Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3 | * Copyright 2015, 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 | |
| 34 | #include "src/core/surface/server.h" |
| 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 | |
Hongyu Chen | e09dc78 | 2015-08-21 11:28:33 -0700 | [diff] [blame] | 45 | #include "src/core/census/grpc_filter.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 46 | #include "src/core/channel/channel_args.h" |
| 47 | #include "src/core/channel/connected_channel.h" |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 48 | #include "src/core/iomgr/iomgr.h" |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 49 | #include "src/core/support/stack_lockfree.h" |
Craig Tiller | 485d776 | 2015-01-23 12:54:05 -0800 | [diff] [blame] | 50 | #include "src/core/support/string.h" |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 51 | #include "src/core/surface/api_trace.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 52 | #include "src/core/surface/call.h" |
| 53 | #include "src/core/surface/channel.h" |
| 54 | #include "src/core/surface/completion_queue.h" |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 55 | #include "src/core/surface/init.h" |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 56 | #include "src/core/transport/metadata.h" |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 57 | #include "src/core/transport/static_metadata.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 58 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 59 | typedef struct listener { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 60 | void *arg; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 61 | void (*start)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 62 | grpc_pollset **pollsets, size_t pollset_count); |
| 63 | void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 64 | grpc_closure *closure); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 65 | struct listener *next; |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 66 | grpc_closure destroy_done; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 67 | } listener; |
| 68 | |
| 69 | typedef struct call_data call_data; |
| 70 | typedef struct channel_data channel_data; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 71 | typedef struct registered_method registered_method; |
| 72 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 73 | typedef struct { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 74 | call_data *next; |
| 75 | call_data *prev; |
| 76 | } call_link; |
| 77 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 78 | typedef enum { BATCH_CALL, REGISTERED_CALL } requested_call_type; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 79 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 80 | typedef struct requested_call { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 81 | requested_call_type type; |
| 82 | void *tag; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 83 | grpc_server *server; |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 84 | grpc_completion_queue *cq_bound_to_call; |
| 85 | grpc_completion_queue *cq_for_notification; |
| 86 | grpc_call **call; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 87 | grpc_cq_completion completion; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 88 | grpc_metadata_array *initial_metadata; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 89 | union { |
| 90 | struct { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 91 | grpc_call_details *details; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 92 | } batch; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 93 | struct { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 94 | registered_method *registered_method; |
| 95 | gpr_timespec *deadline; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 96 | grpc_byte_buffer **optional_payload; |
| 97 | } registered; |
| 98 | } data; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 99 | grpc_closure publish; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 100 | } requested_call; |
| 101 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 102 | typedef struct channel_registered_method { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 103 | registered_method *server_registered_method; |
| 104 | grpc_mdstr *method; |
| 105 | grpc_mdstr *host; |
| 106 | } channel_registered_method; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 107 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 108 | struct channel_data { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 109 | grpc_server *server; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 110 | grpc_connectivity_state connectivity_state; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 111 | grpc_channel *channel; |
| 112 | /* linked list of all channels on a server */ |
| 113 | channel_data *next; |
| 114 | channel_data *prev; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 115 | channel_registered_method *registered_methods; |
| 116 | gpr_uint32 registered_method_slots; |
| 117 | gpr_uint32 registered_method_max_probes; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 118 | grpc_closure finish_destroy_channel_closure; |
| 119 | grpc_closure channel_connectivity_changed; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 120 | }; |
| 121 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 122 | typedef struct shutdown_tag { |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 123 | void *tag; |
| 124 | grpc_completion_queue *cq; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 125 | grpc_cq_completion completion; |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 126 | } shutdown_tag; |
| 127 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 128 | typedef enum { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 129 | /* waiting for metadata */ |
| 130 | NOT_STARTED, |
| 131 | /* inital metadata read, not flow controlled in yet */ |
| 132 | PENDING, |
| 133 | /* flow controlled in, on completion queue */ |
| 134 | ACTIVATED, |
| 135 | /* cancelled before being queued */ |
| 136 | ZOMBIED |
| 137 | } call_state; |
| 138 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 139 | typedef struct request_matcher request_matcher; |
| 140 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 141 | struct call_data { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 142 | grpc_call *call; |
| 143 | |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 144 | /** protects state */ |
| 145 | gpr_mu mu_state; |
| 146 | /** the current state of a call - see call_state */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 147 | call_state state; |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 148 | |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 149 | grpc_mdstr *path; |
| 150 | grpc_mdstr *host; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 151 | gpr_timespec deadline; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 152 | |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 153 | grpc_completion_queue *cq_new; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 154 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 155 | grpc_metadata_batch *recv_initial_metadata; |
| 156 | grpc_metadata_array initial_metadata; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 157 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 158 | grpc_closure got_initial_metadata; |
| 159 | grpc_closure server_on_recv_initial_metadata; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 160 | grpc_closure kill_zombie_closure; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 161 | grpc_closure *on_done_recv_initial_metadata; |
David Garcia Quintas | 284488b | 2015-05-28 16:27:39 -0700 | [diff] [blame] | 162 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 163 | call_data *pending_next; |
| 164 | }; |
| 165 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 166 | struct request_matcher { |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 167 | call_data *pending_head; |
| 168 | call_data *pending_tail; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 169 | gpr_stack_lockfree *requests; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 170 | }; |
| 171 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 172 | struct registered_method { |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 173 | char *method; |
| 174 | char *host; |
| 175 | request_matcher request_matcher; |
| 176 | registered_method *next; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 177 | }; |
| 178 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 179 | typedef struct { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 180 | grpc_channel **channels; |
| 181 | size_t num_channels; |
| 182 | } channel_broadcaster; |
| 183 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 184 | struct grpc_server { |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 185 | size_t channel_filter_count; |
Craig Tiller | 565b18b | 2015-09-23 10:09:42 -0700 | [diff] [blame] | 186 | grpc_channel_filter const **channel_filters; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 187 | grpc_channel_args *channel_args; |
| 188 | |
| 189 | grpc_completion_queue **cqs; |
| 190 | grpc_pollset **pollsets; |
| 191 | size_t cq_count; |
| 192 | |
| 193 | /* The two following mutexes control access to server-state |
| 194 | mu_global controls access to non-call-related state (e.g., channel state) |
| 195 | mu_call controls access to call-related state (e.g., the call lists) |
| 196 | |
| 197 | If they are ever required to be nested, you must lock mu_global |
| 198 | before mu_call. This is currently used in shutdown processing |
| 199 | (grpc_server_shutdown_and_notify and maybe_finish_shutdown) */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 200 | gpr_mu mu_global; /* mutex for server and channel state */ |
| 201 | gpr_mu mu_call; /* mutex for call-specific state */ |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 202 | |
| 203 | registered_method *registered_methods; |
