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Source at commit 1322 created 9 years 5 months ago.
By meklort, Add doxygen to utils folder
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Nokia Corporation (qt-info@nokia.com)
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6** This file is part of the QtCore module of the Qt Toolkit.
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41
42#ifndef QMUTEX_P_H
43#define QMUTEX_P_H
44
45#include "qglobal.h"
46
47#if defined(_OS_UNIX_) || defined(_OS_MAC_)
48#include <pthread.h>
49#elif defined(_OS_WIN32_)
50#include <windows.h>
51#endif
52
53class QAtomicInt
54{
55 public:
56 QAtomicInt(int v=0) : m_value(v) {}
57 bool testAndSet(int expectedValue,int newValue);
58 int fetchAndAdd(int valueToAdd);
59 operator int () const { return m_value; }
60 bool operator==(int value) const { return m_value == value; }
61 bool operator!=(int value) const { return m_value != value; }
62 bool operator!() const { return m_value == 0; }
63
64 private:
65 volatile int m_value;
66};
67
68class QMutexPrivate
69{
70public:
71 QMutexPrivate();
72 ~QMutexPrivate();
73
74 void wait();
75 void wakeUp();
76
77 QAtomicInt contenders;
78
79#if defined(_OS_UNIX_) || defined(_OS_MAC_)
80 volatile bool wakeup;
81 pthread_mutex_t mutex;
82 pthread_cond_t cond;
83#elif defined(_OS_WIN32_)
84 HANDLE event;
85#else
86#error "unsupported platform"
87#endif
88};
89
90#endif // QMUTEX_P_H
91

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