Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 3 | * Copyright 2015 gRPC authors. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 8 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 10 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 16 | * |
| 17 | */ |
| 18 | |
Craig Tiller | acf0f07 | 2015-06-29 08:24:16 -0700 | [diff] [blame] | 19 | #include <grpc/support/port_platform.h> |
| 20 | |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 21 | #include <limits.h> |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 22 | #include <memory.h> |
| 23 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 24 | #include <grpc/grpc.h> |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 25 | #include <grpc/support/alloc.h> |
Yuchen Zeng | 95e4c48 | 2016-04-15 10:38:24 -0700 | [diff] [blame] | 26 | #include <grpc/support/log.h> |
Craig Tiller | f3756c1 | 2015-07-01 17:21:01 -0700 | [diff] [blame] | 27 | #include <grpc/support/time.h> |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 28 | #include "src/core/lib/channel/channel_stack.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 29 | #include "src/core/lib/channel/connected_channel.h" |
Mark D. Roth | 1f0f23c | 2017-01-06 13:07:19 -0800 | [diff] [blame] | 30 | #include "src/core/lib/channel/handshaker_registry.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 31 | #include "src/core/lib/debug/trace.h" |
Craig Tiller | 3ab2fe0 | 2016-04-11 20:11:18 -0700 | [diff] [blame] | 32 | #include "src/core/lib/http/parser.h" |
Craig Tiller | c3df7b4 | 2016-07-18 15:51:26 -0700 | [diff] [blame] | 33 | #include "src/core/lib/iomgr/combiner.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 34 | #include "src/core/lib/iomgr/executor.h" |
| 35 | #include "src/core/lib/iomgr/iomgr.h" |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 36 | #include "src/core/lib/iomgr/resource_quota.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 37 | #include "src/core/lib/profiling/timers.h" |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 38 | #include "src/core/lib/slice/slice_internal.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 39 | #include "src/core/lib/surface/api_trace.h" |
| 40 | #include "src/core/lib/surface/call.h" |
| 41 | #include "src/core/lib/surface/channel_init.h" |
| 42 | #include "src/core/lib/surface/completion_queue.h" |
| 43 | #include "src/core/lib/surface/init.h" |
| 44 | #include "src/core/lib/surface/lame_client.h" |
| 45 | #include "src/core/lib/surface/server.h" |
Craig Tiller | efbd7c2 | 2017-01-27 14:07:44 -0800 | [diff] [blame] | 46 | #include "src/core/lib/transport/bdp_estimator.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 47 | #include "src/core/lib/transport/connectivity_state.h" |
| 48 | #include "src/core/lib/transport/transport_impl.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 49 | |
Craig Tiller | 3113ef4 | 2016-03-29 09:03:14 -0700 | [diff] [blame] | 50 | /* (generated) built in registry of plugins */ |
| 51 | extern void grpc_register_built_in_plugins(void); |
| 52 | |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 53 | #define MAX_PLUGINS 128 |
| 54 | |
Craig Tiller | 8ace0bc | 2015-03-05 17:16:09 -0800 | [diff] [blame] | 55 | static gpr_once g_basic_init = GPR_ONCE_INIT; |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 56 | static gpr_mu g_init_mu; |
| 57 | static int g_initializations; |
| 58 | |
Craig Tiller | 8ace0bc | 2015-03-05 17:16:09 -0800 | [diff] [blame] | 59 | static void do_basic_init(void) { |
Yuchen Zeng | 95e4c48 | 2016-04-15 10:38:24 -0700 | [diff] [blame] | 60 | gpr_log_verbosity_init(); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 61 | gpr_mu_init(&g_init_mu); |
Craig Tiller | 3113ef4 | 2016-03-29 09:03:14 -0700 | [diff] [blame] | 62 | grpc_register_built_in_plugins(); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 63 | g_initializations = 0; |
