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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QATOMIC_INTEGRITY_H
#define QATOMIC_INTEGRITY_H
#include <INTEGRITY.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
#define qt_pp2addrp(a) reinterpret_cast<Address *>(const_cast<T **>(a))
#define qt_ip2addrp(a) reinterpret_cast<Address *>(const_cast<int *>(a))
#define qt_p2addrp(a) reinterpret_cast<Address *>(a)
#define qt_addr(a) reinterpret_cast<Address>(a)
#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isReferenceCountingNative()
{ return true; }
#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE
inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
{ return true; }
#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isTestAndSetNative()
{ return true; }
#define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE
inline bool QBasicAtomicInt::isTestAndSetWaitFree()
{ return true; }
#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isFetchAndStoreNative()
{ return true; }
#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE
inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
{ return true; }
#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isFetchAndAddNative()
{ return true; }
#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE
inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
{ return true; }
#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
{ return true; }
#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
{ return true; }
#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
{ return true; }
#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
{ return true; }
#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
{ return true; }
#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
{ return true; }
// Reference counting
inline bool QBasicAtomicInt::ref()
{
int old_value;
AtomicModify(qt_ip2addrp(&_q_value), qt_ip2addrp(&old_value), 0, 1U);
return _q_value != 0;
}
inline bool QBasicAtomicInt::deref()
{
int old_value;
AtomicModify(qt_ip2addrp(&_q_value), qt_ip2addrp(&old_value), 0, -1U);
return _q_value != 0;
}
// Test and set for integers
inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
{
return TestAndSet(qt_ip2addrp(&_q_value), expectedValue, newValue) == Success;
}
inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
// Fetch and store for integers
inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
{
int old_value;
do {
old_value = _q_value;
} while (TestAndSet(qt_ip2addrp(&_q_value), old_value, newValue) != Success);
return old_value;
}
inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
{
return fetchAndStoreOrdered(newValue);
}
inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
{
return fetchAndStoreOrdered(newValue);
}
inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
{
return fetchAndStoreOrdered(newValue);
}
// Fetch and add for integers
inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
{
int old_value;
AtomicModify(qt_ip2addrp(&_q_value), qt_ip2addrp(&old_value), 0, valueToAdd);
return old_value;
}
inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
// Test and set for pointers
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
{
return TestAndSet(qt_pp2addrp(&_q_value), qt_addr(expectedValue), qt_addr(newValue)) == Success;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
{
return testAndSetOrdered(expectedValue, newValue);
}
// Fetch and store for pointers
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
{
Address old_value;
do {
old_value = qt_addr(_q_value);
} while (TestAndSet(qt_pp2addrp(&_q_value), old_value, qt_addr(newValue)) != Success);
return reinterpret_cast<T *>(old_value);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
{
return fetchAndStoreOrdered(newValue);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
{
return fetchAndStoreOrdered(newValue);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
{
return fetchAndStoreOrdered(newValue);
}
// Fetch and add for pointers
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
{
Address old_value;
AtomicModify(qt_pp2addrp(&_q_value), &old_value, 0, valueToAdd * sizeof(T));
return reinterpret_cast<T *>(old_value);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
{
return fetchAndAddOrdered(valueToAdd);
}
QT_END_NAMESPACE
QT_END_HEADER
#endif // QATOMIC_INTEGRITY_H