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Diffstat (limited to 'src/corelib/arch/qatomic_gcc.h')
-rw-r--r-- | src/corelib/arch/qatomic_gcc.h | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/src/corelib/arch/qatomic_gcc.h b/src/corelib/arch/qatomic_gcc.h deleted file mode 100644 index b671ac48db..0000000000 --- a/src/corelib/arch/qatomic_gcc.h +++ /dev/null @@ -1,145 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Thiago Macieira <thiago@kde.org> -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL21$ -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QATOMIC_GCC_H -#define QATOMIC_GCC_H - -#include <QtCore/qgenericatomic.h> - -QT_BEGIN_NAMESPACE - -#if 0 -// silence syncqt warnings -QT_END_NAMESPACE -#pragma qt_sync_skip_header_check -#pragma qt_sync_stop_processing -#endif - -#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE - -#define Q_ATOMIC_INT32_IS_SUPPORTED -#define Q_ATOMIC_INT32_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT32_TEST_AND_SET_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT32_FETCH_AND_STORE_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_INT32_FETCH_AND_ADD_IS_SOMETIMES_NATIVE - -#define Q_ATOMIC_POINTER_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE -#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE - -#if QT_POINTER_SIZE == 8 -# define Q_ATOMIC_INT64_IS_SUPPORTED -# define Q_ATOMIC_INT64_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE -# define Q_ATOMIC_INT64_TEST_AND_SET_IS_SOMETIMES_NATIVE -# define Q_ATOMIC_INT64_FETCH_AND_STORE_IS_SOMETIMES_NATIVE -# define Q_ATOMIC_INT64_FETCH_AND_ADD_IS_SOMETIMES_NATIVE -template<> struct QAtomicOpsSupport<8> { enum { IsSupported = 1 }; }; -#endif - -template <typename X> struct QAtomicOps: QGenericAtomicOps<QAtomicOps<X> > -{ - // The GCC intrinsics all have fully-ordered memory semantics, so we define - // only the xxxRelaxed functions. The exception is __sync_lock_and_test, - // which has acquire semantics, so we need to define the Release and - // Ordered versions too. - - typedef X Type; - -#ifndef __ia64__ - template <typename T> - static T loadAcquire(const T &_q_value) Q_DECL_NOTHROW - { - T tmp = _q_value; - __sync_synchronize(); - return tmp; - } - - template <typename T> - static void storeRelease(T &_q_value, T newValue) Q_DECL_NOTHROW - { - __sync_synchronize(); - _q_value = newValue; - } -#endif - - static Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return false; } - static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; } - template <typename T> - static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW - { - return __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue); - } - - template <typename T> - static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW - { - bool tmp = __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue); - if (tmp) - *currentValue = expectedValue; - else - *currentValue = _q_value; - return tmp; - } - - template <typename T> - static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW - { - return __sync_lock_test_and_set(&_q_value, newValue); - } - - template <typename T> - static T fetchAndStoreRelease(T &_q_value, T newValue) Q_DECL_NOTHROW - { - __sync_synchronize(); - return __sync_lock_test_and_set(&_q_value, newValue); - } - - template <typename T> - static T fetchAndStoreOrdered(T &_q_value, T newValue) Q_DECL_NOTHROW - { - return fetchAndStoreRelease(_q_value, newValue); - } - - template <typename T> static - T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW - { - return __sync_fetch_and_add(&_q_value, valueToAdd * QAtomicAdditiveType<T>::AddScale); - } -}; - -QT_END_NAMESPACE -#endif // QATOMIC_GCC_H |