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 | |
Alexander Polcyn | db3e898 | 2018-02-21 16:59:24 -0800 | [diff] [blame] | 19 | #include <grpc/support/port_platform.h> |
| 20 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 21 | #include "src/core/lib/surface/channel.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 22 | |
Yash Tibrewal | fcd26bc | 2017-09-25 15:08:28 -0700 | [diff] [blame] | 23 | #include <inttypes.h> |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 24 | #include <limits.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | |
David Garcia Quintas | 73dcbda | 2016-04-23 00:17:05 -0700 | [diff] [blame] | 28 | #include <grpc/compression.h> |
Craig Tiller | 1b22b9d | 2015-07-20 13:42:22 -0700 | [diff] [blame] | 29 | #include <grpc/support/alloc.h> |
| 30 | #include <grpc/support/log.h> |
| 31 | #include <grpc/support/string_util.h> |
| 32 | |
David Garcia Quintas | 73dcbda | 2016-04-23 00:17:05 -0700 | [diff] [blame] | 33 | #include "src/core/lib/channel/channel_args.h" |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 34 | #include "src/core/lib/channel/channel_trace.h" |
ncteisen | c3c6e06 | 2018-05-09 11:10:21 -0700 | [diff] [blame] | 35 | #include "src/core/lib/channel/channelz.h" |
Craig Tiller | f1dc9c3 | 2017-09-13 14:21:27 -0700 | [diff] [blame] | 36 | #include "src/core/lib/debug/stats.h" |
Mark D. Roth | dbdf495 | 2018-01-18 11:21:12 -0800 | [diff] [blame] | 37 | #include "src/core/lib/gpr/string.h" |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 38 | #include "src/core/lib/gprpp/manual_constructor.h" |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 39 | #include "src/core/lib/gprpp/memory.h" |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 40 | #include "src/core/lib/gprpp/ref_counted_ptr.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 41 | #include "src/core/lib/iomgr/iomgr.h" |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 42 | #include "src/core/lib/slice/slice_internal.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 43 | #include "src/core/lib/surface/api_trace.h" |
| 44 | #include "src/core/lib/surface/call.h" |
| 45 | #include "src/core/lib/surface/channel_init.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 46 | #include "src/core/lib/transport/static_metadata.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 47 | |
Craig Tiller | 5d5bd22 | 2015-06-08 17:01:49 -0700 | [diff] [blame] | 48 | /** Cache grpc-status: X mdelems for X = 0..NUM_CACHED_STATUS_ELEMS. |
| 49 | * Avoids needing to take a metadata context lock for sending status |
| 50 | * if the status code is <= NUM_CACHED_STATUS_ELEMS. |
| 51 | * Sized to allow the most commonly used codes to fit in |
| 52 | * (OK, Cancelled, Unknown). */ |
Craig Tiller | 3fc8e82 | 2015-06-08 16:31:28 -0700 | [diff] [blame] | 53 | #define NUM_CACHED_STATUS_ELEMS 3 |
| 54 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 55 | typedef struct registered_call { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 56 | grpc_mdelem path; |
| 57 | grpc_mdelem authority; |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 58 | struct registered_call* next; |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 59 | } registered_call; |
| 60 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 61 | struct grpc_channel { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 62 | int is_client; |
David Garcia Quintas | 73dcbda | 2016-04-23 00:17:05 -0700 | [diff] [blame] | 63 | grpc_compression_options compression_options; |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 64 | |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 65 | gpr_atm call_size_estimate; |
| 66 | |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 67 | gpr_mu registered_call_mu; |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 68 | registered_call* registered_calls; |
David Garcia Quintas | b0dd253 | 2016-05-17 19:14:51 -0700 | [diff] [blame] | 69 | |
ncteisen | 6c987cb | 2018-06-08 09:30:12 -0700 | [diff] [blame] | 70 | grpc_core::RefCountedPtr<grpc_core::channelz::ChannelNode> channelz_channel; |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 71 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 72 | char* target; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 73 | }; |
