| 2145 | if (nrefs > 0) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2146 | error = GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING(master_error_msg, |
| 2147 | refs, nrefs); |
Craig Tiller | 4ebfe90 | 2016-07-06 16:24:45 -0700 | [diff] [blame] | 2148 | } |
| 2149 | GRPC_ERROR_UNREF(extra_error); |
| 2150 | return error; |
| 2151 | } |
| 2152 | |
Craig Tiller | e9a7665 | 2017-05-12 13:17:14 -0700 | [diff] [blame] | 2153 | static void flush_write_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 2154 | grpc_chttp2_stream *s, grpc_chttp2_write_cb **list, |
| 2155 | grpc_error *error) { |
| 2156 | while (*list) { |
| 2157 | grpc_chttp2_write_cb *cb = *list; |
| 2158 | *list = cb->next; |
| 2159 | grpc_chttp2_complete_closure_step(exec_ctx, t, s, &cb->closure, |
| 2160 | GRPC_ERROR_REF(error), |
| 2161 | "on_write_finished_cb"); |
| 2162 | cb->next = t->write_cb_pool; |
| 2163 | t->write_cb_pool = cb; |
| 2164 | } |
| 2165 | GRPC_ERROR_UNREF(error); |
| 2166 | } |
| 2167 | |
Craig Tiller | ac88ca1 | 2016-11-16 14:21:29 -0800 | [diff] [blame] | 2168 | void grpc_chttp2_fail_pending_writes(grpc_exec_ctx *exec_ctx, |
| 2169 | grpc_chttp2_transport *t, |
| 2170 | grpc_chttp2_stream *s, grpc_error *error) { |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 2171 | error = |
| 2172 | removal_error(error, s, "Pending writes failed due to stream closure"); |
David Garcia Quintas | ed2f308 | 2016-11-10 18:41:52 -0800 | [diff] [blame] | 2173 | s->send_initial_metadata = NULL; |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2174 | grpc_chttp2_complete_closure_step( |
| 2175 | exec_ctx, t, s, &s->send_initial_metadata_finished, GRPC_ERROR_REF(error), |
| 2176 | "send_initial_metadata_finished"); |
David Garcia Quintas | ed2f308 | 2016-11-10 18:41:52 -0800 | [diff] [blame] | 2177 | |
| 2178 | s->send_trailing_metadata = NULL; |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2179 | grpc_chttp2_complete_closure_step( |
| 2180 | exec_ctx, t, s, &s->send_trailing_metadata_finished, |
| 2181 | GRPC_ERROR_REF(error), "send_trailing_metadata_finished"); |
David Garcia Quintas | ed2f308 | 2016-11-10 18:41:52 -0800 | [diff] [blame] | 2182 | |
| 2183 | s->fetching_send_message = NULL; |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2184 | grpc_chttp2_complete_closure_step( |
| 2185 | exec_ctx, t, s, &s->fetching_send_message_finished, GRPC_ERROR_REF(error), |
| 2186 | "fetching_send_message_finished"); |
Craig Tiller | e9a7665 | 2017-05-12 13:17:14 -0700 | [diff] [blame] | 2187 | flush_write_list(exec_ctx, t, s, &s->on_write_finished_cbs, |
| 2188 | GRPC_ERROR_REF(error)); |
| 2189 | flush_write_list(exec_ctx, t, s, &s->on_flow_controlled_cbs, error); |
Craig Tiller | abb2e3d | 2015-12-15 06:23:59 -0800 | [diff] [blame] | 2190 | } |
| 2191 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2192 | void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx, |
| 2193 | grpc_chttp2_transport *t, |
| 2194 | grpc_chttp2_stream *s, int close_reads, |
| 2195 | int close_writes, grpc_error *error) { |
| 2196 | if (s->read_closed && s->write_closed) { |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2197 | /* already closed */ |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2198 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); |
Craig Tiller | f707d62 | 2016-05-06 14:26:12 -0700 | [diff] [blame] | 2199 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2200 | return; |
| 2201 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2202 | bool closed_read = false; |
| 2203 | bool became_closed = false; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2204 | if (close_reads && !s->read_closed) { |
| 2205 | s->read_closed_error = GRPC_ERROR_REF(error); |
| 2206 | s->read_closed = true; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2207 | closed_read = true; |
| 2208 | } |
| 2209 | if (close_writes && !s->write_closed) { |
| 2210 | s->write_closed_error = GRPC_ERROR_REF(error); |
| 2211 | s->write_closed = true; |
| 2212 | grpc_chttp2_fail_pending_writes(exec_ctx, t, s, GRPC_ERROR_REF(error)); |
| 2213 | } |
| 2214 | if (s->read_closed && s->write_closed) { |
| 2215 | became_closed = true; |
| 2216 | grpc_error *overall_error = |
| 2217 | removal_error(GRPC_ERROR_REF(error), s, "Stream removed"); |
| 2218 | if (s->id != 0) { |
| 2219 | remove_stream(exec_ctx, t, s->id, GRPC_ERROR_REF(overall_error)); |
| 2220 | } else { |
| 2221 | /* Purge streams waiting on concurrency still waiting for id assignment */ |
| 2222 | grpc_chttp2_list_remove_waiting_for_concurrency(t, s); |
| 2223 | } |
| 2224 | if (overall_error != GRPC_ERROR_NONE) { |
| 2225 | grpc_chttp2_fake_status(exec_ctx, t, s, overall_error); |
| 2226 | } |
| 2227 | } |
| 2228 | if (closed_read) { |
Craig Tiller | bd37a21 | 2016-09-07 11:28:56 -0700 | [diff] [blame] | 2229 | for (int i = 0; i < 2; i++) { |
| 2230 | if (s->published_metadata[i] == GRPC_METADATA_NOT_PUBLISHED) { |
| 2231 | s->published_metadata[i] = GPRC_METADATA_PUBLISHED_AT_CLOSE; |
| 2232 | } |
| 2233 | } |
Craig Tiller | eccf510 | 2016-09-01 15:31:58 -0700 | [diff] [blame] | 2234 | grpc_chttp2_maybe_complete_recv_initial_metadata(exec_ctx, t, s); |
| 2235 | grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); |
Craig Tiller | 5e01e2a | 2017-01-20 18:11:52 -0800 | [diff] [blame] | 2236 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2237 | if (became_closed) { |
Craig Tiller | 5e01e2a | 2017-01-20 18:11:52 -0800 | [diff] [blame] | 2238 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2239 | GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "chttp2"); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2240 | } |
Craig Tiller | f707d62 | 2016-05-06 14:26:12 -0700 | [diff] [blame] | 2241 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2242 | } |
| 2243 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2244 | static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 2245 | grpc_chttp2_stream *s, grpc_error *error) { |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 2246 | grpc_slice hdr; |
| 2247 | grpc_slice status_hdr; |
Muxi Yan | 3c3093c | 2017-03-17 14:36:01 -0700 | [diff] [blame] | 2248 | grpc_slice http_status_hdr; |
Muxi Yan | 48cba2a | 2017-04-10 17:08:01 -0700 | [diff] [blame] | 2249 | grpc_slice content_type_hdr; |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 2250 | grpc_slice message_pfx; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 2251 | uint8_t *p; |
| 2252 | uint32_t len = 0; |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2253 | grpc_status_code grpc_status; |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2254 | grpc_slice slice; |
| 2255 | grpc_error_get_status(error, s->deadline, &grpc_status, &slice, NULL); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 2256 | |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2257 | GPR_ASSERT(grpc_status >= 0 && (int)grpc_status < 100); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 2258 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2259 | /* Hand roll a header block. |
| 2260 | This is unnecessarily ugly - at some point we should find a more |
| 2261 | elegant solution. |
| 2262 | It's complicated by the fact that our send machinery would be dead by |
| 2263 | the time we got around to sending this, so instead we ignore HPACK |
| 2264 | compression and just write the uncompressed bytes onto the wire. */ |
Muxi Yan | 3c3093c | 2017-03-17 14:36:01 -0700 | [diff] [blame] | 2265 | if (!s->sent_initial_metadata) { |
Craig Tiller | 423d6fd | 2017-04-12 13:15:45 -0700 | [diff] [blame] | 2266 | http_status_hdr = GRPC_SLICE_MALLOC(13); |
Muxi Yan | 3c3093c | 2017-03-17 14:36:01 -0700 | [diff] [blame] | 2267 | p = GRPC_SLICE_START_PTR(http_status_hdr); |
| 2268 | *p++ = 0x00; |
| 2269 | *p++ = 7; |
| 2270 | *p++ = ':'; |
| 2271 | *p++ = 's'; |
| 2272 | *p++ = 't'; |
| 2273 | *p++ = 'a'; |
| 2274 | *p++ = 't'; |
| 2275 | *p++ = 'u'; |
| 2276 | *p++ = 's'; |
| 2277 | *p++ = 3; |
| 2278 | *p++ = '2'; |
| 2279 | *p++ = '0'; |
| 2280 | *p++ = '0'; |
| 2281 | GPR_ASSERT(p == GRPC_SLICE_END_PTR(http_status_hdr)); |
| 2282 | len += (uint32_t)GRPC_SLICE_LENGTH(http_status_hdr); |
Muxi Yan | 48cba2a | 2017-04-10 17:08:01 -0700 | [diff] [blame] | 2283 | |
Craig Tiller | c39fbcf | 2017-04-17 08:20:25 -0700 | [diff] [blame] | 2284 | content_type_hdr = GRPC_SLICE_MALLOC(31); |
Muxi Yan | 48cba2a | 2017-04-10 17:08:01 -0700 | [diff] [blame] | 2285 | p = GRPC_SLICE_START_PTR(content_type_hdr); |
| 2286 | *p++ = 0x00; |
| 2287 | *p++ = 12; |
| 2288 | *p++ = 'c'; |
| 2289 | *p++ = 'o'; |
| 2290 | *p++ = 'n'; |
| 2291 | *p++ = 't'; |
| 2292 | *p++ = 'e'; |
| 2293 | *p++ = 'n'; |
| 2294 | *p++ = 't'; |
| 2295 | *p++ = '-'; |
