109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2002 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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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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//! A timer class
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/*!
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This class measures time intervals. All time interval measurement
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should use this class.
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*/
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class CStopwatch {
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public:
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/*!
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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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*/
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CStopwatch(bool triggered = false);
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~CStopwatch();
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//! @name manipulators
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//@{
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//! Reset the timer to zero
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/*!
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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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*/
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double reset();
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//! Stop the timer
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/*!
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Stop the stopwatch. The time interval while stopped is not
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counted by the stopwatch. stop() does not remove the trigger.
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Has no effect if already stopped.
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*/
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void stop();
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//! Start the timer
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/*!
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Start the stopwatch. start() removes the trigger, even if the
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stopwatch was already started.
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*/
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void start();
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//! Stop the timer and set the trigger
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/*!
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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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*/
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void setTrigger();
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//! Get elapsed time
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/*!
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Returns the time since the last reset() (or calls reset() and
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returns zero if the trigger is set).
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*/
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double getTime();
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//! Same as getTime()
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operator double();
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//@}
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//! @name accessors
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//@{
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//! Check if timer is stopped
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/*!
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Returns true if the stopwatch is stopped.
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*/
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bool isStopped() const;
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// return the time since the last reset().
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//! Get elapsed time
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/*!
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Returns the time since the last reset(). This cannot trigger the
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stopwatch to start and will not clear the trigger.
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*/
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double getTime() const;
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//! Same as getTime() const
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operator double() const;
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//@}
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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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