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38 lines
819 B
38 lines
819 B
/**************************************************************************** |
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* |
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* (c) 2009-2020 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org> |
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* |
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* QGroundControl is licensed according to the terms in the file |
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* COPYING.md in the root of the source code directory. |
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* |
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****************************************************************************/ |
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#ifndef RunGuard_H |
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#define RunGuard_H |
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#include <QObject> |
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#include <QSharedMemory> |
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#include <QSystemSemaphore> |
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class RunGuard |
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{ |
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public: |
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RunGuard( const QString& key ); |
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~RunGuard(); |
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bool isAnotherRunning(); |
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bool tryToRun(); |
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void release(); |
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private: |
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const QString key; |
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const QString memLockKey; |
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const QString sharedmemKey; |
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QSharedMemory sharedMem; |
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QSystemSemaphore memLock; |
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Q_DISABLE_COPY( RunGuard ) |
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}; |
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#endif
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