| 74 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 75 | #define CHANNEL_STACK_FROM_CHANNEL(c) ((grpc_channel_stack*)((c) + 1)) |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 76 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 77 | static void destroy_channel(void* arg, grpc_error* error); |
Craig Tiller | 7b43561 | 2015-11-24 08:15:05 -0800 | [diff] [blame] | 78 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 79 | grpc_channel* grpc_channel_create_with_builder( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 80 | grpc_channel_stack_builder* builder, |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 81 | grpc_channel_stack_type channel_stack_type) { |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 82 | char* target = gpr_strdup(grpc_channel_stack_builder_get_target(builder)); |
| 83 | grpc_channel_args* args = grpc_channel_args_copy( |
Mark D. Roth | 5e2566e | 2016-11-18 10:53:13 -0800 | [diff] [blame] | 84 | grpc_channel_stack_builder_get_channel_arguments(builder)); |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 85 | grpc_channel* channel; |
Craig Tiller | f1dc9c3 | 2017-09-13 14:21:27 -0700 | [diff] [blame] | 86 | if (channel_stack_type == GRPC_SERVER_CHANNEL) { |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 87 | GRPC_STATS_INC_SERVER_CHANNELS_CREATED(); |
Craig Tiller | f1dc9c3 | 2017-09-13 14:21:27 -0700 | [diff] [blame] | 88 | } else { |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 89 | GRPC_STATS_INC_CLIENT_CHANNELS_CREATED(); |
Craig Tiller | f1dc9c3 | 2017-09-13 14:21:27 -0700 | [diff] [blame] | 90 | } |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 91 | grpc_error* error = grpc_channel_stack_builder_finish( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 92 | builder, sizeof(grpc_channel), 1, destroy_channel, nullptr, |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 93 | reinterpret_cast<void**>(&channel)); |
Mark D. Roth | 5e2566e | 2016-11-18 10:53:13 -0800 | [diff] [blame] | 94 | if (error != GRPC_ERROR_NONE) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 95 | gpr_log(GPR_ERROR, "channel stack builder failed: %s", |
| 96 | grpc_error_string(error)); |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 97 | GRPC_ERROR_UNREF(error); |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 98 | gpr_free(target); |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 99 | grpc_channel_args_destroy(args); |
| 100 | return channel; |
Craig Tiller | 839bebe | 2016-04-06 08:07:11 -0700 | [diff] [blame] | 101 | } |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 102 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 103 | memset(channel, 0, sizeof(*channel)); |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 104 | channel->target = target; |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 105 | channel->is_client = grpc_channel_stack_type_is_client(channel_stack_type); |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 106 | size_t channel_tracer_max_nodes = 0; // default to off |
ncteisen | c7166ae | 2018-06-15 11:04:37 -0400 | [diff] [blame] | 107 | bool channelz_enabled = false; |
ncteisen | afb9829 | 2018-06-28 18:04:24 -0700 | [diff] [blame] | 108 | // this creates the default ChannelNode. Different types of channels may |
| 109 | // override this to ensure a correct ChannelNode is created. |
| 110 | grpc_core::channelz::ChannelNodeCreationFunc channel_node_create_func = |
ncteisen | caa85b2 | 2018-07-03 11:25:41 -0700 | [diff] [blame] | 111 | grpc_core::channelz::ChannelNode::MakeChannelNode; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 112 | gpr_mu_init(&channel->registered_call_mu); |
Craig Tiller | 4782d92 | 2017-11-10 09:53:21 -0800 | [diff] [blame] | 113 | channel->registered_calls = nullptr; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 114 | |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 115 | gpr_atm_no_barrier_store( |
| 116 | &channel->call_size_estimate, |
Juanli Shen | b58f004 | 2018-05-24 17:10:14 -0700 | [diff] [blame] | 117 | (gpr_atm)CHANNEL_STACK_FROM_CHANNEL(channel)->call_stack_size + |
| 118 | grpc_call_get_initial_size_estimate()); |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 119 | |
David Garcia Quintas | 73dcbda | 2016-04-23 00:17:05 -0700 | [diff] [blame] | 120 | grpc_compression_options_init(&channel->compression_options); |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 121 | for (size_t i = 0; i < args->num_args; i++) { |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 122 | if (0 == |
