Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Sree Kuchibhotla | 0190712 | 2016-04-21 15:09:13 -0700 | [diff] [blame] | 3 | * Copyright 2015-2016, Google Inc. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 34 | #include "src/core/lib/surface/server.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 35 | |
Craig Tiller | f96dfc3 | 2015-09-10 14:43:18 -0700 | [diff] [blame] | 36 | #include <limits.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 37 | #include <stdlib.h> |
| 38 | #include <string.h> |
| 39 | |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 40 | #include <grpc/support/alloc.h> |
| 41 | #include <grpc/support/log.h> |
| 42 | #include <grpc/support/string_util.h> |
| 43 | #include <grpc/support/useful.h> |
| 44 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 45 | #include "src/core/lib/channel/channel_args.h" |
| 46 | #include "src/core/lib/channel/connected_channel.h" |
| 47 | #include "src/core/lib/iomgr/iomgr.h" |
| 48 | #include "src/core/lib/support/stack_lockfree.h" |
| 49 | #include "src/core/lib/support/string.h" |
| 50 | #include "src/core/lib/surface/api_trace.h" |
| 51 | #include "src/core/lib/surface/call.h" |
| 52 | #include "src/core/lib/surface/channel.h" |
| 53 | #include "src/core/lib/surface/completion_queue.h" |
| 54 | #include "src/core/lib/surface/init.h" |
| 55 | #include "src/core/lib/transport/metadata.h" |
| 56 | #include "src/core/lib/transport/static_metadata.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 57 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 58 | typedef struct listener { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 59 | void *arg; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 60 | void (*start)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 61 | grpc_pollset **pollsets, size_t pollset_count); |
| 62 | void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 63 | grpc_closure *closure); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 64 | struct listener *next; |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 65 | grpc_closure destroy_done; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 66 | } listener; |
| 67 | |
| 68 | typedef struct call_data call_data; |
| 69 | typedef struct channel_data channel_data; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 70 | typedef struct registered_method registered_method; |
| 71 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 72 | typedef enum { BATCH_CALL, REGISTERED_CALL } requested_call_type; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 73 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 74 | typedef struct requested_call { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 75 | requested_call_type type; |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 76 | size_t cq_idx; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 77 | void *tag; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 78 | grpc_server *server; |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 79 | grpc_completion_queue *cq_bound_to_call; |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 80 | grpc_call **call; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 81 | grpc_cq_completion completion; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 82 | grpc_metadata_array *initial_metadata; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 83 | union { |
| 84 | struct { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 85 | grpc_call_details *details; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 86 | } batch; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 87 | struct { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 88 | registered_method *registered_method; |
| 89 | gpr_timespec *deadline; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 90 | grpc_byte_buffer **optional_payload; |
| 91 | } registered; |
| 92 | } data; |
| 93 | } requested_call; |
| 94 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 95 | typedef struct channel_registered_method { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 96 | registered_method *server_registered_method; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 97 | uint32_t flags; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 98 | grpc_mdstr *method; |
| 99 | grpc_mdstr *host; |
| 100 | } channel_registered_method; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 101 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 102 | struct channel_data { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 103 | grpc_server *server; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 104 | grpc_connectivity_state connectivity_state; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 105 | grpc_channel *channel; |
Craig Tiller | 418a821 | 2016-05-16 16:27:51 -0700 | [diff] [blame] | 106 | size_t cq_idx; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 107 | /* linked list of all channels on a server */ |
| 108 | channel_data *next; |
| 109 | channel_data *prev; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 110 | channel_registered_method *registered_methods; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 111 | uint32_t registered_method_slots; |
| 112 | uint32_t registered_method_max_probes; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 113 | grpc_closure finish_destroy_channel_closure; |
| 114 | grpc_closure channel_connectivity_changed; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 115 | }; |
| 116 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 117 | typedef struct shutdown_tag { |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 118 | void *tag; |
| 119 | grpc_completion_queue *cq; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 120 | grpc_cq_completion completion; |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 121 | } shutdown_tag; |
| 122 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 123 | typedef enum { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 124 | /* waiting for metadata */ |
| 125 | NOT_STARTED, |
| 126 | /* inital metadata read, not flow controlled in yet */ |
| 127 | PENDING, |
| 128 | /* flow controlled in, on completion queue */ |
| 129 | ACTIVATED, |
| 130 | /* cancelled before being queued */ |
| 131 | ZOMBIED |
| 132 | } call_state; |
| 133 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 134 | typedef struct request_matcher request_matcher; |
| 135 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 136 | struct call_data { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 137 | grpc_call *call; |
| 138 | |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 139 | /** protects state */ |
| 140 | gpr_mu mu_state; |
| 141 | /** the current state of a call - see call_state */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 142 | call_state state; |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 143 | |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 144 | grpc_mdstr *path; |
| 145 | grpc_mdstr *host; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 146 | gpr_timespec deadline; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 147 | |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 148 | grpc_completion_queue *cq_new; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 149 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 150 | grpc_metadata_batch *recv_initial_metadata; |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 151 | bool recv_idempotent_request; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 152 | grpc_metadata_array initial_metadata; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 153 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 154 | request_matcher *request_matcher; |
| 155 | grpc_byte_buffer *payload; |
| 156 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 157 | grpc_closure got_initial_metadata; |
| 158 | grpc_closure server_on_recv_initial_metadata; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 159 | grpc_closure kill_zombie_closure; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 160 | grpc_closure *on_done_recv_initial_metadata; |
David Garcia Quintas | 284488b | 2015-05-28 16:27:39 -0700 | [diff] [blame] | 161 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 162 | grpc_closure publish; |
| 163 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 164 | call_data *pending_next; |
| 165 | }; |
| 166 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 167 | struct request_matcher { |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 168 | grpc_server *server; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 169 | call_data *pending_head; |
| 170 | call_data *pending_tail; |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 171 | gpr_stack_lockfree **requests_per_cq; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 172 | }; |
| 173 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 174 | struct registered_method { |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 175 | char *method; |
| 176 | char *host; |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 177 | grpc_server_register_method_payload_handling payload_handling; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 178 | uint32_t flags; |
Craig Tiller | fa96d86 | 2016-05-21 12:39:56 -0700 | [diff] [blame] | 179 | /* one request matcher per method */ |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 180 | request_matcher request_matcher; |
| 181 | registered_method *next; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 182 | }; |
| 183 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 184 | typedef struct { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 185 | grpc_channel **channels; |
| 186 | size_t num_channels; |
| 187 | } channel_broadcaster; |
| 188 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 189 | struct grpc_server { |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 190 | grpc_channel_args *channel_args; |
| 191 | |
| 192 | grpc_completion_queue **cqs; |
| 193 | grpc_pollset **pollsets; |
| 194 | size_t cq_count; |
Craig Tiller | 88ef00e | 2016-05-17 09:31:49 -0700 | [diff] [blame] | 195 | bool started; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 196 | |
| 197 | /* The two following mutexes control access to server-state |
| 198 | mu_global controls access to non-call-related state (e.g., channel state) |
| 199 | mu_call controls access to call-related state (e.g., the call lists) |
| 200 | |
| 201 | If they are ever required to be nested, you must lock mu_global |
| 202 | before mu_call. This is currently used in shutdown processing |
| 203 | (grpc_server_shutdown_and_notify and maybe_finish_shutdown) */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 204 | gpr_mu mu_global; /* mutex for server and channel state */ |
| 205 | gpr_mu mu_call; /* mutex for call-specific state */ |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 206 | |
| 207 | registered_method *registered_methods; |
Craig Tiller | fa96d86 | 2016-05-21 12:39:56 -0700 | [diff] [blame] | 208 | /** one request matcher for unregistered methods */ |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 209 | request_matcher unregistered_request_matcher; |
Craig Tiller | 0a06cd7 | 2016-07-14 13:21:24 -0700 | [diff] [blame] | 210 | /** free list of available requested_calls_per_cq indices */ |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 211 | gpr_stack_lockfree **request_freelist_per_cq; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 212 | /** requested call backing data */ |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 213 | requested_call **requested_calls_per_cq; |
