| /* |
| * |
| * 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/ext/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; |
| |
| 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 != 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; |
| } |