--- /dev/null
+/*
+ *
+ * Copyright 2017 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 <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+
+//
+// grpc_proxy_mapper_list
+//
+
+typedef struct {
+ grpc_proxy_mapper** list;
+ size_t num_mappers;
+} grpc_proxy_mapper_list;
+
+static void grpc_proxy_mapper_list_register(grpc_proxy_mapper_list* list,
+ bool at_start,
+ grpc_proxy_mapper* mapper) {
+ list->list = static_cast<grpc_proxy_mapper**>(gpr_realloc(
+ list->list, (list->num_mappers + 1) * sizeof(grpc_proxy_mapper*)));
+ if (at_start) {
+ memmove(list->list + 1, list->list,
+ sizeof(grpc_proxy_mapper*) * list->num_mappers);
+ list->list[0] = mapper;
+ } else {
+ list->list[list->num_mappers] = mapper;
+ }
+ ++list->num_mappers;
+}
+
+static bool grpc_proxy_mapper_list_map_name(grpc_proxy_mapper_list* list,
+ const char* server_uri,
+ const grpc_channel_args* args,
+ char** name_to_resolve,
+ grpc_channel_args** new_args) {
+ for (size_t i = 0; i < list->num_mappers; ++i) {
+ if (grpc_proxy_mapper_map_name(list->list[i], server_uri, args,
+ name_to_resolve, new_args)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool grpc_proxy_mapper_list_map_address(
+ grpc_proxy_mapper_list* list, const grpc_resolved_address* address,
+ const grpc_channel_args* args, grpc_resolved_address** new_address,
+ grpc_channel_args** new_args) {
+ for (size_t i = 0; i < list->num_mappers; ++i) {
+ if (grpc_proxy_mapper_map_address(list->list[i], address, args, new_address,
+ new_args)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+static void grpc_proxy_mapper_list_destroy(grpc_proxy_mapper_list* list) {
+ for (size_t i = 0; i < list->num_mappers; ++i) {
+ grpc_proxy_mapper_destroy(list->list[i]);
+ }
+ gpr_free(list->list);
+ // Clean up in case we re-initialze later.
+ // TODO(ctiller): This should ideally live in
+ // grpc_proxy_mapper_registry_init(). However, if we did this there,
+ // then we would do it AFTER we start registering proxy mappers from
+ // third-party plugins, so they'd never show up (and would leak memory).
+ // We probably need some sort of dependency system for plugins to fix
+ // this.
+ memset(list, 0, sizeof(*list));
+}
+
+//
+// plugin
+//
+
+static grpc_proxy_mapper_list g_proxy_mapper_list;
+
+void grpc_proxy_mapper_registry_init() {}
+
+void grpc_proxy_mapper_registry_shutdown() {
+ grpc_proxy_mapper_list_destroy(&g_proxy_mapper_list);
+}
+
+void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper) {
+ grpc_proxy_mapper_list_register(&g_proxy_mapper_list, at_start, mapper);
+}
+
+bool grpc_proxy_mappers_map_name(const char* server_uri,
+ const grpc_channel_args* args,
+ char** name_to_resolve,
+ grpc_channel_args** new_args) {
+ return grpc_proxy_mapper_list_map_name(&g_proxy_mapper_list, server_uri, args,
+ name_to_resolve, new_args);
+}
+bool grpc_proxy_mappers_map_address(const grpc_resolved_address* address,
+ const grpc_channel_args* args,
+ grpc_resolved_address** new_address,
+ grpc_channel_args** new_args) {
+ return grpc_proxy_mapper_list_map_address(&g_proxy_mapper_list, address, args,
+ new_address, new_args);
+}