зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
3.7 KiB
C++
120 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <pavlov@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef TimerThread_h___
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#define TimerThread_h___
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#include "nsIEventQueueService.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 "nsVoidArray.h"
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#include "prcvar.h"
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#include "prinrval.h"
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#include "prlock.h"
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class TimerThread : public nsIRunnable,
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public nsIObserver
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{
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public:
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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(PRUint32 aDelay, PRIntervalTime aTimeout,
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PRIntervalTime aNow);
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// For use by nsTimerImpl::Fire()
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nsCOMPtr<nsIEventQueueService> mEventQueueService;
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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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PRInt32 mInitInProgress;
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PRBool 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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PRInt32 AddTimerInternal(nsTimerImpl *aTimer);
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PRBool RemoveTimerInternal(nsTimerImpl *aTimer);
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nsCOMPtr<nsIThread> mThread;
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PRLock *mLock;
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PRCondVar *mCondVar;
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PRPackedBool mShutdown;
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PRPackedBool mWaiting;
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PRPackedBool mSleeping;
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nsVoidArray mTimers;
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#define DELAY_LINE_LENGTH_LOG2 5
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#define DELAY_LINE_LENGTH_MASK PR_BITMASK(DELAY_LINE_LENGTH_LOG2)
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#define DELAY_LINE_LENGTH PR_BIT(DELAY_LINE_LENGTH_LOG2)
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PRInt32 mDelayLine[DELAY_LINE_LENGTH];
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PRUint32 mDelayLineCounter;
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PRUint32 mMinTimerPeriod; // milliseconds
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PRInt32 mTimeoutAdjustment;
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};
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#endif /* TimerThread_h___ */
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