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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /src/kernel/qlock_p.h | |
download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'src/kernel/qlock_p.h')
-rw-r--r-- | src/kernel/qlock_p.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/kernel/qlock_p.h b/src/kernel/qlock_p.h new file mode 100644 index 000000000..2d46f7dc0 --- /dev/null +++ b/src/kernel/qlock_p.h @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Definition of TQLock 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 TQt 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 TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing retquirements 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 TQt Commercial licenses may use this file in +** accordance with the TQt 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 TQLOCK_P_H +#define TQLOCK_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the TQt 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 TQLockData; + +class TQLock +{ +public: + TQLock( const TQString &filename, char id, bool create = FALSE ); + ~TQLock(); + + enum Type { Read, Write }; + + bool isValid() const; + void lock( Type type ); + void unlock(); + bool locked() const; + +private: + Type type; + TQLockData *data; +}; + + +// Nice class for ensuring the lock is released. +// Just create one on the stack and the lock is automatically released +// when TQLockHolder is destructed. +class TQLockHolder +{ +public: + TQLockHolder( TQLock *l, TQLock::Type type ) : qlock(l) { + qlock->lock( type ); + } + ~TQLockHolder() { if ( locked() ) qlock->unlock(); } + + void lock( TQLock::Type type ) { qlock->lock( type ); } + void unlock() { qlock->unlock(); } + bool locked() const { return qlock->locked(); } + +private: + TQLock *qlock; +}; + +#endif + |