Mercurial > hg > syntilista
view src/runguard.h @ 228:37d5f4329449
Implement single running instance check to prevent problems with the SQLite database.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 20 Mar 2018 13:45:21 +0200 |
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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