/****************************************************************************

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#include <windows.h>

#include "qmutex.h"

#include "qmutex_p.h"

QMutexPrivate::QMutexPrivate()

    : contenders(0)

{

  event = CreateEvent(0, FALSE, FALSE, 0);

  if (!event)

    qWarning("QMutexPrivate::QMutexPrivate: Cannot create event");

}

QMutexPrivate::~QMutexPrivate()

{

  CloseHandle(event);

}

void QMutexPrivate::wait()

{

  WaitForSingleObject(event, INFINITE);

}

void QMutexPrivate::wakeUp()

{

  SetEvent(event);

}

//----------------------------------------------------------------------

class QCriticalSection

{

  public:

    QCriticalSection()  { InitializeCriticalSection(&section); }

    ~QCriticalSection() { DeleteCriticalSection(&section); }

    void lock()         { EnterCriticalSection(&section); }

    void unlock()       { LeaveCriticalSection(&section); }

  private:

    CRITICAL_SECTION section;

};

static QCriticalSection qAtomicCriticalSection;

bool QAtomicInt::testAndSet(int expectedValue,int newValue)

{

  bool returnValue = false;

  qAtomicCriticalSection.lock();

  if (m_value == expectedValue)

  {

    m_value = newValue;

    returnValue = true;

  }

  qAtomicCriticalSection.unlock();

  return returnValue;

}

int QAtomicInt::fetchAndAdd(int valueToAdd)

{

  int returnValue;

  qAtomicCriticalSection.lock();

  returnValue = m_value;

  m_value += valueToAdd;

  qAtomicCriticalSection.unlock();

  return returnValue;

}