| 214 | int max_requested_calls_per_cq; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 215 | |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 216 | gpr_atm shutdown_flag; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 217 | uint8_t shutdown_published; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 218 | size_t num_shutdown_tags; |
| 219 | shutdown_tag *shutdown_tags; |
| 220 | |
| 221 | channel_data root_channel_data; |
| 222 | |
| 223 | listener *listeners; |
| 224 | int listeners_destroyed; |
| 225 | gpr_refcount internal_refcount; |
| 226 | |
| 227 | /** when did we print the last shutdown progress message */ |
| 228 | gpr_timespec last_shutdown_message_time; |
| 229 | }; |
| 230 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 231 | #define SERVER_FROM_CALL_ELEM(elem) \ |
| 232 | (((channel_data *)(elem)->channel_data)->server) |
| 233 | |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 234 | static void publish_new_rpc(grpc_exec_ctx *exec_ctx, void *calld, |
| 235 | grpc_error *error); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 236 | static void fail_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 237 | size_t cq_idx, requested_call *rc, grpc_error *error); |
Vijay Pai | 8931cdd | 2015-06-17 12:42:17 -0700 | [diff] [blame] | 238 | /* Before calling maybe_finish_shutdown, we must hold mu_global and not |
| 239 | hold mu_call */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 240 | static void maybe_finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_server *server); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 241 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 242 | /* |
| 243 | * channel broadcaster |
| 244 | */ |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 245 | |
| 246 | /* assumes server locked */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 247 | static void channel_broadcaster_init(grpc_server *s, channel_broadcaster *cb) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 248 | channel_data *c; |
| 249 | size_t count = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 250 | for (c = s->root_channel_data.next; c != &s->root_channel_data; c = c->next) { |
| 251 | count++; |
| 252 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 253 | cb->num_channels = count; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 254 | cb->channels = gpr_malloc(sizeof(*cb->channels) * cb->num_channels); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 255 | count = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 256 | for (c = s->root_channel_data.next; c != &s->root_channel_data; c = c->next) { |
| 257 | cb->channels[count++] = c->channel; |
| 258 | GRPC_CHANNEL_INTERNAL_REF(c->channel, "broadcast"); |
| 259 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 260 | } |
| 261 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 262 | struct shutdown_cleanup_args { |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 263 | grpc_closure closure; |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 264 | gpr_slice slice; |
| 265 | }; |
| 266 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 267 | static void shutdown_cleanup(grpc_exec_ctx *exec_ctx, void *arg, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 268 | grpc_error *error) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 269 | struct shutdown_cleanup_args *a = arg; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 270 | gpr_slice_unref(a->slice); |
| 271 | gpr_free(a); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 272 | } |
| 273 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 274 | static void send_shutdown(grpc_exec_ctx *exec_ctx, grpc_channel *channel, |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 275 | int send_goaway, grpc_error *send_disconnect) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 276 | grpc_transport_op op; |
| 277 | struct shutdown_cleanup_args *sc; |
| 278 | grpc_channel_element *elem; |
| 279 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 280 | memset(&op, 0, sizeof(op)); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 281 | op.send_goaway = send_goaway; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 282 | sc = gpr_malloc(sizeof(*sc)); |
| 283 | sc->slice = gpr_slice_from_copied_string("Server shutdown"); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 284 | op.goaway_message = &sc->slice; |
| 285 | op.goaway_status = GRPC_STATUS_OK; |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 286 | op.disconnect_with_error = send_disconnect; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 287 | grpc_closure_init(&sc->closure, shutdown_cleanup, sc); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 288 | op.on_consumed = &sc->closure; |
| 289 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 290 | elem = grpc_channel_stack_element(grpc_channel_get_channel_stack(channel), 0); |
| 291 | elem->filter->start_transport_op(exec_ctx, elem, &op); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 294 | static void channel_broadcaster_shutdown(grpc_exec_ctx *exec_ctx, |
| 295 | channel_broadcaster *cb, |
| 296 | int send_goaway, |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 297 | grpc_error *force_disconnect) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 298 | size_t i; |
| 299 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 300 | for (i = 0; i < cb->num_channels; i++) { |
Craig Tiller | 71f9665 | 2016-05-11 23:17:45 -0700 | [diff] [blame] | 301 | send_shutdown(exec_ctx, cb->channels[i], send_goaway, |
| 302 | GRPC_ERROR_REF(force_disconnect)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 303 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, cb->channels[i], "broadcast"); |
| 304 | } |
| 305 | gpr_free(cb->channels); |
Craig Tiller | 71f9665 | 2016-05-11 23:17:45 -0700 | [diff] [blame] | 306 | GRPC_ERROR_UNREF(force_disconnect); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 307 | } |
| 308 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 309 | /* |
| 310 | * request_matcher |
| 311 | */ |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 312 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 313 | static void request_matcher_init(request_matcher *rm, size_t entries, |
| 314 | grpc_server *server) { |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 315 | memset(rm, 0, sizeof(*rm)); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 316 | rm->server = server; |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 317 | rm->requests_per_cq = |
| 318 | gpr_malloc(sizeof(*rm->requests_per_cq) * server->cq_count); |
| 319 | for (size_t i = 0; i < server->cq_count; i++) { |
| 320 | rm->requests_per_cq[i] = gpr_stack_lockfree_create(entries); |
| 321 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 322 | } |
| 323 | |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 324 | static void request_matcher_destroy(request_matcher *rm) { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 325 | for (size_t i = 0; i < rm->server->cq_count; i++) { |
| 326 | GPR_ASSERT(gpr_stack_lockfree_pop(rm->requests_per_cq[i]) == -1); |
| 327 | gpr_stack_lockfree_destroy(rm->requests_per_cq[i]); |
| 328 | } |
| 329 | gpr_free(rm->requests_per_cq); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 330 | } |
| 331 | |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 332 | static void kill_zombie(grpc_exec_ctx *exec_ctx, void *elem, |
| 333 | grpc_error *error) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 334 | grpc_call_destroy(grpc_call_from_top_element(elem)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 335 | } |
| 336 | |
Craig Tiller | 8dc0971 | 2015-09-24 13:58:16 -0700 | [diff] [blame] | 337 | static void request_matcher_zombify_all_pending_calls(grpc_exec_ctx *exec_ctx, |
| 338 | request_matcher *rm) { |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 339 | while (rm->pending_head) { |
| 340 | call_data *calld = rm->pending_head; |
| 341 | rm->pending_head = calld->pending_next; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 342 | gpr_mu_lock(&calld->mu_state); |
| 343 | calld->state = ZOMBIED; |
| 344 | gpr_mu_unlock(&calld->mu_state); |
| 345 | grpc_closure_init( |
| 346 | &calld->kill_zombie_closure, kill_zombie, |
| 347 | grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0)); |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 348 | grpc_exec_ctx_sched(exec_ctx, &calld->kill_zombie_closure, GRPC_ERROR_NONE, |
| 349 | NULL); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 350 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 351 | } |
| 352 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 353 | static void request_matcher_kill_requests(grpc_exec_ctx *exec_ctx, |
| 354 | grpc_server *server, |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 355 | request_matcher *rm, |
| 356 | grpc_error *error) { |
Craig Tiller | 1191e21 | 2015-07-30 14:49:02 -0700 | [diff] [blame] | 357 | int request_id; |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 358 | for (size_t i = 0; i < server->cq_count; i++) { |
| 359 | while ((request_id = gpr_stack_lockfree_pop(rm->requests_per_cq[i])) != |
| 360 | -1) { |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 361 | fail_call(exec_ctx, server, i, |
| 362 | &server->requested_calls_per_cq[i][request_id], |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 363 | GRPC_ERROR_REF(error)); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 364 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 365 | } |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 366 | GRPC_ERROR_UNREF(error); |
Craig Tiller | 1191e21 | 2015-07-30 14:49:02 -0700 | [diff] [blame] | 367 | } |
| 368 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 369 | /* |
| 370 | * server proper |
| 371 | */ |
| 372 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 373 | static void server_ref(grpc_server *server) { |
| 374 | gpr_ref(&server->internal_refcount); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 375 | } |
| 376 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 377 | static void server_delete(grpc_exec_ctx *exec_ctx, grpc_server *server) { |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 378 | registered_method *rm; |
Craig Tiller | 8950461 | 2015-04-27 11:48:46 -0700 | [diff] [blame] | 379 | size_t i; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 380 | grpc_channel_args_destroy(server->channel_args); |
| 381 | gpr_mu_destroy(&server->mu_global); |
| 382 | gpr_mu_destroy(&server->mu_call); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 383 | while ((rm = server->registered_methods) != NULL) { |
| 384 | server->registered_methods = rm->next; |
Craig Tiller | 88ef00e | 2016-05-17 09:31:49 -0700 | [diff] [blame] | 385 | if (server->started) { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 386 | request_matcher_destroy(&rm->request_matcher); |
Craig Tiller | 418a821 | 2016-05-16 16:27:51 -0700 | [diff] [blame] | 387 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 388 | gpr_free(rm->method); |
| 389 | gpr_free(rm->host); |
| 390 | gpr_free(rm); |
| 391 | } |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 392 | if (server->started) { |
| 393 | request_matcher_destroy(&server->unregistered_request_matcher); |
| 394 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 395 | for (i = 0; i < server->cq_count; i++) { |