| 123 | strcmp(args->args[i].key, GRPC_COMPRESSION_CHANNEL_DEFAULT_LEVEL)) { |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 124 | channel->compression_options.default_level.is_set = true; |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 125 | channel->compression_options.default_level.level = |
Muxi Yan | 9c02a3c | 2017-12-07 19:02:22 -0800 | [diff] [blame] | 126 | static_cast<grpc_compression_level>(grpc_channel_arg_get_integer( |
David Garcia Quintas | 228a514 | 2017-03-30 19:43:00 -0700 | [diff] [blame] | 127 | &args->args[i], |
Yash Tibrewal | 37fdb73 | 2017-09-25 16:45:02 -0700 | [diff] [blame] | 128 | {GRPC_COMPRESS_LEVEL_NONE, GRPC_COMPRESS_LEVEL_NONE, |
Muxi Yan | 9c02a3c | 2017-12-07 19:02:22 -0800 | [diff] [blame] | 129 | GRPC_COMPRESS_LEVEL_COUNT - 1})); |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 130 | } else if (0 == strcmp(args->args[i].key, |
| 131 | GRPC_COMPRESSION_CHANNEL_DEFAULT_ALGORITHM)) { |
| 132 | channel->compression_options.default_algorithm.is_set = true; |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 133 | channel->compression_options.default_algorithm.algorithm = |
Muxi Yan | 9c02a3c | 2017-12-07 19:02:22 -0800 | [diff] [blame] | 134 | static_cast<grpc_compression_algorithm>(grpc_channel_arg_get_integer( |
Yash Tibrewal | 37fdb73 | 2017-09-25 16:45:02 -0700 | [diff] [blame] | 135 | &args->args[i], {GRPC_COMPRESS_NONE, GRPC_COMPRESS_NONE, |
Muxi Yan | 9c02a3c | 2017-12-07 19:02:22 -0800 | [diff] [blame] | 136 | GRPC_COMPRESS_ALGORITHMS_COUNT - 1})); |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 137 | } else if (0 == |
| 138 | strcmp(args->args[i].key, |
| 139 | GRPC_COMPRESSION_CHANNEL_ENABLED_ALGORITHMS_BITSET)) { |
| 140 | channel->compression_options.enabled_algorithms_bitset = |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 141 | static_cast<uint32_t>(args->args[i].value.integer) | |
Mark D. Roth | e62605f | 2016-11-29 16:31:36 +0000 | [diff] [blame] | 142 | 0x1; /* always support no compression */ |
ncteisen | 3b42f83 | 2018-03-19 13:22:35 -0700 | [diff] [blame] | 143 | } else if (0 == strcmp(args->args[i].key, |
| 144 | GRPC_ARG_MAX_CHANNEL_TRACE_EVENTS_PER_NODE)) { |
| 145 | GPR_ASSERT(channel_tracer_max_nodes == 0); |
| 146 | // max_nodes defaults to 0 (which is off), clamped between 0 and INT_MAX |
| 147 | const grpc_integer_options options = {0, 0, INT_MAX}; |
| 148 | channel_tracer_max_nodes = |
| 149 | (size_t)grpc_channel_arg_get_integer(&args->args[i], options); |
ncteisen | c7166ae | 2018-06-15 11:04:37 -0400 | [diff] [blame] | 150 | } else if (0 == strcmp(args->args[i].key, GRPC_ARG_ENABLE_CHANNELZ)) { |
ncteisen | 664ba4f | 2018-07-11 08:42:12 -0700 | [diff] [blame] | 151 | // channelz will not be enabled by default until all concerns in |
| 152 | // https://github.com/grpc/grpc/issues/15986 are addressed. |
ncteisen | c7166ae | 2018-06-15 11:04:37 -0400 | [diff] [blame] | 153 | channelz_enabled = grpc_channel_arg_get_bool(&args->args[i], false); |
ncteisen | afb9829 | 2018-06-28 18:04:24 -0700 | [diff] [blame] | 154 | } else if (0 == strcmp(args->args[i].key, |
| 155 | GRPC_ARG_CHANNELZ_CHANNEL_NODE_CREATION_FUNC)) { |
| 156 | GPR_ASSERT(args->args[i].type == GRPC_ARG_POINTER); |
| 157 | GPR_ASSERT(args->args[i].value.pointer.p != nullptr); |
| 158 | channel_node_create_func = |
| 159 | reinterpret_cast<grpc_core::channelz::ChannelNodeCreationFunc>( |
| 160 | args->args[i].value.pointer.p); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 161 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 162 | } |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 163 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 164 | grpc_channel_args_destroy(args); |
ncteisen | 1ab1287 | 2018-06-19 17:09:53 -0700 | [diff] [blame] | 165 | if (channelz_enabled) { |
| 166 | channel->channelz_channel = |
ncteisen | afb9829 | 2018-06-28 18:04:24 -0700 | [diff] [blame] | 167 | channel_node_create_func(channel, channel_tracer_max_nodes); |
ncteisen | 1ab1287 | 2018-06-19 17:09:53 -0700 | [diff] [blame] | 168 | channel->channelz_channel->trace()->AddTraceEvent( |
| 169 | grpc_core::channelz::ChannelTrace::Severity::Info, |
| 170 | grpc_slice_from_static_string("Channel created")); |
| 171 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 172 | return channel; |
| 173 | } |
| 174 | |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 175 | static grpc_core::UniquePtr<char> get_default_authority( |