| 2296 | *p++ = 't'; |
| 2297 | *p++ = 'y'; |
| 2298 | *p++ = 'p'; |
| 2299 | *p++ = 'e'; |
| 2300 | *p++ = 16; |
| 2301 | *p++ = 'a'; |
| 2302 | *p++ = 'p'; |
| 2303 | *p++ = 'p'; |
| 2304 | *p++ = 'l'; |
| 2305 | *p++ = 'i'; |
| 2306 | *p++ = 'c'; |
| 2307 | *p++ = 'a'; |
| 2308 | *p++ = 't'; |
| 2309 | *p++ = 'i'; |
| 2310 | *p++ = 'o'; |
| 2311 | *p++ = 'n'; |
| 2312 | *p++ = '/'; |
| 2313 | *p++ = 'g'; |
| 2314 | *p++ = 'r'; |
| 2315 | *p++ = 'p'; |
| 2316 | *p++ = 'c'; |
| 2317 | GPR_ASSERT(p == GRPC_SLICE_END_PTR(content_type_hdr)); |
| 2318 | len += (uint32_t)GRPC_SLICE_LENGTH(content_type_hdr); |
Muxi Yan | 3c3093c | 2017-03-17 14:36:01 -0700 | [diff] [blame] | 2319 | } |
| 2320 | |
Craig Tiller | 423d6fd | 2017-04-12 13:15:45 -0700 | [diff] [blame] | 2321 | status_hdr = GRPC_SLICE_MALLOC(15 + (grpc_status >= 10)); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2322 | p = GRPC_SLICE_START_PTR(status_hdr); |
| 2323 | *p++ = 0x00; /* literal header, not indexed */ |
| 2324 | *p++ = 11; /* len(grpc-status) */ |
| 2325 | *p++ = 'g'; |
| 2326 | *p++ = 'r'; |
| 2327 | *p++ = 'p'; |
| 2328 | *p++ = 'c'; |
| 2329 | *p++ = '-'; |
| 2330 | *p++ = 's'; |
| 2331 | *p++ = 't'; |
| 2332 | *p++ = 'a'; |
| 2333 | *p++ = 't'; |
| 2334 | *p++ = 'u'; |
| 2335 | *p++ = 's'; |
| 2336 | if (grpc_status < 10) { |
| 2337 | *p++ = 1; |
| 2338 | *p++ = (uint8_t)('0' + grpc_status); |
| 2339 | } else { |
| 2340 | *p++ = 2; |
| 2341 | *p++ = (uint8_t)('0' + (grpc_status / 10)); |
| 2342 | *p++ = (uint8_t)('0' + (grpc_status % 10)); |
| 2343 | } |
| 2344 | GPR_ASSERT(p == GRPC_SLICE_END_PTR(status_hdr)); |
| 2345 | len += (uint32_t)GRPC_SLICE_LENGTH(status_hdr); |
| 2346 | |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2347 | size_t msg_len = GRPC_SLICE_LENGTH(slice); |
| 2348 | GPR_ASSERT(msg_len <= UINT32_MAX); |
yang-g | a8a5690 | 2017-03-23 14:07:28 -0700 | [diff] [blame] | 2349 | uint32_t msg_len_len = GRPC_CHTTP2_VARINT_LENGTH((uint32_t)msg_len, 1); |
Craig Tiller | 423d6fd | 2017-04-12 13:15:45 -0700 | [diff] [blame] | 2350 | message_pfx = GRPC_SLICE_MALLOC(14 + msg_len_len); |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2351 | p = GRPC_SLICE_START_PTR(message_pfx); |
| 2352 | *p++ = 0x00; /* literal header, not indexed */ |
| 2353 | *p++ = 12; /* len(grpc-message) */ |
| 2354 | *p++ = 'g'; |
| 2355 | *p++ = 'r'; |
| 2356 | *p++ = 'p'; |
| 2357 | *p++ = 'c'; |
| 2358 | *p++ = '-'; |
| 2359 | *p++ = 'm'; |
| 2360 | *p++ = 'e'; |
| 2361 | *p++ = 's'; |
| 2362 | *p++ = 's'; |
| 2363 | *p++ = 'a'; |
| 2364 | *p++ = 'g'; |
| 2365 | *p++ = 'e'; |
yang-g | a8a5690 | 2017-03-23 14:07:28 -0700 | [diff] [blame] | 2366 | GRPC_CHTTP2_WRITE_VARINT((uint32_t)msg_len, 1, 0, p, (uint32_t)msg_len_len); |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2367 | p += msg_len_len; |
| 2368 | GPR_ASSERT(p == GRPC_SLICE_END_PTR(message_pfx)); |
| 2369 | len += (uint32_t)GRPC_SLICE_LENGTH(message_pfx); |
| 2370 | len += (uint32_t)msg_len; |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 2371 | |
Craig Tiller | 423d6fd | 2017-04-12 13:15:45 -0700 | [diff] [blame] | 2372 | hdr = GRPC_SLICE_MALLOC(9); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2373 | p = GRPC_SLICE_START_PTR(hdr); |
| 2374 | *p++ = (uint8_t)(len >> 16); |
| 2375 | *p++ = (uint8_t)(len >> 8); |
| 2376 | *p++ = (uint8_t)(len); |
| 2377 | *p++ = GRPC_CHTTP2_FRAME_HEADER; |
| 2378 | *p++ = GRPC_CHTTP2_DATA_FLAG_END_STREAM | GRPC_CHTTP2_DATA_FLAG_END_HEADERS; |
| 2379 | *p++ = (uint8_t)(s->id >> 24); |
| 2380 | *p++ = (uint8_t)(s->id >> 16); |
| 2381 | *p++ = (uint8_t)(s->id >> 8); |
| 2382 | *p++ = (uint8_t)(s->id); |
| 2383 | GPR_ASSERT(p == GRPC_SLICE_END_PTR(hdr)); |
| 2384 | |
| 2385 | grpc_slice_buffer_add(&t->qbuf, hdr); |
Muxi Yan | 3c3093c | 2017-03-17 14:36:01 -0700 | [diff] [blame] | 2386 | if (!s->sent_initial_metadata) { |
| 2387 | grpc_slice_buffer_add(&t->qbuf, http_status_hdr); |
Muxi Yan | 48cba2a | 2017-04-10 17:08:01 -0700 | [diff] [blame] | 2388 | grpc_slice_buffer_add(&t->qbuf, content_type_hdr); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2389 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 2390 | grpc_slice_buffer_add(&t->qbuf, status_hdr); |
ncteisen | bbb3801 | 2017-03-10 14:58:43 -0800 | [diff] [blame] | 2391 | grpc_slice_buffer_add(&t->qbuf, message_pfx); |
| 2392 | grpc_slice_buffer_add(&t->qbuf, grpc_slice_ref_internal(slice)); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2393 | grpc_slice_buffer_add( |
| 2394 | &t->qbuf, grpc_chttp2_rst_stream_create(s->id, GRPC_HTTP2_NO_ERROR, |
| 2395 | &s->stats.outgoing)); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 2396 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2397 | grpc_chttp2_mark_stream_closed(exec_ctx, t, s, 1, 1, error); |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2398 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 2399 | GRPC_CHTTP2_INITIATE_WRITE_CLOSE_FROM_API); |
ctiller | 00297df | 2015-01-12 11:23:09 -0800 | [diff] [blame] | 2400 | } |
| 2401 | |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2402 | typedef struct { |
| 2403 | grpc_exec_ctx *exec_ctx; |
| 2404 | grpc_error *error; |
Craig Tiller | 032b515 | 2016-08-21 13:30:09 -0700 | [diff] [blame] | 2405 | grpc_chttp2_transport *t; |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2406 | } cancel_stream_cb_args; |
| 2407 | |
Craig Tiller | 032b515 | 2016-08-21 13:30:09 -0700 | [diff] [blame] | 2408 | static void cancel_stream_cb(void *user_data, uint32_t key, void *stream) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2409 | cancel_stream_cb_args *args = (cancel_stream_cb_args *)user_data; |
| 2410 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)stream; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2411 | grpc_chttp2_cancel_stream(args->exec_ctx, args->t, s, |
Craig Tiller | 31375ac | 2016-08-22 09:08:00 -0700 | [diff] [blame] | 2412 | GRPC_ERROR_REF(args->error)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2413 | } |
| 2414 | |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2415 | static void end_all_the_calls(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, |
| 2416 | grpc_error *error) { |
Craig Tiller | 032b515 | 2016-08-21 13:30:09 -0700 | [diff] [blame] | 2417 | cancel_stream_cb_args args = {exec_ctx, error, t}; |
| 2418 | grpc_chttp2_stream_map_for_each(&t->stream_map, cancel_stream_cb, &args); |
Craig Tiller | f0f70a8 | 2016-06-23 13:55:06 -0700 | [diff] [blame] | 2419 | GRPC_ERROR_UNREF(error); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2420 | } |
| 2421 | |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2422 | /******************************************************************************* |
| 2423 | * INPUT PROCESSING - PARSING |
| 2424 | */ |
| 2425 | |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 2426 | void grpc_chttp2_act_on_flowctl_action(grpc_exec_ctx *exec_ctx, |
| 2427 | grpc_chttp2_flowctl_action action, |
| 2428 | grpc_chttp2_transport *t, |
| 2429 | grpc_chttp2_stream *s) { |
| 2430 | switch (action.send_stream_update) { |
| 2431 | case GRPC_CHTTP2_FLOWCTL_NO_ACTION_NEEDED: |
| 2432 | break; |
| 2433 | case GRPC_CHTTP2_FLOWCTL_UPDATE_IMMEDIATELY: |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2434 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 2435 | grpc_chttp2_initiate_write( |
| 2436 | exec_ctx, t, GRPC_CHTTP2_INITIATE_WRITE_STREAM_FLOW_CONTROL); |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 2437 | break; |
| 2438 | case GRPC_CHTTP2_FLOWCTL_QUEUE_UPDATE: |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2439 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 2440 | break; |
| 2441 | } |
| 2442 | switch (action.send_transport_update) { |
| 2443 | case GRPC_CHTTP2_FLOWCTL_NO_ACTION_NEEDED: |
| 2444 | break; |
| 2445 | case GRPC_CHTTP2_FLOWCTL_UPDATE_IMMEDIATELY: |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2446 | grpc_chttp2_initiate_write( |
| 2447 | exec_ctx, t, GRPC_CHTTP2_INITIATE_WRITE_TRANSPORT_FLOW_CONTROL); |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 2448 | break; |
| 2449 | // this is the same as no action b/c every time the transport enters the |
| 2450 | // writing path it will maybe do an update |
| 2451 | case GRPC_CHTTP2_FLOWCTL_QUEUE_UPDATE: |
| 2452 | break; |
| 2453 | } |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2454 | if (action.send_setting_update != GRPC_CHTTP2_FLOWCTL_NO_ACTION_NEEDED) { |
| 2455 | if (action.initial_window_size > 0) { |
| 2456 | queue_setting_update(exec_ctx, t, |
| 2457 | GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE, |
| 2458 | (uint32_t)action.initial_window_size); |
| 2459 | } |
| 2460 | if (action.max_frame_size > 0) { |
