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event_trigger_generic.h

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#ifndef header_event_trigger_generic
#define header_event_trigger_generic

class CL_EventListener;

class CL_EventTrigger_Generic
{
// Construction:
public:
        CL_EventTrigger_Generic();

        virtual ~CL_EventTrigger_Generic();

// Attributes:
public:
        virtual bool get_flag() const=0;

// Operations:
public:
        virtual void reset() const=0;
        // Reset trigger flag.

        virtual void set_flag()=0;
        // Raise trigger flag.

        virtual bool wait(int timeout = -1) const=0;
        // Wait until one of the event triggers. The timeout is in milliseconds.
        // Returns true if the event triggered, false if it timed out.

        void add_ref();
        // Increase reference count.

        void release_ref();
        // Decrease reference count.

// Implementation:
private:
        int ref_count;
};

#endif

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