/* * libjingle * Copyright 2004--2005, Google Inc. * * Redistribution and use in source and binary forms, with or without  * modification, are permitted provided that the following conditions are met: * *  1. Redistributions of source code must retain the above copyright notice,  *     this list of conditions and the following disclaimer. *  2. 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. *  3. The name of the author may not be used to endorse or promote products  *     derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 __ASYNCPACKETSOCKET_H__#define __ASYNCPACKETSOCKET_H__#include "asyncsocket.h"namespace cricket {// Provides the ability to receive packets asynchronously.  Sends are not// buffered since it is acceptable to drop packets under high load.class AsyncPacketSocket : public sigslot::has_slots<> {public:  AsyncPacketSocket(AsyncSocket* socket);  virtual ~AsyncPacketSocket();  // Relevant socket methods:  virtual SocketAddress GetLocalAddress() const;  virtual SocketAddress GetRemoteAddress() const;  virtual int Bind(const SocketAddress& addr);  virtual int Connect(const SocketAddress& addr);  virtual int Send(const void *pv, size_t cb);  virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr);  virtual int Close();  virtual int SetOption(Socket::Option opt, int value);  virtual int GetError() const;  virtual void SetError(int error);  // Emitted each time a packet is read.  sigslot::signal4<const char*, size_t, const SocketAddress&, AsyncPacketSocket*> SignalReadPacket;protected:  AsyncSocket* socket_;};} // namespace cricket#endif // __ASYNCPACKETSOCKET_H__