| 396 | GRPC_CQ_INTERNAL_UNREF(server->cqs[i], "server"); |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 397 | if (server->started) { |
| 398 | gpr_stack_lockfree_destroy(server->request_freelist_per_cq[i]); |
| 399 | gpr_free(server->requested_calls_per_cq[i]); |
| 400 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 401 | } |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 402 | gpr_free(server->request_freelist_per_cq); |
| 403 | gpr_free(server->requested_calls_per_cq); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 404 | gpr_free(server->cqs); |
| 405 | gpr_free(server->pollsets); |
| 406 | gpr_free(server->shutdown_tags); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 407 | gpr_free(server); |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 408 | } |
| 409 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 410 | static void server_unref(grpc_exec_ctx *exec_ctx, grpc_server *server) { |
| 411 | if (gpr_unref(&server->internal_refcount)) { |
| 412 | server_delete(exec_ctx, server); |
| 413 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 414 | } |
| 415 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 416 | static int is_channel_orphaned(channel_data *chand) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 417 | return chand->next == chand; |
| 418 | } |
| 419 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 420 | static void orphan_channel(channel_data *chand) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 421 | chand->next->prev = chand->prev; |
| 422 | chand->prev->next = chand->next; |
| 423 | chand->next = chand->prev = chand; |
| 424 | } |
| 425 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 426 | static void finish_destroy_channel(grpc_exec_ctx *exec_ctx, void *cd, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 427 | grpc_error *error) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 428 | channel_data *chand = cd; |
| 429 | grpc_server *server = chand->server; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 430 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, chand->channel, "server"); |
| 431 | server_unref(exec_ctx, server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 432 | } |
| 433 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 434 | static void destroy_channel(grpc_exec_ctx *exec_ctx, channel_data *chand) { |
| 435 | if (is_channel_orphaned(chand)) return; |
| 436 | GPR_ASSERT(chand->server != NULL); |
| 437 | orphan_channel(chand); |
| 438 | server_ref(chand->server); |
| 439 | maybe_finish_shutdown(exec_ctx, chand->server); |
David Garcia Quintas | 284488b | 2015-05-28 16:27:39 -0700 | [diff] [blame] | 440 | chand->finish_destroy_channel_closure.cb = finish_destroy_channel; |
| 441 | chand->finish_destroy_channel_closure.cb_arg = chand; |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 442 | |
| 443 | grpc_transport_op op; |
| 444 | memset(&op, 0, sizeof(op)); |
| 445 | op.set_accept_stream = true; |
| 446 | op.on_consumed = &chand->finish_destroy_channel_closure; |
| 447 | grpc_channel_next_op(exec_ctx, |
| 448 | grpc_channel_stack_element( |
| 449 | grpc_channel_get_channel_stack(chand->channel), 0), |
| 450 | &op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 451 | } |
| 452 | |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 453 | static void cpstr(char **dest, size_t *capacity, grpc_mdstr *value) { |
| 454 | gpr_slice slice = value->slice; |
| 455 | size_t len = GPR_SLICE_LENGTH(slice); |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 456 | |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 457 | if (len + 1 > *capacity) { |
| 458 | *capacity = GPR_MAX(len + 1, *capacity * 2); |
| 459 | *dest = gpr_realloc(*dest, *capacity); |
| 460 | } |
| 461 | memcpy(*dest, grpc_mdstr_as_c_string(value), len + 1); |
| 462 | } |
| 463 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 464 | static void done_request_event(grpc_exec_ctx *exec_ctx, void *req, |
| 465 | grpc_cq_completion *c) { |
| 466 | requested_call *rc = req; |
| 467 | grpc_server *server = rc->server; |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 468 | |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 469 | if (rc >= server->requested_calls_per_cq[rc->cq_idx] && |
| 470 | rc < server->requested_calls_per_cq[rc->cq_idx] + |
| 471 | server->max_requested_calls_per_cq) { |
| 472 | GPR_ASSERT(rc - server->requested_calls_per_cq[rc->cq_idx] <= INT_MAX); |
| 473 | gpr_stack_lockfree_push( |
| 474 | server->request_freelist_per_cq[rc->cq_idx], |
| 475 | (int)(rc - server->requested_calls_per_cq[rc->cq_idx])); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 476 | } else { |
| 477 | gpr_free(req); |
| 478 | } |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 479 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 480 | server_unref(exec_ctx, server); |
| 481 | } |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 482 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 483 | static void publish_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 484 | call_data *calld, size_t cq_idx, requested_call *rc) { |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 485 | grpc_call_set_completion_queue(exec_ctx, calld->call, rc->cq_bound_to_call); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 486 | grpc_call *call = calld->call; |
| 487 | *rc->call = call; |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 488 | calld->cq_new = server->cqs[cq_idx]; |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 489 | GPR_SWAP(grpc_metadata_array, *rc->initial_metadata, calld->initial_metadata); |
| 490 | switch (rc->type) { |
| 491 | case BATCH_CALL: |
| 492 | GPR_ASSERT(calld->host != NULL); |
| 493 | GPR_ASSERT(calld->path != NULL); |
| 494 | cpstr(&rc->data.batch.details->host, |
| 495 | &rc->data.batch.details->host_capacity, calld->host); |
| 496 | cpstr(&rc->data.batch.details->method, |
| 497 | &rc->data.batch.details->method_capacity, calld->path); |
| 498 | rc->data.batch.details->deadline = calld->deadline; |
| 499 | rc->data.batch.details->flags = |
| 500 | 0 | (calld->recv_idempotent_request |
| 501 | ? GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST |
| 502 | : 0); |
| 503 | break; |
| 504 | case REGISTERED_CALL: |
| 505 | *rc->data.registered.deadline = calld->deadline; |
| 506 | if (rc->data.registered.optional_payload) { |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 507 | *rc->data.registered.optional_payload = calld->payload; |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 508 | } |
| 509 | break; |
| 510 | default: |
| 511 | GPR_UNREACHABLE_CODE(return ); |
| 512 | } |
| 513 | |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 514 | grpc_call_element *elem = |
| 515 | grpc_call_stack_element(grpc_call_get_call_stack(call), 0); |
| 516 | channel_data *chand = elem->channel_data; |
| 517 | server_ref(chand->server); |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 518 | grpc_cq_end_op(exec_ctx, calld->cq_new, rc->tag, GRPC_ERROR_NONE, |
| 519 | done_request_event, rc, &rc->completion); |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 520 | } |
| 521 | |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 522 | static void publish_new_rpc(grpc_exec_ctx *exec_ctx, void *arg, |
| 523 | grpc_error *error) { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 524 | grpc_call_element *call_elem = arg; |
| 525 | call_data *calld = call_elem->call_data; |
| 526 | channel_data *chand = call_elem->channel_data; |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 527 | request_matcher *rm = calld->request_matcher; |
| 528 | grpc_server *server = rm->server; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 529 | |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 530 | if (error != GRPC_ERROR_NONE || gpr_atm_acq_load(&server->shutdown_flag)) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 531 | gpr_mu_lock(&calld->mu_state); |
| 532 | calld->state = ZOMBIED; |
| 533 | gpr_mu_unlock(&calld->mu_state); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 534 | grpc_closure_init( |
| 535 | &calld->kill_zombie_closure, kill_zombie, |
| 536 | grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0)); |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 537 | grpc_exec_ctx_sched(exec_ctx, &calld->kill_zombie_closure, error, NULL); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 538 | return; |
| 539 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 540 | |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 541 | for (size_t i = 0; i < server->cq_count; i++) { |
| 542 | size_t cq_idx = (chand->cq_idx + i) % server->cq_count; |
| 543 | int request_id = gpr_stack_lockfree_pop(rm->requests_per_cq[cq_idx]); |
| 544 | if (request_id == -1) { |
| 545 | continue; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 546 | } else { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 547 | gpr_mu_lock(&calld->mu_state); |
| 548 | calld->state = ACTIVATED; |
| 549 | gpr_mu_unlock(&calld->mu_state); |
| 550 | publish_call(exec_ctx, server, calld, cq_idx, |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 551 | &server->requested_calls_per_cq[cq_idx][request_id]); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 552 | return; /* early out */ |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 553 | } |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 554 | } |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 555 | |
| 556 | /* no cq to take the request found: queue it on the slow list */ |
| 557 | gpr_mu_lock(&server->mu_call); |
| 558 | gpr_mu_lock(&calld->mu_state); |
| 559 | calld->state = PENDING; |
| 560 | gpr_mu_unlock(&calld->mu_state); |
| 561 | if (rm->pending_head == NULL) { |
| 562 | rm->pending_tail = rm->pending_head = calld; |
| 563 | } else { |
| 564 | rm->pending_tail->pending_next = calld; |
| 565 | rm->pending_tail = calld; |
| 566 | } |
| 567 | calld->pending_next = NULL; |
| 568 | gpr_mu_unlock(&server->mu_call); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 569 | } |
| 570 | |
| 571 | static void finish_start_new_rpc( |
| 572 | grpc_exec_ctx *exec_ctx, grpc_server *server, grpc_call_element *elem, |
| 573 | request_matcher *rm, |
| 574 | grpc_server_register_method_payload_handling payload_handling) { |
| 575 | call_data *calld = elem->call_data; |
| 576 | |
| 577 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
| 578 | gpr_mu_lock(&calld->mu_state); |
| 579 | calld->state = ZOMBIED; |
| 580 | gpr_mu_unlock(&calld->mu_state); |
| 581 | grpc_closure_init(&calld->kill_zombie_closure, kill_zombie, elem); |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 582 | grpc_exec_ctx_sched(exec_ctx, &calld->kill_zombie_closure, GRPC_ERROR_NONE, |
| 583 | NULL); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 584 | return; |
| 585 | } |
| 586 | |
| 587 | calld->request_matcher = rm; |
| 588 | |
| 589 | switch (payload_handling) { |
| 590 | case GRPC_SRM_PAYLOAD_NONE: |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 591 | publish_new_rpc(exec_ctx, elem, GRPC_ERROR_NONE); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 592 | break; |
| 593 | case GRPC_SRM_PAYLOAD_READ_INITIAL_BYTE_BUFFER: { |
| 594 | grpc_op op; |
| 595 | memset(&op, 0, sizeof(op)); |
| 596 | op.op = GRPC_OP_RECV_MESSAGE; |
| 597 | op.data.recv_message = &calld->payload; |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 598 | grpc_closure_init(&calld->publish, publish_new_rpc, elem); |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 599 | grpc_call_start_batch_and_execute(exec_ctx, calld->call, &op, 1, |