David Garcia Quintas | d043fa0 | 2018-03-23 13:58:27 -0700 | [diff] [blame] | 176 | const grpc_channel_args* input_args) { |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 177 | bool has_default_authority = false; |
| 178 | char* ssl_override = nullptr; |
| 179 | grpc_core::UniquePtr<char> default_authority; |
| 180 | const size_t num_args = input_args != nullptr ? input_args->num_args : 0; |
| 181 | for (size_t i = 0; i < num_args; ++i) { |
| 182 | if (0 == strcmp(input_args->args[i].key, GRPC_ARG_DEFAULT_AUTHORITY)) { |
| 183 | has_default_authority = true; |
| 184 | } else if (0 == strcmp(input_args->args[i].key, |
| 185 | GRPC_SSL_TARGET_NAME_OVERRIDE_ARG)) { |
David Garcia Quintas | d3ace6c | 2018-03-29 10:13:14 -0700 | [diff] [blame] | 186 | ssl_override = grpc_channel_arg_get_string(&input_args->args[i]); |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 187 | } |
| 188 | } |
| 189 | if (!has_default_authority && ssl_override != nullptr) { |
| 190 | default_authority.reset(gpr_strdup(ssl_override)); |
| 191 | } |
| 192 | return default_authority; |
| 193 | } |
| 194 | |
| 195 | static grpc_channel_args* build_channel_args( |
| 196 | const grpc_channel_args* input_args, char* default_authority) { |
| 197 | grpc_arg new_args[1]; |
| 198 | size_t num_new_args = 0; |
| 199 | if (default_authority != nullptr) { |
| 200 | new_args[num_new_args++] = grpc_channel_arg_string_create( |
| 201 | const_cast<char*>(GRPC_ARG_DEFAULT_AUTHORITY), default_authority); |
| 202 | } |
| 203 | return grpc_channel_args_copy_and_add(input_args, new_args, num_new_args); |
| 204 | } |
| 205 | |
ncteisen | 6c987cb | 2018-06-08 09:30:12 -0700 | [diff] [blame] | 206 | grpc_core::channelz::ChannelNode* grpc_channel_get_channelz_node( |
ncteisen | c3c6e06 | 2018-05-09 11:10:21 -0700 | [diff] [blame] | 207 | grpc_channel* channel) { |
| 208 | return channel->channelz_channel.get(); |
| 209 | } |
| 210 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 211 | grpc_channel* grpc_channel_create(const char* target, |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 212 | const grpc_channel_args* input_args, |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 213 | grpc_channel_stack_type channel_stack_type, |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 214 | grpc_transport* optional_transport) { |
| 215 | grpc_channel_stack_builder* builder = grpc_channel_stack_builder_create(); |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 216 | const grpc_core::UniquePtr<char> default_authority = |
David Garcia Quintas | d043fa0 | 2018-03-23 13:58:27 -0700 | [diff] [blame] | 217 | get_default_authority(input_args); |
David Garcia Quintas | c7c0d69 | 2018-03-10 17:27:15 -0800 | [diff] [blame] | 218 | grpc_channel_args* args = |
| 219 | build_channel_args(input_args, default_authority.get()); |
| 220 | grpc_channel_stack_builder_set_channel_arguments(builder, args); |
| 221 | grpc_channel_args_destroy(args); |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 222 | grpc_channel_stack_builder_set_target(builder, target); |
| 223 | grpc_channel_stack_builder_set_transport(builder, optional_transport); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 224 | if (!grpc_channel_init_create_stack(builder, channel_stack_type)) { |
| 225 | grpc_channel_stack_builder_destroy(builder); |
Craig Tiller | 4782d92 | 2017-11-10 09:53:21 -0800 | [diff] [blame] | 226 | return nullptr; |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 227 | } |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 228 | return grpc_channel_create_with_builder(builder, channel_stack_type); |
Craig Tiller | b7f35a6 | 2017-03-16 13:29:05 -0700 | [diff] [blame] | 229 | } |
| 230 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 231 | size_t grpc_channel_get_call_size_estimate(grpc_channel* channel) { |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 232 | #define ROUND_UP_SIZE 256 |
Craig Tiller | 878a7c2 | 2017-03-23 15:14:48 -0700 | [diff] [blame] | 233 | /* We round up our current estimate to the NEXT value of ROUND_UP_SIZE. |
| 234 | This ensures: |
| 235 | 1. a consistent size allocation when our estimate is drifting slowly |
| 236 | (which is common) - which tends to help most allocators reuse memory |
| 237 | 2. a small amount of allowed growth over the estimate without hitting |
