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/*
*
* 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"
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_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_security_pre_init();
grpc_iomgr_init();
grpc_tracer_init("GRPC_TRACE");
if (census_initialize(CENSUS_NONE)) {
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_free(plugin);
}
}
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;
}
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