| 600 | &calld->publish); |
| 601 | break; |
| 602 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 603 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 604 | } |
| 605 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 606 | static void start_new_rpc(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 607 | channel_data *chand = elem->channel_data; |
| 608 | call_data *calld = elem->call_data; |
| 609 | grpc_server *server = chand->server; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 610 | uint32_t i; |
| 611 | uint32_t hash; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 612 | channel_registered_method *rm; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 613 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 614 | if (chand->registered_methods && calld->path && calld->host) { |
| 615 | /* TODO(ctiller): unify these two searches */ |
| 616 | /* check for an exact match with host */ |
| 617 | hash = GRPC_MDSTR_KV_HASH(calld->host->hash, calld->path->hash); |
| 618 | for (i = 0; i <= chand->registered_method_max_probes; i++) { |
| 619 | rm = &chand->registered_methods[(hash + i) % |
| 620 | chand->registered_method_slots]; |
| 621 | if (!rm) break; |
| 622 | if (rm->host != calld->host) continue; |
| 623 | if (rm->method != calld->path) continue; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 624 | if ((rm->flags & GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST) && |
| 625 | !calld->recv_idempotent_request) |
| 626 | continue; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 627 | finish_start_new_rpc(exec_ctx, server, elem, |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 628 | &rm->server_registered_method->request_matcher, |
| 629 | rm->server_registered_method->payload_handling); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 630 | return; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 631 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 632 | /* check for a wildcard method definition (no host set) */ |
| 633 | hash = GRPC_MDSTR_KV_HASH(0, calld->path->hash); |
| 634 | for (i = 0; i <= chand->registered_method_max_probes; i++) { |
| 635 | rm = &chand->registered_methods[(hash + i) % |
| 636 | chand->registered_method_slots]; |
| 637 | if (!rm) break; |
| 638 | if (rm->host != NULL) continue; |
| 639 | if (rm->method != calld->path) continue; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 640 | if ((rm->flags & GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST) && |
| 641 | !calld->recv_idempotent_request) |
| 642 | continue; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 643 | finish_start_new_rpc(exec_ctx, server, elem, |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 644 | &rm->server_registered_method->request_matcher, |
| 645 | rm->server_registered_method->payload_handling); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 646 | return; |
| 647 | } |
| 648 | } |
| 649 | finish_start_new_rpc(exec_ctx, server, elem, |
Craig Tiller | 8851269 | 2016-04-04 09:32:52 -0700 | [diff] [blame] | 650 | &server->unregistered_request_matcher, |
| 651 | GRPC_SRM_PAYLOAD_NONE); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 652 | } |
| 653 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 654 | static int num_listeners(grpc_server *server) { |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 655 | listener *l; |
| 656 | int n = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 657 | for (l = server->listeners; l; l = l->next) { |
| 658 | n++; |
| 659 | } |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 660 | return n; |
| 661 | } |
| 662 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 663 | static void done_shutdown_event(grpc_exec_ctx *exec_ctx, void *server, |
| 664 | grpc_cq_completion *completion) { |
| 665 | server_unref(exec_ctx, server); |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 666 | } |
| 667 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 668 | static int num_channels(grpc_server *server) { |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 669 | channel_data *chand; |
| 670 | int n = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 671 | for (chand = server->root_channel_data.next; |
| 672 | chand != &server->root_channel_data; chand = chand->next) { |
| 673 | n++; |
| 674 | } |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 675 | return n; |
| 676 | } |
| 677 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 678 | static void kill_pending_work_locked(grpc_exec_ctx *exec_ctx, |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 679 | grpc_server *server, grpc_error *error) { |
Craig Tiller | 88ef00e | 2016-05-17 09:31:49 -0700 | [diff] [blame] | 680 | if (server->started) { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 681 | request_matcher_kill_requests(exec_ctx, server, |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 682 | &server->unregistered_request_matcher, |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 683 | GRPC_ERROR_REF(error)); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 684 | request_matcher_zombify_all_pending_calls( |
| 685 | exec_ctx, &server->unregistered_request_matcher); |
| 686 | for (registered_method *rm = server->registered_methods; rm; |
| 687 | rm = rm->next) { |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 688 | request_matcher_kill_requests(exec_ctx, server, &rm->request_matcher, |
| 689 | GRPC_ERROR_REF(error)); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 690 | request_matcher_zombify_all_pending_calls(exec_ctx, &rm->request_matcher); |
Craig Tiller | 418a821 | 2016-05-16 16:27:51 -0700 | [diff] [blame] | 691 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 692 | } |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 693 | GRPC_ERROR_UNREF(error); |
Craig Tiller | dc62772 | 2015-05-26 15:27:02 -0700 | [diff] [blame] | 694 | } |
| 695 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 696 | static void maybe_finish_shutdown(grpc_exec_ctx *exec_ctx, |
| 697 | grpc_server *server) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 698 | size_t i; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 699 | if (!gpr_atm_acq_load(&server->shutdown_flag) || server->shutdown_published) { |
| 700 | return; |
| 701 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 702 | |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 703 | kill_pending_work_locked(exec_ctx, server, |
| 704 | GRPC_ERROR_CREATE("Server Shutdown")); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 705 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 706 | if (server->root_channel_data.next != &server->root_channel_data || |
| 707 | server->listeners_destroyed < num_listeners(server)) { |
| 708 | if (gpr_time_cmp(gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), |
| 709 | server->last_shutdown_message_time), |
| 710 | gpr_time_from_seconds(1, GPR_TIMESPAN)) >= 0) { |
| 711 | server->last_shutdown_message_time = gpr_now(GPR_CLOCK_REALTIME); |
| 712 | gpr_log(GPR_DEBUG, |
| 713 | "Waiting for %d channels and %d/%d listeners to be destroyed" |
| 714 | " before shutting down server", |
| 715 | num_channels(server), |
| 716 | num_listeners(server) - server->listeners_destroyed, |
| 717 | num_listeners(server)); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 718 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 719 | return; |
| 720 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 721 | server->shutdown_published = 1; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 722 | for (i = 0; i < server->num_shutdown_tags; i++) { |
| 723 | server_ref(server); |
| 724 | grpc_cq_end_op(exec_ctx, server->shutdown_tags[i].cq, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 725 | server->shutdown_tags[i].tag, GRPC_ERROR_NONE, |
| 726 | done_shutdown_event, server, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 727 | &server->shutdown_tags[i].completion); |
| 728 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 729 | } |
| 730 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 731 | static grpc_mdelem *server_filter(void *user_data, grpc_mdelem *md) { |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 732 | grpc_call_element *elem = user_data; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 733 | call_data *calld = elem->call_data; |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 734 | if (md->key == GRPC_MDSTR_PATH) { |
Craig Tiller | 9cac2a1 | 2016-04-04 20:56:56 -0700 | [diff] [blame] | 735 | if (calld->path == NULL) { |
| 736 | calld->path = GRPC_MDSTR_REF(md->value); |
| 737 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 738 | return NULL; |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 739 | } else if (md->key == GRPC_MDSTR_AUTHORITY) { |
Craig Tiller | 9cac2a1 | 2016-04-04 20:56:56 -0700 | [diff] [blame] | 740 | if (calld->host == NULL) { |
| 741 | calld->host = GRPC_MDSTR_REF(md->value); |
| 742 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 743 | return NULL; |
| 744 | } |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 745 | return md; |
| 746 | } |
| 747 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 748 | static void server_on_recv_initial_metadata(grpc_exec_ctx *exec_ctx, void *ptr, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 749 | grpc_error *error) { |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 750 | grpc_call_element *elem = ptr; |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 751 | call_data *calld = elem->call_data; |
Craig Tiller | 94329d0 | 2015-07-23 09:52:11 -0700 | [diff] [blame] | 752 | gpr_timespec op_deadline; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 753 | |
Craig Tiller | 8e5c934 | 2016-05-12 15:34:59 -0700 | [diff] [blame] | 754 | GRPC_ERROR_REF(error); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 755 | grpc_metadata_batch_filter(calld->recv_initial_metadata, server_filter, elem); |
| 756 | op_deadline = calld->recv_initial_metadata->deadline; |
| 757 | if (0 != gpr_time_cmp(op_deadline, gpr_inf_future(op_deadline.clock_type))) { |
| 758 | calld->deadline = op_deadline; |
| 759 | } |
| 760 | if (calld->host && calld->path) { |
| 761 | /* do nothing */ |
| 762 | } else { |
Craig Tiller | 8e5c934 | 2016-05-12 15:34:59 -0700 | [diff] [blame] | 763 | GRPC_ERROR_UNREF(error); |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 764 | error = |
| 765 | GRPC_ERROR_CREATE_REFERENCING("Missing :authority or :path", &error, 1); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 766 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 767 | |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 768 | grpc_exec_ctx_sched(exec_ctx, calld->on_done_recv_initial_metadata, error, |
| 769 | NULL); |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 770 | } |
| 771 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 772 | static void server_mutate_op(grpc_call_element *elem, |
| 773 | grpc_transport_stream_op *op) { |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 774 | call_data *calld = elem->call_data; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 775 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 776 | if (op->recv_initial_metadata != NULL) { |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 777 | GPR_ASSERT(op->recv_idempotent_request == NULL); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 778 | calld->recv_initial_metadata = op->recv_initial_metadata; |
Craig Tiller | a44cbfc | 2016-02-03 16:02:49 -0800 | [diff] [blame] | 779 | calld->on_done_recv_initial_metadata = op->recv_initial_metadata_ready; |
