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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "qfactorycacheregistration_p.h"
#include <QtCore/QMutex>
QT_BEGIN_NAMESPACE
#ifdef QT_USE_FACTORY_CACHE_REGISTRATION
static QBasicMutex registrationMutex;
static detail::QWinRTFactoryCacheRegistration *firstElement;
detail::QWinRTFactoryCacheRegistration::QWinRTFactoryCacheRegistration(
QFunctionPointer clearFunction)
: m_clearFunction(clearFunction)
{
QMutexLocker lock(®istrationMutex);
// forward pointers
m_next = std::exchange(firstElement, this);
// backward pointers
m_prevNext = &firstElement;
if (m_next)
m_next->m_prevNext = &m_next;
}
detail::QWinRTFactoryCacheRegistration::~QWinRTFactoryCacheRegistration()
{
QMutexLocker lock(®istrationMutex);
*m_prevNext = m_next;
if (m_next)
m_next->m_prevNext = m_prevNext;
}
void detail::QWinRTFactoryCacheRegistration::clearAllCaches()
{
QMutexLocker lock(®istrationMutex);
detail::QWinRTFactoryCacheRegistration *element;
for (element = firstElement; element != nullptr; element = element->m_next) {
element->m_clearFunction();
}
}
#endif
QT_END_NAMESPACE
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