| 238 | the arena size doubling case, reducing overall memory usage */ |
Noah Eisen | e1bec40 | 2018-02-09 10:23:30 -0800 | [diff] [blame] | 239 | return (static_cast<size_t>( |
| 240 | gpr_atm_no_barrier_load(&channel->call_size_estimate)) + |
Craig Tiller | b64d652 | 2017-03-23 15:17:18 -0700 | [diff] [blame] | 241 | 2 * ROUND_UP_SIZE) & |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 242 | ~static_cast<size_t>(ROUND_UP_SIZE - 1); |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 243 | } |
| 244 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 245 | void grpc_channel_update_call_size_estimate(grpc_channel* channel, |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 246 | size_t size) { |
Noah Eisen | e1bec40 | 2018-02-09 10:23:30 -0800 | [diff] [blame] | 247 | size_t cur = static_cast<size_t>( |
| 248 | gpr_atm_no_barrier_load(&channel->call_size_estimate)); |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 249 | if (cur < size) { |
| 250 | /* size grew: update estimate */ |
Noah Eisen | 4d20a66 | 2018-02-09 09:34:04 -0800 | [diff] [blame] | 251 | gpr_atm_no_barrier_cas(&channel->call_size_estimate, |
| 252 | static_cast<gpr_atm>(cur), |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 253 | static_cast<gpr_atm>(size)); |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 254 | /* if we lose: never mind, something else will likely update soon enough */ |
| 255 | } else if (cur == size) { |
| 256 | /* no change: holding pattern */ |
| 257 | } else if (cur > 0) { |
| 258 | /* size shrank: decrease estimate */ |
| 259 | gpr_atm_no_barrier_cas( |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 260 | &channel->call_size_estimate, static_cast<gpr_atm>(cur), |
| 261 | static_cast<gpr_atm>(GPR_MIN(cur - 1, (255 * cur + size) / 256))); |
Craig Tiller | a6bec8f | 2017-03-14 08:26:04 -0700 | [diff] [blame] | 262 | /* if we lose: never mind, something else will likely update soon enough */ |
| 263 | } |
| 264 | } |
| 265 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 266 | char* grpc_channel_get_target(grpc_channel* channel) { |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 267 | GRPC_API_TRACE("grpc_channel_get_target(channel=%p)", 1, (channel)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 268 | return gpr_strdup(channel->target); |
Craig Tiller | 1b22b9d | 2015-07-20 13:42:22 -0700 | [diff] [blame] | 269 | } |
| 270 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 271 | void grpc_channel_get_info(grpc_channel* channel, |
| 272 | const grpc_channel_info* channel_info) { |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 273 | grpc_core::ExecCtx exec_ctx; |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 274 | grpc_channel_element* elem = |
Mark D. Roth | b2d2488 | 2016-10-27 15:44:07 -0700 | [diff] [blame] | 275 | grpc_channel_stack_element(CHANNEL_STACK_FROM_CHANNEL(channel), 0); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 276 | elem->filter->get_channel_info(elem, channel_info); |
Mark D. Roth | b2d2488 | 2016-10-27 15:44:07 -0700 | [diff] [blame] | 277 | } |
| 278 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 279 | static grpc_call* grpc_channel_create_call_internal( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 280 | grpc_channel* channel, grpc_call* parent_call, uint32_t propagation_mask, |
| 281 | grpc_completion_queue* cq, grpc_pollset_set* pollset_set_alternative, |
| 282 | grpc_mdelem path_mdelem, grpc_mdelem authority_mdelem, |
| 283 | grpc_millis deadline) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 284 | grpc_mdelem send_metadata[2]; |
Craig Tiller | 32ca48c | 2015-09-10 11:47:15 -0700 | [diff] [blame] | 285 | size_t num_metadata = 0; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 286 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 287 | GPR_ASSERT(channel->is_client); |
Craig Tiller | 4782d92 | 2017-11-10 09:53:21 -0800 | [diff] [blame] | 288 | GPR_ASSERT(!(cq != nullptr && pollset_set_alternative != nullptr)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 289 | |
Craig Tiller | c4b56b6 | 2015-07-23 17:44:11 -0700 | [diff] [blame] | 290 | send_metadata[num_metadata++] = path_mdelem; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 291 | if (!GRPC_MDISNULL(authority_mdelem)) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 292 | send_metadata[num_metadata++] = authority_mdelem; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 293 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 294 | |
