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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
commit | 7d523fac5a54f8e695e56f4877fa852608465bc7 (patch) | |
tree | f74237f64a396d91997032df9bdf674492529c94 /main/dependencies/qt3/src/kernel/qlock_p.h | |
parent | 37e3f157c7d76f13de807fa66e36df209e1005fb (diff) | |
download | tde-7d523fac5a54f8e695e56f4877fa852608465bc7.tar.gz tde-7d523fac5a54f8e695e56f4877fa852608465bc7.zip |
Add Qt3 development HEAD version
Diffstat (limited to 'main/dependencies/qt3/src/kernel/qlock_p.h')
-rw-r--r-- | main/dependencies/qt3/src/kernel/qlock_p.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/main/dependencies/qt3/src/kernel/qlock_p.h b/main/dependencies/qt3/src/kernel/qlock_p.h new file mode 100644 index 000000000..de07ba4a9 --- /dev/null +++ b/main/dependencies/qt3/src/kernel/qlock_p.h @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Definition of QLock class. This manages interprocess locking +** +** Created : 20000406 +** +** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the Qt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free Qt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with +** the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#ifndef QLOCK_P_H +#define QLOCK_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. This header file may +// change from version to version without notice, or even be +// removed. +// +// We mean it. +// +// + +#ifndef QT_H +#include "qstring.h" +#endif // QT_H + +class QLockData; + +class QLock +{ +public: + QLock( const QString &filename, char id, bool create = FALSE ); + ~QLock(); + + enum Type { Read, Write }; + + bool isValid() const; + void lock( Type type ); + void unlock(); + bool locked() const; + +private: + Type type; + QLockData *data; +}; + + +// Nice class for ensuring the lock is released. +// Just create one on the stack and the lock is automatically released +// when QLockHolder is destructed. +class QLockHolder +{ +public: + QLockHolder( QLock *l, QLock::Type type ) : qlock(l) { + qlock->lock( type ); + } + ~QLockHolder() { if ( locked() ) qlock->unlock(); } + + void lock( QLock::Type type ) { qlock->lock( type ); } + void unlock() { qlock->unlock(); } + bool locked() const { return qlock->locked(); } + +private: + QLock *qlock; +}; + +#endif + |