| 2461 | queue_setting_update(exec_ctx, t, GRPC_CHTTP2_SETTINGS_MAX_FRAME_SIZE, |
| 2462 | (uint32_t)action.max_frame_size); |
| 2463 | } |
| 2464 | if (action.send_setting_update == GRPC_CHTTP2_FLOWCTL_UPDATE_IMMEDIATELY) { |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2465 | grpc_chttp2_initiate_write(exec_ctx, t, |
| 2466 | GRPC_CHTTP2_INITIATE_WRITE_SEND_SETTINGS); |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2467 | } |
Craig Tiller | 8b34eca | 2016-10-20 21:13:31 -0700 | [diff] [blame] | 2468 | } |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2469 | if (action.need_ping) { |
| 2470 | GRPC_CHTTP2_REF_TRANSPORT(t, "bdp_ping"); |
| 2471 | grpc_bdp_estimator_schedule_ping(&t->flow_control.bdp_estimator); |
| 2472 | send_ping_locked(exec_ctx, t, |
| 2473 | GRPC_CHTTP2_PING_BEFORE_TRANSPORT_WINDOW_UPDATE, |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2474 | &t->start_bdp_ping_locked, &t->finish_bdp_ping_locked, |
| 2475 | GRPC_CHTTP2_INITIATE_WRITE_BDP_ESTIMATOR_PING); |
Craig Tiller | e2894b4 | 2017-02-15 08:12:55 -0800 | [diff] [blame] | 2476 | } |
Craig Tiller | 8b34eca | 2016-10-20 21:13:31 -0700 | [diff] [blame] | 2477 | } |
| 2478 | |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2479 | static grpc_error *try_http_parsing(grpc_exec_ctx *exec_ctx, |
| 2480 | grpc_chttp2_transport *t) { |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2481 | grpc_http_parser parser; |
| 2482 | size_t i = 0; |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2483 | grpc_error *error = GRPC_ERROR_NONE; |
| 2484 | grpc_http_response response; |
| 2485 | memset(&response, 0, sizeof(response)); |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2486 | |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2487 | grpc_http_parser_init(&parser, GRPC_HTTP_RESPONSE, &response); |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2488 | |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2489 | grpc_error *parse_error = GRPC_ERROR_NONE; |
| 2490 | for (; i < t->read_buffer.count && parse_error == GRPC_ERROR_NONE; i++) { |
Mark D. Roth | 0a05ab6 | 2016-08-04 13:10:13 -0700 | [diff] [blame] | 2491 | parse_error = |
| 2492 | grpc_http_parser_parse(&parser, t->read_buffer.slices[i], NULL); |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2493 | } |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2494 | if (parse_error == GRPC_ERROR_NONE && |
| 2495 | (parse_error = grpc_http_parser_eof(&parser)) == GRPC_ERROR_NONE) { |
| 2496 | error = grpc_error_set_int( |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2497 | grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 2498 | "Trying to connect an http1.x server"), |
| 2499 | GRPC_ERROR_INT_HTTP_STATUS, response.status), |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2500 | GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE); |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2501 | } |
| 2502 | GRPC_ERROR_UNREF(parse_error); |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2503 | |
| 2504 | grpc_http_parser_destroy(&parser); |
Craig Tiller | 34b11df | 2016-06-09 17:17:15 -0700 | [diff] [blame] | 2505 | grpc_http_response_destroy(&response); |
| 2506 | return error; |
Yuchen Zeng | a9d8c55 | 2016-06-02 16:11:28 -0700 | [diff] [blame] | 2507 | } |
| 2508 | |
Craig Tiller | 4e5b452 | 2016-08-26 16:31:34 -0700 | [diff] [blame] | 2509 | static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 2510 | grpc_error *error) { |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2511 | GPR_TIMER_BEGIN("reading_action_locked", 0); |
Craig Tiller | 4b074d5 | 2015-06-23 07:48:21 -0700 | [diff] [blame] | 2512 | |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2513 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2514 | |
| 2515 | GRPC_ERROR_REF(error); |
| 2516 | |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 2517 | grpc_error *err = error; |
| 2518 | if (err != GRPC_ERROR_NONE) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2519 | err = grpc_error_set_int(GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( |
| 2520 | "Endpoint read failed", &err, 1), |
| 2521 | GRPC_ERROR_INT_OCCURRED_DURING_WRITE, |
| 2522 | t->write_state); |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 2523 | } |
| 2524 | GPR_SWAP(grpc_error *, err, error); |
| 2525 | GRPC_ERROR_UNREF(err); |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2526 | if (!t->closed) { |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2527 | GPR_TIMER_BEGIN("reading_action.parse", 0); |
| 2528 | size_t i = 0; |
| 2529 | grpc_error *errors[3] = {GRPC_ERROR_REF(error), GRPC_ERROR_NONE, |
| 2530 | GRPC_ERROR_NONE}; |
| 2531 | for (; i < t->read_buffer.count && errors[1] == GRPC_ERROR_NONE; i++) { |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2532 | grpc_bdp_estimator_add_incoming_bytes( |
| 2533 | &t->flow_control.bdp_estimator, |
| 2534 | (int64_t)GRPC_SLICE_LENGTH(t->read_buffer.slices[i])); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2535 | errors[1] = |
| 2536 | grpc_chttp2_perform_read(exec_ctx, t, t->read_buffer.slices[i]); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 2537 | } |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2538 | if (errors[1] != GRPC_ERROR_NONE) { |
| 2539 | errors[2] = try_http_parsing(exec_ctx, t); |
| 2540 | GRPC_ERROR_UNREF(error); |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2541 | error = GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( |
| 2542 | "Failed parsing HTTP/2", errors, GPR_ARRAY_SIZE(errors)); |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2543 | } |
| 2544 | for (i = 0; i < GPR_ARRAY_SIZE(errors); i++) { |
| 2545 | GRPC_ERROR_UNREF(errors[i]); |
| 2546 | } |
| 2547 | GPR_TIMER_END("reading_action.parse", 0); |
| 2548 | |
| 2549 | GPR_TIMER_BEGIN("post_parse_locked", 0); |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 2550 | if (t->flow_control.initial_window_update != 0) { |
| 2551 | if (t->flow_control.initial_window_update > 0) { |
Craig Tiller | 1f67599 | 2016-10-19 14:43:06 -0700 | [diff] [blame] | 2552 | grpc_chttp2_stream *s; |
| 2553 | while (grpc_chttp2_list_pop_stalled_by_stream(t, &s)) { |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2554 | grpc_chttp2_mark_stream_writable(exec_ctx, t, s); |
| 2555 | grpc_chttp2_initiate_write( |
| 2556 | exec_ctx, t, |
| 2557 | GRPC_CHTTP2_INITIATE_WRITE_FLOW_CONTROL_UNSTALLED_BY_SETTING); |
Craig Tiller | 1f67599 | 2016-10-19 14:43:06 -0700 | [diff] [blame] | 2558 | } |
| 2559 | } |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 2560 | t->flow_control.initial_window_update = 0; |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2561 | } |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2562 | GPR_TIMER_END("post_parse_locked", 0); |
Craig Tiller | d76eb8a | 2016-03-22 08:49:28 -0700 | [diff] [blame] | 2563 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2564 | |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 2565 | GPR_TIMER_BEGIN("post_reading_action_locked", 0); |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2566 | bool keep_reading = false; |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 2567 | if (error == GRPC_ERROR_NONE && t->closed) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2568 | error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport closed"); |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 2569 | } |
| 2570 | if (error != GRPC_ERROR_NONE) { |
Craig Tiller | 936f1ea | 2016-10-14 15:15:19 -0700 | [diff] [blame] | 2571 | close_transport_locked(exec_ctx, t, GRPC_ERROR_REF(error)); |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2572 | t->endpoint_reading = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2573 | } else if (!t->closed) { |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2574 | keep_reading = true; |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 2575 | GRPC_CHTTP2_REF_TRANSPORT(t, "keep_reading"); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2576 | } |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 2577 | grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &t->read_buffer); |
Craig Tiller | b029859 | 2015-08-27 07:38:01 -0700 | [diff] [blame] | 2578 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2579 | if (keep_reading) { |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 2580 | grpc_endpoint_read(exec_ctx, t->ep, &t->read_buffer, |
| 2581 | &t->read_action_locked); |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2582 | grpc_chttp2_act_on_flowctl_action( |
| 2583 | exec_ctx, grpc_chttp2_flowctl_get_bdp_action(&t->flow_control), t, |
