?? qatomic_sparc.h
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/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtCore module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 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 GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#ifndef SPARC_QATOMIC_H#define SPARC_QATOMIC_H#include <QtCore/qglobal.h>QT_BEGIN_HEADER#if defined(_LP64)extern "C" { Q_CORE_EXPORT int q_atomic_test_and_set_int(volatile int *ptr, int expected, int newval); Q_CORE_EXPORT int q_atomic_test_and_set_acquire_int(volatile int *ptr, int expected, int newval); Q_CORE_EXPORT int q_atomic_test_and_set_release_int(volatile int *ptr, int expected, int newval); Q_CORE_EXPORT int q_atomic_test_and_set_ptr(volatile void *ptr, void *expected, void *newval); Q_CORE_EXPORT int q_atomic_increment(volatile int *ptr); Q_CORE_EXPORT int q_atomic_decrement(volatile int *ptr); Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval); Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, void *newval);}#elseextern "C" { Q_CORE_EXPORT int q_atomic_lock_int(volatile int *addr); Q_CORE_EXPORT int q_atomic_lock_ptr(volatile void *addr); Q_CORE_EXPORT void q_atomic_unlock(volatile void *addr, int value); Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval); Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, void *newval);} // extern "C"inline int q_atomic_test_and_set_int(volatile int *ptr, int expected, int newval){ int val = q_atomic_lock_int(ptr); if (val == expected) { q_atomic_unlock(ptr, newval); return 1; } q_atomic_unlock(ptr, val); return 0;}inline int q_atomic_test_and_set_acquire_int(volatile int *ptr, int expected, int newval){ return q_atomic_test_and_set_int(ptr, expected, newval);}inline int q_atomic_test_and_set_release_int(volatile int *ptr, int expected, int newval){ return q_atomic_test_and_set_int(ptr, expected, newval);}inline int q_atomic_test_and_set_ptr(volatile void *ptr, void *expected, void *newval){ void *val = reinterpret_cast<void *>(q_atomic_lock_ptr(ptr)); if (val == expected) { q_atomic_unlock(ptr, reinterpret_cast<int>(newval)); return 1; } q_atomic_unlock(ptr, reinterpret_cast<int>(val)); return 0;}inline int q_atomic_increment(volatile int *ptr){ const int val = q_atomic_lock_int(ptr); q_atomic_unlock(ptr, val + 1); return val != -1;}inline int q_atomic_decrement(volatile int *ptr){ const int val = q_atomic_lock_int(ptr); q_atomic_unlock(ptr, val - 1); return val != 1;}#endif // !_LP64QT_END_HEADER#endif // SPARC_QATOMIC_H
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