root/trunk/dep/src/zthread/PrioritySemaphore.cxx

Revision 2, 2.5 kB (checked in by yumileroy, 17 years ago)

[svn] * Proper SVN structure

Original author: Neo2003
Date: 2008-10-02 16:23:55-05:00
Line 
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 "Debug.h"
24#include "zthread/PrioritySemaphore.h"
25#include "SemaphoreImpl.h"
26
27namespace ZThread {
28
29  class PrioritySemaphoreImpl : public SemaphoreImpl<priority_list> {
30  public:
31
32    PrioritySemaphoreImpl(int count, unsigned int maxCount)
33      : SemaphoreImpl<priority_list>(count, maxCount, true) { }
34
35  };
36
37  /**
38   * Create a new semaphore of a given size with a given count
39   *
40   * @param initialCount initial count to assign this semaphore
41   * @param maxCount maximum size of the semaphore count
42   */
43  PrioritySemaphore::PrioritySemaphore(int count, unsigned int maxCount) {
44 
45    _impl = new PrioritySemaphoreImpl(count, maxCount);
46 
47  }
48
49  PrioritySemaphore::~PrioritySemaphore() {
50
51    if(_impl != 0)
52      delete _impl;
53
54  }
55
56  void PrioritySemaphore::wait() {
57
58    _impl->acquire();
59
60  }
61
62
63  bool PrioritySemaphore::tryWait(unsigned long ms) {
64
65    return _impl->tryAcquire(ms);
66
67  }
68
69  void PrioritySemaphore::post() {
70
71    _impl->release();
72
73  }
74
75  int PrioritySemaphore::count() {
76
77    return _impl->count();
78
79  }
80
81  ///////////////////////////////////////////////////////////////////////////////
82  // Locakable compatibility
83  //
84
85  void PrioritySemaphore::acquire() {
86
87    _impl->acquire();
88
89  }
90
91  bool PrioritySemaphore::tryAcquire(unsigned long ms) {
92
93    return _impl->tryAcquire(ms);
94
95
96  }
97
98  void PrioritySemaphore::release() {
99
100    _impl->release();
101
102  }
103
104} // namespace ZThread
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