| 780 | op->recv_initial_metadata_ready = &calld->server_on_recv_initial_metadata; |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 781 | op->recv_idempotent_request = &calld->recv_idempotent_request; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 782 | } |
Craig Tiller | 50d9db5 | 2015-04-23 10:52:14 -0700 | [diff] [blame] | 783 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 784 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 785 | static void server_start_transport_stream_op(grpc_exec_ctx *exec_ctx, |
| 786 | grpc_call_element *elem, |
| 787 | grpc_transport_stream_op *op) { |
| 788 | GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
| 789 | server_mutate_op(elem, op); |
| 790 | grpc_call_next_op(exec_ctx, elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 791 | } |
| 792 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 793 | static void got_initial_metadata(grpc_exec_ctx *exec_ctx, void *ptr, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 794 | grpc_error *error) { |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 795 | grpc_call_element *elem = ptr; |
| 796 | call_data *calld = elem->call_data; |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 797 | if (error == GRPC_ERROR_NONE) { |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 798 | start_new_rpc(exec_ctx, elem); |
| 799 | } else { |
| 800 | gpr_mu_lock(&calld->mu_state); |
| 801 | if (calld->state == NOT_STARTED) { |
| 802 | calld->state = ZOMBIED; |
| 803 | gpr_mu_unlock(&calld->mu_state); |
| 804 | grpc_closure_init(&calld->kill_zombie_closure, kill_zombie, elem); |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 805 | grpc_exec_ctx_sched(exec_ctx, &calld->kill_zombie_closure, |
| 806 | GRPC_ERROR_NONE, NULL); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 807 | } else if (calld->state == PENDING) { |
| 808 | calld->state = ZOMBIED; |
| 809 | gpr_mu_unlock(&calld->mu_state); |
| 810 | /* zombied call will be destroyed when it's removed from the pending |
| 811 | queue... later */ |
| 812 | } else { |
| 813 | gpr_mu_unlock(&calld->mu_state); |
| 814 | } |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | static void accept_stream(grpc_exec_ctx *exec_ctx, void *cd, |
| 819 | grpc_transport *transport, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 820 | const void *transport_server_data) { |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 821 | channel_data *chand = cd; |
| 822 | /* create a call */ |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 823 | grpc_call *call = grpc_call_create(chand->channel, NULL, 0, NULL, NULL, |
| 824 | transport_server_data, NULL, 0, |
| 825 | gpr_inf_future(GPR_CLOCK_MONOTONIC)); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 826 | grpc_call_element *elem = |
| 827 | grpc_call_stack_element(grpc_call_get_call_stack(call), 0); |
| 828 | call_data *calld = elem->call_data; |
| 829 | grpc_op op; |
| 830 | memset(&op, 0, sizeof(op)); |
| 831 | op.op = GRPC_OP_RECV_INITIAL_METADATA; |
| 832 | op.data.recv_initial_metadata = &calld->initial_metadata; |
| 833 | grpc_closure_init(&calld->got_initial_metadata, got_initial_metadata, elem); |
| 834 | grpc_call_start_batch_and_execute(exec_ctx, call, &op, 1, |
| 835 | &calld->got_initial_metadata); |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 836 | } |
| 837 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 838 | static void channel_connectivity_changed(grpc_exec_ctx *exec_ctx, void *cd, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 839 | grpc_error *error) { |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 840 | channel_data *chand = cd; |
| 841 | grpc_server *server = chand->server; |
Craig Tiller | 48ed92e | 2016-06-02 11:07:12 -0700 | [diff] [blame] | 842 | if (chand->connectivity_state != GRPC_CHANNEL_SHUTDOWN) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 843 | grpc_transport_op op; |
| 844 | memset(&op, 0, sizeof(op)); |
| 845 | op.on_connectivity_state_change = &chand->channel_connectivity_changed, |
| 846 | op.connectivity_state = &chand->connectivity_state; |
| 847 | grpc_channel_next_op(exec_ctx, |
| 848 | grpc_channel_stack_element( |
| 849 | grpc_channel_get_channel_stack(chand->channel), 0), |
| 850 | &op); |
| 851 | } else { |
| 852 | gpr_mu_lock(&server->mu_global); |
| 853 | destroy_channel(exec_ctx, chand); |
| 854 | gpr_mu_unlock(&server->mu_global); |
| 855 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, chand->channel, "connectivity"); |
| 856 | } |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 857 | } |
| 858 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 859 | static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 860 | grpc_call_element_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 861 | call_data *calld = elem->call_data; |
| 862 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 863 | memset(calld, 0, sizeof(call_data)); |
| 864 | calld->deadline = gpr_inf_future(GPR_CLOCK_REALTIME); |
| 865 | calld->call = grpc_call_from_top_element(elem); |
| 866 | gpr_mu_init(&calld->mu_state); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 867 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 868 | grpc_closure_init(&calld->server_on_recv_initial_metadata, |
| 869 | server_on_recv_initial_metadata, elem); |
Craig Tiller | 1e6facb | 2015-06-11 22:47:11 -0700 | [diff] [blame] | 870 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 871 | server_ref(chand->server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 872 | } |
| 873 | |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 874 | static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
David Garcia Quintas | 5dde14c | 2016-07-28 17:29:27 -0700 | [diff] [blame] | 875 | const grpc_call_final_info *final_info, |
| 876 | void *ignored) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 877 | channel_data *chand = elem->channel_data; |
Craig Tiller | db7db99 | 2015-01-29 11:19:01 -0800 | [diff] [blame] | 878 | call_data *calld = elem->call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 879 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 880 | GPR_ASSERT(calld->state != PENDING); |
Craig Tiller | 092d8d1 | 2015-07-04 22:35:00 -0700 | [diff] [blame] | 881 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 882 | if (calld->host) { |
| 883 | GRPC_MDSTR_UNREF(calld->host); |
| 884 | } |
| 885 | if (calld->path) { |
| 886 | GRPC_MDSTR_UNREF(calld->path); |
| 887 | } |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 888 | grpc_metadata_array_destroy(&calld->initial_metadata); |
Craig Tiller | 4df31a6 | 2015-01-30 09:44:31 -0800 | [diff] [blame] | 889 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 890 | gpr_mu_destroy(&calld->mu_state); |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 891 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 892 | server_unref(exec_ctx, chand->server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 893 | } |
| 894 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 895 | static void init_channel_elem(grpc_exec_ctx *exec_ctx, |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 896 | grpc_channel_element *elem, |
| 897 | grpc_channel_element_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 898 | channel_data *chand = elem->channel_data; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 899 | GPR_ASSERT(args->is_first); |
| 900 | GPR_ASSERT(!args->is_last); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 901 | chand->server = NULL; |
| 902 | chand->channel = NULL; |
| 903 | chand->next = chand->prev = chand; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 904 | chand->registered_methods = NULL; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 905 | chand->connectivity_state = GRPC_CHANNEL_IDLE; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 906 | grpc_closure_init(&chand->channel_connectivity_changed, |
| 907 | channel_connectivity_changed, chand); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 908 | } |
| 909 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 910 | static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
| 911 | grpc_channel_element *elem) { |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 912 | size_t i; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 913 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 914 | if (chand->registered_methods) { |
| 915 | for (i = 0; i < chand->registered_method_slots; i++) { |
| 916 | if (chand->registered_methods[i].method) { |
| 917 | GRPC_MDSTR_UNREF(chand->registered_methods[i].method); |
| 918 | } |
| 919 | if (chand->registered_methods[i].host) { |
| 920 | GRPC_MDSTR_UNREF(chand->registered_methods[i].host); |
| 921 | } |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 922 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 923 | gpr_free(chand->registered_methods); |
| 924 | } |
| 925 | if (chand->server) { |
| 926 | gpr_mu_lock(&chand->server->mu_global); |
| 927 | chand->next->prev = chand->prev; |
| 928 | chand->prev->next = chand->next; |
| 929 | chand->next = chand->prev = chand; |
| 930 | maybe_finish_shutdown(exec_ctx, chand->server); |
| 931 | gpr_mu_unlock(&chand->server->mu_global); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 932 | server_unref(exec_ctx, chand->server); |
| 933 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 934 | } |
| 935 | |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 936 | const grpc_channel_filter grpc_server_top_filter = { |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 937 | server_start_transport_stream_op, |
| 938 | grpc_channel_next_op, |
| 939 | sizeof(call_data), |
| 940 | init_call_elem, |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 941 | grpc_call_stack_ignore_set_pollset_or_pollset_set, |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 942 | destroy_call_elem, |
| 943 | sizeof(channel_data), |
| 944 | init_channel_elem, |
| 945 | destroy_channel_elem, |
| 946 | grpc_call_next_get_peer, |
| 947 | "server", |
Craig Tiller | 9f28ac2 | 2015-01-27 17:01:29 -0800 | [diff] [blame] | 948 | }; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 949 | |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 950 | static void register_completion_queue(grpc_server *server, |
| 951 | grpc_completion_queue *cq, |
| 952 | bool is_non_listening, void *reserved) { |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 953 | size_t i, n; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 954 | GPR_ASSERT(!reserved); |
| 955 | for (i = 0; i < server->cq_count; i++) { |
| 956 | if (server->cqs[i] == cq) return; |
| 957 | } |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 958 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 959 | grpc_cq_mark_server_cq(cq); |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 960 | |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 961 | if (is_non_listening) { |
| 962 | grpc_cq_mark_non_listening_server_cq(cq); |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 963 | } |
Craig Tiller | 509b30e | 2016-05-21 12:32:39 -0700 | [diff] [blame] | 964 | |
| 965 | GRPC_CQ_INTERNAL_REF(cq, "server"); |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 966 | n = server->cq_count++; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 967 | server->cqs = gpr_realloc(server->cqs, |
| 968 | server->cq_count * sizeof(grpc_completion_queue *)); |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 969 | server->cqs[n] = cq; |
| 970 | } |
| 971 | |
