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38 lines
688 B
C++
38 lines
688 B
C++
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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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#include <QDebug>
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/**
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* @brief The RunGuard class - The application single instance (via shared memory)
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*/
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class RunGuard
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{
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public:
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static RunGuard &instance(const QString& key = QString());
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~RunGuard();
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void activate();
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bool isAnotherRunning() const;
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bool tryToRun();
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void release();
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private:
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RunGuard(const QString& key);
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Q_DISABLE_COPY( RunGuard )
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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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mutable QSharedMemory sharedMem;
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mutable QSystemSemaphore memLock;
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};
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#endif // RUNGUARD_H
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