dep/src/zthread/PriorityMutex.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/PriorityMutex.h"
  24 #include "MutexImpl.h"
  25 #include "ThreadOps.h"
  26
  27
  28 namespace ZThread {
  29
  30   class PriorityMutexImpl : public MutexImpl<priority_list, NullBehavior> { };
  31
  32   PriorityMutex::PriorityMutex() {
  33
  34     _impl = new PriorityMutexImpl();
  35
  36   }
  37
  38   PriorityMutex::~PriorityMutex() {
  39
  40     if(_impl != 0)
  41       delete _impl;
  42
  43   }
  44
  45   // P
  46   void PriorityMutex::acquire() {
  47
  48     _impl->acquire();
  49
  50   }
  51
  52
  53   // P
  54   bool PriorityMutex::tryAcquire(unsigned long ms) {
  55
  56     return _impl->tryAcquire(ms);
  57
  58   }
  59
  60   // V
  61   void PriorityMutex::release() {
  62
  63     _impl->release();
  64
  65   }
  66
  67
  68 } // namespace ZThread
  69