| 64 | } |
| 65 | |
Craig Tiller | 87a7e1f | 2016-11-09 09:42:19 -0800 | [diff] [blame] | 66 | static bool append_filter(grpc_exec_ctx *exec_ctx, |
| 67 | grpc_channel_stack_builder *builder, void *arg) { |
vjpai | e7077b5 | 2016-03-21 20:58:44 -0700 | [diff] [blame] | 68 | return grpc_channel_stack_builder_append_filter( |
| 69 | builder, (const grpc_channel_filter *)arg, NULL, NULL); |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 70 | } |
| 71 | |
Craig Tiller | 87a7e1f | 2016-11-09 09:42:19 -0800 | [diff] [blame] | 72 | static bool prepend_filter(grpc_exec_ctx *exec_ctx, |
| 73 | grpc_channel_stack_builder *builder, void *arg) { |
vjpai | e7077b5 | 2016-03-21 20:58:44 -0700 | [diff] [blame] | 74 | return grpc_channel_stack_builder_prepend_filter( |
| 75 | builder, (const grpc_channel_filter *)arg, NULL, NULL); |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 76 | } |
| 77 | |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 78 | static void register_builtin_channel_init() { |
Craig Tiller | f82ddc4 | 2016-04-05 17:15:07 -0700 | [diff] [blame] | 79 | grpc_channel_init_register_stage(GRPC_CLIENT_SUBCHANNEL, |
| 80 | GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 81 | grpc_add_connected_filter, NULL); |
Craig Tiller | f82ddc4 | 2016-04-05 17:15:07 -0700 | [diff] [blame] | 82 | grpc_channel_init_register_stage(GRPC_CLIENT_DIRECT_CHANNEL, |
| 83 | GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, |
Craig Tiller | de67626 | 2016-02-19 12:28:34 -0800 | [diff] [blame] | 84 | grpc_add_connected_filter, NULL); |
Craig Tiller | f82ddc4 | 2016-04-05 17:15:07 -0700 | [diff] [blame] | 85 | grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, |
| 86 | GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 87 | grpc_add_connected_filter, NULL); |
Craig Tiller | f82ddc4 | 2016-04-05 17:15:07 -0700 | [diff] [blame] | 88 | grpc_channel_init_register_stage(GRPC_CLIENT_LAME_CHANNEL, |
| 89 | GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 90 | append_filter, (void *)&grpc_lame_filter); |
Craig Tiller | 8166732 | 2016-04-06 07:47:01 -0700 | [diff] [blame] | 91 | grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, prepend_filter, |
| 92 | (void *)&grpc_server_top_filter); |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 93 | } |
| 94 | |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 95 | typedef struct grpc_plugin { |
| 96 | void (*init)(); |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 97 | void (*destroy)(); |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 98 | } grpc_plugin; |
| 99 | |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 100 | static grpc_plugin g_all_of_the_plugins[MAX_PLUGINS]; |
| 101 | static int g_number_of_plugins = 0; |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 102 | |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 103 | void grpc_register_plugin(void (*init)(void), void (*destroy)(void)) { |
Jan Tattermusch | 1b34aeb | 2015-12-17 10:37:10 -0800 | [diff] [blame] | 104 | GRPC_API_TRACE("grpc_register_plugin(init=%p, destroy=%p)", 2, |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 105 | ((void *)(intptr_t)init, (void *)(intptr_t)destroy)); |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 106 | GPR_ASSERT(g_number_of_plugins != MAX_PLUGINS); |
| 107 | g_all_of_the_plugins[g_number_of_plugins].init = init; |
| 108 | g_all_of_the_plugins[g_number_of_plugins].destroy = destroy; |
| 109 | g_number_of_plugins++; |
Hongwei Wang | ff6097a | 2015-08-12 17:48:56 -0700 | [diff] [blame] | 110 | } |
| 111 | |
Craig Tiller | 32946d3 | 2015-01-15 11:37:30 -0800 | [diff] [blame] | 112 | void grpc_init(void) { |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 113 | int i; |
Craig Tiller | 8ace0bc | 2015-03-05 17:16:09 -0800 | [diff] [blame] | 114 | gpr_once_init(&g_basic_init, do_basic_init); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 115 | |
