root/trunk/dep/src/zthread/Semaphore.cxx @ 164

Revision 2, 2.2 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 "zthread/Semaphore.h"
24#include "SemaphoreImpl.h"
25
26namespace ZThread {
27
28  /**
29   * Create a new semaphore of a given size with a given count
30   *
31   * @param initialCount initial count to assign this semaphore
32   * @param maxCount maximum size of the semaphore count
33   */
34  Semaphore::Semaphore(int count, unsigned int maxCount) {
35 
36    _impl = new FifoSemaphoreImpl(count, maxCount, true);
37 
38  }
39
40  Semaphore::~Semaphore() {
41
42    if(_impl != 0)
43      delete _impl;
44
45  }
46
47  void Semaphore::wait() {
48
49    _impl->acquire();
50
51  }
52
53
54  bool Semaphore::tryWait(unsigned long ms) {
55
56    return _impl->tryAcquire(ms);
57
58  }
59
60  void Semaphore::post() {
61
62    _impl->release();
63
64  }
65
66  int Semaphore::count() {
67
68    return _impl->count();
69
70  }
71
72  ///////////////////////////////////////////////////////////////////////////////
73  // Locakable compatibility
74  //
75
76  void Semaphore::acquire() {
77
78    _impl->acquire();
79
80  }
81
82  bool Semaphore::tryAcquire(unsigned long ms) {
83
84    return _impl->tryAcquire(ms);
85
86
87  }
88
89  void Semaphore::release() {
90
91    _impl->release();
92
93  }
94
95} // namespace ZThread
96
97
98
99
100
101
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