Mercurial > hg > syntilista
view src/runguard.h @ 260:2552756f2876
Update Qt5 win32 cross-build instructions.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 24 Dec 2019 05:15:09 +0200 |
parents | 37d5f4329449 |
children |
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// // Taken and modified from https://stackoverflow.com/questions/5006547/qt-best-practice-for-a-single-instance-app-protection // #ifndef RUNGUARD_H #define RUNGUARD_H #include <QObject> #include <QSharedMemory> #include <QSystemSemaphore> class RunGuard { public: RunGuard(const QString &key); ~RunGuard(); bool isAnotherRunning(); bool tryToRun(); void release(); private: const QString key; const QString memLockKey; const QString sharedmemKey; QSharedMemory sharedMem; QSystemSemaphore memLock; Q_DISABLE_COPY(RunGuard) }; #endif // RUNGUARD_H