diff options
Diffstat (limited to 'src/corelib/arch/sparc/qatomic_sparc.cpp')
-rw-r--r-- | src/corelib/arch/sparc/qatomic_sparc.cpp | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/src/corelib/arch/sparc/qatomic_sparc.cpp b/src/corelib/arch/sparc/qatomic_sparc.cpp deleted file mode 100644 index e481e19739..0000000000 --- a/src/corelib/arch/sparc/qatomic_sparc.cpp +++ /dev/null @@ -1,90 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 https://www.qt.io/terms-conditions. For further -** information use the contact form at https://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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtCore/qatomic.h> - -#include <limits.h> -#include <sched.h> - -extern "C" { - -int q_atomic_trylock_int(volatile int *addr); -int q_atomic_trylock_ptr(volatile void *addr); - -Q_CORE_EXPORT int q_atomic_lock_int(volatile int *addr) -{ - int returnValue = q_atomic_trylock_int(addr); - - if (returnValue == INT_MIN) { - do { - // spin until we think we can succeed - do { - sched_yield(); - returnValue = *addr; - } while (returnValue == INT_MIN); - - // try again - returnValue = q_atomic_trylock_int(addr); - } while (returnValue == INT_MIN); - } - - return returnValue; -} - -Q_CORE_EXPORT int q_atomic_lock_ptr(volatile void *addr) -{ - int returnValue = q_atomic_trylock_ptr(addr); - - if (returnValue == -1) { - do { - // spin until we think we can succeed - do { - sched_yield(); - returnValue = *reinterpret_cast<volatile int *>(addr); - } while (returnValue == -1); - - // try again - returnValue = q_atomic_trylock_ptr(addr); - } while (returnValue == -1); - } - - return returnValue; -} - -} // extern "C" |