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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 "src/core/lib/client_config/lb_policy_registry.h"
#include <string.h>
#define MAX_POLICIES 10
static grpc_lb_policy_factory *g_all_of_the_lb_policies[MAX_POLICIES];
static int g_number_of_lb_policies = 0;
static grpc_lb_policy_factory *g_default_lb_policy_factory;
void grpc_lb_policy_registry_init(grpc_lb_policy_factory *default_factory) {
g_number_of_lb_policies = 0;
g_default_lb_policy_factory = default_factory;
}
void grpc_lb_policy_registry_shutdown(void) {
int i;
for (i = 0; i < g_number_of_lb_policies; i++) {
grpc_lb_policy_factory_unref(g_all_of_the_lb_policies[i]);
}
}
void grpc_register_lb_policy(grpc_lb_policy_factory *factory) {
int i;
for (i = 0; i < g_number_of_lb_policies; i++) {
GPR_ASSERT(0 != strcmp(factory->vtable->name,
g_all_of_the_lb_policies[i]->vtable->name));
}
GPR_ASSERT(g_number_of_lb_policies != MAX_POLICIES);
grpc_lb_policy_factory_ref(factory);
g_all_of_the_lb_policies[g_number_of_lb_policies++] = factory;
}
static grpc_lb_policy_factory *lookup_factory(const char *name) {
int i;
if (name == NULL) return NULL;
for (i = 0; i < g_number_of_lb_policies; i++) {
if (0 == strcmp(name, g_all_of_the_lb_policies[i]->vtable->name)) {
return g_all_of_the_lb_policies[i];
}
}
return NULL;
}
grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name,
grpc_lb_policy_args *args) {
grpc_lb_policy_factory *factory = lookup_factory(name);
grpc_lb_policy *lb_policy =
grpc_lb_policy_factory_create_lb_policy(exec_ctx, factory, args);
return lb_policy;
}
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