Long live Qt 4.5!

2 files changed, 76 insertions, 0 deletions

diff --git a/src/corelib/arch/arm/arch.pri b/src/corelib/arch/arm/arch.pri
new file mode 100644
index 0000000..79e4bfc
--- /dev/null
+++ b/src/corelib/arch/arm/arch.pri
@@ -0,0 +1,4 @@
+#
+# ARM architecture
+#
+SOURCES += $$QT_ARCH_CPP/qatomic_arm.cpp
diff --git a/src/corelib/arch/arm/qatomic_arm.cpp b/src/corelib/arch/arm/qatomic_arm.cpp
new file mode 100644
index 0000000..901c181
--- /dev/null
+++ b/src/corelib/arch/arm/qatomic_arm.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qglobal.h>
+
+#include <unistd.h>
+#ifdef _POSIX_PRIORITY_SCHEDULING
+# include <sched.h>
+#endif
+#include <time.h>
+
+QT_BEGIN_NAMESPACE
+
+QT_USE_NAMESPACE
+
+Q_CORE_EXPORT char q_atomic_lock = 0;
+
+Q_CORE_EXPORT void qt_atomic_yield(int *count)
+{
+#ifdef _POSIX_PRIORITY_SCHEDULING
+    if((*count)++ < 50) {
+        sched_yield();
+    } else
+#endif
+    {
+        struct timespec tm;
+        tm.tv_sec = 0;
+        tm.tv_nsec = 2000001;
+        nanosleep(&tm, NULL);
+        *count = 0;
+    }
+}
+
+QT_END_NAMESPACE