Craig Tiller | 5e56f00 | 2017-05-16 15:02:50 -0700 | [diff] [blame] | 116 | grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 117 | gpr_mu_lock(&g_init_mu); |
| 118 | if (++g_initializations == 1) { |
Craig Tiller | f3756c1 | 2015-07-01 17:21:01 -0700 | [diff] [blame] | 119 | gpr_time_init(); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 120 | grpc_slice_intern_init(); |
Craig Tiller | 0e72ede | 2015-11-19 07:48:53 -0800 | [diff] [blame] | 121 | grpc_mdctx_global_init(); |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 122 | grpc_channel_init_init(); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 123 | grpc_register_tracer("api", &grpc_api_trace); |
Craig Tiller | faa8480 | 2015-03-01 21:56:38 -0800 | [diff] [blame] | 124 | grpc_register_tracer("channel", &grpc_trace_channel); |
Craig Tiller | 1ada6ad | 2015-07-16 16:19:14 -0700 | [diff] [blame] | 125 | grpc_register_tracer("connectivity_state", &grpc_connectivity_state_trace); |
Craig Tiller | d78d164 | 2016-02-21 22:18:51 -0800 | [diff] [blame] | 126 | grpc_register_tracer("channel_stack_builder", |
| 127 | &grpc_trace_channel_stack_builder); |
Craig Tiller | 3ab2fe0 | 2016-04-11 20:11:18 -0700 | [diff] [blame] | 128 | grpc_register_tracer("http1", &grpc_http1_trace); |
ncteisen | 3bc2558 | 2017-06-09 10:35:35 -0700 | [diff] [blame] | 129 | grpc_register_tracer("queue_pluck", &grpc_cq_pluck_trace); // default on |
Craig Tiller | c3df7b4 | 2016-07-18 15:51:26 -0700 | [diff] [blame] | 130 | grpc_register_tracer("combiner", &grpc_combiner_trace); |
Craig Tiller | 687a0e6 | 2016-09-21 10:48:59 -0700 | [diff] [blame] | 131 | grpc_register_tracer("server_channel", &grpc_server_channel_trace); |
Craig Tiller | efbd7c2 | 2017-01-27 14:07:44 -0800 | [diff] [blame] | 132 | grpc_register_tracer("bdp_estimator", &grpc_bdp_estimator_trace); |
ncteisen | 3bc2558 | 2017-06-09 10:35:35 -0700 | [diff] [blame] | 133 | grpc_register_tracer("queue_timeout", |
| 134 | &grpc_cq_event_timeout_trace); // default on |
Craig Tiller | a286b04 | 2016-06-13 15:20:39 +0000 | [diff] [blame] | 135 | grpc_register_tracer("op_failure", &grpc_trace_operation_failures); |
Craig Tiller | 20afa3d | 2016-10-17 14:52:14 -0700 | [diff] [blame] | 136 | grpc_register_tracer("resource_quota", &grpc_resource_quota_trace); |
Craig Tiller | 58b30cd | 2017-01-31 17:07:36 -0800 | [diff] [blame] | 137 | grpc_register_tracer("call_error", &grpc_call_error_trace); |
Craig Tiller | 4e41e36 | 2016-08-19 13:12:54 -0700 | [diff] [blame] | 138 | #ifndef NDEBUG |
| 139 | grpc_register_tracer("pending_tags", &grpc_trace_pending_tags); |
ncteisen | d39010e | 2017-06-08 17:08:07 -0700 | [diff] [blame] | 140 | grpc_register_tracer("queue_refcount", &grpc_trace_cq_refcount); |
ncteisen | f0c46e3 | 2017-06-08 15:57:09 -0700 | [diff] [blame] | 141 | grpc_register_tracer("closure", &grpc_trace_closure); |
| 142 | grpc_register_tracer("error_refcount", &grpc_trace_error_refcount); |
ncteisen | 9c43fc0 | 2017-06-08 16:06:23 -0700 | [diff] [blame] | 143 | grpc_register_tracer("stream_refcount", &grpc_trace_stream_refcount); |
ncteisen | d39010e | 2017-06-08 17:08:07 -0700 | [diff] [blame] | 144 | grpc_register_tracer("fd_refcount", &grpc_trace_fd_refcount); |
ncteisen | 4b58405 | 2017-06-08 16:44:38 -0700 | [diff] [blame] | 145 | grpc_register_tracer("metadata", &grpc_trace_metadata); |
Craig Tiller | 4e41e36 | 2016-08-19 13:12:54 -0700 | [diff] [blame] | 146 | #endif |
Craig Tiller | faa8480 | 2015-03-01 21:56:38 -0800 | [diff] [blame] | 147 | grpc_security_pre_init(); |
Craig Tiller | 5e56f00 | 2017-05-16 15:02:50 -0700 | [diff] [blame] | 148 | grpc_iomgr_init(&exec_ctx); |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 149 | gpr_timers_global_init(); |
Mark D. Roth | 1f0f23c | 2017-01-06 13:07:19 -0800 | [diff] [blame] | 150 | grpc_handshaker_factory_registry_init(); |
