anyrtpproxy/callIdQueue.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #ifndef __CALLID_QUEUE_H__
  32 #define __CALLID_QUEUE_H__
  33
  34 #include <queue>
  35 #include <string>
  36
  37 #include "../threadUtils.hpp"
  38
  39 class CallIdQueue
  40 {
  41 public:
  42   static CallIdQueue& instance();
  43
  44   std::string& front();
  45   void push(std::string c);
  46   void pop();
  47
  48 private:
  49   CallIdQueue();
  50   ~CallIdQueue();
  51
  52   void operator=(const CallIdQueue &src);
  53   CallIdQueue(const CallIdQueue &src);
  54
  55   static CallIdQueue* inst;
  56   static ::Mutex instMutex;
  57   class instanceCleaner {
  58     public: ~instanceCleaner() {
  59       if(CallIdQueue::inst != 0)
  60         delete CallIdQueue::inst;
  61     }
  62   };
  63   friend class instanceCleaner;
  64
  65   ::Mutex mutex_;
  66   Semaphore sem_;
  67   std::queue<std::string> callids_;
  68 };
  69
  70 extern CallIdQueue& gCallIdQueue;
  71
  72 #endif