76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
/* timer.h */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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/**
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* @author mrk
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*/
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#ifndef TIMER_H
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#define TIMER_H
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#include <memory>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include <pv/pvType.h>
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#include <pv/thread.h>
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#include <pv/timeStamp.h>
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#include <pv/event.h>
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#include <pv/lock.h>
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#include <pv/sharedPtr.h>
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namespace epics { namespace pvData {
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class TimerCallback;
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class Timer;
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typedef std::tr1::shared_ptr<TimerCallback> TimerCallbackPtr;
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typedef std::tr1::shared_ptr<Timer> TimerPtr;
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class TimerCallback {
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public:
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POINTER_DEFINITIONS(TimerCallback);
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TimerCallback();
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virtual ~TimerCallback(){}
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virtual void callback() = 0;
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virtual void timerStopped() = 0;
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private:
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TimerCallbackPtr next;
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TimeStamp timeToRun;
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double period;
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bool onList;
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friend class Timer;
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};
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class Timer : public Runnable {
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public:
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POINTER_DEFINITIONS(Timer);
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Timer(String threadName, ThreadPriority priority);
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virtual ~Timer();
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virtual void run();
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void scheduleAfterDelay(
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TimerCallbackPtr const &timerCallback,
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double delay);
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void schedulePeriodic(
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TimerCallbackPtr const &timerCallback,
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double delay,
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double period);
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void cancel(TimerCallbackPtr const &timerCallback);
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bool isScheduled(TimerCallbackPtr const &timerCallback);
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void toString(StringBuilder builder);
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private:
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void addElement(TimerCallbackPtr const &timerCallback);
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TimerCallbackPtr head;
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Mutex mutex;
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Event waitForWork;
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Event waitForDone;
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bool alive;
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Thread thread;
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};
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}}
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#endif /* TIMER_H */
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