| 151 | grpc_security_init(); |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 152 | for (i = 0; i < g_number_of_plugins; i++) { |
| 153 | if (g_all_of_the_plugins[i].init != NULL) { |
| 154 | g_all_of_the_plugins[i].init(); |
Hongwei Wang | 35d5a0f | 2015-07-24 11:14:23 -0700 | [diff] [blame] | 155 | } |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 156 | } |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 157 | /* register channel finalization AFTER all plugins, to ensure that it's run |
| 158 | * at the appropriate time */ |
| 159 | grpc_register_security_filters(); |
| 160 | register_builtin_channel_init(); |
David Garcia Quintas | eb91310 | 2016-04-25 17:30:04 -0700 | [diff] [blame] | 161 | grpc_tracer_init("GRPC_TRACE"); |
Craig Tiller | 178edfa | 2016-02-17 20:54:46 -0800 | [diff] [blame] | 162 | /* no more changes to channel init pipelines */ |
| 163 | grpc_channel_init_finalize(); |
Craig Tiller | 5e56f00 | 2017-05-16 15:02:50 -0700 | [diff] [blame] | 164 | grpc_iomgr_start(&exec_ctx); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 165 | } |
| 166 | gpr_mu_unlock(&g_init_mu); |
Craig Tiller | 5e56f00 | 2017-05-16 15:02:50 -0700 | [diff] [blame] | 167 | grpc_exec_ctx_finish(&exec_ctx); |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 168 | GRPC_API_TRACE("grpc_init(void)", 0, ()); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 169 | } |
| 170 | |
Craig Tiller | 32946d3 | 2015-01-15 11:37:30 -0800 | [diff] [blame] | 171 | void grpc_shutdown(void) { |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 172 | int i; |
Masood Malekghassemi | 76c3d74 | 2015-08-19 18:22:53 -0700 | [diff] [blame] | 173 | GRPC_API_TRACE("grpc_shutdown(void)", 0, ()); |
Craig Tiller | b9b01ce | 2017-05-12 13:47:10 -0700 | [diff] [blame] | 174 | grpc_exec_ctx exec_ctx = |
| 175 | GRPC_EXEC_CTX_INITIALIZER(0, grpc_never_ready_to_finish, NULL); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 176 | gpr_mu_lock(&g_init_mu); |
| 177 | if (--g_initializations == 0) { |
Craig Tiller | 3cf7922 | 2016-11-14 08:02:45 -0800 | [diff] [blame] | 178 | grpc_iomgr_shutdown(&exec_ctx); |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 179 | gpr_timers_global_destroy(); |
Craig Tiller | 2f300e2 | 2015-06-04 08:28:43 -0700 | [diff] [blame] | 180 | grpc_tracer_shutdown(); |
Craig Tiller | f82ddc4 | 2016-04-05 17:15:07 -0700 | [diff] [blame] | 181 | for (i = g_number_of_plugins; i >= 0; i--) { |
Hongwei Wang | 85ad685 | 2015-08-13 16:13:10 -0700 | [diff] [blame] | 182 | if (g_all_of_the_plugins[i].destroy != NULL) { |
| 183 | g_all_of_the_plugins[i].destroy(); |
Hongwei Wang | 35d5a0f | 2015-07-24 11:14:23 -0700 | [diff] [blame] | 184 | } |
Hongwei Wang | a3780a8 | 2015-07-17 15:27:18 -0700 | [diff] [blame] | 185 | } |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 186 | grpc_mdctx_global_shutdown(&exec_ctx); |
Mark D. Roth | 1f0f23c | 2017-01-06 13:07:19 -0800 | [diff] [blame] | 187 | grpc_handshaker_factory_registry_shutdown(&exec_ctx); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 188 | grpc_slice_intern_shutdown(); |
Craig Tiller | 35108f6 | 2015-02-17 11:24:15 -0800 | [diff] [blame] | 189 | } |
| 190 | gpr_mu_unlock(&g_init_mu); |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 191 | grpc_exec_ctx_finish(&exec_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 192 | } |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 193 | |
| 194 | int grpc_is_initialized(void) { |
| 195 | int r; |
Craig Tiller | 8ace0bc | 2015-03-05 17:16:09 -0800 | [diff] [blame] | 196 | gpr_once_init(&g_basic_init, do_basic_init); |
Craig Tiller | 60fd361 | 2015-03-05 16:24:22 -0800 | [diff] [blame] | 197 | gpr_mu_lock(&g_init_mu); |
| 198 | r = g_initializations > 0; |
| 199 | gpr_mu_unlock(&g_init_mu); |
| 200 | return r; |
| 201 | } |