From ab7b849c41a5cfafc1b1d7476eab224c349349ec Mon Sep 17 00:00:00 2001 From: Morten Johan Sorvig Date: Fri, 13 Jan 2012 08:55:43 +0100 Subject: Add atomic implementation for Native Client. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Uses gcc compiler intrinsics, similar to avr32. Change-Id: I10cc2bd3cad67ee002386bab1ea764a4ff5ce727 Reviewed-by: Morten Johan Sørvig --- src/corelib/arch/qatomic_nacl.h | 252 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 src/corelib/arch/qatomic_nacl.h (limited to 'src/corelib/arch/qatomic_nacl.h') diff --git a/src/corelib/arch/qatomic_nacl.h b/src/corelib/arch/qatomic_nacl.h new file mode 100644 index 0000000000..ad5ae676eb --- /dev/null +++ b/src/corelib/arch/qatomic_nacl.h @@ -0,0 +1,252 @@ +/**************************************************************************** + ** + ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). + ** All rights reserved. + ** Contact: Nokia Corporation (qt-info@nokia.com) + ** + ** This file is part of the QtCore module of the Qt Toolkit. + ** + ** $QT_BEGIN_LICENSE:LGPL$ + ** GNU Lesser General Public License Usage + ** This file may be used under the terms of the GNU Lesser General Public + ** License version 2.1 as published by the Free Software Foundation and + ** appearing in the file LICENSE.LGPL included in the packaging of this + ** file. Please review the following information to ensure the GNU Lesser + ** General Public License version 2.1 requirements will be met: + ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. + ** + ** In addition, as a special exception, Nokia gives you certain additional + ** rights. These rights are described in the Nokia Qt 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. + ** + ** Other Usage + ** Alternatively, this file may be used in accordance with the terms and + ** conditions contained in a signed written agreement between you and Nokia. + ** + ** + ** + ** + ** + ** $QT_END_LICENSE$ + ** + ****************************************************************************/ + +#ifndef QATOMIC_NACL_H +#define QATOMIC_NACL_H + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isReferenceCountingNative() +{ return true; } +inline bool QBasicAtomicInt::isReferenceCountingWaitFree() +{ return false; } + +#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isTestAndSetNative() +{ return true; } +inline bool QBasicAtomicInt::isTestAndSetWaitFree() +{ return false; } + +#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE +#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE + +inline bool QBasicAtomicInt::isFetchAndStoreNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndStoreWaitFree() +{ return true; } + +#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE + +inline bool QBasicAtomicInt::isFetchAndAddNative() +{ return true; } +inline bool QBasicAtomicInt::isFetchAndAddWaitFree() +{ return false; } + +#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetNative() +{ return true; } +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetWaitFree() +{ return false; } + +#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE +#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreNative() +{ return true; } +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreWaitFree() +{ return true; } + +#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddNative() +{ return true; } +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddWaitFree() +{ return false; } + +inline bool QBasicAtomicInt::ref() +{ + return __sync_add_and_fetch(&_q_value, 1); +} + +inline bool QBasicAtomicInt::deref() +{ + return __sync_sub_and_fetch(&_q_value, 1); +} + +inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + return __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue); +} + +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); +} + +inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue) +{ + return __sync_lock_test_and_set(&_q_value, newValue); +} + +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); +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + return __sync_fetch_and_add(&_q_value, valueToAdd); +} + +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); +} + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetOrdered(T *expectedValue, T *newValue) +{ + return __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue); +} + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelaxed(T *expectedValue, T *newValue) +{ + return testAndSetOrdered(expectedValue, newValue); +} + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetAcquire(T *expectedValue, T *newValue) +{ + return testAndSetOrdered(expectedValue, newValue); +} + +template +Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelease(T *expectedValue, T *newValue) +{ + return testAndSetOrdered(expectedValue, newValue); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreOrdered(T *newValue) +{ + return __sync_lock_test_and_set(&_q_value, newValue); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelaxed(T *newValue) +{ + return fetchAndStoreOrdered(newValue); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreAcquire(T *newValue) +{ + return fetchAndStoreOrdered(newValue); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelease(T *newValue) +{ + return fetchAndStoreOrdered(newValue); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + return __sync_fetch_and_add(&_q_value, valueToAdd * sizeof(T)); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelaxed(qptrdiff valueToAdd) +{ + return fetchAndAddOrdered(valueToAdd); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddAcquire(qptrdiff valueToAdd) +{ + return fetchAndAddOrdered(valueToAdd); +} + +template +Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelease(qptrdiff valueToAdd) +{ + return fetchAndAddOrdered(valueToAdd); +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QATOMIC_NACL_H -- cgit v1.2.3