| 2584 | NULL); |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 2585 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keep_reading"); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2586 | } else { |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 2587 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "reading_action"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2588 | } |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 2589 | |
| 2590 | GPR_TIMER_END("post_reading_action_locked", 0); |
Craig Tiller | 67eb59e | 2016-08-16 11:40:54 -0700 | [diff] [blame] | 2591 | |
| 2592 | GRPC_ERROR_UNREF(error); |
| 2593 | |
| 2594 | GPR_TIMER_END("reading_action_locked", 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2595 | } |
| 2596 | |
Craig Tiller | 91f77ea | 2016-12-29 16:59:43 -0800 | [diff] [blame] | 2597 | static void start_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 2598 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2599 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 2600 | if (GRPC_TRACER_ON(grpc_http_trace)) { |
Craig Tiller | c5235d7 | 2017-01-20 14:12:30 -0800 | [diff] [blame] | 2601 | gpr_log(GPR_DEBUG, "%s: Start BDP ping", t->peer_string); |
| 2602 | } |
Yuchen Zeng | 5272dfc | 2017-02-27 20:39:35 -0800 | [diff] [blame] | 2603 | /* Reset the keepalive ping timer */ |
| 2604 | if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING) { |
| 2605 | grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer); |
| 2606 | } |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2607 | grpc_bdp_estimator_start_ping(&t->flow_control.bdp_estimator); |
Craig Tiller | 91f77ea | 2016-12-29 16:59:43 -0800 | [diff] [blame] | 2608 | } |
| 2609 | |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 2610 | static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, |
| 2611 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2612 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 2613 | if (GRPC_TRACER_ON(grpc_http_trace)) { |
Craig Tiller | c5235d7 | 2017-01-20 14:12:30 -0800 | [diff] [blame] | 2614 | gpr_log(GPR_DEBUG, "%s: Complete BDP ping", t->peer_string); |
| 2615 | } |
ncteisen | 41ba268 | 2017-07-14 16:15:10 -0700 | [diff] [blame] | 2616 | grpc_bdp_estimator_complete_ping(&t->flow_control.bdp_estimator); |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 2617 | |
Craig Tiller | f7970dd | 2016-10-20 16:49:13 -0700 | [diff] [blame] | 2618 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "bdp_ping"); |
| 2619 | } |
| 2620 | |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 2621 | void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args, |
| 2622 | bool is_client) { |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 2623 | size_t i; |
| 2624 | if (args) { |
| 2625 | for (i = 0; i < args->num_args; i++) { |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 2626 | if (0 == strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIME_MS)) { |
| 2627 | const int value = grpc_channel_arg_get_integer( |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 2628 | &args->args[i], |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 2629 | (grpc_integer_options){g_default_client_keepalive_time_ms, 1, |
Yuchen Zeng | 44264d5 | 2017-03-27 16:32:15 -0700 | [diff] [blame] | 2630 | INT_MAX}); |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 2631 | if (is_client) { |
| 2632 | g_default_client_keepalive_time_ms = value; |
| 2633 | } else { |
| 2634 | g_default_server_keepalive_time_ms = value; |
| 2635 | } |
| 2636 | } else if (0 == |
| 2637 | strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) { |
| 2638 | const int value = grpc_channel_arg_get_integer( |
Yuchen Zeng | c18d4b3 | 2017-03-29 15:04:42 -0700 | [diff] [blame] | 2639 | &args->args[i], |
| 2640 | (grpc_integer_options){g_default_client_keepalive_timeout_ms, 0, |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 2641 | INT_MAX}); |
Yuchen Zeng | 5f89996 | 2017-03-29 17:55:28 -0700 | [diff] [blame] | 2642 | if (is_client) { |
| 2643 | g_default_client_keepalive_timeout_ms = value; |
| 2644 | } else { |
| 2645 | g_default_server_keepalive_timeout_ms = value; |
| 2646 | } |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 2647 | } else if (0 == strcmp(args->args[i].key, |
| 2648 | GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS)) { |
| 2649 | g_default_keepalive_permit_without_calls = |
| 2650 | (uint32_t)grpc_channel_arg_get_integer( |
| 2651 | &args->args[i], |
| 2652 | (grpc_integer_options){g_default_keepalive_permit_without_calls, |
| 2653 | 0, 1}); |
Yuchen Zeng | d7eda61 | 2017-06-29 18:55:45 -0700 | [diff] [blame^] | 2654 | } else if (0 == |
| 2655 | strcmp(args->args[i].key, GRPC_ARG_HTTP2_MAX_PING_STRIKES)) { |
| 2656 | g_default_max_ping_strikes = grpc_channel_arg_get_integer( |
| 2657 | &args->args[i], |
| 2658 | (grpc_integer_options){g_default_max_ping_strikes, 0, INT_MAX}); |
| 2659 | } else if (0 == strcmp(args->args[i].key, |
| 2660 | GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA)) { |
| 2661 | g_default_max_pings_without_data = grpc_channel_arg_get_integer( |
| 2662 | &args->args[i], (grpc_integer_options){ |
| 2663 | g_default_max_pings_without_data, 0, INT_MAX}); |
| 2664 | } else if (0 == |
| 2665 | strcmp( |
| 2666 | args->args[i].key, |
| 2667 | GRPC_ARG_HTTP2_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS)) { |
| 2668 | g_default_min_sent_ping_interval_without_data_ms = |
| 2669 | grpc_channel_arg_get_integer( |
| 2670 | &args->args[i], |
| 2671 | (grpc_integer_options){ |
| 2672 | g_default_min_sent_ping_interval_without_data_ms, 0, |
| 2673 | INT_MAX}); |
| 2674 | } else if (0 == |
| 2675 | strcmp( |
| 2676 | args->args[i].key, |
| 2677 | GRPC_ARG_HTTP2_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS)) { |
| 2678 | g_default_min_recv_ping_interval_without_data_ms = |
| 2679 | grpc_channel_arg_get_integer( |
| 2680 | &args->args[i], |
| 2681 | (grpc_integer_options){ |
| 2682 | g_default_min_recv_ping_interval_without_data_ms, 0, |
| 2683 | INT_MAX}); |
Yuchen Zeng | 3d43da7 | 2017-03-27 11:33:21 -0700 | [diff] [blame] | 2684 | } |
| 2685 | } |
| 2686 | } |
| 2687 | } |
| 2688 | |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2689 | static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 2690 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2691 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2692 | GPR_ASSERT(t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING); |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 2693 | if (t->destroying || t->closed) { |
| 2694 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING; |
| 2695 | } else if (error == GRPC_ERROR_NONE) { |
Yuchen Zeng | 0937fc1 | 2017-02-27 23:19:00 -0800 | [diff] [blame] | 2696 | if (t->keepalive_permit_without_calls || |
| 2697 | grpc_chttp2_stream_map_size(&t->stream_map) > 0) { |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2698 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_PINGING; |
| 2699 | GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive ping end"); |
| 2700 | send_ping_locked(exec_ctx, t, GRPC_CHTTP2_PING_ON_NEXT_WRITE, |
| 2701 | &t->start_keepalive_ping_locked, |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 2702 | &t->finish_keepalive_ping_locked, |
| 2703 | GRPC_CHTTP2_INITIATE_WRITE_KEEPALIVE_PING); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2704 | } else { |
| 2705 | GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping"); |
| 2706 | grpc_timer_init( |
| 2707 | exec_ctx, &t->keepalive_ping_timer, |
| 2708 | gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time), |
Yuchen Zeng | 380a3be | 2017-02-26 23:37:50 -0800 | [diff] [blame] | 2709 | &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC)); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2710 | } |
Yuchen Zeng | aaa779e | 2017-04-12 18:06:36 -0700 | [diff] [blame] | 2711 | } else if (error == GRPC_ERROR_CANCELLED) { |
Yuchen Zeng | 5272dfc | 2017-02-27 20:39:35 -0800 | [diff] [blame] | 2712 | /* The keepalive ping timer may be cancelled by bdp */ |
| 2713 | GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping"); |
| 2714 | grpc_timer_init( |
| 2715 | exec_ctx, &t->keepalive_ping_timer, |
| 2716 | gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time), |
| 2717 | &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC)); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2718 | } |
| 2719 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "init keepalive ping"); |
| 2720 | } |
| 2721 | |
| 2722 | static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 2723 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2724 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2725 | GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive watchdog"); |