Sree Kuchibhotla | 1f5e262 | 2016-04-21 12:28:09 -0700 | [diff] [blame] | 972 | void grpc_server_register_completion_queue(grpc_server *server, |
| 973 | grpc_completion_queue *cq, |
| 974 | void *reserved) { |
| 975 | GRPC_API_TRACE( |
| 976 | "grpc_server_register_completion_queue(server=%p, cq=%p, reserved=%p)", 3, |
| 977 | (server, cq, reserved)); |
| 978 | register_completion_queue(server, cq, false, reserved); |
| 979 | } |
| 980 | |
| 981 | void grpc_server_register_non_listening_completion_queue( |
| 982 | grpc_server *server, grpc_completion_queue *cq, void *reserved) { |
| 983 | GRPC_API_TRACE( |
| 984 | "grpc_server_register_non_listening_completion_queue(server=%p, cq=%p, " |
| 985 | "reserved=%p)", |
| 986 | 3, (server, cq, reserved)); |
| 987 | register_completion_queue(server, cq, true, reserved); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 988 | } |
| 989 | |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 990 | grpc_server *grpc_server_create(const grpc_channel_args *args, void *reserved) { |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 991 | GRPC_API_TRACE("grpc_server_create(%p, %p)", 2, (args, reserved)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 992 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 993 | grpc_server *server = gpr_malloc(sizeof(grpc_server)); |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 994 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 995 | GPR_ASSERT(grpc_is_initialized() && "call grpc_init()"); |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 996 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 997 | memset(server, 0, sizeof(grpc_server)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 998 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 999 | gpr_mu_init(&server->mu_global); |
| 1000 | gpr_mu_init(&server->mu_call); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1001 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1002 | /* decremented by grpc_server_destroy */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1003 | gpr_ref_init(&server->internal_refcount, 1); |
| 1004 | server->root_channel_data.next = server->root_channel_data.prev = |
| 1005 | &server->root_channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1006 | |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1007 | /* TODO(ctiller): expose a channel_arg for this */ |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1008 | server->max_requested_calls_per_cq = 32768; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1009 | server->channel_args = grpc_channel_args_copy(args); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1010 | |
| 1011 | return server; |
| 1012 | } |
| 1013 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1014 | static int streq(const char *a, const char *b) { |
| 1015 | if (a == NULL && b == NULL) return 1; |
| 1016 | if (a == NULL) return 0; |
| 1017 | if (b == NULL) return 0; |
| 1018 | return 0 == strcmp(a, b); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1019 | } |
| 1020 | |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 1021 | void *grpc_server_register_method( |
| 1022 | grpc_server *server, const char *method, const char *host, |
| 1023 | grpc_server_register_method_payload_handling payload_handling, |
| 1024 | uint32_t flags) { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1025 | registered_method *m; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 1026 | GRPC_API_TRACE( |
| 1027 | "grpc_server_register_method(server=%p, method=%s, host=%s, " |
| 1028 | "flags=0x%08x)", |
| 1029 | 4, (server, method, host, flags)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1030 | if (!method) { |
| 1031 | gpr_log(GPR_ERROR, |
| 1032 | "grpc_server_register_method method string cannot be NULL"); |
| 1033 | return NULL; |
| 1034 | } |
| 1035 | for (m = server->registered_methods; m; m = m->next) { |
| 1036 | if (streq(m->method, method) && streq(m->host, host)) { |
| 1037 | gpr_log(GPR_ERROR, "duplicate registration for %s@%s", method, |
| 1038 | host ? host : "*"); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1039 | return NULL; |
| 1040 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1041 | } |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 1042 | if ((flags & ~GRPC_INITIAL_METADATA_USED_MASK) != 0) { |
| 1043 | gpr_log(GPR_ERROR, "grpc_server_register_method invalid flags 0x%08x", |
| 1044 | flags); |
| 1045 | return NULL; |
| 1046 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1047 | m = gpr_malloc(sizeof(registered_method)); |
| 1048 | memset(m, 0, sizeof(*m)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1049 | m->method = gpr_strdup(method); |
| 1050 | m->host = gpr_strdup(host); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1051 | m->next = server->registered_methods; |
Craig Tiller | 5ada3d2 | 2016-04-04 08:30:59 -0700 | [diff] [blame] | 1052 | m->payload_handling = payload_handling; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 1053 | m->flags = flags; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1054 | server->registered_methods = m; |
| 1055 | return m; |
| 1056 | } |
| 1057 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1058 | void grpc_server_start(grpc_server *server) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1059 | listener *l; |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 1060 | size_t i; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1061 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 1062 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1063 | GRPC_API_TRACE("grpc_server_start(server=%p)", 1, (server)); |
| 1064 | |
Craig Tiller | 88ef00e | 2016-05-17 09:31:49 -0700 | [diff] [blame] | 1065 | server->started = true; |
Craig Tiller | 509b30e | 2016-05-21 12:32:39 -0700 | [diff] [blame] | 1066 | size_t pollset_count = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1067 | server->pollsets = gpr_malloc(sizeof(grpc_pollset *) * server->cq_count); |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1068 | server->request_freelist_per_cq = |
| 1069 | gpr_malloc(sizeof(*server->request_freelist_per_cq) * server->cq_count); |
| 1070 | server->requested_calls_per_cq = |
| 1071 | gpr_malloc(sizeof(*server->requested_calls_per_cq) * server->cq_count); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1072 | for (i = 0; i < server->cq_count; i++) { |
Craig Tiller | 509b30e | 2016-05-21 12:32:39 -0700 | [diff] [blame] | 1073 | if (!grpc_cq_is_non_listening_server_cq(server->cqs[i])) { |
| 1074 | server->pollsets[pollset_count++] = grpc_cq_pollset(server->cqs[i]); |
| 1075 | } |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1076 | server->request_freelist_per_cq[i] = |
| 1077 | gpr_stack_lockfree_create((size_t)server->max_requested_calls_per_cq); |
| 1078 | for (int j = 0; j < server->max_requested_calls_per_cq; j++) { |
| 1079 | gpr_stack_lockfree_push(server->request_freelist_per_cq[i], j); |
| 1080 | } |
| 1081 | server->requested_calls_per_cq[i] = |
| 1082 | gpr_malloc((size_t)server->max_requested_calls_per_cq * |
| 1083 | sizeof(*server->requested_calls_per_cq[i])); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 1084 | } |
| 1085 | request_matcher_init(&server->unregistered_request_matcher, |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1086 | (size_t)server->max_requested_calls_per_cq, server); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 1087 | for (registered_method *rm = server->registered_methods; rm; rm = rm->next) { |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1088 | request_matcher_init(&rm->request_matcher, |
| 1089 | (size_t)server->max_requested_calls_per_cq, server); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1090 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1091 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1092 | for (l = server->listeners; l; l = l->next) { |
Craig Tiller | 509b30e | 2016-05-21 12:32:39 -0700 | [diff] [blame] | 1093 | l->start(&exec_ctx, server, l->arg, server->pollsets, pollset_count); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1094 | } |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1095 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1096 | grpc_exec_ctx_finish(&exec_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1097 | } |
| 1098 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1099 | void grpc_server_setup_transport(grpc_exec_ctx *exec_ctx, grpc_server *s, |
| 1100 | grpc_transport *transport, |
Craig Tiller | 418a821 | 2016-05-16 16:27:51 -0700 | [diff] [blame] | 1101 | grpc_pollset *accepting_pollset, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1102 | const grpc_channel_args *args) { |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1103 | size_t num_registered_methods; |
| 1104 | size_t alloc; |
| 1105 | registered_method *rm; |
| 1106 | channel_registered_method *crm; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1107 | grpc_channel *channel; |
| 1108 | channel_data *chand; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1109 | grpc_mdstr *host; |
| 1110 | grpc_mdstr *method; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 1111 | uint32_t hash; |
Craig Tiller | f96dfc3 | 2015-09-10 14:43:18 -0700 | [diff] [blame] | 1112 | size_t slots; |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 1113 | uint32_t probes; |
| 1114 | uint32_t max_probes = 0; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 1115 | grpc_transport_op op; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1116 | |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 1117 | channel = |
| 1118 | grpc_channel_create(exec_ctx, NULL, args, GRPC_SERVER_CHANNEL, transport); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1119 | chand = (channel_data *)grpc_channel_stack_element( |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 1120 | grpc_channel_get_channel_stack(channel), 0) |
| 1121 | ->channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1122 | chand->server = s; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1123 | server_ref(s); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1124 | chand->channel = channel; |
| 1125 | |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1126 | size_t cq_idx; |
| 1127 | grpc_completion_queue *accepting_cq = grpc_cq_from_pollset(accepting_pollset); |
| 1128 | for (cq_idx = 0; cq_idx < s->cq_count; cq_idx++) { |
| 1129 | if (s->cqs[cq_idx] == accepting_cq) break; |
| 1130 | } |
| 1131 | if (cq_idx == s->cq_count) { |
| 1132 | /* completion queue not found: pick a random one to publish new calls to */ |
| 1133 | cq_idx = (size_t)rand() % s->cq_count; |
| 1134 | } |
| 1135 | chand->cq_idx = cq_idx; |
| 1136 | |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1137 | num_registered_methods = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1138 | for (rm = s->registered_methods; rm; rm = rm->next) { |
| 1139 | num_registered_methods++; |
| 1140 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1141 | /* build a lookup table phrased in terms of mdstr's in this channels context |
| 1142 | to quickly find registered methods */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1143 | if (num_registered_methods > 0) { |
| 1144 | slots = 2 * num_registered_methods; |
| 1145 | alloc = sizeof(channel_registered_method) * slots; |
| 1146 | chand->registered_methods = gpr_malloc(alloc); |
| 1147 | memset(chand->registered_methods, 0, alloc); |
| 1148 | for (rm = s->registered_methods; rm; rm = rm->next) { |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 1149 | host = rm->host ? grpc_mdstr_from_string(rm->host) : NULL; |