| 204 | request_matcher unregistered_request_matcher; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 205 | /** free list of available requested_calls indices */ |
| 206 | gpr_stack_lockfree *request_freelist; |
| 207 | /** requested call backing data */ |
| 208 | requested_call *requested_calls; |
Craig Tiller | 32ca48c | 2015-09-10 11:47:15 -0700 | [diff] [blame] | 209 | size_t max_requested_calls; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 210 | |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 211 | gpr_atm shutdown_flag; |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 212 | gpr_uint8 shutdown_published; |
| 213 | size_t num_shutdown_tags; |
| 214 | shutdown_tag *shutdown_tags; |
| 215 | |
| 216 | channel_data root_channel_data; |
| 217 | |
| 218 | listener *listeners; |
| 219 | int listeners_destroyed; |
| 220 | gpr_refcount internal_refcount; |
| 221 | |
| 222 | /** when did we print the last shutdown progress message */ |
| 223 | gpr_timespec last_shutdown_message_time; |
| 224 | }; |
| 225 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 226 | #define SERVER_FROM_CALL_ELEM(elem) \ |
| 227 | (((channel_data *)(elem)->channel_data)->server) |
| 228 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 229 | static void begin_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
| 230 | call_data *calld, requested_call *rc); |
| 231 | static void fail_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
| 232 | requested_call *rc); |
Vijay Pai | 8931cdd | 2015-06-17 12:42:17 -0700 | [diff] [blame] | 233 | /* Before calling maybe_finish_shutdown, we must hold mu_global and not |
| 234 | hold mu_call */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 235 | 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] | 236 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 237 | /* |
| 238 | * channel broadcaster |
| 239 | */ |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 240 | |
| 241 | /* assumes server locked */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 242 | static void channel_broadcaster_init(grpc_server *s, channel_broadcaster *cb) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 243 | channel_data *c; |
| 244 | size_t count = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 245 | for (c = s->root_channel_data.next; c != &s->root_channel_data; c = c->next) { |
| 246 | count++; |
| 247 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 248 | cb->num_channels = count; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 249 | cb->channels = gpr_malloc(sizeof(*cb->channels) * cb->num_channels); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 250 | count = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 251 | for (c = s->root_channel_data.next; c != &s->root_channel_data; c = c->next) { |
| 252 | cb->channels[count++] = c->channel; |
| 253 | GRPC_CHANNEL_INTERNAL_REF(c->channel, "broadcast"); |
| 254 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 255 | } |
| 256 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 257 | struct shutdown_cleanup_args { |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 258 | grpc_closure closure; |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 259 | gpr_slice slice; |
| 260 | }; |
| 261 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 262 | static void shutdown_cleanup(grpc_exec_ctx *exec_ctx, void *arg, |
| 263 | int iomgr_status_ignored) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 264 | struct shutdown_cleanup_args *a = arg; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 265 | gpr_slice_unref(a->slice); |
| 266 | gpr_free(a); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 267 | } |
| 268 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 269 | static void send_shutdown(grpc_exec_ctx *exec_ctx, grpc_channel *channel, |
| 270 | int send_goaway, int send_disconnect) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 271 | grpc_transport_op op; |
| 272 | struct shutdown_cleanup_args *sc; |
| 273 | grpc_channel_element *elem; |
| 274 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 275 | memset(&op, 0, sizeof(op)); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 276 | op.send_goaway = send_goaway; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 277 | sc = gpr_malloc(sizeof(*sc)); |
| 278 | sc->slice = gpr_slice_from_copied_string("Server shutdown"); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 279 | op.goaway_message = &sc->slice; |
| 280 | op.goaway_status = GRPC_STATUS_OK; |
| 281 | op.disconnect = send_disconnect; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 282 | grpc_closure_init(&sc->closure, shutdown_cleanup, sc); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 283 | op.on_consumed = &sc->closure; |
| 284 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 285 | elem = grpc_channel_stack_element(grpc_channel_get_channel_stack(channel), 0); |
| 286 | elem->filter->start_transport_op(exec_ctx, elem, &op); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 287 | } |
| 288 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 289 | static void channel_broadcaster_shutdown(grpc_exec_ctx *exec_ctx, |
| 290 | channel_broadcaster *cb, |
| 291 | int send_goaway, |
| 292 | int force_disconnect) { |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 293 | size_t i; |
| 294 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 295 | for (i = 0; i < cb->num_channels; i++) { |
| 296 | send_shutdown(exec_ctx, cb->channels[i], send_goaway, force_disconnect); |
| 297 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, cb->channels[i], "broadcast"); |
| 298 | } |
| 299 | gpr_free(cb->channels); |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 300 | } |
| 301 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 302 | /* |
| 303 | * request_matcher |
| 304 | */ |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 305 | |
Craig Tiller | 8dc0971 | 2015-09-24 13:58:16 -0700 | [diff] [blame] | 306 | static void request_matcher_init(request_matcher *rm, size_t entries) { |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 307 | memset(rm, 0, sizeof(*rm)); |
| 308 | rm->requests = gpr_stack_lockfree_create(entries); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 309 | } |
| 310 | |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 311 | static void request_matcher_destroy(request_matcher *rm) { |
| 312 | GPR_ASSERT(gpr_stack_lockfree_pop(rm->requests) == -1); |
| 313 | gpr_stack_lockfree_destroy(rm->requests); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 314 | } |
| 315 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 316 | static void kill_zombie(grpc_exec_ctx *exec_ctx, void *elem, int success) { |
| 317 | grpc_call_destroy(grpc_call_from_top_element(elem)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 318 | } |
| 319 | |
Craig Tiller | 8dc0971 | 2015-09-24 13:58:16 -0700 | [diff] [blame] | 320 | static void request_matcher_zombify_all_pending_calls(grpc_exec_ctx *exec_ctx, |
| 321 | request_matcher *rm) { |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 322 | while (rm->pending_head) { |
| 323 | call_data *calld = rm->pending_head; |
| 324 | rm->pending_head = calld->pending_next; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 325 | gpr_mu_lock(&calld->mu_state); |
| 326 | calld->state = ZOMBIED; |
| 327 | gpr_mu_unlock(&calld->mu_state); |
| 328 | grpc_closure_init( |
| 329 | &calld->kill_zombie_closure, kill_zombie, |
| 330 | grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0)); |
| 331 | grpc_exec_ctx_enqueue(exec_ctx, &calld->kill_zombie_closure, 1); |
| 332 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 333 | } |
| 334 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 335 | static void request_matcher_kill_requests(grpc_exec_ctx *exec_ctx, |
| 336 | grpc_server *server, |
| 337 | request_matcher *rm) { |
Craig Tiller | 1191e21 | 2015-07-30 14:49:02 -0700 | [diff] [blame] | 338 | int request_id; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 339 | while ((request_id = gpr_stack_lockfree_pop(rm->requests)) != -1) { |
| 340 | fail_call(exec_ctx, server, &server->requested_calls[request_id]); |
| 341 | } |
Craig Tiller | 1191e21 | 2015-07-30 14:49:02 -0700 | [diff] [blame] | 342 | } |
| 343 | |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 344 | /* |
| 345 | * server proper |
| 346 | */ |
| 347 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 348 | static void server_ref(grpc_server *server) { |
| 349 | gpr_ref(&server->internal_refcount); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 350 | } |
| 351 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 352 | static void server_delete(grpc_exec_ctx *exec_ctx, grpc_server *server) { |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 353 | registered_method *rm; |
Craig Tiller | 8950461 | 2015-04-27 11:48:46 -0700 | [diff] [blame] | 354 | size_t i; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 355 | grpc_channel_args_destroy(server->channel_args); |
| 356 | gpr_mu_destroy(&server->mu_global); |
| 357 | gpr_mu_destroy(&server->mu_call); |
Craig Tiller | 565b18b | 2015-09-23 10:09:42 -0700 | [diff] [blame] | 358 | gpr_free((void *)server->channel_filters); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 359 | while ((rm = server->registered_methods) != NULL) { |
| 360 | server->registered_methods = rm->next; |
| 361 | request_matcher_destroy(&rm->request_matcher); |
| 362 | gpr_free(rm->method); |
| 363 | gpr_free(rm->host); |
| 364 | gpr_free(rm); |
| 365 | } |
| 366 | for (i = 0; i < server->cq_count; i++) { |
| 367 | GRPC_CQ_INTERNAL_UNREF(server->cqs[i], "server"); |
| 368 | } |
| 369 | request_matcher_destroy(&server->unregistered_request_matcher); |
| 370 | gpr_stack_lockfree_destroy(server->request_freelist); |
| 371 | gpr_free(server->cqs); |
| 372 | gpr_free(server->pollsets); |
| 373 | gpr_free(server->shutdown_tags); |
| 374 | gpr_free(server->requested_calls); |
| 375 | gpr_free(server); |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 376 | } |
| 377 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 378 | static void server_unref(grpc_exec_ctx *exec_ctx, grpc_server *server) { |
