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diff --git a/include/grpc++/channel_interface.h b/include/grpc++/channel_interface.h
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-/*
- *
- * 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.
- *
- */
-
-#ifndef GRPCXX_CHANNEL_INTERFACE_H
-#define GRPCXX_CHANNEL_INTERFACE_H
-
-#include <memory>
-
-#include <grpc/grpc.h>
-#include <grpc++/status.h>
-#include <grpc++/impl/call.h>
-
-struct grpc_call;
-
-namespace grpc {
-class Call;
-class CallOpBuffer;
-class ClientContext;
-class CompletionQueue;
-class RpcMethod;
-
-class ChannelInterface : public CallHook,
- public std::enable_shared_from_this<ChannelInterface> {
- public:
- virtual ~ChannelInterface() {}
-
- virtual void* RegisterMethod(const char* method_name) = 0;
- virtual Call CreateCall(const RpcMethod& method, ClientContext* context,
- CompletionQueue* cq) = 0;
-
- // Get the current channel state. If the channel is in IDLE and try_to_connect
- // is set to true, try to connect.
- virtual grpc_connectivity_state GetState(bool try_to_connect) = 0;
-
- // Return the tag on cq when the channel state is changed or deadline expires.
- // GetState needs to called to get the current state.
- template <typename T>
- void NotifyOnStateChange(grpc_connectivity_state last_observed, T deadline,
- CompletionQueue* cq, void* tag) {
- TimePoint<T> deadline_tp(deadline);
- NotifyOnStateChangeImpl(last_observed, deadline_tp.raw_time(), cq, tag);
- }
-
- // Blocking wait for channel state change or deadline expiration.
- // GetState needs to called to get the current state.
- template <typename T>
- bool WaitForStateChange(grpc_connectivity_state last_observed, T deadline) {
- TimePoint<T> deadline_tp(deadline);
- return WaitForStateChangeImpl(last_observed, deadline_tp.raw_time());
- }
-
- private:
- virtual void NotifyOnStateChangeImpl(grpc_connectivity_state last_observed,
- gpr_timespec deadline,
- CompletionQueue* cq, void* tag) = 0;
- virtual bool WaitForStateChangeImpl(grpc_connectivity_state last_observed,
- gpr_timespec deadline) = 0;
-};
-
-} // namespace grpc
-
-#endif // GRPCXX_CHANNEL_INTERFACE_H