socketaddresspair.h

由GOOGLE的JINGLE项目中移植的网络库

/*
 * 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, 
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 */

#ifndef __SOCKETADDRESSPAIR_H__
#define __SOCKETADDRESSPAIR_H__

#include "socketaddress.h"

namespace cricket {

// Records a pair (source,destination) of socket addresses.  The two addresses
// identify a connection between two machines.  (For UDP, this "connection" is
// not maintained explicitly in a socket.)
class SocketAddressPair {
public:
  SocketAddressPair() {}
  SocketAddressPair(const SocketAddress& srs, const SocketAddress& dest);

  const SocketAddress& source() const { return src_; }
  const SocketAddress& destination() const { return dest_; }

  bool operator ==(const SocketAddressPair& r) const;
  bool operator <(const SocketAddressPair& r) const;

  size_t Hash() const;

private:
  SocketAddress src_;
  SocketAddress dest_;
};

} // namespace cricket

#endif // __SOCKETADDRESSPAIR_H__