| 379 | if (gpr_unref(&server->internal_refcount)) { |
| 380 | server_delete(exec_ctx, server); |
| 381 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 382 | } |
| 383 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 384 | static int is_channel_orphaned(channel_data *chand) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 385 | return chand->next == chand; |
| 386 | } |
| 387 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 388 | static void orphan_channel(channel_data *chand) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 389 | chand->next->prev = chand->prev; |
| 390 | chand->prev->next = chand->next; |
| 391 | chand->next = chand->prev = chand; |
| 392 | } |
| 393 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 394 | static void finish_destroy_channel(grpc_exec_ctx *exec_ctx, void *cd, |
| 395 | int success) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 396 | channel_data *chand = cd; |
| 397 | grpc_server *server = chand->server; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 398 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, chand->channel, "server"); |
| 399 | server_unref(exec_ctx, server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 400 | } |
| 401 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 402 | static void destroy_channel(grpc_exec_ctx *exec_ctx, channel_data *chand) { |
| 403 | if (is_channel_orphaned(chand)) return; |
| 404 | GPR_ASSERT(chand->server != NULL); |
| 405 | orphan_channel(chand); |
| 406 | server_ref(chand->server); |
| 407 | maybe_finish_shutdown(exec_ctx, chand->server); |
David Garcia Quintas | 284488b | 2015-05-28 16:27:39 -0700 | [diff] [blame] | 408 | chand->finish_destroy_channel_closure.cb = finish_destroy_channel; |
| 409 | chand->finish_destroy_channel_closure.cb_arg = chand; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 410 | grpc_exec_ctx_enqueue(exec_ctx, &chand->finish_destroy_channel_closure, 1); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 411 | } |
| 412 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 413 | static void finish_start_new_rpc(grpc_exec_ctx *exec_ctx, grpc_server *server, |
Craig Tiller | 8dc0971 | 2015-09-24 13:58:16 -0700 | [diff] [blame] | 414 | grpc_call_element *elem, request_matcher *rm) { |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 415 | call_data *calld = elem->call_data; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 416 | int request_id; |
| 417 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 418 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
| 419 | gpr_mu_lock(&calld->mu_state); |
| 420 | calld->state = ZOMBIED; |
| 421 | gpr_mu_unlock(&calld->mu_state); |
| 422 | grpc_closure_init(&calld->kill_zombie_closure, kill_zombie, elem); |
| 423 | grpc_exec_ctx_enqueue(exec_ctx, &calld->kill_zombie_closure, 1); |
| 424 | return; |
| 425 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 426 | |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 427 | request_id = gpr_stack_lockfree_pop(rm->requests); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 428 | if (request_id == -1) { |
| 429 | gpr_mu_lock(&server->mu_call); |
| 430 | gpr_mu_lock(&calld->mu_state); |
| 431 | calld->state = PENDING; |
| 432 | gpr_mu_unlock(&calld->mu_state); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 433 | if (rm->pending_head == NULL) { |
| 434 | rm->pending_tail = rm->pending_head = calld; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 435 | } else { |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 436 | rm->pending_tail->pending_next = calld; |
| 437 | rm->pending_tail = calld; |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 438 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 439 | calld->pending_next = NULL; |
| 440 | gpr_mu_unlock(&server->mu_call); |
| 441 | } else { |
| 442 | gpr_mu_lock(&calld->mu_state); |
| 443 | calld->state = ACTIVATED; |
| 444 | gpr_mu_unlock(&calld->mu_state); |
| 445 | begin_call(exec_ctx, server, calld, &server->requested_calls[request_id]); |
| 446 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 447 | } |
| 448 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 449 | 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] | 450 | channel_data *chand = elem->channel_data; |
| 451 | call_data *calld = elem->call_data; |
| 452 | grpc_server *server = chand->server; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 453 | gpr_uint32 i; |
| 454 | gpr_uint32 hash; |
| 455 | channel_registered_method *rm; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 456 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 457 | if (chand->registered_methods && calld->path && calld->host) { |
| 458 | /* TODO(ctiller): unify these two searches */ |
| 459 | /* check for an exact match with host */ |
| 460 | hash = GRPC_MDSTR_KV_HASH(calld->host->hash, calld->path->hash); |
| 461 | for (i = 0; i <= chand->registered_method_max_probes; i++) { |
| 462 | rm = &chand->registered_methods[(hash + i) % |
| 463 | chand->registered_method_slots]; |
| 464 | if (!rm) break; |
| 465 | if (rm->host != calld->host) continue; |
| 466 | if (rm->method != calld->path) continue; |
| 467 | finish_start_new_rpc(exec_ctx, server, elem, |
| 468 | &rm->server_registered_method->request_matcher); |
| 469 | return; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 470 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 471 | /* check for a wildcard method definition (no host set) */ |
| 472 | hash = GRPC_MDSTR_KV_HASH(0, calld->path->hash); |
| 473 | for (i = 0; i <= chand->registered_method_max_probes; i++) { |
| 474 | rm = &chand->registered_methods[(hash + i) % |
| 475 | chand->registered_method_slots]; |
| 476 | if (!rm) break; |
| 477 | if (rm->host != NULL) continue; |
| 478 | if (rm->method != calld->path) continue; |
| 479 | finish_start_new_rpc(exec_ctx, server, elem, |
| 480 | &rm->server_registered_method->request_matcher); |
| 481 | return; |
| 482 | } |
| 483 | } |
| 484 | finish_start_new_rpc(exec_ctx, server, elem, |
| 485 | &server->unregistered_request_matcher); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 486 | } |
| 487 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 488 | static int num_listeners(grpc_server *server) { |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 489 | listener *l; |
| 490 | int n = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 491 | for (l = server->listeners; l; l = l->next) { |
| 492 | n++; |
| 493 | } |
Craig Tiller | ee945e8 | 2015-05-26 16:15:34 -0700 | [diff] [blame] | 494 | return n; |
| 495 | } |
| 496 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 497 | static void done_shutdown_event(grpc_exec_ctx *exec_ctx, void *server, |
| 498 | grpc_cq_completion *completion) { |
| 499 | server_unref(exec_ctx, server); |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 500 | } |
| 501 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 502 | static int num_channels(grpc_server *server) { |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 503 | channel_data *chand; |
| 504 | int n = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 505 | for (chand = server->root_channel_data.next; |
| 506 | chand != &server->root_channel_data; chand = chand->next) { |
| 507 | n++; |
| 508 | } |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 509 | return n; |
| 510 | } |
| 511 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 512 | static void kill_pending_work_locked(grpc_exec_ctx *exec_ctx, |
| 513 | grpc_server *server) { |
Craig Tiller | 1191e21 | 2015-07-30 14:49:02 -0700 | [diff] [blame] | 514 | registered_method *rm; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 515 | request_matcher_kill_requests(exec_ctx, server, |
| 516 | &server->unregistered_request_matcher); |
| 517 | request_matcher_zombify_all_pending_calls( |
| 518 | exec_ctx, &server->unregistered_request_matcher); |
| 519 | for (rm = server->registered_methods; rm; rm = rm->next) { |
| 520 | request_matcher_kill_requests(exec_ctx, server, &rm->request_matcher); |
| 521 | request_matcher_zombify_all_pending_calls(exec_ctx, &rm->request_matcher); |
| 522 | } |
Craig Tiller | dc62772 | 2015-05-26 15:27:02 -0700 | [diff] [blame] | 523 | } |
| 524 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 525 | static void maybe_finish_shutdown(grpc_exec_ctx *exec_ctx, |
| 526 | grpc_server *server) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 527 | size_t i; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 528 | if (!gpr_atm_acq_load(&server->shutdown_flag) || server->shutdown_published) { |
| 529 | return; |
| 530 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 531 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 532 | kill_pending_work_locked(exec_ctx, server); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 533 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 534 | if (server->root_channel_data.next != &server->root_channel_data || |
| 535 | server->listeners_destroyed < num_listeners(server)) { |
| 536 | if (gpr_time_cmp(gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), |
| 537 | server->last_shutdown_message_time), |
| 538 | gpr_time_from_seconds(1, GPR_TIMESPAN)) >= 0) { |
| 539 | server->last_shutdown_message_time = gpr_now(GPR_CLOCK_REALTIME); |
| 540 | gpr_log(GPR_DEBUG, |
| 541 | "Waiting for %d channels and %d/%d listeners to be destroyed" |
| 542 | " before shutting down server", |
| 543 | num_channels(server), |
| 544 | num_listeners(server) - server->listeners_destroyed, |
| 545 | num_listeners(server)); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 546 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 547 | return; |
| 548 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 549 | server->shutdown_published = 1; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 550 | for (i = 0; i < server->num_shutdown_tags; i++) { |
| 551 | server_ref(server); |
| 552 | grpc_cq_end_op(exec_ctx, server->shutdown_tags[i].cq, |
| 553 | server->shutdown_tags[i].tag, 1, done_shutdown_event, server, |
| 554 | &server->shutdown_tags[i].completion); |
| 555 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 556 | } |
| 557 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 558 | static grpc_mdelem *server_filter(void *user_data, grpc_mdelem *md) { |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 559 | grpc_call_element *elem = user_data; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 560 | call_data *calld = elem->call_data; |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 561 | if (md->key == GRPC_MDSTR_PATH) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 562 | calld->path = GRPC_MDSTR_REF(md->value); |
| 563 | return NULL; |
Craig Tiller | ebdef9d | 2015-11-19 17:09:49 -0800 | [diff] [blame] | 564 | } else if (md->key == GRPC_MDSTR_AUTHORITY) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 565 | calld->host = GRPC_MDSTR_REF(md->value); |
| 566 | return NULL; |
| 567 | } |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 568 | return md; |
| 569 | } |
| 570 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 571 | static void server_on_recv_initial_metadata(grpc_exec_ctx *exec_ctx, void *ptr, |
| 572 | int success) { |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 573 | grpc_call_element *elem = ptr; |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 574 | call_data *calld = elem->call_data; |
Craig Tiller | 94329d0 | 2015-07-23 09:52:11 -0700 | [diff] [blame] | 575 | gpr_timespec op_deadline; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 576 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 577 | grpc_metadata_batch_filter(calld->recv_initial_metadata, server_filter, elem); |
| 578 | op_deadline = calld->recv_initial_metadata->deadline; |
| 579 | if (0 != gpr_time_cmp(op_deadline, gpr_inf_future(op_deadline.clock_type))) { |
| 580 | calld->deadline = op_deadline; |
| 581 | } |
| 582 | if (calld->host && calld->path) { |
| 583 | /* do nothing */ |
| 584 | } else { |
| 585 | success = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 586 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 587 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 588 | calld->on_done_recv_initial_metadata->cb( |
| 589 | exec_ctx, calld->on_done_recv_initial_metadata->cb_arg, success); |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 590 | } |
| 591 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 592 | static void server_mutate_op(grpc_call_element *elem, |
| 593 | grpc_transport_stream_op *op) { |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 594 | call_data *calld = elem->call_data; |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 595 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 596 | if (op->recv_initial_metadata != NULL) { |
| 597 | calld->recv_initial_metadata = op->recv_initial_metadata; |
| 598 | calld->on_done_recv_initial_metadata = op->on_complete; |
| 599 | op->on_complete = &calld->server_on_recv_initial_metadata; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 600 | } |
Craig Tiller | 50d9db5 | 2015-04-23 10:52:14 -0700 | [diff] [blame] | 601 | } |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 602 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 603 | static void server_start_transport_stream_op(grpc_exec_ctx *exec_ctx, |
| 604 | grpc_call_element *elem, |
| 605 | grpc_transport_stream_op *op) { |
| 606 | GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
| 607 | server_mutate_op(elem, op); |
| 608 | grpc_call_next_op(exec_ctx, elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 609 | } |
| 610 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 611 | static void got_initial_metadata(grpc_exec_ctx *exec_ctx, void *ptr, |
| 612 | int success) { |
| 613 | grpc_call_element *elem = ptr; |
| 614 | call_data *calld = elem->call_data; |
| 615 | if (success) { |
| 616 | start_new_rpc(exec_ctx, elem); |
| 617 | } else { |
| 618 | gpr_mu_lock(&calld->mu_state); |
| 619 | if (calld->state == NOT_STARTED) { |
| 620 | calld->state = ZOMBIED; |
| 621 | gpr_mu_unlock(&calld->mu_state); |
| 622 | grpc_closure_init(&calld->kill_zombie_closure, kill_zombie, elem); |
| 623 | grpc_exec_ctx_enqueue(exec_ctx, &calld->kill_zombie_closure, 1); |
| 624 | } else if (calld->state == PENDING) { |
| 625 | calld->state = ZOMBIED; |
| 626 | gpr_mu_unlock(&calld->mu_state); |
| 627 | /* zombied call will be destroyed when it's removed from the pending |
| 628 | queue... later */ |
| 629 | } else { |
| 630 | gpr_mu_unlock(&calld->mu_state); |
| 631 | } |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | static void accept_stream(grpc_exec_ctx *exec_ctx, void *cd, |
| 636 | grpc_transport *transport, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 637 | const void *transport_server_data) { |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 638 | channel_data *chand = cd; |
| 639 | /* create a call */ |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 640 | grpc_call *call = |
| 641 | grpc_call_create(chand->channel, NULL, 0, NULL, transport_server_data, |
| 642 | NULL, 0, gpr_inf_future(GPR_CLOCK_MONOTONIC)); |
| 643 | grpc_call_element *elem = |
| 644 | grpc_call_stack_element(grpc_call_get_call_stack(call), 0); |
| 645 | call_data *calld = elem->call_data; |
| 646 | grpc_op op; |
| 647 | memset(&op, 0, sizeof(op)); |
| 648 | op.op = GRPC_OP_RECV_INITIAL_METADATA; |
| 649 | op.data.recv_initial_metadata = &calld->initial_metadata; |
| 650 | grpc_closure_init(&calld->got_initial_metadata, got_initial_metadata, elem); |
| 651 | grpc_call_start_batch_and_execute(exec_ctx, call, &op, 1, |
| 652 | &calld->got_initial_metadata); |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 653 | } |
| 654 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 655 | static void channel_connectivity_changed(grpc_exec_ctx *exec_ctx, void *cd, |
| 656 | int iomgr_status_ignored) { |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 657 | channel_data *chand = cd; |
| 658 | grpc_server *server = chand->server; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 659 | if (chand->connectivity_state != GRPC_CHANNEL_FATAL_FAILURE) { |
| 660 | grpc_transport_op op; |
| 661 | memset(&op, 0, sizeof(op)); |
| 662 | op.on_connectivity_state_change = &chand->channel_connectivity_changed, |
| 663 | op.connectivity_state = &chand->connectivity_state; |
| 664 | grpc_channel_next_op(exec_ctx, |
| 665 | grpc_channel_stack_element( |
| 666 | grpc_channel_get_channel_stack(chand->channel), 0), |
| 667 | &op); |
| 668 | } else { |
| 669 | gpr_mu_lock(&server->mu_global); |
| 670 | destroy_channel(exec_ctx, chand); |
| 671 | gpr_mu_unlock(&server->mu_global); |
| 672 | GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, chand->channel, "connectivity"); |
| 673 | } |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 674 | } |
| 675 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 676 | 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] | 677 | grpc_call_element_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 678 | call_data *calld = elem->call_data; |
| 679 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 680 | memset(calld, 0, sizeof(call_data)); |
| 681 | calld->deadline = gpr_inf_future(GPR_CLOCK_REALTIME); |
| 682 | calld->call = grpc_call_from_top_element(elem); |
| 683 | gpr_mu_init(&calld->mu_state); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 684 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 685 | grpc_closure_init(&calld->server_on_recv_initial_metadata, |
| 686 | server_on_recv_initial_metadata, elem); |
Craig Tiller | 1e6facb | 2015-06-11 22:47:11 -0700 | [diff] [blame] | 687 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 688 | server_ref(chand->server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 689 | } |
| 690 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 691 | static void destroy_call_elem(grpc_exec_ctx *exec_ctx, |
| 692 | grpc_call_element *elem) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 693 | channel_data *chand = elem->channel_data; |
Craig Tiller | db7db99 | 2015-01-29 11:19:01 -0800 | [diff] [blame] | 694 | call_data *calld = elem->call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 695 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 696 | GPR_ASSERT(calld->state != PENDING); |
Craig Tiller | 092d8d1 | 2015-07-04 22:35:00 -0700 | [diff] [blame] | 697 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 698 | if (calld->host) { |
| 699 | GRPC_MDSTR_UNREF(calld->host); |
| 700 | } |
| 701 | if (calld->path) { |
| 702 | GRPC_MDSTR_UNREF(calld->path); |
| 703 | } |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 704 | grpc_metadata_array_destroy(&calld->initial_metadata); |
Craig Tiller | 4df31a6 | 2015-01-30 09:44:31 -0800 | [diff] [blame] | 705 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 706 | gpr_mu_destroy(&calld->mu_state); |
Craig Tiller | 76d2c3b | 2015-07-07 11:46:01 -0700 | [diff] [blame] | 707 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 708 | server_unref(exec_ctx, chand->server); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 709 | } |
| 710 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 711 | static void init_channel_elem(grpc_exec_ctx *exec_ctx, |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 712 | grpc_channel_element *elem, |
| 713 | grpc_channel_element_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 714 | channel_data *chand = elem->channel_data; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 715 | GPR_ASSERT(args->is_first); |
| 716 | GPR_ASSERT(!args->is_last); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 717 | chand->server = NULL; |
| 718 | chand->channel = NULL; |
| 719 | chand->next = chand->prev = chand; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 720 | chand->registered_methods = NULL; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 721 | chand->connectivity_state = GRPC_CHANNEL_IDLE; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 722 | grpc_closure_init(&chand->channel_connectivity_changed, |
| 723 | channel_connectivity_changed, chand); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 724 | } |
