| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <memory.h> |
| |
| #include <grpc/census.h> |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/time.h> |
| #include "src/core/channel/channel_stack.h" |
| #include "src/core/client_config/resolver_registry.h" |
| #include "src/core/client_config/resolvers/dns_resolver.h" |
| #include "src/core/client_config/resolvers/sockaddr_resolver.h" |
| #include "src/core/debug/trace.h" |
| #include "src/core/iomgr/iomgr.h" |
| #include "src/core/profiling/timers.h" |
| #include "src/core/surface/call.h" |
| #include "src/core/surface/init.h" |
| #include "src/core/surface/surface_trace.h" |
| #include "src/core/transport/chttp2_transport.h" |
| #include "src/core/transport/connectivity_state.h" |
| |
| static gpr_once g_basic_init = GPR_ONCE_INIT; |
| static gpr_mu g_init_mu; |
| static int g_initializations; |
| |
| static void do_basic_init(void) { |
| gpr_mu_init(&g_init_mu); |
| g_initializations = 0; |
| } |
| |
| typedef struct grpc_plugin { |
| void (*init)(); |
| void (*deinit)(); |
| struct grpc_plugin *next; |
| } grpc_plugin; |
| |
| static grpc_plugin *g_plugins_head = NULL; |
| |
| static grpc_plugin *new_plugin(void (*init)(void), void (*deinit)(void)) { |
| grpc_plugin *plugin = gpr_malloc(sizeof(*plugin)); |
| memset(plugin, 0, sizeof(*plugin)); |
| plugin->init = init; |
| plugin->deinit = deinit; |
| |
| return plugin; |
| } |
| |
| void grpc_register_plugin(void (*init)(void), void (*deinit)(void)) { |
| grpc_plugin *old_head = g_plugins_head; |
| g_plugins_head = new_plugin(init, deinit); |
| g_plugins_head->next = old_head; |
| } |
| |
| void grpc_unregister_all_plugins() { |
| grpc_plugin *plugin; |
| grpc_plugin *next; |
| |
| for (plugin = g_plugins_head; plugin != NULL; plugin = next) { |
| next = plugin->next; |
| gpr_free(plugin); |
| } |
| g_plugins_head = NULL; |
| } |
| |
| void grpc_init(void) { |
| grpc_plugin *plugin; |
| gpr_once_init(&g_basic_init, do_basic_init); |
| |
| gpr_mu_lock(&g_init_mu); |
| if (++g_initializations == 1) { |
| gpr_time_init(); |
| grpc_resolver_registry_init("dns:///"); |
| grpc_register_resolver_type("dns", grpc_dns_resolver_factory_create()); |
| grpc_register_resolver_type("ipv4", grpc_ipv4_resolver_factory_create()); |
| grpc_register_resolver_type("ipv6", grpc_ipv6_resolver_factory_create()); |
| #ifdef GPR_POSIX_SOCKET |
| grpc_register_resolver_type("unix", grpc_unix_resolver_factory_create()); |
| #endif |
| grpc_register_tracer("channel", &grpc_trace_channel); |
| grpc_register_tracer("surface", &grpc_surface_trace); |
| grpc_register_tracer("http", &grpc_http_trace); |
| grpc_register_tracer("flowctl", &grpc_flowctl_trace); |
| grpc_register_tracer("batch", &grpc_trace_batch); |
| grpc_register_tracer("connectivity_state", &grpc_connectivity_state_trace); |
| grpc_security_pre_init(); |
| grpc_iomgr_init(); |
| grpc_tracer_init("GRPC_TRACE"); |
| /* Only initialize census if noone else has. */ |
| if (census_enabled() == CENSUS_FEATURE_NONE) { |
| if (census_initialize(census_supported())) { /* enable all features. */ |
| gpr_log(GPR_ERROR, "Could not initialize census."); |
| } |
| } |
| grpc_timers_global_init(); |
| for (plugin = g_plugins_head; plugin != NULL; plugin = plugin->next) { |
| if (plugin->init) { |
| plugin->init(); |
| } |
| } |
| } |
| gpr_mu_unlock(&g_init_mu); |
| } |
| |
| void grpc_shutdown(void) { |
| grpc_plugin *plugin; |
| grpc_plugin *next; |
| |
| gpr_mu_lock(&g_init_mu); |
| if (--g_initializations == 0) { |
| grpc_iomgr_shutdown(); |
| census_shutdown(); |
| grpc_timers_global_destroy(); |
| grpc_tracer_shutdown(); |
| grpc_resolver_registry_shutdown(); |
| for (plugin = g_plugins_head; plugin != NULL; plugin = next) { |
| if (plugin->deinit) { |
| plugin->deinit(); |
| } |
| next = plugin->next; |
| } |
| } |
| gpr_mu_unlock(&g_init_mu); |
| } |
| |
| int grpc_is_initialized(void) { |
| int r; |
| gpr_once_init(&g_basic_init, do_basic_init); |
| gpr_mu_lock(&g_init_mu); |
| r = g_initializations > 0; |
| gpr_mu_unlock(&g_init_mu); |
| return r; |
| } |