diff options
Diffstat (limited to 'src/corelib/arch/sparc/qatomic_sparc.cpp')
-rw-r--r-- | src/corelib/arch/sparc/qatomic_sparc.cpp | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/src/corelib/arch/sparc/qatomic_sparc.cpp b/src/corelib/arch/sparc/qatomic_sparc.cpp deleted file mode 100644 index eb16f8bb5f..0000000000 --- a/src/corelib/arch/sparc/qatomic_sparc.cpp +++ /dev/null @@ -1,84 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2015 The Qt Company Ltd. -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#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" |