| 725 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 726 | static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
| 727 | grpc_channel_element *elem) { |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 728 | size_t i; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 729 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 730 | if (chand->registered_methods) { |
| 731 | for (i = 0; i < chand->registered_method_slots; i++) { |
| 732 | if (chand->registered_methods[i].method) { |
| 733 | GRPC_MDSTR_UNREF(chand->registered_methods[i].method); |
| 734 | } |
| 735 | if (chand->registered_methods[i].host) { |
| 736 | GRPC_MDSTR_UNREF(chand->registered_methods[i].host); |
| 737 | } |
Craig Tiller | ec3257c | 2015-02-12 15:59:43 -0800 | [diff] [blame] | 738 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 739 | gpr_free(chand->registered_methods); |
| 740 | } |
| 741 | if (chand->server) { |
| 742 | gpr_mu_lock(&chand->server->mu_global); |
| 743 | chand->next->prev = chand->prev; |
| 744 | chand->prev->next = chand->next; |
| 745 | chand->next = chand->prev = chand; |
| 746 | maybe_finish_shutdown(exec_ctx, chand->server); |
| 747 | gpr_mu_unlock(&chand->server->mu_global); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 748 | server_unref(exec_ctx, chand->server); |
| 749 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | static const grpc_channel_filter server_surface_filter = { |
Craig Tiller | 71a0f9d | 2015-09-28 17:22:01 -0700 | [diff] [blame] | 753 | server_start_transport_stream_op, grpc_channel_next_op, sizeof(call_data), |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 754 | init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem, |
| 755 | sizeof(channel_data), init_channel_elem, destroy_channel_elem, |
| 756 | grpc_call_next_get_peer, "server", |
Craig Tiller | 9f28ac2 | 2015-01-27 17:01:29 -0800 | [diff] [blame] | 757 | }; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 758 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 759 | void grpc_server_register_completion_queue(grpc_server *server, |
| 760 | grpc_completion_queue *cq, |
| 761 | void *reserved) { |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 762 | size_t i, n; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 763 | GRPC_API_TRACE( |
| 764 | "grpc_server_register_completion_queue(server=%p, cq=%p, reserved=%p)", 3, |
| 765 | (server, cq, reserved)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 766 | GPR_ASSERT(!reserved); |
| 767 | for (i = 0; i < server->cq_count; i++) { |
| 768 | if (server->cqs[i] == cq) return; |
| 769 | } |
| 770 | GRPC_CQ_INTERNAL_REF(cq, "server"); |
| 771 | grpc_cq_mark_server_cq(cq); |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 772 | n = server->cq_count++; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 773 | server->cqs = gpr_realloc(server->cqs, |
| 774 | server->cq_count * sizeof(grpc_completion_queue *)); |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 775 | server->cqs[n] = cq; |
| 776 | } |
| 777 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 778 | grpc_server *grpc_server_create_from_filters( |
| 779 | const grpc_channel_filter **filters, size_t filter_count, |
| 780 | const grpc_channel_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 781 | size_t i; |
Alistair Veitch | 9d48ebf | 2015-06-01 10:01:03 -0700 | [diff] [blame] | 782 | /* TODO(census): restore this once we finalize census filter etc. |
| 783 | int census_enabled = grpc_channel_args_is_census_enabled(args); */ |
| 784 | int census_enabled = 0; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 785 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 786 | grpc_server *server = gpr_malloc(sizeof(grpc_server)); |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 787 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 788 | GPR_ASSERT(grpc_is_initialized() && "call grpc_init()"); |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 789 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 790 | memset(server, 0, sizeof(grpc_server)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 791 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 792 | gpr_mu_init(&server->mu_global); |
| 793 | gpr_mu_init(&server->mu_call); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 794 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 795 | /* decremented by grpc_server_destroy */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 796 | gpr_ref_init(&server->internal_refcount, 1); |
| 797 | server->root_channel_data.next = server->root_channel_data.prev = |
| 798 | &server->root_channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 799 | |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 800 | /* TODO(ctiller): expose a channel_arg for this */ |
| 801 | server->max_requested_calls = 32768; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 802 | server->request_freelist = |
| 803 | gpr_stack_lockfree_create(server->max_requested_calls); |
| 804 | for (i = 0; i < (size_t)server->max_requested_calls; i++) { |
| 805 | gpr_stack_lockfree_push(server->request_freelist, (int)i); |
| 806 | } |
| 807 | request_matcher_init(&server->unregistered_request_matcher, |
| 808 | server->max_requested_calls); |
| 809 | server->requested_calls = gpr_malloc(server->max_requested_calls * |
| 810 | sizeof(*server->requested_calls)); |
Craig Tiller | 729b35a | 2015-07-13 12:36:47 -0700 | [diff] [blame] | 811 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 812 | /* Server filter stack is: |
| 813 | |
| 814 | server_surface_filter - for making surface API calls |
| 815 | grpc_server_census_filter (optional) - for stats collection and tracing |
| 816 | {passed in filter stack} |
| 817 | grpc_connected_channel_filter - for interfacing with transports */ |
Craig Tiller | 32ca48c | 2015-09-10 11:47:15 -0700 | [diff] [blame] | 818 | server->channel_filter_count = filter_count + 1u + (census_enabled ? 1u : 0u); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 819 | server->channel_filters = |
| 820 | gpr_malloc(server->channel_filter_count * sizeof(grpc_channel_filter *)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 821 | server->channel_filters[0] = &server_surface_filter; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 822 | if (census_enabled) { |
| 823 | server->channel_filters[1] = &grpc_server_census_filter; |
| 824 | } |
| 825 | for (i = 0; i < filter_count; i++) { |
| 826 | server->channel_filters[i + 1u + (census_enabled ? 1u : 0u)] = filters[i]; |
| 827 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 828 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 829 | server->channel_args = grpc_channel_args_copy(args); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 830 | |
| 831 | return server; |
| 832 | } |
| 833 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 834 | static int streq(const char *a, const char *b) { |
| 835 | if (a == NULL && b == NULL) return 1; |
| 836 | if (a == NULL) return 0; |
| 837 | if (b == NULL) return 0; |
| 838 | return 0 == strcmp(a, b); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 839 | } |
| 840 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 841 | void *grpc_server_register_method(grpc_server *server, const char *method, |
| 842 | const char *host) { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 843 | registered_method *m; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 844 | GRPC_API_TRACE("grpc_server_register_method(server=%p, method=%s, host=%s)", |
| 845 | 3, (server, method, host)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 846 | if (!method) { |
| 847 | gpr_log(GPR_ERROR, |
| 848 | "grpc_server_register_method method string cannot be NULL"); |
| 849 | return NULL; |
| 850 | } |
| 851 | for (m = server->registered_methods; m; m = m->next) { |
| 852 | if (streq(m->method, method) && streq(m->host, host)) { |
| 853 | gpr_log(GPR_ERROR, "duplicate registration for %s@%s", method, |
| 854 | host ? host : "*"); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 855 | return NULL; |
| 856 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 857 | } |
| 858 | m = gpr_malloc(sizeof(registered_method)); |
| 859 | memset(m, 0, sizeof(*m)); |
| 860 | request_matcher_init(&m->request_matcher, server->max_requested_calls); |
| 861 | m->method = gpr_strdup(method); |
| 862 | m->host = gpr_strdup(host); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 863 | m->next = server->registered_methods; |
| 864 | server->registered_methods = m; |
| 865 | return m; |
| 866 | } |
| 867 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 868 | void grpc_server_start(grpc_server *server) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 869 | listener *l; |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 870 | size_t i; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 871 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 872 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 873 | GRPC_API_TRACE("grpc_server_start(server=%p)", 1, (server)); |
| 874 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 875 | server->pollsets = gpr_malloc(sizeof(grpc_pollset *) * server->cq_count); |
| 876 | for (i = 0; i < server->cq_count; i++) { |
| 877 | server->pollsets[i] = grpc_cq_pollset(server->cqs[i]); |
| 878 | } |
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 | for (l = server->listeners; l; l = l->next) { |
| 881 | l->start(&exec_ctx, server, l->arg, server->pollsets, server->cq_count); |
| 882 | } |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 883 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 884 | grpc_exec_ctx_finish(&exec_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 885 | } |
| 886 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 887 | void grpc_server_setup_transport(grpc_exec_ctx *exec_ctx, grpc_server *s, |
| 888 | grpc_transport *transport, |
