58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
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#ifndef CSTOPWATCH_H
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#define CSTOPWATCH_H
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#include "common.h"
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class CStopwatch {
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public:
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// the default constructor does an implicit reset() or setTrigger().
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// if triggered == false then the clock starts ticking.
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CStopwatch(bool triggered = false);
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~CStopwatch();
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// manipulators
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// set the start time to the current time, returning the time since
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// the last reset. this does not remove the trigger if it's set nor
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// does it start a stopped clock. if the clock is stopped then
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// subsequent reset()'s will return 0.
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double reset();
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// stop and start the stopwatch. while stopped, no time elapses.
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// stop() does not remove the trigger but start() does, even if
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// the clock was already started.
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void stop();
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void start();
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// setTrigger() stops the clock like stop() except there's an
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// implicit start() the next time (non-const) getTime() is called.
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// this is useful when you want the clock to start the first time
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// you check it.
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void setTrigger();
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// return the time since the last reset() (or call reset() and
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// return zero if the trigger is set).
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double getTime();
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operator double();
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// accessors
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// returns true if the watch is stopped
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bool isStopped() const;
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// return the time since the last reset(). these cannot trigger
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// the clock to start so if the trigger is set it's as if it wasn't.
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double getTime() const;
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operator double() const;
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private:
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double getClock() const;
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private:
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double m_mark;
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bool m_triggered;
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bool m_stopped;
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};
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#endif
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