Craig Tiller | 8e21465 | 2016-08-19 09:54:31 -0700 | [diff] [blame] | 295 | grpc_call_create_args args; |
| 296 | memset(&args, 0, sizeof(args)); |
| 297 | args.channel = channel; |
Yash Tibrewal | b2a54ac | 2017-09-13 10:18:07 -0700 | [diff] [blame] | 298 | args.parent = parent_call; |
Craig Tiller | 8e21465 | 2016-08-19 09:54:31 -0700 | [diff] [blame] | 299 | args.propagation_mask = propagation_mask; |
| 300 | args.cq = cq; |
| 301 | args.pollset_set_alternative = pollset_set_alternative; |
Craig Tiller | 4782d92 | 2017-11-10 09:53:21 -0800 | [diff] [blame] | 302 | args.server_transport_data = nullptr; |
Craig Tiller | 8e21465 | 2016-08-19 09:54:31 -0700 | [diff] [blame] | 303 | args.add_initial_metadata = send_metadata; |
| 304 | args.add_initial_metadata_count = num_metadata; |
| 305 | args.send_deadline = deadline; |
| 306 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 307 | grpc_call* call; |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 308 | GRPC_LOG_IF_ERROR("call_create", grpc_call_create(&args, &call)); |
Craig Tiller | 8e21465 | 2016-08-19 09:54:31 -0700 | [diff] [blame] | 309 | return call; |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 310 | } |
klempner | c463f74 | 2014-12-19 13:03:35 -0800 | [diff] [blame] | 311 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 312 | grpc_call* grpc_channel_create_call(grpc_channel* channel, |
| 313 | grpc_call* parent_call, |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 314 | uint32_t propagation_mask, |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 315 | grpc_completion_queue* cq, |
| 316 | grpc_slice method, const grpc_slice* host, |
| 317 | gpr_timespec deadline, void* reserved) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 318 | GPR_ASSERT(!reserved); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 319 | grpc_core::ExecCtx exec_ctx; |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 320 | grpc_call* call = grpc_channel_create_call_internal( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 321 | channel, parent_call, propagation_mask, cq, nullptr, |
| 322 | grpc_mdelem_from_slices(GRPC_MDSTR_PATH, grpc_slice_ref_internal(method)), |
| 323 | host != nullptr ? grpc_mdelem_from_slices(GRPC_MDSTR_AUTHORITY, |
Craig Tiller | be98d24 | 2017-11-10 15:26:57 -0800 | [diff] [blame] | 324 | grpc_slice_ref_internal(*host)) |
| 325 | : GRPC_MDNULL, |
Craig Tiller | 9a8c3f3 | 2017-07-21 13:14:14 -0700 | [diff] [blame] | 326 | grpc_timespec_to_millis_round_up(deadline)); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 327 | |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 328 | return call; |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 331 | grpc_call* grpc_channel_create_pollset_set_call( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 332 | grpc_channel* channel, grpc_call* parent_call, uint32_t propagation_mask, |
| 333 | grpc_pollset_set* pollset_set, grpc_slice method, const grpc_slice* host, |
| 334 | grpc_millis deadline, void* reserved) { |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 335 | GPR_ASSERT(!reserved); |
| 336 | return grpc_channel_create_call_internal( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 337 | channel, parent_call, propagation_mask, nullptr, pollset_set, |
| 338 | grpc_mdelem_from_slices(GRPC_MDSTR_PATH, grpc_slice_ref_internal(method)), |
| 339 | host != nullptr ? grpc_mdelem_from_slices(GRPC_MDSTR_AUTHORITY, |
Craig Tiller | be98d24 | 2017-11-10 15:26:57 -0800 | [diff] [blame] | 340 | grpc_slice_ref_internal(*host)) |
| 341 | : GRPC_MDNULL, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 342 | deadline); |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 343 | } |
| 344 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 345 | void* grpc_channel_register_call(grpc_channel* channel, const char* method, |
| 346 | const char* host, void* reserved) { |
Noah Eisen | 4d20a66 | 2018-02-09 09:34:04 -0800 | [diff] [blame] | 347 | registered_call* rc = |
| 348 | static_cast<registered_call*>(gpr_malloc(sizeof(registered_call))); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 349 | GRPC_API_TRACE( |
| 350 | "grpc_channel_register_call(channel=%p, method=%s, host=%s, reserved=%p)", |