| 1150 | method = grpc_mdstr_from_string(rm->method); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1151 | hash = GRPC_MDSTR_KV_HASH(host ? host->hash : 0, method->hash); |
| 1152 | for (probes = 0; chand->registered_methods[(hash + probes) % slots] |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 1153 | .server_registered_method != NULL; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1154 | probes++) |
| 1155 | ; |
| 1156 | if (probes > max_probes) max_probes = probes; |
| 1157 | crm = &chand->registered_methods[(hash + probes) % slots]; |
| 1158 | crm->server_registered_method = rm; |
Craig Tiller | b290686 | 2016-03-10 06:50:07 -0800 | [diff] [blame] | 1159 | crm->flags = rm->flags; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1160 | crm->host = host; |
| 1161 | crm->method = method; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1162 | } |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 1163 | GPR_ASSERT(slots <= UINT32_MAX); |
| 1164 | chand->registered_method_slots = (uint32_t)slots; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1165 | chand->registered_method_max_probes = max_probes; |
| 1166 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1167 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1168 | gpr_mu_lock(&s->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1169 | chand->next = &s->root_channel_data; |
| 1170 | chand->prev = chand->next->prev; |
| 1171 | chand->next->prev = chand->prev->next = chand; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1172 | gpr_mu_unlock(&s->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1173 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1174 | GRPC_CHANNEL_INTERNAL_REF(channel, "connectivity"); |
| 1175 | memset(&op, 0, sizeof(op)); |
Craig Tiller | d7f12e3 | 2016-03-03 10:08:31 -0800 | [diff] [blame] | 1176 | op.set_accept_stream = true; |
| 1177 | op.set_accept_stream_fn = accept_stream; |
Craig Tiller | 4b80410 | 2015-06-26 16:16:12 -0700 | [diff] [blame] | 1178 | op.set_accept_stream_user_data = chand; |
| 1179 | op.on_connectivity_state_change = &chand->channel_connectivity_changed; |
| 1180 | op.connectivity_state = &chand->connectivity_state; |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1181 | if (gpr_atm_acq_load(&s->shutdown_flag) != 0) { |
| 1182 | op.disconnect_with_error = GRPC_ERROR_CREATE("Server shutdown"); |
| 1183 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1184 | grpc_transport_perform_op(exec_ctx, transport, &op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1185 | } |
| 1186 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1187 | void done_published_shutdown(grpc_exec_ctx *exec_ctx, void *done_arg, |
| 1188 | grpc_cq_completion *storage) { |
| 1189 | (void)done_arg; |
| 1190 | gpr_free(storage); |
murgatroid99 | 00a3dab | 2015-08-19 11:15:38 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1193 | static void listener_destroy_done(grpc_exec_ctx *exec_ctx, void *s, |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 1194 | grpc_error *error) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1195 | grpc_server *server = s; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1196 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1197 | server->listeners_destroyed++; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1198 | maybe_finish_shutdown(exec_ctx, server); |
| 1199 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1200 | } |
| 1201 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1202 | void grpc_server_shutdown_and_notify(grpc_server *server, |
| 1203 | grpc_completion_queue *cq, void *tag) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1204 | listener *l; |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 1205 | shutdown_tag *sdt; |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 1206 | channel_broadcaster broadcaster; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1207 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1208 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1209 | GRPC_API_TRACE("grpc_server_shutdown_and_notify(server=%p, cq=%p, tag=%p)", 3, |
| 1210 | (server, cq, tag)); |
| 1211 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1212 | /* lock, and gather up some stuff to do */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1213 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame] | 1214 | grpc_cq_begin_op(cq, tag); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1215 | if (server->shutdown_published) { |
Craig Tiller | f51457b | 2016-05-03 17:06:32 -0700 | [diff] [blame] | 1216 | grpc_cq_end_op(&exec_ctx, cq, tag, GRPC_ERROR_NONE, done_published_shutdown, |
| 1217 | NULL, gpr_malloc(sizeof(grpc_cq_completion))); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1218 | gpr_mu_unlock(&server->mu_global); |
| 1219 | goto done; |
| 1220 | } |
| 1221 | server->shutdown_tags = |
| 1222 | gpr_realloc(server->shutdown_tags, |
| 1223 | sizeof(shutdown_tag) * (server->num_shutdown_tags + 1)); |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 1224 | sdt = &server->shutdown_tags[server->num_shutdown_tags++]; |
| 1225 | sdt->tag = tag; |
| 1226 | sdt->cq = cq; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1227 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
| 1228 | gpr_mu_unlock(&server->mu_global); |
| 1229 | goto done; |
| 1230 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1231 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1232 | server->last_shutdown_message_time = gpr_now(GPR_CLOCK_REALTIME); |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 1233 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1234 | channel_broadcaster_init(server, &broadcaster); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1235 | |
Craig Tiller | fc193e1 | 2015-09-24 15:29:03 -0700 | [diff] [blame] | 1236 | gpr_atm_rel_store(&server->shutdown_flag, 1); |
| 1237 | |
Craig Tiller | bd21757 | 2015-02-11 18:10:56 -0800 | [diff] [blame] | 1238 | /* collect all unregistered then registered calls */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1239 | gpr_mu_lock(&server->mu_call); |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 1240 | kill_pending_work_locked(&exec_ctx, server, |
| 1241 | GRPC_ERROR_CREATE("Server Shutdown")); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1242 | gpr_mu_unlock(&server->mu_call); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1243 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1244 | maybe_finish_shutdown(&exec_ctx, server); |
| 1245 | gpr_mu_unlock(&server->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1246 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1247 | /* Shutdown listeners */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1248 | for (l = server->listeners; l; l = l->next) { |
| 1249 | grpc_closure_init(&l->destroy_done, listener_destroy_done, server); |
| 1250 | l->destroy(&exec_ctx, server, l->arg, &l->destroy_done); |
| 1251 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 1252 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1253 | channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 1, 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1254 | |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1255 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1256 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1257 | } |
| 1258 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1259 | void grpc_server_cancel_all_calls(grpc_server *server) { |
Craig Tiller | 092d8d1 | 2015-07-04 22:35:00 -0700 | [diff] [blame] | 1260 | channel_broadcaster broadcaster; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1261 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1262 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1263 | GRPC_API_TRACE("grpc_server_cancel_all_calls(server=%p)", 1, (server)); |
| 1264 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1265 | gpr_mu_lock(&server->mu_global); |
| 1266 | channel_broadcaster_init(server, &broadcaster); |
| 1267 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1268 | |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 1269 | channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 0, |
| 1270 | GRPC_ERROR_CREATE("Cancelling all calls")); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1271 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1272 | } |
| 1273 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1274 | void grpc_server_destroy(grpc_server *server) { |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1275 | listener *l; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1276 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | 872af02 | 2015-04-24 15:57:52 -0700 | [diff] [blame] | 1277 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1278 | GRPC_API_TRACE("grpc_server_destroy(server=%p)", 1, (server)); |
| 1279 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1280 | gpr_mu_lock(&server->mu_global); |
| 1281 | GPR_ASSERT(gpr_atm_acq_load(&server->shutdown_flag) || !server->listeners); |
| 1282 | GPR_ASSERT(server->listeners_destroyed == num_listeners(server)); |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1283 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1284 | while (server->listeners) { |
| 1285 | l = server->listeners; |
| 1286 | server->listeners = l->next; |
| 1287 | gpr_free(l); |
| 1288 | } |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1289 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1290 | gpr_mu_unlock(&server->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1291 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1292 | server_unref(&exec_ctx, server); |
| 1293 | grpc_exec_ctx_finish(&exec_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1294 | } |
| 1295 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1296 | void grpc_server_add_listener( |
| 1297 | grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1298 | void (*start)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1299 | grpc_pollset **pollsets, size_t pollset_count), |
| 1300 | void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1301 | grpc_closure *on_done)) { |
| 1302 | listener *l = gpr_malloc(sizeof(listener)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1303 | l->arg = arg; |
| 1304 | l->start = start; |
| 1305 | l->destroy = destroy; |
| 1306 | l->next = server->listeners; |
| 1307 | server->listeners = l; |
| 1308 | } |
| 1309 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1310 | static grpc_call_error queue_call_request(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1311 | grpc_server *server, size_t cq_idx, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1312 | requested_call *rc) { |
Yang Gao | eb8e7cd | 2015-02-11 11:43:40 -0800 | [diff] [blame] | 1313 | call_data *calld = NULL; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1314 | request_matcher *rm = NULL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1315 | int request_id; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1316 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 1317 | fail_call(exec_ctx, server, cq_idx, rc, |
| 1318 | GRPC_ERROR_CREATE("Server Shutdown")); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1319 | return GRPC_CALL_OK; |
| 1320 | } |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1321 | request_id = gpr_stack_lockfree_pop(server->request_freelist_per_cq[cq_idx]); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1322 | if (request_id == -1) { |
