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// Copyright 2014 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_DATAGRAM_CHANNEL_FACTORY_H_
#define REMOTING_PROTOCOL_DATAGRAM_CHANNEL_FACTORY_H_
#include <string>
#include "base/callback_forward.h"
namespace remoting {
namespace protocol {
class P2PDatagramSocket;
class DatagramChannelFactory {
public:
typedef base::Callback<void(scoped_ptr<P2PDatagramSocket>)>
ChannelCreatedCallback;
DatagramChannelFactory() {}
// Creates new channels and calls the |callback| when then new channel is
// created and connected. The |callback| is called with nullptr if channel
// setup failed for any reason. Callback may be called synchronously, before
// the call returns. All channels must be destroyed, and
// CancelChannelCreation() called for any pending channels, before the factory
// is destroyed.
virtual void CreateChannel(const std::string& name,
const 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;
protected:
virtual ~DatagramChannelFactory() {}
private:
DISALLOW_COPY_AND_ASSIGN(DatagramChannelFactory);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_DATAGRAM_CHANNEL_FACTORY_H_