anyrtpproxy/callIdQueue.cpp

   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 #include "callIdQueue.h"
  32
  33 CallIdQueue* CallIdQueue::inst = NULL;
  34 Mutex CallIdQueue::instMutex;
  35 CallIdQueue& gCallIdQueue = CallIdQueue::instance();
  36
  37 CallIdQueue& CallIdQueue::instance()
  38 {
  39   Lock lock(instMutex);
  40   static instanceCleaner c;
  41   if(!inst)
  42     inst = new CallIdQueue();
  43
  44   return *inst;
  45 }
  46
  47 CallIdQueue::CallIdQueue()
  48 {
  49 }
  50
  51 CallIdQueue::~CallIdQueue()
  52 {
  53   while(!callids_.empty())
  54     pop();
  55 }
  56
  57 std::string& CallIdQueue::front()
  58 {
  59   sem_.down();
  60   Lock lock(mutex_);
  61   return callids_.front();
  62 }
  63
  64 void CallIdQueue::push(std::string c)
  65 {
  66   Lock lock(mutex_);
  67   callids_.push(c);
  68   sem_.up();
  69 }
  70
  71 void CallIdQueue::pop()
  72 {
  73   Lock lock(mutex_);
  74   callids_.pop();
  75 }
  76