| 351 | 4, (channel, method, host, reserved)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 352 | GPR_ASSERT(!reserved); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 353 | grpc_core::ExecCtx exec_ctx; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 354 | |
| 355 | rc->path = grpc_mdelem_from_slices( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 356 | GRPC_MDSTR_PATH, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 357 | grpc_slice_intern(grpc_slice_from_static_string(method))); |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 358 | rc->authority = |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 359 | host ? grpc_mdelem_from_slices( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 360 | GRPC_MDSTR_AUTHORITY, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 361 | grpc_slice_intern(grpc_slice_from_static_string(host))) |
| 362 | : GRPC_MDNULL; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 363 | gpr_mu_lock(&channel->registered_call_mu); |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 364 | rc->next = channel->registered_calls; |
| 365 | channel->registered_calls = rc; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 366 | gpr_mu_unlock(&channel->registered_call_mu); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 367 | |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 368 | return rc; |
| 369 | } |
| 370 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 371 | grpc_call* grpc_channel_create_registered_call( |
| 372 | grpc_channel* channel, grpc_call* parent_call, uint32_t propagation_mask, |
| 373 | grpc_completion_queue* completion_queue, void* registered_call_handle, |
| 374 | gpr_timespec deadline, void* reserved) { |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 375 | registered_call* rc = static_cast<registered_call*>(registered_call_handle); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 376 | GRPC_API_TRACE( |
| 377 | "grpc_channel_create_registered_call(" |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 378 | "channel=%p, parent_call=%p, propagation_mask=%x, completion_queue=%p, " |
| 379 | "registered_call_handle=%p, " |
Ken Payson | 62a6c92 | 2016-06-24 11:53:54 -0700 | [diff] [blame] | 380 | "deadline=gpr_timespec { tv_sec: %" PRId64 |
| 381 | ", tv_nsec: %d, clock_type: %d }, " |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 382 | "reserved=%p)", |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 383 | 9, |
| 384 | (channel, parent_call, (unsigned)propagation_mask, completion_queue, |
| 385 | registered_call_handle, deadline.tv_sec, deadline.tv_nsec, |
| 386 | (int)deadline.clock_type, reserved)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 387 | GPR_ASSERT(!reserved); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 388 | grpc_core::ExecCtx exec_ctx; |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 389 | grpc_call* call = grpc_channel_create_call_internal( |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 390 | channel, parent_call, propagation_mask, completion_queue, nullptr, |
| 391 | GRPC_MDELEM_REF(rc->path), GRPC_MDELEM_REF(rc->authority), |
Craig Tiller | 9a8c3f3 | 2017-07-21 13:14:14 -0700 | [diff] [blame] | 392 | grpc_timespec_to_millis_round_up(deadline)); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 393 | |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 394 | return call; |
Craig Tiller | 0845337 | 2015-04-10 16:05:38 -0700 | [diff] [blame] | 395 | } |
| 396 | |
ncteisen | 9c43fc0 | 2017-06-08 16:06:23 -0700 | [diff] [blame] | 397 | #ifndef NDEBUG |
Craig Tiller | 7b43561 | 2015-11-24 08:15:05 -0800 | [diff] [blame] | 398 | #define REF_REASON reason |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 399 | #define REF_ARG , const char* reason |
Craig Tiller | 9ec2a52 | 2015-05-29 22:46:54 -0700 | [diff] [blame] | 400 | #else |
Craig Tiller | 7b43561 | 2015-11-24 08:15:05 -0800 | [diff] [blame] | 401 | #define REF_REASON "" |
| 402 | #define REF_ARG |
Craig Tiller | 9ec2a52 | 2015-05-29 22:46:54 -0700 | [diff] [blame] | 403 | #endif |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 404 | void grpc_channel_internal_ref(grpc_channel* c REF_ARG) { |
Craig Tiller | 7b43561 | 2015-11-24 08:15:05 -0800 | [diff] [blame] | 405 | GRPC_CHANNEL_STACK_REF(CHANNEL_STACK_FROM_CHANNEL(c), REF_REASON); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 406 | } |
| 407 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 408 | void grpc_channel_internal_unref(grpc_channel* c REF_ARG) { |