| 2726 | grpc_timer_init( |
| 2727 | exec_ctx, &t->keepalive_watchdog_timer, |
| 2728 | gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_timeout), |
Yuchen Zeng | 380a3be | 2017-02-26 23:37:50 -0800 | [diff] [blame] | 2729 | &t->keepalive_watchdog_fired_locked, gpr_now(GPR_CLOCK_MONOTONIC)); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2730 | } |
| 2731 | |
| 2732 | static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 2733 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2734 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2735 | if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) { |
| 2736 | if (error == GRPC_ERROR_NONE) { |
| 2737 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING; |
| 2738 | grpc_timer_cancel(exec_ctx, &t->keepalive_watchdog_timer); |
| 2739 | GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping"); |
| 2740 | grpc_timer_init( |
| 2741 | exec_ctx, &t->keepalive_ping_timer, |
| 2742 | gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time), |
Yuchen Zeng | b4b6a0e | 2017-02-28 22:06:52 -0800 | [diff] [blame] | 2743 | &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC)); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2744 | } |
| 2745 | } |
| 2746 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keepalive ping end"); |
| 2747 | } |
| 2748 | |
| 2749 | static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 2750 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2751 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2752 | if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) { |
| 2753 | if (error == GRPC_ERROR_NONE) { |
| 2754 | t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING; |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 2755 | close_transport_locked(exec_ctx, t, GRPC_ERROR_CREATE_FROM_STATIC_STRING( |
| 2756 | "keepalive watchdog timeout")); |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2757 | } |
| 2758 | } else { |
Yuchen Zeng | 5272dfc | 2017-02-27 20:39:35 -0800 | [diff] [blame] | 2759 | /* The watchdog timer should have been cancelled by |
| 2760 | * finish_keepalive_ping_locked. */ |
Yuchen Zeng | efdf5a3 | 2017-02-26 23:29:54 -0800 | [diff] [blame] | 2761 | if (error != GRPC_ERROR_CANCELLED) { |
| 2762 | gpr_log(GPR_ERROR, "keepalive_ping_end state error: %d (expect: %d)", |
| 2763 | t->keepalive_state, GRPC_CHTTP2_KEEPALIVE_STATE_PINGING); |
| 2764 | } |
| 2765 | } |
| 2766 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keepalive watchdog"); |
| 2767 | } |
| 2768 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 2769 | /******************************************************************************* |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 2770 | * CALLBACK LOOP |
| 2771 | */ |
| 2772 | |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2773 | static void connectivity_state_set(grpc_exec_ctx *exec_ctx, |
| 2774 | grpc_chttp2_transport *t, |
| 2775 | grpc_connectivity_state state, |
| 2776 | grpc_error *error, const char *reason) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 2777 | GRPC_CHTTP2_IF_TRACING( |
| 2778 | gpr_log(GPR_DEBUG, "set connectivity_state=%d", state)); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2779 | grpc_connectivity_state_set(exec_ctx, &t->channel_callback.state_tracker, |
| 2780 | state, error, reason); |
Craig Tiller | 1766a91 | 2015-06-22 16:43:43 -0700 | [diff] [blame] | 2781 | } |
| 2782 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 2783 | /******************************************************************************* |
Craig Tiller | c079c11 | 2015-04-22 15:23:39 -0700 | [diff] [blame] | 2784 | * POLLSET STUFF |
| 2785 | */ |
| 2786 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2787 | static void set_pollset(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
| 2788 | grpc_stream *gs, grpc_pollset *pollset) { |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 2789 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
| 2790 | grpc_endpoint_add_to_pollset(exec_ctx, t->ep, pollset); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2791 | } |
| 2792 | |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 2793 | static void set_pollset_set(grpc_exec_ctx *exec_ctx, grpc_transport *gt, |
| 2794 | grpc_stream *gs, grpc_pollset_set *pollset_set) { |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 2795 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; |
| 2796 | grpc_endpoint_add_to_pollset_set(exec_ctx, t->ep, pollset_set); |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 2797 | } |
| 2798 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 2799 | /******************************************************************************* |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2800 | * BYTE STREAM |
| 2801 | */ |
| 2802 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2803 | static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, |
| 2804 | grpc_error *error) { |
| 2805 | grpc_chttp2_stream *s = (grpc_chttp2_stream *)arg; |
| 2806 | |
| 2807 | s->pending_byte_stream = false; |
| 2808 | if (error == GRPC_ERROR_NONE) { |
| 2809 | grpc_chttp2_maybe_complete_recv_message(exec_ctx, s->t, s); |
| 2810 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, s->t, s); |
| 2811 | } else { |
| 2812 | GPR_ASSERT(error != GRPC_ERROR_NONE); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2813 | GRPC_CLOSURE_SCHED(exec_ctx, s->on_next, GRPC_ERROR_REF(error)); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2814 | s->on_next = NULL; |
| 2815 | GRPC_ERROR_UNREF(s->byte_stream_error); |
| 2816 | s->byte_stream_error = GRPC_ERROR_NONE; |
| 2817 | grpc_chttp2_cancel_stream(exec_ctx, s->t, s, GRPC_ERROR_REF(error)); |
| 2818 | s->byte_stream_error = error; |
| 2819 | } |
| 2820 | } |
| 2821 | |
Craig Tiller | a93e5a4 | 2016-04-26 21:47:49 -0700 | [diff] [blame] | 2822 | static void incoming_byte_stream_unref(grpc_exec_ctx *exec_ctx, |
| 2823 | grpc_chttp2_incoming_byte_stream *bs) { |
| 2824 | if (gpr_unref(&bs->refs)) { |
Craig Tiller | a93e5a4 | 2016-04-26 21:47:49 -0700 | [diff] [blame] | 2825 | gpr_free(bs); |
| 2826 | } |
| 2827 | } |
| 2828 | |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2829 | static void incoming_byte_stream_next_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 2830 | void *argp, |
| 2831 | grpc_error *error_ignored) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 2832 | grpc_chttp2_incoming_byte_stream *bs = |
| 2833 | (grpc_chttp2_incoming_byte_stream *)argp; |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 2834 | grpc_chttp2_transport *t = bs->transport; |
| 2835 | grpc_chttp2_stream *s = bs->stream; |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2836 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2837 | size_t cur_length = s->frame_storage.length; |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 2838 | if (!s->read_closed) { |
ncteisen | 00f74a9 | 2017-07-14 15:41:05 -0700 | [diff] [blame] | 2839 | grpc_chttp2_flowctl_incoming_bs_update(&t->flow_control, &s->flow_control, |
| 2840 | bs->next_action.max_size_hint, |
| 2841 | cur_length); |
ncteisen | 020dbf2 | 2017-07-14 15:42:54 -0700 | [diff] [blame] | 2842 | grpc_chttp2_act_on_flowctl_action( |
ncteisen | 00f74a9 | 2017-07-14 15:41:05 -0700 | [diff] [blame] | 2843 | exec_ctx, |
| 2844 | grpc_chttp2_flowctl_get_action(&t->flow_control, &s->flow_control), t, |
| 2845 | s); |
ncteisen | 3c909d5 | 2017-07-13 19:45:51 -0700 | [diff] [blame] | 2846 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2847 | GPR_ASSERT(s->unprocessed_incoming_frames_buffer.length == 0); |
| 2848 | if (s->frame_storage.length > 0) { |
| 2849 | grpc_slice_buffer_swap(&s->frame_storage, |
| 2850 | &s->unprocessed_incoming_frames_buffer); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2851 | s->unprocessed_incoming_frames_decompressed = false; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2852 | GRPC_CLOSURE_SCHED(exec_ctx, bs->next_action.on_complete, GRPC_ERROR_NONE); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2853 | } else if (s->byte_stream_error != GRPC_ERROR_NONE) { |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2854 | GRPC_CLOSURE_SCHED(exec_ctx, bs->next_action.on_complete, |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2855 | GRPC_ERROR_REF(s->byte_stream_error)); |
| 2856 | if (s->data_parser.parsing_frame != NULL) { |
| 2857 | incoming_byte_stream_unref(exec_ctx, s->data_parser.parsing_frame); |
| 2858 | s->data_parser.parsing_frame = NULL; |
| 2859 | } |
| 2860 | } else if (s->read_closed) { |
| 2861 | if (bs->remaining_bytes != 0) { |
| 2862 | s->byte_stream_error = |