| 1323 | /* out of request ids: just fail this one */ |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 1324 | fail_call(exec_ctx, server, cq_idx, rc, |
Craig Tiller | bdfa39c | 2016-07-12 16:08:13 -0700 | [diff] [blame] | 1325 | grpc_error_set_int(GRPC_ERROR_CREATE("Out of request ids"), |
| 1326 | GRPC_ERROR_INT_LIMIT, |
| 1327 | server->max_requested_calls_per_cq)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1328 | return GRPC_CALL_OK; |
| 1329 | } |
| 1330 | switch (rc->type) { |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1331 | case BATCH_CALL: |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1332 | rm = &server->unregistered_request_matcher; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1333 | break; |
| 1334 | case REGISTERED_CALL: |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1335 | rm = &rc->data.registered.registered_method->request_matcher; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1336 | break; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1337 | } |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1338 | server->requested_calls_per_cq[cq_idx][request_id] = *rc; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1339 | gpr_free(rc); |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 1340 | if (gpr_stack_lockfree_push(rm->requests_per_cq[cq_idx], request_id)) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1341 | /* this was the first queued request: we need to lock and start |
| 1342 | matching calls */ |
| 1343 | gpr_mu_lock(&server->mu_call); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1344 | while ((calld = rm->pending_head) != NULL) { |
Craig Tiller | db7c356 | 2016-05-19 11:02:52 -0700 | [diff] [blame] | 1345 | request_id = gpr_stack_lockfree_pop(rm->requests_per_cq[cq_idx]); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1346 | if (request_id == -1) break; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1347 | rm->pending_head = calld->pending_next; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1348 | gpr_mu_unlock(&server->mu_call); |
| 1349 | gpr_mu_lock(&calld->mu_state); |
| 1350 | if (calld->state == ZOMBIED) { |
| 1351 | gpr_mu_unlock(&calld->mu_state); |
| 1352 | grpc_closure_init( |
| 1353 | &calld->kill_zombie_closure, kill_zombie, |
| 1354 | grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0)); |
Craig Tiller | 332f1b3 | 2016-05-24 13:21:21 -0700 | [diff] [blame] | 1355 | grpc_exec_ctx_sched(exec_ctx, &calld->kill_zombie_closure, |
| 1356 | GRPC_ERROR_NONE, NULL); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1357 | } else { |
| 1358 | GPR_ASSERT(calld->state == PENDING); |
| 1359 | calld->state = ACTIVATED; |
| 1360 | gpr_mu_unlock(&calld->mu_state); |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1361 | publish_call(exec_ctx, server, calld, cq_idx, |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1362 | &server->requested_calls_per_cq[cq_idx][request_id]); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1363 | } |
| 1364 | gpr_mu_lock(&server->mu_call); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 1365 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1366 | gpr_mu_unlock(&server->mu_call); |
| 1367 | } |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1368 | return GRPC_CALL_OK; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 1369 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1370 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1371 | grpc_call_error grpc_server_request_call( |
| 1372 | grpc_server *server, grpc_call **call, grpc_call_details *details, |
| 1373 | grpc_metadata_array *initial_metadata, |
| 1374 | grpc_completion_queue *cq_bound_to_call, |
| 1375 | grpc_completion_queue *cq_for_notification, void *tag) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1376 | grpc_call_error error; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1377 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1378 | requested_call *rc = gpr_malloc(sizeof(*rc)); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1379 | GRPC_API_TRACE( |
| 1380 | "grpc_server_request_call(" |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 1381 | "server=%p, call=%p, details=%p, initial_metadata=%p, " |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1382 | "cq_bound_to_call=%p, cq_for_notification=%p, tag=%p)", |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1383 | 7, (server, call, details, initial_metadata, cq_bound_to_call, |
| 1384 | cq_for_notification, tag)); |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1385 | size_t cq_idx; |
| 1386 | for (cq_idx = 0; cq_idx < server->cq_count; cq_idx++) { |
| 1387 | if (server->cqs[cq_idx] == cq_for_notification) { |
| 1388 | break; |
| 1389 | } |
| 1390 | } |
| 1391 | if (cq_idx == server->cq_count) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1392 | gpr_free(rc); |
| 1393 | error = GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE; |
| 1394 | goto done; |
| 1395 | } |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame] | 1396 | grpc_cq_begin_op(cq_for_notification, tag); |
Craig Tiller | 9928d39 | 2015-08-18 09:40:24 -0700 | [diff] [blame] | 1397 | details->reserved = NULL; |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1398 | rc->cq_idx = cq_idx; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1399 | rc->type = BATCH_CALL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1400 | rc->server = server; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1401 | rc->tag = tag; |
| 1402 | rc->cq_bound_to_call = cq_bound_to_call; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1403 | rc->call = call; |
| 1404 | rc->data.batch.details = details; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1405 | rc->initial_metadata = initial_metadata; |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1406 | error = queue_call_request(&exec_ctx, server, cq_idx, rc); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1407 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1408 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1409 | return error; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1410 | } |
| 1411 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1412 | grpc_call_error grpc_server_request_registered_call( |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1413 | grpc_server *server, void *rmp, grpc_call **call, gpr_timespec *deadline, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1414 | grpc_metadata_array *initial_metadata, grpc_byte_buffer **optional_payload, |
| 1415 | grpc_completion_queue *cq_bound_to_call, |
| 1416 | grpc_completion_queue *cq_for_notification, void *tag) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1417 | grpc_call_error error; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1418 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1419 | requested_call *rc = gpr_malloc(sizeof(*rc)); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1420 | registered_method *rm = rmp; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1421 | GRPC_API_TRACE( |
| 1422 | "grpc_server_request_registered_call(" |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 1423 | "server=%p, rmp=%p, call=%p, deadline=%p, initial_metadata=%p, " |
| 1424 | "optional_payload=%p, cq_bound_to_call=%p, cq_for_notification=%p, " |
| 1425 | "tag=%p)", |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1426 | 9, (server, rmp, call, deadline, initial_metadata, optional_payload, |
| 1427 | cq_bound_to_call, cq_for_notification, tag)); |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1428 | |
| 1429 | size_t cq_idx; |
| 1430 | for (cq_idx = 0; cq_idx < server->cq_count; cq_idx++) { |
| 1431 | if (server->cqs[cq_idx] == cq_for_notification) { |
| 1432 | break; |
| 1433 | } |
| 1434 | } |
| 1435 | if (cq_idx == server->cq_count) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1436 | gpr_free(rc); |
| 1437 | error = GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE; |
| 1438 | goto done; |
| 1439 | } |
Craig Tiller | 06cb1a9 | 2016-04-04 08:10:47 -0700 | [diff] [blame] | 1440 | if ((optional_payload == NULL) != |
| 1441 | (rm->payload_handling == GRPC_SRM_PAYLOAD_NONE)) { |
| 1442 | gpr_free(rc); |
| 1443 | error = GRPC_CALL_ERROR_PAYLOAD_TYPE_MISMATCH; |
| 1444 | goto done; |
| 1445 | } |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame] | 1446 | grpc_cq_begin_op(cq_for_notification, tag); |
Craig Tiller | b19dbea | 2016-07-12 15:33:11 -0700 | [diff] [blame] | 1447 | rc->cq_idx = cq_idx; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1448 | rc->type = REGISTERED_CALL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1449 | rc->server = server; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1450 | rc->tag = tag; |
| 1451 | rc->cq_bound_to_call = cq_bound_to_call; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1452 | rc->call = call; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1453 | rc->data.registered.registered_method = rm; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1454 | rc->data.registered.deadline = deadline; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1455 | rc->initial_metadata = initial_metadata; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1456 | rc->data.registered.optional_payload = optional_payload; |
Craig Tiller | 9f9d422 | 2016-05-16 17:02:14 -0700 | [diff] [blame] | 1457 | error = queue_call_request(&exec_ctx, server, cq_idx, rc); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1458 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1459 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1460 | return error; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1461 | } |
| 1462 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1463 | static void fail_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 1464 | size_t cq_idx, requested_call *rc, grpc_error *error) { |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 1465 | *rc->call = NULL; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1466 | rc->initial_metadata->count = 0; |
Craig Tiller | cae4b1b | 2016-05-10 09:11:09 -0700 | [diff] [blame] | 1467 | GPR_ASSERT(error != GRPC_ERROR_NONE); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1468 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1469 | server_ref(server); |
Craig Tiller | 48abdde | 2016-05-24 06:55:28 -0700 | [diff] [blame] | 1470 | grpc_cq_end_op(exec_ctx, server->cqs[cq_idx], rc->tag, error, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1471 | done_request_event, rc, &rc->completion); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1472 | } |
| 1473 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1474 | const grpc_channel_args *grpc_server_get_channel_args(grpc_server *server) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1475 | return server->channel_args; |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 1476 | } |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1477 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1478 | int grpc_server_has_open_connections(grpc_server *server) { |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1479 | int r; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1480 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1481 | r = server->root_channel_data.next != &server->root_channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1482 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1483 | return r; |
| 1484 | } |