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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
#include <string.h>
#include "src/core/lib/support/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;
void grpc_lb_policy_registry_init(void) { g_number_of_lb_policies = 0; }
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 != gpr_stricmp(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 == nullptr) return nullptr;
for (i = 0; i < g_number_of_lb_policies; i++) {
if (0 == gpr_stricmp(name, g_all_of_the_lb_policies[i]->vtable->name)) {
return g_all_of_the_lb_policies[i];
}
}
return nullptr;
}
grpc_lb_policy* grpc_lb_policy_create(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(factory, args);
return lb_policy;
}
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