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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_MESSAGE_CHANNEL_FACTORY_H_
#define REMOTING_PROTOCOL_MESSAGE_CHANNEL_FACTORY_H_
#include <memory>
#include <string>
#include "base/functional/callback_forward.h"
namespace remoting::protocol {
class MessagePipe;
class MessageChannelFactory {
public:
typedef base::OnceCallback<void(std::unique_ptr<MessagePipe>)>
ChannelCreatedCallback;
virtual ~MessageChannelFactory() {}
// Creates new channels and calls the |callback| when then new channel is
// created and connected. Callback may be called synchronously, before the
// call returns. If channel creation fails the callback is never called. All
// channels must be destroyed, and CancelChannelCreation() called for any
// pending channels, before the factory is destroyed.
virtual void CreateChannel(const std::string& name,
ChannelCreatedCallback callback) = 0;
// Cancels a pending CreateChannel() operation for the named channel. If the
// channel creation already completed then canceling it has no effect. When
// shutting down this method must be called for each channel pending creation.
virtual void CancelChannelCreation(const std::string& name) = 0;
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_MESSAGE_CHANNEL_FACTORY_H_
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