52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Timer - Platform independent interface for a Timer class
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//
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#ifndef WVCDM_CORE_TIMER_H_
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#define WVCDM_CORE_TIMER_H_
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#include "wv_cdm_types.h"
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namespace wvcdm {
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// Timer Handler class.
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//
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// Derive from this class if you wish to receive events when the timer
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// expires. Provide the handler when setting up a new Timer.
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class TimerHandler {
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public:
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TimerHandler() {};
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virtual ~TimerHandler() {};
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virtual void OnTimerEvent() = 0;
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};
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// Timer class. The implementation is platform dependent.
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//
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// This class provides a simple recurring timer API. The class receiving
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// timer expiry events should derive from TimerHandler.
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// Specify the receiver class and the periodicty of timer events when
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// the timer is initiated by calling Start.
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class Timer {
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public:
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class Impl;
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Timer();
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~Timer();
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bool Start(TimerHandler *handler, uint32_t time_in_secs);
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void Stop();
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bool IsRunning();
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private:
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Impl *impl_;
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CORE_DISALLOW_COPY_AND_ASSIGN(Timer);
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};
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}; // namespace wvcdm
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#endif // WVCDM_CORE_TIMER_H_
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