dep/src/zthread/Mutex.cxx

   1 /*
   2  * Copyright (c) 2005, Eric Crahen
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is furnished
   9  * to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in all
  12  * copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  */
  22
  23 #include "zthread/Mutex.h"
  24 #include "MutexImpl.h"
  25
  26 namespace ZThread {
  27
  28   class FifoMutexImpl : public MutexImpl<fifo_list, NullBehavior> { };
  29
  30
  31   Mutex::Mutex() {
  32
  33     _impl = new FifoMutexImpl();
  34
  35   }
  36
  37   Mutex::~Mutex() {
  38
  39     if(_impl != 0)
  40       delete _impl;
  41   }
  42
  43   // P
  44   void Mutex::acquire() {
  45
  46     _impl->acquire();
  47
  48   }
  49
  50
  51   // P
  52   bool Mutex::tryAcquire(unsigned long ms) {
  53
  54     return _impl->tryAcquire(ms);
  55
  56   }
  57
  58   // V
  59   void Mutex::release() {
  60
  61     _impl->release();
  62
  63   }
  64
  65
  66
  67 } // namespace ZThread
  68