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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_MESSAGE_PIPE_H_
#define REMOTING_PROTOCOL_MESSAGE_PIPE_H_
#include "base/callback_forward.h"
#include "base/memory/scoped_ptr.h"
namespace google {
namespace protobuf {
class MessageLite;
} // namespace protobuf
} // namespace google
namespace remoting {
class CompoundBuffer;
namespace protocol {
// Represents a bi-directional pipe that allows to send and receive messages.
class MessagePipe {
public:
typedef base::Callback<void(scoped_ptr<CompoundBuffer> message)>
MessageReceivedCallback;
virtual ~MessagePipe() {}
// Starts receiving incoming messages and calls |callback| for each message.
virtual void StartReceiving(const MessageReceivedCallback& callback) = 0;
// Sends a message. |done| is called when the message has been sent to the
// client, but it doesn't mean that the client has received it. |done| is
// never called if the message is never sent (e.g. if the pipe is destroyed
// before the message is sent).
virtual void Send(google::protobuf::MessageLite* message,
const base::Closure& done) = 0;
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_MESSAGE_PIPE_H_
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