| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H |
| #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <grpc/impl/codegen/grpc_types.h> |
| |
| #include "src/core/ext/filters/client_channel/subchannel.h" |
| #include "src/core/lib/channel/channel_stack.h" |
| |
| // Channel arg key for client channel factory. |
| #define GRPC_ARG_CLIENT_CHANNEL_FACTORY "grpc.client_channel_factory" |
| |
| typedef struct grpc_client_channel_factory grpc_client_channel_factory; |
| typedef struct grpc_client_channel_factory_vtable |
| grpc_client_channel_factory_vtable; |
| |
| typedef enum { |
| GRPC_CLIENT_CHANNEL_TYPE_REGULAR, /** for the user-level regular calls */ |
| GRPC_CLIENT_CHANNEL_TYPE_LOAD_BALANCING, /** for communication with a load |
| balancing service */ |
| } grpc_client_channel_type; |
| |
| /** Constructor for new configured channels. |
| Creating decorators around this type is encouraged to adapt behavior. */ |
| struct grpc_client_channel_factory { |
| const grpc_client_channel_factory_vtable* vtable; |
| }; |
| |
| struct grpc_client_channel_factory_vtable { |
| void (*ref)(grpc_client_channel_factory* factory); |
| void (*unref)(grpc_client_channel_factory* factory); |
| grpc_subchannel* (*create_subchannel)(grpc_client_channel_factory* factory, |
| const grpc_subchannel_args* args); |
| grpc_channel* (*create_client_channel)(grpc_client_channel_factory* factory, |
| const char* target, |
| grpc_client_channel_type type, |
| const grpc_channel_args* args); |
| }; |
| |
| void grpc_client_channel_factory_ref(grpc_client_channel_factory* factory); |
| void grpc_client_channel_factory_unref(grpc_client_channel_factory* factory); |
| |
| /** Create a new grpc_subchannel */ |
| grpc_subchannel* grpc_client_channel_factory_create_subchannel( |
| grpc_client_channel_factory* factory, const grpc_subchannel_args* args); |
| |
| /** Create a new grpc_channel */ |
| grpc_channel* grpc_client_channel_factory_create_channel( |
| grpc_client_channel_factory* factory, const char* target, |
| grpc_client_channel_type type, const grpc_channel_args* args); |
| |
| grpc_arg grpc_client_channel_factory_create_channel_arg( |
| grpc_client_channel_factory* factory); |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */ |