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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.
*
*/
#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
#include "src/core/ext/filters/client_channel/client_channel_factory.h"
#include "src/core/ext/filters/client_channel/resolver.h"
#include "src/core/lib/channel/channel_stack.h"
extern grpc_core::TraceFlag grpc_client_channel_trace;
// Channel arg key for server URI string.
#define GRPC_ARG_SERVER_URI "grpc.server_uri"
/* A client channel is a channel that begins disconnected, and can connect
to some endpoint on demand. If that endpoint disconnects, it will be
connected to again later.
Calls on a disconnected client channel are queued until a connection is
established. */
extern const grpc_channel_filter grpc_client_channel_filter;
grpc_connectivity_state grpc_client_channel_check_connectivity_state(
grpc_exec_ctx* exec_ctx, grpc_channel_element* elem, int try_to_connect);
int grpc_client_channel_num_external_connectivity_watchers(
grpc_channel_element* elem);
void grpc_client_channel_watch_connectivity_state(
grpc_exec_ctx* exec_ctx, grpc_channel_element* elem,
grpc_polling_entity pollent, grpc_connectivity_state* state,
grpc_closure* on_complete, grpc_closure* watcher_timer_init);
/* Debug helper: pull the subchannel call from a call stack element */
grpc_subchannel_call* grpc_client_channel_get_subchannel_call(
grpc_call_element* elem);
#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H */
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