| 2863 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2864 | GRPC_CLOSURE_SCHED(exec_ctx, bs->next_action.on_complete, |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2865 | GRPC_ERROR_REF(s->byte_stream_error)); |
| 2866 | if (s->data_parser.parsing_frame != NULL) { |
| 2867 | incoming_byte_stream_unref(exec_ctx, s->data_parser.parsing_frame); |
| 2868 | s->data_parser.parsing_frame = NULL; |
| 2869 | } |
| 2870 | } else { |
| 2871 | /* Should never reach here. */ |
| 2872 | GPR_ASSERT(false); |
| 2873 | } |
Craig Tiller | c71e6a6 | 2017-04-12 15:49:39 -0700 | [diff] [blame] | 2874 | } else { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2875 | s->on_next = bs->next_action.on_complete; |
Craig Tiller | c71e6a6 | 2017-04-12 15:49:39 -0700 | [diff] [blame] | 2876 | } |
Craig Tiller | a93e5a4 | 2016-04-26 21:47:49 -0700 | [diff] [blame] | 2877 | incoming_byte_stream_unref(exec_ctx, bs); |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2878 | } |
| 2879 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2880 | static bool incoming_byte_stream_next(grpc_exec_ctx *exec_ctx, |
| 2881 | grpc_byte_stream *byte_stream, |
| 2882 | size_t max_size_hint, |
| 2883 | grpc_closure *on_complete) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 2884 | GPR_TIMER_BEGIN("incoming_byte_stream_next", 0); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2885 | grpc_chttp2_incoming_byte_stream *bs = |
| 2886 | (grpc_chttp2_incoming_byte_stream *)byte_stream; |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2887 | grpc_chttp2_stream *s = bs->stream; |
| 2888 | if (s->unprocessed_incoming_frames_buffer.length > 0) { |
Muxi Yan | 93b1120 | 2017-04-19 11:05:57 -0700 | [diff] [blame] | 2889 | GPR_TIMER_END("incoming_byte_stream_next", 0); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2890 | return true; |
| 2891 | } else { |
| 2892 | gpr_ref(&bs->refs); |
| 2893 | bs->next_action.max_size_hint = max_size_hint; |
| 2894 | bs->next_action.on_complete = on_complete; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2895 | GRPC_CLOSURE_SCHED( |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2896 | exec_ctx, |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2897 | GRPC_CLOSURE_INIT(&bs->next_action.closure, |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 2898 | incoming_byte_stream_next_locked, bs, |
| 2899 | grpc_combiner_scheduler(bs->transport->combiner)), |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2900 | GRPC_ERROR_NONE); |
| 2901 | GPR_TIMER_END("incoming_byte_stream_next", 0); |
| 2902 | return false; |
| 2903 | } |
| 2904 | } |
| 2905 | |
| 2906 | static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, |
| 2907 | grpc_byte_stream *byte_stream, |
| 2908 | grpc_slice *slice) { |
| 2909 | GPR_TIMER_BEGIN("incoming_byte_stream_pull", 0); |
| 2910 | grpc_chttp2_incoming_byte_stream *bs = |
| 2911 | (grpc_chttp2_incoming_byte_stream *)byte_stream; |
| 2912 | grpc_chttp2_stream *s = bs->stream; |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2913 | grpc_error *error; |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2914 | |
| 2915 | if (s->unprocessed_incoming_frames_buffer.length > 0) { |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2916 | if (s->stream_compression_recv_enabled && |
| 2917 | !s->unprocessed_incoming_frames_decompressed) { |
| 2918 | bool end_of_context; |
| 2919 | if (!s->stream_decompression_ctx) { |
| 2920 | s->stream_decompression_ctx = grpc_stream_compression_context_create( |
| 2921 | GRPC_STREAM_COMPRESSION_DECOMPRESS); |
| 2922 | } |
| 2923 | if (!grpc_stream_decompress(s->stream_decompression_ctx, |
| 2924 | &s->unprocessed_incoming_frames_buffer, |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 2925 | s->decompressed_data_buffer, NULL, MAX_SIZE_T, |
| 2926 | &end_of_context)) { |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2927 | error = |
| 2928 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Stream decompression error."); |
| 2929 | return error; |
| 2930 | } |
| 2931 | GPR_ASSERT(s->unprocessed_incoming_frames_buffer.length == 0); |
| 2932 | grpc_slice_buffer_swap(&s->unprocessed_incoming_frames_buffer, |
Muxi Yan | 9469ac4 | 2017-07-21 12:50:35 -0700 | [diff] [blame] | 2933 | s->decompressed_data_buffer); |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2934 | s->unprocessed_incoming_frames_decompressed = true; |
| 2935 | if (end_of_context) { |
| 2936 | grpc_stream_compression_context_destroy(s->stream_decompression_ctx); |
| 2937 | s->stream_decompression_ctx = NULL; |
| 2938 | } |
Muxi Yan | 684a397 | 2017-08-23 15:11:31 -0700 | [diff] [blame] | 2939 | if (s->unprocessed_incoming_frames_buffer.length == 0) { |
| 2940 | *slice = grpc_empty_slice(); |
| 2941 | } |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2942 | } |
| 2943 | error = grpc_deframe_unprocessed_incoming_frames( |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2944 | exec_ctx, &s->data_parser, s, &s->unprocessed_incoming_frames_buffer, |
| 2945 | slice, NULL); |
| 2946 | if (error != GRPC_ERROR_NONE) { |
| 2947 | return error; |
| 2948 | } |
| 2949 | } else { |
Muxi Yan | 68198b5 | 2017-07-12 11:43:23 -0700 | [diff] [blame] | 2950 | error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2951 | GRPC_CLOSURE_SCHED(exec_ctx, &s->reset_byte_stream, GRPC_ERROR_REF(error)); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2952 | return error; |
| 2953 | } |
| 2954 | GPR_TIMER_END("incoming_byte_stream_pull", 0); |
| 2955 | return GRPC_ERROR_NONE; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2956 | } |
| 2957 | |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 2958 | static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 2959 | void *byte_stream, |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 2960 | grpc_error *error_ignored); |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 2961 | |
| 2962 | static void incoming_byte_stream_destroy(grpc_exec_ctx *exec_ctx, |
Craig Tiller | a3f298f | 2015-12-16 19:42:09 -0800 | [diff] [blame] | 2963 | grpc_byte_stream *byte_stream) { |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 2964 | GPR_TIMER_BEGIN("incoming_byte_stream_destroy", 0); |
Craig Tiller | 414217e | 2016-03-25 13:31:06 -0700 | [diff] [blame] | 2965 | grpc_chttp2_incoming_byte_stream *bs = |
| 2966 | (grpc_chttp2_incoming_byte_stream *)byte_stream; |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2967 | GRPC_CLOSURE_SCHED( |
| 2968 | exec_ctx, GRPC_CLOSURE_INIT( |
Craig Tiller | ee4b145 | 2017-05-12 10:56:03 -0700 | [diff] [blame] | 2969 | &bs->destroy_action, incoming_byte_stream_destroy_locked, |
| 2970 | bs, grpc_combiner_scheduler(bs->transport->combiner)), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 2971 | GRPC_ERROR_NONE); |
Craig Tiller | c69d27b | 2016-07-14 13:20:22 -0700 | [diff] [blame] | 2972 | GPR_TIMER_END("incoming_byte_stream_destroy", 0); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 2973 | } |
| 2974 | |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 2975 | static void incoming_byte_stream_publish_error( |
| 2976 | grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, |
| 2977 | grpc_error *error) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2978 | grpc_chttp2_stream *s = bs->stream; |
| 2979 | |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 2980 | GPR_ASSERT(error != GRPC_ERROR_NONE); |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2981 | GRPC_CLOSURE_SCHED(exec_ctx, s->on_next, GRPC_ERROR_REF(error)); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2982 | s->on_next = NULL; |
| 2983 | GRPC_ERROR_UNREF(s->byte_stream_error); |
| 2984 | s->byte_stream_error = GRPC_ERROR_REF(error); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 2985 | grpc_chttp2_cancel_stream(exec_ctx, bs->transport, bs->stream, |
| 2986 | GRPC_ERROR_REF(error)); |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 2987 | } |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 2988 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2989 | grpc_error *grpc_chttp2_incoming_byte_stream_push( |
| 2990 | grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, |
| 2991 | grpc_slice slice, grpc_slice *slice_out) { |
| 2992 | grpc_chttp2_stream *s = bs->stream; |
| 2993 | |
Craig Tiller | 618e67d | 2016-10-26 21:08:10 -0700 | [diff] [blame] | 2994 | if (bs->remaining_bytes < GRPC_SLICE_LENGTH(slice)) { |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2995 | grpc_error *error = |
| 2996 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many bytes in stream"); |
| 2997 | |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 2998 | GRPC_CLOSURE_SCHED(exec_ctx, &s->reset_byte_stream, GRPC_ERROR_REF(error)); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 2999 | grpc_slice_unref_internal(exec_ctx, slice); |
| 3000 | return error; |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 3001 | } else { |
Craig Tiller | 618e67d | 2016-10-26 21:08:10 -0700 | [diff] [blame] | 3002 | bs->remaining_bytes -= (uint32_t)GRPC_SLICE_LENGTH(slice); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3003 | if (slice_out != NULL) { |
| 3004 | *slice_out = slice; |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3005 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3006 | return GRPC_ERROR_NONE; |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 3007 | } |
Craig Tiller | 45b135e | 2016-03-22 16:02:39 -0700 | [diff] [blame] | 3008 | } |
| 3009 | |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3010 | grpc_error *grpc_chttp2_incoming_byte_stream_finished( |
Craig Tiller | a7cd41c | 2016-08-31 12:59:24 -0700 | [diff] [blame] | 3011 | grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3012 | grpc_error *error, bool reset_on_error) { |
| 3013 | grpc_chttp2_stream *s = bs->stream; |
| 3014 | |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3015 | if (error == GRPC_ERROR_NONE) { |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3016 | if (bs->remaining_bytes != 0) { |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 3017 | error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3018 | } |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3019 | } |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3020 | if (error != GRPC_ERROR_NONE && reset_on_error) { |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 3021 | GRPC_CLOSURE_SCHED(exec_ctx, &s->reset_byte_stream, GRPC_ERROR_REF(error)); |
Craig Tiller | 93023e4 | 2016-07-11 12:43:23 -0700 | [diff] [blame] | 3022 | } |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 3023 | incoming_byte_stream_unref(exec_ctx, bs); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3024 | return error; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3025 | } |
| 3026 | |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 3027 | static void incoming_byte_stream_shutdown(grpc_exec_ctx *exec_ctx, |
| 3028 | grpc_byte_stream *byte_stream, |
| 3029 | grpc_error *error) { |
| 3030 | grpc_chttp2_incoming_byte_stream *bs = |
| 3031 | (grpc_chttp2_incoming_byte_stream *)byte_stream; |
| 3032 | GRPC_ERROR_UNREF(grpc_chttp2_incoming_byte_stream_finished( |
| 3033 | exec_ctx, bs, error, true /* reset_on_error */)); |
| 3034 | } |
| 3035 | |
| 3036 | static const grpc_byte_stream_vtable grpc_chttp2_incoming_byte_stream_vtable = { |
| 3037 | incoming_byte_stream_next, incoming_byte_stream_pull, |
| 3038 | incoming_byte_stream_shutdown, incoming_byte_stream_destroy}; |
| 3039 | |
| 3040 | static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, |
| 3041 | void *byte_stream, |
| 3042 | grpc_error *error_ignored) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 3043 | grpc_chttp2_incoming_byte_stream *bs = |
| 3044 | (grpc_chttp2_incoming_byte_stream *)byte_stream; |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 3045 | grpc_chttp2_stream *s = bs->stream; |
| 3046 | grpc_chttp2_transport *t = s->t; |
| 3047 | |
| 3048 | GPR_ASSERT(bs->base.vtable == &grpc_chttp2_incoming_byte_stream_vtable); |
| 3049 | incoming_byte_stream_unref(exec_ctx, bs); |
| 3050 | s->pending_byte_stream = false; |
| 3051 | grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); |
| 3052 | grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); |
| 3053 | } |
| 3054 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3055 | grpc_chttp2_incoming_byte_stream *grpc_chttp2_incoming_byte_stream_create( |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 3056 | grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, grpc_chttp2_stream *s, |
| 3057 | uint32_t frame_size, uint32_t flags) { |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3058 | grpc_chttp2_incoming_byte_stream *incoming_byte_stream = |
Craig Tiller | 3ad5c74 | 2017-09-14 11:29:30 -0700 | [diff] [blame] | 3059 | (grpc_chttp2_incoming_byte_stream *)gpr_malloc( |
| 3060 | sizeof(*incoming_byte_stream)); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3061 | incoming_byte_stream->base.length = frame_size; |
Craig Tiller | a96f8cb | 2016-09-01 09:17:11 -0700 | [diff] [blame] | 3062 | incoming_byte_stream->remaining_bytes = frame_size; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3063 | incoming_byte_stream->base.flags = flags; |
Mark D. Roth | 5794061 | 2017-07-26 14:29:52 -0700 | [diff] [blame] | 3064 | incoming_byte_stream->base.vtable = &grpc_chttp2_incoming_byte_stream_vtable; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3065 | gpr_ref_init(&incoming_byte_stream->refs, 2); |
Craig Tiller | 3d7c609 | 2016-08-26 11:39:05 -0700 | [diff] [blame] | 3066 | incoming_byte_stream->transport = t; |
| 3067 | incoming_byte_stream->stream = s; |
yang-g | 0aeede3 | 2017-06-19 14:30:14 -0700 | [diff] [blame] | 3068 | GRPC_ERROR_UNREF(s->byte_stream_error); |
Muxi Yan | 29723ee | 2017-04-12 20:24:42 -0700 | [diff] [blame] | 3069 | s->byte_stream_error = GRPC_ERROR_NONE; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 3070 | return incoming_byte_stream; |
| 3071 | } |
| 3072 | |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 3073 | /******************************************************************************* |
Craig Tiller | 6b5d682 | 2016-10-25 16:13:26 -0700 | [diff] [blame] | 3074 | * RESOURCE QUOTAS |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3075 | */ |
| 3076 | |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 3077 | static void post_benign_reclaimer(grpc_exec_ctx *exec_ctx, |
| 3078 | grpc_chttp2_transport *t) { |
| 3079 | if (!t->benign_reclaimer_registered) { |
| 3080 | t->benign_reclaimer_registered = true; |
| 3081 | GRPC_CHTTP2_REF_TRANSPORT(t, "benign_reclaimer"); |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 3082 | grpc_resource_user_post_reclaimer(exec_ctx, |
| 3083 | grpc_endpoint_get_resource_user(t->ep), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 3084 | false, &t->benign_reclaimer_locked); |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 3085 | } |
| 3086 | } |
| 3087 | |
| 3088 | static void post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, |
| 3089 | grpc_chttp2_transport *t) { |
| 3090 | if (!t->destructive_reclaimer_registered) { |
| 3091 | t->destructive_reclaimer_registered = true; |
| 3092 | GRPC_CHTTP2_REF_TRANSPORT(t, "destructive_reclaimer"); |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 3093 | grpc_resource_user_post_reclaimer(exec_ctx, |
| 3094 | grpc_endpoint_get_resource_user(t->ep), |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 3095 | true, &t->destructive_reclaimer_locked); |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 3096 | } |
| 3097 | } |
| 3098 | |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3099 | static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 3100 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 3101 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3102 | if (error == GRPC_ERROR_NONE && |
| 3103 | grpc_chttp2_stream_map_size(&t->stream_map) == 0) { |
Craig Tiller | 6b5d682 | 2016-10-25 16:13:26 -0700 | [diff] [blame] | 3104 | /* Channel with no active streams: send a goaway to try and make it |
| 3105 | * disconnect cleanly */ |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 3106 | if (GRPC_TRACER_ON(grpc_resource_quota_trace)) { |
Craig Tiller | ef6b976 | 2016-09-28 08:37:51 -0700 | [diff] [blame] | 3107 | gpr_log(GPR_DEBUG, "HTTP2: %s - send goaway to free memory", |
| 3108 | t->peer_string); |
| 3109 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 3110 | send_goaway(exec_ctx, t, |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 3111 | grpc_error_set_int( |
| 3112 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Buffers full"), |
| 3113 | GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM)); |
Craig Tiller | 3b65436 | 2017-05-04 08:11:17 -0700 | [diff] [blame] | 3114 | } else if (error == GRPC_ERROR_NONE && |
| 3115 | GRPC_TRACER_ON(grpc_resource_quota_trace)) { |
Craig Tiller | ef6b976 | 2016-09-28 08:37:51 -0700 | [diff] [blame] | 3116 | gpr_log(GPR_DEBUG, |
Craig Tiller | 3798e60 | 2016-10-21 14:39:27 -0700 | [diff] [blame] | 3117 | "HTTP2: %s - skip benign reclamation, there are still %" PRIdPTR |
Craig Tiller | ef6b976 | 2016-09-28 08:37:51 -0700 | [diff] [blame] | 3118 | " streams", |
| 3119 | t->peer_string, grpc_chttp2_stream_map_size(&t->stream_map)); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3120 | } |
| 3121 | t->benign_reclaimer_registered = false; |