| 889 | grpc_channel_filter const **extra_filters, |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 890 | size_t num_extra_filters, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 891 | const grpc_channel_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 892 | size_t num_filters = s->channel_filter_count + num_extra_filters + 1; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 893 | grpc_channel_filter const **filters = |
| 894 | gpr_malloc(sizeof(grpc_channel_filter *) * num_filters); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 895 | size_t i; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 896 | size_t num_registered_methods; |
| 897 | size_t alloc; |
| 898 | registered_method *rm; |
| 899 | channel_registered_method *crm; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 900 | grpc_channel *channel; |
| 901 | channel_data *chand; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 902 | grpc_mdstr *host; |
| 903 | grpc_mdstr *method; |
| 904 | gpr_uint32 hash; |
Craig Tiller | f96dfc3 | 2015-09-10 14:43:18 -0700 | [diff] [blame] | 905 | size_t slots; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 906 | gpr_uint32 probes; |
| 907 | gpr_uint32 max_probes = 0; |
Craig Tiller | e039f03 | 2015-06-25 12:54:23 -0700 | [diff] [blame] | 908 | grpc_transport_op op; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 909 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 910 | for (i = 0; i < s->channel_filter_count; i++) { |
| 911 | filters[i] = s->channel_filters[i]; |
| 912 | } |
| 913 | for (; i < s->channel_filter_count + num_extra_filters; i++) { |
| 914 | filters[i] = extra_filters[i - s->channel_filter_count]; |
| 915 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 916 | filters[i] = &grpc_connected_channel_filter; |
| 917 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 918 | for (i = 0; i < s->cq_count; i++) { |
| 919 | memset(&op, 0, sizeof(op)); |
| 920 | op.bind_pollset = grpc_cq_pollset(s->cqs[i]); |
| 921 | grpc_transport_perform_op(exec_ctx, transport, &op); |
| 922 | } |
ctiller | d79b486 | 2014-12-17 16:36:59 -0800 | [diff] [blame] | 923 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 924 | channel = grpc_channel_create_from_filters(exec_ctx, NULL, filters, |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 925 | num_filters, args, 0); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 926 | chand = (channel_data *)grpc_channel_stack_element( |
Craig Tiller | 71a0f9d | 2015-09-28 17:22:01 -0700 | [diff] [blame] | 927 | grpc_channel_get_channel_stack(channel), 0)->channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 928 | chand->server = s; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 929 | server_ref(s); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 930 | chand->channel = channel; |
| 931 | |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 932 | num_registered_methods = 0; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 933 | for (rm = s->registered_methods; rm; rm = rm->next) { |
| 934 | num_registered_methods++; |
| 935 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 936 | /* build a lookup table phrased in terms of mdstr's in this channels context |
| 937 | to quickly find registered methods */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 938 | if (num_registered_methods > 0) { |
| 939 | slots = 2 * num_registered_methods; |
| 940 | alloc = sizeof(channel_registered_method) * slots; |
| 941 | chand->registered_methods = gpr_malloc(alloc); |
| 942 | memset(chand->registered_methods, 0, alloc); |
| 943 | for (rm = s->registered_methods; rm; rm = rm->next) { |
Craig Tiller | b2b4261 | 2015-11-20 12:02:17 -0800 | [diff] [blame] | 944 | host = rm->host ? grpc_mdstr_from_string(rm->host) : NULL; |
| 945 | method = grpc_mdstr_from_string(rm->method); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 946 | hash = GRPC_MDSTR_KV_HASH(host ? host->hash : 0, method->hash); |
| 947 | for (probes = 0; chand->registered_methods[(hash + probes) % slots] |
Craig Tiller | 71a0f9d | 2015-09-28 17:22:01 -0700 | [diff] [blame] | 948 | .server_registered_method != NULL; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 949 | probes++) |
| 950 | ; |
| 951 | if (probes > max_probes) max_probes = probes; |
| 952 | crm = &chand->registered_methods[(hash + probes) % slots]; |
| 953 | crm->server_registered_method = rm; |
| 954 | crm->host = host; |
| 955 | crm->method = method; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 956 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 957 | GPR_ASSERT(slots <= GPR_UINT32_MAX); |
| 958 | chand->registered_method_slots = (gpr_uint32)slots; |
| 959 | chand->registered_method_max_probes = max_probes; |
| 960 | } |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 961 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 962 | grpc_connected_channel_bind_transport(grpc_channel_get_channel_stack(channel), |
| 963 | transport); |
Craig Tiller | 7bd5ab1 | 2015-02-17 22:29:04 -0800 | [diff] [blame] | 964 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 965 | gpr_mu_lock(&s->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 966 | chand->next = &s->root_channel_data; |
| 967 | chand->prev = chand->next->prev; |
| 968 | chand->next->prev = chand->prev->next = chand; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 969 | gpr_mu_unlock(&s->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 970 | |
Craig Tiller | 565b18b | 2015-09-23 10:09:42 -0700 | [diff] [blame] | 971 | gpr_free((void *)filters); |
Craig Tiller | 4b80410 | 2015-06-26 16:16:12 -0700 | [diff] [blame] | 972 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 973 | GRPC_CHANNEL_INTERNAL_REF(channel, "connectivity"); |
| 974 | memset(&op, 0, sizeof(op)); |
Craig Tiller | 4b80410 | 2015-06-26 16:16:12 -0700 | [diff] [blame] | 975 | op.set_accept_stream = accept_stream; |
| 976 | op.set_accept_stream_user_data = chand; |
| 977 | op.on_connectivity_state_change = &chand->channel_connectivity_changed; |
| 978 | op.connectivity_state = &chand->connectivity_state; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 979 | op.disconnect = gpr_atm_acq_load(&s->shutdown_flag) != 0; |
| 980 | grpc_transport_perform_op(exec_ctx, transport, &op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 981 | } |
| 982 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 983 | void done_published_shutdown(grpc_exec_ctx *exec_ctx, void *done_arg, |
| 984 | grpc_cq_completion *storage) { |
| 985 | (void)done_arg; |
| 986 | gpr_free(storage); |
murgatroid99 | 00a3dab | 2015-08-19 11:15:38 -0700 | [diff] [blame] | 987 | } |
| 988 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 989 | static void listener_destroy_done(grpc_exec_ctx *exec_ctx, void *s, |
| 990 | int success) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 991 | grpc_server *server = s; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 992 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 993 | server->listeners_destroyed++; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 994 | maybe_finish_shutdown(exec_ctx, server); |
| 995 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 996 | } |
| 997 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 998 | void grpc_server_shutdown_and_notify(grpc_server *server, |
| 999 | grpc_completion_queue *cq, void *tag) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1000 | listener *l; |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 1001 | shutdown_tag *sdt; |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 1002 | channel_broadcaster broadcaster; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1003 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1004 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1005 | GRPC_API_TRACE("grpc_server_shutdown_and_notify(server=%p, cq=%p, tag=%p)", 3, |
| 1006 | (server, cq, tag)); |
| 1007 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1008 | /* lock, and gather up some stuff to do */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1009 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame^] | 1010 | grpc_cq_begin_op(cq, tag); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1011 | if (server->shutdown_published) { |
| 1012 | grpc_cq_end_op(&exec_ctx, cq, tag, 1, done_published_shutdown, NULL, |
| 1013 | gpr_malloc(sizeof(grpc_cq_completion))); |
| 1014 | gpr_mu_unlock(&server->mu_global); |
| 1015 | goto done; |
| 1016 | } |
| 1017 | server->shutdown_tags = |
| 1018 | gpr_realloc(server->shutdown_tags, |
| 1019 | sizeof(shutdown_tag) * (server->num_shutdown_tags + 1)); |
Craig Tiller | bce999f | 2015-05-27 09:55:51 -0700 | [diff] [blame] | 1020 | sdt = &server->shutdown_tags[server->num_shutdown_tags++]; |
| 1021 | sdt->tag = tag; |
| 1022 | sdt->cq = cq; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1023 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
| 1024 | gpr_mu_unlock(&server->mu_global); |
| 1025 | goto done; |
| 1026 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1027 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1028 | server->last_shutdown_message_time = gpr_now(GPR_CLOCK_REALTIME); |
Craig Tiller | ab54f79 | 2015-07-08 08:34:20 -0700 | [diff] [blame] | 1029 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1030 | channel_broadcaster_init(server, &broadcaster); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1031 | |
Craig Tiller | fc193e1 | 2015-09-24 15:29:03 -0700 | [diff] [blame] | 1032 | gpr_atm_rel_store(&server->shutdown_flag, 1); |
| 1033 | |
Craig Tiller | bd21757 | 2015-02-11 18:10:56 -0800 | [diff] [blame] | 1034 | /* collect all unregistered then registered calls */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1035 | gpr_mu_lock(&server->mu_call); |
| 1036 | kill_pending_work_locked(&exec_ctx, server); |
| 1037 | gpr_mu_unlock(&server->mu_call); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1038 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1039 | maybe_finish_shutdown(&exec_ctx, server); |
| 1040 | gpr_mu_unlock(&server->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1041 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1042 | /* Shutdown listeners */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1043 | for (l = server->listeners; l; l = l->next) { |