| 409 | GRPC_CHANNEL_STACK_UNREF(CHANNEL_STACK_FROM_CHANNEL(c), REF_REASON); |
Craig Tiller | 7b43561 | 2015-11-24 08:15:05 -0800 | [diff] [blame] | 410 | } |
| 411 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 412 | static void destroy_channel(void* arg, grpc_error* error) { |
Noah Eisen | be82e64 | 2018-02-09 09:16:55 -0800 | [diff] [blame] | 413 | grpc_channel* channel = static_cast<grpc_channel*>(arg); |
ncteisen | 1ab1287 | 2018-06-19 17:09:53 -0700 | [diff] [blame] | 414 | if (channel->channelz_channel != nullptr) { |
ncteisen | c9c1fef | 2018-06-29 12:32:45 -0700 | [diff] [blame] | 415 | channel->channelz_channel->MarkChannelDestroyed(); |
ncteisen | 1ab1287 | 2018-06-19 17:09:53 -0700 | [diff] [blame] | 416 | channel->channelz_channel.reset(); |
| 417 | } |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 418 | grpc_channel_stack_destroy(CHANNEL_STACK_FROM_CHANNEL(channel)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 419 | while (channel->registered_calls) { |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 420 | registered_call* rc = channel->registered_calls; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 421 | channel->registered_calls = rc->next; |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 422 | GRPC_MDELEM_UNREF(rc->path); |
| 423 | GRPC_MDELEM_UNREF(rc->authority); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 424 | gpr_free(rc); |
| 425 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 426 | gpr_mu_destroy(&channel->registered_call_mu); |
| 427 | gpr_free(channel->target); |
| 428 | gpr_free(channel); |
Craig Tiller | 7bd5ab1 | 2015-02-17 22:29:04 -0800 | [diff] [blame] | 429 | } |
| 430 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 431 | void grpc_channel_destroy(grpc_channel* channel) { |
Craig Tiller | 4782d92 | 2017-11-10 09:53:21 -0800 | [diff] [blame] | 432 | grpc_transport_op* op = grpc_make_transport_op(nullptr); |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 433 | grpc_channel_element* elem; |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 434 | grpc_core::ExecCtx exec_ctx; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 435 | GRPC_API_TRACE("grpc_channel_destroy(channel=%p)", 1, (channel)); |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 436 | op->disconnect_with_error = |
| 437 | GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Destroyed"); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 438 | elem = grpc_channel_stack_element(CHANNEL_STACK_FROM_CHANNEL(channel), 0); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 439 | elem->filter->start_transport_op(elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 440 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 441 | GRPC_CHANNEL_INTERNAL_UNREF(channel, "channel"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 442 | } |
| 443 | |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 444 | grpc_channel_stack* grpc_channel_get_channel_stack(grpc_channel* channel) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 445 | return CHANNEL_STACK_FROM_CHANNEL(channel); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 446 | } |
| 447 | |
David Garcia Quintas | ac09447 | 2016-05-18 20:25:57 -0700 | [diff] [blame] | 448 | grpc_compression_options grpc_channel_compression_options( |
Muxi Yan | 38fcd0c | 2017-12-06 18:52:18 -0800 | [diff] [blame] | 449 | const grpc_channel* channel) { |
David Garcia Quintas | 73dcbda | 2016-04-23 00:17:05 -0700 | [diff] [blame] | 450 | return channel->compression_options; |
| 451 | } |
| 452 | |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 453 | grpc_mdelem grpc_channel_get_reffed_status_elem(grpc_channel* channel, int i) { |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 454 | char tmp[GPR_LTOA_MIN_BUFSIZE]; |
| 455 | switch (i) { |
| 456 | case 0: |
| 457 | return GRPC_MDELEM_GRPC_STATUS_0; |
| 458 | case 1: |
| 459 | return GRPC_MDELEM_GRPC_STATUS_1; |
| 460 | case 2: |
| 461 | return GRPC_MDELEM_GRPC_STATUS_2; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 462 | } |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 463 | gpr_ltoa(i, tmp); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 464 | return grpc_mdelem_from_slices(GRPC_MDSTR_GRPC_STATUS, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 465 | grpc_slice_from_copied_string(tmp)); |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 466 | } |