Craig Tiller | 69a1f66 | 2016-09-28 10:24:21 -0700 | [diff] [blame] | 3122 | if (error != GRPC_ERROR_CANCELLED) { |
Craig Tiller | 3798e60 | 2016-10-21 14:39:27 -0700 | [diff] [blame] | 3123 | grpc_resource_user_finish_reclamation( |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 3124 | exec_ctx, grpc_endpoint_get_resource_user(t->ep)); |
Craig Tiller | 69a1f66 | 2016-09-28 10:24:21 -0700 | [diff] [blame] | 3125 | } |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3126 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "benign_reclaimer"); |
| 3127 | } |
| 3128 | |
| 3129 | static void destructive_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, |
| 3130 | grpc_error *error) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 3131 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3132 | size_t n = grpc_chttp2_stream_map_size(&t->stream_map); |
| 3133 | t->destructive_reclaimer_registered = false; |
| 3134 | if (error == GRPC_ERROR_NONE && n > 0) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 3135 | grpc_chttp2_stream *s = |
| 3136 | (grpc_chttp2_stream *)grpc_chttp2_stream_map_rand(&t->stream_map); |
Craig Tiller | 84f75d4 | 2017-05-03 13:06:35 -0700 | [diff] [blame] | 3137 | if (GRPC_TRACER_ON(grpc_resource_quota_trace)) { |
Craig Tiller | ef6b976 | 2016-09-28 08:37:51 -0700 | [diff] [blame] | 3138 | gpr_log(GPR_DEBUG, "HTTP2: %s - abandon stream id %d", t->peer_string, |
| 3139 | s->id); |
| 3140 | } |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3141 | grpc_chttp2_cancel_stream( |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 3142 | exec_ctx, t, s, |
| 3143 | grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING("Buffers full"), |
| 3144 | GRPC_ERROR_INT_HTTP2_ERROR, |
| 3145 | GRPC_HTTP2_ENHANCE_YOUR_CALM)); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3146 | if (n > 1) { |
Craig Tiller | 8abc796 | 2016-10-26 21:31:29 -0700 | [diff] [blame] | 3147 | /* Since we cancel one stream per destructive reclamation, if |
Craig Tiller | 6b5d682 | 2016-10-25 16:13:26 -0700 | [diff] [blame] | 3148 | there are more streams left, we can immediately post a new |
| 3149 | reclaimer in case the resource quota needs to free more |
| 3150 | memory */ |
Craig Tiller | 795451f | 2016-09-27 08:47:28 -0700 | [diff] [blame] | 3151 | post_destructive_reclaimer(exec_ctx, t); |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3152 | } |
| 3153 | } |
Craig Tiller | 69a1f66 | 2016-09-28 10:24:21 -0700 | [diff] [blame] | 3154 | if (error != GRPC_ERROR_CANCELLED) { |
Craig Tiller | 3798e60 | 2016-10-21 14:39:27 -0700 | [diff] [blame] | 3155 | grpc_resource_user_finish_reclamation( |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 3156 | exec_ctx, grpc_endpoint_get_resource_user(t->ep)); |
Craig Tiller | 69a1f66 | 2016-09-28 10:24:21 -0700 | [diff] [blame] | 3157 | } |
Craig Tiller | 25f29af | 2016-09-26 16:31:00 -0700 | [diff] [blame] | 3158 | GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "destructive_reclaimer"); |
| 3159 | } |
| 3160 | |
| 3161 | /******************************************************************************* |
Yuchen Zeng | 5ab4ca5 | 2016-10-24 10:49:55 -0700 | [diff] [blame] | 3162 | * MONITORING |
| 3163 | */ |
Craig Tiller | 3ff1fa6 | 2017-09-14 11:07:48 -0700 | [diff] [blame] | 3164 | |
| 3165 | const char *grpc_chttp2_initiate_write_reason_string( |
| 3166 | grpc_chttp2_initiate_write_reason reason) { |
| 3167 | switch (reason) { |
| 3168 | case GRPC_CHTTP2_INITIATE_WRITE_INITIAL_WRITE: |
| 3169 | return "INITIAL_WRITE"; |
| 3170 | case GRPC_CHTTP2_INITIATE_WRITE_START_NEW_STREAM: |
| 3171 | return "START_NEW_STREAM"; |
| 3172 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_MESSAGE: |
| 3173 | return "SEND_MESSAGE"; |
| 3174 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_INITIAL_METADATA: |
| 3175 | return "SEND_INITIAL_METADATA"; |
| 3176 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_TRAILING_METADATA: |
| 3177 | return "SEND_TRAILING_METADATA"; |
| 3178 | case GRPC_CHTTP2_INITIATE_WRITE_RETRY_SEND_PING: |
| 3179 | return "RETRY_SEND_PING"; |
| 3180 | case GRPC_CHTTP2_INITIATE_WRITE_CONTINUE_PINGS: |
| 3181 | return "CONTINUE_PINGS"; |
| 3182 | case GRPC_CHTTP2_INITIATE_WRITE_GOAWAY_SENT: |
| 3183 | return "GOAWAY_SENT"; |
| 3184 | case GRPC_CHTTP2_INITIATE_WRITE_RST_STREAM: |
| 3185 | return "RST_STREAM"; |
| 3186 | case GRPC_CHTTP2_INITIATE_WRITE_CLOSE_FROM_API: |
| 3187 | return "CLOSE_FROM_API"; |
| 3188 | case GRPC_CHTTP2_INITIATE_WRITE_STREAM_FLOW_CONTROL: |
| 3189 | return "STREAM_FLOW_CONTROL"; |
| 3190 | case GRPC_CHTTP2_INITIATE_WRITE_TRANSPORT_FLOW_CONTROL: |
| 3191 | return "TRANSPORT_FLOW_CONTROL"; |
| 3192 | case GRPC_CHTTP2_INITIATE_WRITE_SEND_SETTINGS: |
| 3193 | return "SEND_SETTINGS"; |
| 3194 | case GRPC_CHTTP2_INITIATE_WRITE_BDP_ESTIMATOR_PING: |
| 3195 | return "BDP_ESTIMATOR_PING"; |
| 3196 | case GRPC_CHTTP2_INITIATE_WRITE_FLOW_CONTROL_UNSTALLED_BY_SETTING: |
| 3197 | return "FLOW_CONTROL_UNSTALLED_BY_SETTING"; |
| 3198 | case GRPC_CHTTP2_INITIATE_WRITE_FLOW_CONTROL_UNSTALLED_BY_UPDATE: |
| 3199 | return "FLOW_CONTROL_UNSTALLED_BY_UPDATE"; |
| 3200 | case GRPC_CHTTP2_INITIATE_WRITE_APPLICATION_PING: |
| 3201 | return "APPLICATION_PING"; |
| 3202 | case GRPC_CHTTP2_INITIATE_WRITE_KEEPALIVE_PING: |
| 3203 | return "KEEPALIVE_PING"; |
| 3204 | case GRPC_CHTTP2_INITIATE_WRITE_TRANSPORT_FLOW_CONTROL_UNSTALLED: |
| 3205 | return "TRANSPORT_FLOW_CONTROL_UNSTALLED"; |
| 3206 | case GRPC_CHTTP2_INITIATE_WRITE_PING_RESPONSE: |
| 3207 | return "PING_RESPONSE"; |
| 3208 | case GRPC_CHTTP2_INITIATE_WRITE_FORCE_RST_STREAM: |
| 3209 | return "FORCE_RST_STREAM"; |
| 3210 | } |
| 3211 | GPR_UNREACHABLE_CODE(return "unknown"); |
| 3212 | } |
| 3213 | |
Yuchen Zeng | 5ab4ca5 | 2016-10-24 10:49:55 -0700 | [diff] [blame] | 3214 | static grpc_endpoint *chttp2_get_endpoint(grpc_exec_ctx *exec_ctx, |
| 3215 | grpc_transport *t) { |
| 3216 | return ((grpc_chttp2_transport *)t)->ep; |
| 3217 | } |
| 3218 | |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 3219 | static const grpc_transport_vtable vtable = {sizeof(grpc_chttp2_stream), |
| 3220 | "chttp2", |
| 3221 | init_stream, |
| 3222 | set_pollset, |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 3223 | set_pollset_set, |
Craig Tiller | a3b54cd | 2016-03-25 15:59:55 -0700 | [diff] [blame] | 3224 | perform_stream_op, |
| 3225 | perform_transport_op, |
| 3226 | destroy_stream, |
| 3227 | destroy_transport, |
Yuchen Zeng | 5ab4ca5 | 2016-10-24 10:49:55 -0700 | [diff] [blame] | 3228 | chttp2_get_endpoint}; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 3229 | |
Craig Tiller | a6ca571 | 2017-07-11 14:51:57 -0700 | [diff] [blame] | 3230 | static const grpc_transport_vtable *get_vtable(void) { return &vtable; } |
| 3231 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 3232 | grpc_transport *grpc_create_chttp2_transport( |
| 3233 | grpc_exec_ctx *exec_ctx, const grpc_channel_args *channel_args, |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 3234 | grpc_endpoint *ep, int is_client) { |
Yash Tibrewal | 7cdd99c | 2017-09-08 16:04:12 -0700 | [diff] [blame] | 3235 | grpc_chttp2_transport *t = |
| 3236 | (grpc_chttp2_transport *)gpr_zalloc(sizeof(grpc_chttp2_transport)); |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 3237 | init_transport(exec_ctx, t, channel_args, ep, is_client != 0); |
Craig Tiller | 1064f8b | 2015-06-25 13:52:57 -0700 | [diff] [blame] | 3238 | return &t->base; |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 3239 | } |
Craig Tiller | 825b21c | 2015-07-06 08:35:02 -0700 | [diff] [blame] | 3240 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 3241 | void grpc_chttp2_transport_start_reading(grpc_exec_ctx *exec_ctx, |
| 3242 | grpc_transport *transport, |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 3243 | grpc_slice_buffer *read_buffer) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 3244 | grpc_chttp2_transport *t = (grpc_chttp2_transport *)transport; |
Craig Tiller | dfd3a8f | 2016-08-24 09:43:45 -0700 | [diff] [blame] | 3245 | GRPC_CHTTP2_REF_TRANSPORT( |
| 3246 | t, "reading_action"); /* matches unref inside reading_action */ |
Mark D. Roth | 7d9f276 | 2016-08-04 11:06:49 -0700 | [diff] [blame] | 3247 | if (read_buffer != NULL) { |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 3248 | grpc_slice_buffer_move_into(read_buffer, &t->read_buffer); |
Mark D. Roth | 7d9f276 | 2016-08-04 11:06:49 -0700 | [diff] [blame] | 3249 | gpr_free(read_buffer); |
| 3250 | } |
ncteisen | 274bbbe | 2017-06-08 14:57:11 -0700 | [diff] [blame] | 3251 | GRPC_CLOSURE_SCHED(exec_ctx, &t->read_action_locked, GRPC_ERROR_NONE); |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3252 | } |