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85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef TimerThread_h___
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#define TimerThread_h___
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#include "nsIObserver.h"
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#include "nsIRunnable.h"
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#include "nsIThread.h"
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#include "nsTimerImpl.h"
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#include "nsTArray.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Monitor.h"
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#include "mozilla/TimeStamp.h"
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class TimerThread MOZ_FINAL : public nsIRunnable,
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public nsIObserver
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{
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public:
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typedef mozilla::Monitor Monitor;
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typedef mozilla::TimeStamp TimeStamp;
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typedef mozilla::TimeDuration TimeDuration;
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TimerThread();
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NS_HIDDEN_(nsresult) InitLocks();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIRUNNABLE
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NS_DECL_NSIOBSERVER
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NS_HIDDEN_(nsresult) Init();
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NS_HIDDEN_(nsresult) Shutdown();
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nsresult AddTimer(nsTimerImpl *aTimer);
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nsresult TimerDelayChanged(nsTimerImpl *aTimer);
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nsresult RemoveTimer(nsTimerImpl *aTimer);
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#define FILTER_DURATION 1e3 /* one second */
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#define FILTER_FEEDBACK_MAX 100 /* 1/10th of a second */
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void UpdateFilter(uint32_t aDelay, TimeStamp aTimeout,
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TimeStamp aNow);
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void DoBeforeSleep();
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void DoAfterSleep();
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private:
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~TimerThread();
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int32_t mInitInProgress;
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bool mInitialized;
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// These two internal helper methods must be called while mLock is held.
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// AddTimerInternal returns the position where the timer was added in the
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// list, or -1 if it failed.
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int32_t AddTimerInternal(nsTimerImpl *aTimer);
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bool RemoveTimerInternal(nsTimerImpl *aTimer);
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void ReleaseTimerInternal(nsTimerImpl *aTimer);
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nsCOMPtr<nsIThread> mThread;
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Monitor mMonitor;
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bool mShutdown;
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bool mWaiting;
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bool mSleeping;
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nsTArray<nsTimerImpl*> mTimers;
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#define DELAY_LINE_LENGTH_LOG2 5
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#define DELAY_LINE_LENGTH_MASK ((1u << DELAY_LINE_LENGTH_LOG2) - 1)
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#define DELAY_LINE_LENGTH (1u << DELAY_LINE_LENGTH_LOG2)
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int32_t mDelayLine[DELAY_LINE_LENGTH]; // milliseconds
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uint32_t mDelayLineCounter;
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uint32_t mMinTimerPeriod; // milliseconds
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TimeDuration mTimeoutAdjustment;
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};
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#endif /* TimerThread_h___ */
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