| 1044 | grpc_closure_init(&l->destroy_done, listener_destroy_done, server); |
| 1045 | l->destroy(&exec_ctx, server, l->arg, &l->destroy_done); |
| 1046 | } |
Craig Tiller | ff3ae68 | 2015-06-29 17:44:04 -0700 | [diff] [blame] | 1047 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1048 | channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 1, 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1049 | |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1050 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1051 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1052 | } |
| 1053 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1054 | void grpc_server_cancel_all_calls(grpc_server *server) { |
Craig Tiller | 092d8d1 | 2015-07-04 22:35:00 -0700 | [diff] [blame] | 1055 | channel_broadcaster broadcaster; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1056 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1057 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1058 | GRPC_API_TRACE("grpc_server_cancel_all_calls(server=%p)", 1, (server)); |
| 1059 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1060 | gpr_mu_lock(&server->mu_global); |
| 1061 | channel_broadcaster_init(server, &broadcaster); |
| 1062 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1063 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1064 | channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 0, 1); |
| 1065 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | afa2d63 | 2015-05-26 16:39:13 -0700 | [diff] [blame] | 1066 | } |
| 1067 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1068 | void grpc_server_destroy(grpc_server *server) { |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1069 | listener *l; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1070 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | 872af02 | 2015-04-24 15:57:52 -0700 | [diff] [blame] | 1071 | |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1072 | GRPC_API_TRACE("grpc_server_destroy(server=%p)", 1, (server)); |
| 1073 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1074 | gpr_mu_lock(&server->mu_global); |
| 1075 | GPR_ASSERT(gpr_atm_acq_load(&server->shutdown_flag) || !server->listeners); |
| 1076 | GPR_ASSERT(server->listeners_destroyed == num_listeners(server)); |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1077 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1078 | while (server->listeners) { |
| 1079 | l = server->listeners; |
| 1080 | server->listeners = l->next; |
| 1081 | gpr_free(l); |
| 1082 | } |
Craig Tiller | aec96aa | 2015-04-07 14:32:15 -0700 | [diff] [blame] | 1083 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1084 | gpr_mu_unlock(&server->mu_global); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1085 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1086 | server_unref(&exec_ctx, server); |
| 1087 | grpc_exec_ctx_finish(&exec_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1088 | } |
| 1089 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1090 | void grpc_server_add_listener( |
| 1091 | grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1092 | void (*start)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1093 | grpc_pollset **pollsets, size_t pollset_count), |
| 1094 | void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_server *server, void *arg, |
| 1095 | grpc_closure *on_done)) { |
| 1096 | listener *l = gpr_malloc(sizeof(listener)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1097 | l->arg = arg; |
| 1098 | l->start = start; |
| 1099 | l->destroy = destroy; |
| 1100 | l->next = server->listeners; |
| 1101 | server->listeners = l; |
| 1102 | } |
| 1103 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1104 | static grpc_call_error queue_call_request(grpc_exec_ctx *exec_ctx, |
| 1105 | grpc_server *server, |
| 1106 | requested_call *rc) { |
Yang Gao | eb8e7cd | 2015-02-11 11:43:40 -0800 | [diff] [blame] | 1107 | call_data *calld = NULL; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1108 | request_matcher *rm = NULL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1109 | int request_id; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1110 | if (gpr_atm_acq_load(&server->shutdown_flag)) { |
| 1111 | fail_call(exec_ctx, server, rc); |
| 1112 | return GRPC_CALL_OK; |
| 1113 | } |
| 1114 | request_id = gpr_stack_lockfree_pop(server->request_freelist); |
| 1115 | if (request_id == -1) { |
| 1116 | /* out of request ids: just fail this one */ |
| 1117 | fail_call(exec_ctx, server, rc); |
| 1118 | return GRPC_CALL_OK; |
| 1119 | } |
| 1120 | switch (rc->type) { |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1121 | case BATCH_CALL: |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1122 | rm = &server->unregistered_request_matcher; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1123 | break; |
| 1124 | case REGISTERED_CALL: |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1125 | rm = &rc->data.registered.registered_method->request_matcher; |
Craig Tiller | 04cc8be | 2015-02-10 16:11:22 -0800 | [diff] [blame] | 1126 | break; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1127 | } |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 1128 | server->requested_calls[request_id] = *rc; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1129 | gpr_free(rc); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1130 | if (gpr_stack_lockfree_push(rm->requests, request_id)) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1131 | /* this was the first queued request: we need to lock and start |
| 1132 | matching calls */ |
| 1133 | gpr_mu_lock(&server->mu_call); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1134 | while ((calld = rm->pending_head) != NULL) { |
| 1135 | request_id = gpr_stack_lockfree_pop(rm->requests); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1136 | if (request_id == -1) break; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1137 | rm->pending_head = calld->pending_next; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1138 | gpr_mu_unlock(&server->mu_call); |
| 1139 | gpr_mu_lock(&calld->mu_state); |
| 1140 | if (calld->state == ZOMBIED) { |
| 1141 | gpr_mu_unlock(&calld->mu_state); |
| 1142 | grpc_closure_init( |
| 1143 | &calld->kill_zombie_closure, kill_zombie, |
| 1144 | grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0)); |
| 1145 | grpc_exec_ctx_enqueue(exec_ctx, &calld->kill_zombie_closure, 1); |
| 1146 | } else { |
| 1147 | GPR_ASSERT(calld->state == PENDING); |
| 1148 | calld->state = ACTIVATED; |
| 1149 | gpr_mu_unlock(&calld->mu_state); |
| 1150 | begin_call(exec_ctx, server, calld, |
| 1151 | &server->requested_calls[request_id]); |
| 1152 | } |
| 1153 | gpr_mu_lock(&server->mu_call); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 1154 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1155 | gpr_mu_unlock(&server->mu_call); |
| 1156 | } |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1157 | return GRPC_CALL_OK; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 1158 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1159 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1160 | grpc_call_error grpc_server_request_call( |
| 1161 | grpc_server *server, grpc_call **call, grpc_call_details *details, |
| 1162 | grpc_metadata_array *initial_metadata, |
| 1163 | grpc_completion_queue *cq_bound_to_call, |
| 1164 | grpc_completion_queue *cq_for_notification, void *tag) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1165 | grpc_call_error error; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1166 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1167 | requested_call *rc = gpr_malloc(sizeof(*rc)); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1168 | GRPC_API_TRACE( |
| 1169 | "grpc_server_request_call(" |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 1170 | "server=%p, call=%p, details=%p, initial_metadata=%p, " |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1171 | "cq_bound_to_call=%p, cq_for_notification=%p, tag=%p)", |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1172 | 7, (server, call, details, initial_metadata, cq_bound_to_call, |
| 1173 | cq_for_notification, tag)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1174 | if (!grpc_cq_is_server_cq(cq_for_notification)) { |
| 1175 | gpr_free(rc); |
| 1176 | error = GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE; |
| 1177 | goto done; |
| 1178 | } |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame^] | 1179 | grpc_cq_begin_op(cq_for_notification, tag); |
Craig Tiller | 9928d39 | 2015-08-18 09:40:24 -0700 | [diff] [blame] | 1180 | details->reserved = NULL; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1181 | rc->type = BATCH_CALL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1182 | rc->server = server; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1183 | rc->tag = tag; |
| 1184 | rc->cq_bound_to_call = cq_bound_to_call; |
| 1185 | rc->cq_for_notification = cq_for_notification; |
| 1186 | rc->call = call; |
| 1187 | rc->data.batch.details = details; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1188 | rc->initial_metadata = initial_metadata; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1189 | error = queue_call_request(&exec_ctx, server, rc); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1190 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1191 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1192 | return error; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1193 | } |
| 1194 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1195 | grpc_call_error grpc_server_request_registered_call( |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1196 | grpc_server *server, void *rmp, grpc_call **call, gpr_timespec *deadline, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1197 | grpc_metadata_array *initial_metadata, grpc_byte_buffer **optional_payload, |
| 1198 | grpc_completion_queue *cq_bound_to_call, |
| 1199 | grpc_completion_queue *cq_for_notification, void *tag) { |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1200 | grpc_call_error error; |
