AliveGuard.h

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#ifndef ALIVE_GUARD_H
#define ALIVE_GUARD_H

class AliveGuard {
public:
    AliveGuard(): m_bAlive(true) {
    }
    
    bool UpdateSerialPortState(bool a_bAlive) {
        bool l_bStateChanged = (m_bAlive != a_bAlive);
        m_bAlive = a_bAlive;
        return l_bStateChanged;
    }

    bool IsAlive() const { return m_bAlive; }

private:
    // Members
    bool m_bAlive; 
};

#endif // ALIVE_GUARD_H