Craig Tiller | f5768a6 | 2015-09-22 10:54:34 -0700 | [diff] [blame] | 1201 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1202 | requested_call *rc = gpr_malloc(sizeof(*rc)); |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1203 | registered_method *rm = rmp; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1204 | GRPC_API_TRACE( |
| 1205 | "grpc_server_request_registered_call(" |
Craig Tiller | 4de3e4f | 2015-10-05 08:55:50 -0700 | [diff] [blame] | 1206 | "server=%p, rmp=%p, call=%p, deadline=%p, initial_metadata=%p, " |
| 1207 | "optional_payload=%p, cq_bound_to_call=%p, cq_for_notification=%p, " |
| 1208 | "tag=%p)", |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 1209 | 9, (server, rmp, call, deadline, initial_metadata, optional_payload, |
| 1210 | cq_bound_to_call, cq_for_notification, tag)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1211 | if (!grpc_cq_is_server_cq(cq_for_notification)) { |
| 1212 | gpr_free(rc); |
| 1213 | error = GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE; |
| 1214 | goto done; |
| 1215 | } |
Craig Tiller | 4bf2928 | 2015-12-14 11:25:48 -0800 | [diff] [blame^] | 1216 | grpc_cq_begin_op(cq_for_notification, tag); |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1217 | rc->type = REGISTERED_CALL; |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1218 | rc->server = server; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1219 | rc->tag = tag; |
| 1220 | rc->cq_bound_to_call = cq_bound_to_call; |
| 1221 | rc->cq_for_notification = cq_for_notification; |
| 1222 | rc->call = call; |
Craig Tiller | b9d3596 | 2015-09-11 13:31:16 -0700 | [diff] [blame] | 1223 | rc->data.registered.registered_method = rm; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1224 | rc->data.registered.deadline = deadline; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1225 | rc->initial_metadata = initial_metadata; |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1226 | rc->data.registered.optional_payload = optional_payload; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1227 | error = queue_call_request(&exec_ctx, server, rc); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1228 | done: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1229 | grpc_exec_ctx_finish(&exec_ctx); |
Craig Tiller | dfff1b8 | 2015-09-21 14:39:57 -0700 | [diff] [blame] | 1230 | return error; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1231 | } |
| 1232 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1233 | static void publish_registered_or_batch(grpc_exec_ctx *exec_ctx, |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1234 | void *user_data, int success); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1235 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1236 | static void cpstr(char **dest, size_t *capacity, grpc_mdstr *value) { |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 1237 | gpr_slice slice = value->slice; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1238 | size_t len = GPR_SLICE_LENGTH(slice); |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 1239 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1240 | if (len + 1 > *capacity) { |
| 1241 | *capacity = GPR_MAX(len + 1, *capacity * 2); |
| 1242 | *dest = gpr_realloc(*dest, *capacity); |
| 1243 | } |
| 1244 | memcpy(*dest, grpc_mdstr_as_c_string(value), len + 1); |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 1245 | } |
| 1246 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1247 | static void begin_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
| 1248 | call_data *calld, requested_call *rc) { |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1249 | grpc_op ops[1]; |
| 1250 | grpc_op *op = ops; |
| 1251 | |
| 1252 | memset(ops, 0, sizeof(ops)); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1253 | |
| 1254 | /* called once initial metadata has been read by the call, but BEFORE |
| 1255 | the ioreq to fetch it out of the call has been executed. |
| 1256 | This means metadata related fields can be relied on in calld, but to |
| 1257 | fill in the metadata array passed by the client, we need to perform |
| 1258 | an ioreq op, that should complete immediately. */ |
| 1259 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1260 | grpc_call_set_completion_queue(exec_ctx, calld->call, rc->cq_bound_to_call); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1261 | grpc_closure_init(&rc->publish, publish_registered_or_batch, rc); |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 1262 | *rc->call = calld->call; |
| 1263 | calld->cq_new = rc->cq_for_notification; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1264 | GPR_SWAP(grpc_metadata_array, *rc->initial_metadata, calld->initial_metadata); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1265 | switch (rc->type) { |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1266 | case BATCH_CALL: |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1267 | GPR_ASSERT(calld->host != NULL); |
| 1268 | GPR_ASSERT(calld->path != NULL); |
| 1269 | cpstr(&rc->data.batch.details->host, |
| 1270 | &rc->data.batch.details->host_capacity, calld->host); |
| 1271 | cpstr(&rc->data.batch.details->method, |
| 1272 | &rc->data.batch.details->method_capacity, calld->path); |
Masood Malekghassemi | bf177c8 | 2015-04-27 12:14:38 -0700 | [diff] [blame] | 1273 | rc->data.batch.details->deadline = calld->deadline; |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1274 | break; |
| 1275 | case REGISTERED_CALL: |
| 1276 | *rc->data.registered.deadline = calld->deadline; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1277 | if (rc->data.registered.optional_payload) { |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1278 | op->op = GRPC_OP_RECV_MESSAGE; |
| 1279 | op->data.recv_message = rc->data.registered.optional_payload; |
| 1280 | op++; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1281 | } |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1282 | break; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1283 | default: |
| 1284 | GPR_UNREACHABLE_CODE(return ); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1285 | } |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1286 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1287 | GRPC_CALL_INTERNAL_REF(calld->call, "server"); |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1288 | grpc_call_start_batch_and_execute(exec_ctx, calld->call, ops, |
| 1289 | (size_t)(op - ops), &rc->publish); |
Craig Tiller | 97fc6a3 | 2015-07-08 15:31:35 -0700 | [diff] [blame] | 1290 | } |
| 1291 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1292 | static void done_request_event(grpc_exec_ctx *exec_ctx, void *req, |
| 1293 | grpc_cq_completion *c) { |
Craig Tiller | 6a006ce | 2015-07-13 16:25:40 -0700 | [diff] [blame] | 1294 | requested_call *rc = req; |
| 1295 | grpc_server *server = rc->server; |
| 1296 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1297 | if (rc >= server->requested_calls && |
| 1298 | rc < server->requested_calls + server->max_requested_calls) { |
| 1299 | GPR_ASSERT(rc - server->requested_calls <= INT_MAX); |
| 1300 | gpr_stack_lockfree_push(server->request_freelist, |
| 1301 | (int)(rc - server->requested_calls)); |
| 1302 | } else { |
| 1303 | gpr_free(req); |
| 1304 | } |
Craig Tiller | e2b3bfa | 2015-07-30 10:40:22 -0700 | [diff] [blame] | 1305 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1306 | server_unref(exec_ctx, server); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1307 | } |
| 1308 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1309 | static void fail_call(grpc_exec_ctx *exec_ctx, grpc_server *server, |
| 1310 | requested_call *rc) { |
Craig Tiller | f9e6adf | 2015-05-06 11:45:59 -0700 | [diff] [blame] | 1311 | *rc->call = NULL; |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1312 | rc->initial_metadata->count = 0; |
| 1313 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1314 | server_ref(server); |
| 1315 | grpc_cq_end_op(exec_ctx, rc->cq_for_notification, rc->tag, 0, |
| 1316 | done_request_event, rc, &rc->completion); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1317 | } |
| 1318 | |
Craig Tiller | c7e1a2a | 2015-11-02 14:17:32 -0800 | [diff] [blame] | 1319 | static void publish_registered_or_batch(grpc_exec_ctx *exec_ctx, void *prc, |
| 1320 | int success) { |
| 1321 | requested_call *rc = prc; |
| 1322 | grpc_call *call = *rc->call; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1323 | grpc_call_element *elem = |
| 1324 | grpc_call_stack_element(grpc_call_get_call_stack(call), 0); |
Craig Tiller | 20bc56d | 2015-02-12 09:02:56 -0800 | [diff] [blame] | 1325 | call_data *calld = elem->call_data; |
Craig Tiller | e2b3bfa | 2015-07-30 10:40:22 -0700 | [diff] [blame] | 1326 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1327 | server_ref(chand->server); |
| 1328 | grpc_cq_end_op(exec_ctx, calld->cq_new, rc->tag, success, done_request_event, |
| 1329 | rc, &rc->completion); |
| 1330 | GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "server"); |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 1331 | } |
| 1332 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1333 | const grpc_channel_args *grpc_server_get_channel_args(grpc_server *server) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1334 | return server->channel_args; |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 1335 | } |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1336 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1337 | int grpc_server_has_open_connections(grpc_server *server) { |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1338 | int r; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1339 | gpr_mu_lock(&server->mu_global); |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1340 | r = server->root_channel_data.next != &server->root_channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 1341 | gpr_mu_unlock(&server->mu_global); |
Craig Tiller | ba3c3cd | 2015-05-26 06:28:10 -0700 | [diff] [blame] | 1342 | return r; |
| 1343 | } |