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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef TimerThread_h___
#define TimerThread_h___
#include "nsWeakReference.h"
#include "nsIEventQueueService.h"
#include "nsIObserver.h"
#include "nsIRunnable.h"
#include "nsIThread.h"
#include "nsTimerImpl.h"
#include "nsVoidArray.h"
#include "prcvar.h"
#include "prinrval.h"
#include "prlock.h"
class TimerThread : public nsSupportsWeakReference,
public nsIRunnable,
public nsIObserver
{
public:
TimerThread();
NS_HIDDEN_(nsresult) InitLocks();
NS_DECL_ISUPPORTS
NS_DECL_NSIRUNNABLE
NS_DECL_NSIOBSERVER
NS_HIDDEN_(nsresult) Init();
NS_HIDDEN_(nsresult) Shutdown();
nsresult AddTimer(nsTimerImpl *aTimer);
nsresult TimerDelayChanged(nsTimerImpl *aTimer);
nsresult RemoveTimer(nsTimerImpl *aTimer);
#define FILTER_DURATION 1e3 /* one second */
#define FILTER_FEEDBACK_MAX 100 /* 1/10th of a second */
void UpdateFilter(PRUint32 aDelay, PRIntervalTime aTimeout,
PRIntervalTime aNow);
// For use by nsTimerImpl::Fire()
nsCOMPtr<nsIEventQueueService> mEventQueueService;
void DoBeforeSleep();
void DoAfterSleep();
private:
~TimerThread();
PRInt32 mInitInProgress;
PRBool mInitialized;
// These two internal helper methods must be called while mLock is held.
// AddTimerInternal returns the position where the timer was added in the
// list, or -1 if it failed.
PRInt32 AddTimerInternal(nsTimerImpl *aTimer);
PRBool RemoveTimerInternal(nsTimerImpl *aTimer);
nsCOMPtr<nsIThread> mThread;
PRLock *mLock;
PRCondVar *mCondVar;
PRPackedBool mShutdown;
PRPackedBool mWaiting;
PRPackedBool mSleeping;
nsVoidArray mTimers;
#define DELAY_LINE_LENGTH_LOG2 5
#define DELAY_LINE_LENGTH_MASK PR_BITMASK(DELAY_LINE_LENGTH_LOG2)
#define DELAY_LINE_LENGTH PR_BIT(DELAY_LINE_LENGTH_LOG2)
PRInt32 mDelayLine[DELAY_LINE_LENGTH];
PRUint32 mDelayLineCounter;
PRUint32 mMinTimerPeriod; // milliseconds
PRInt32 mTimeoutAdjustment;
};
#endif /* TimerThread_h___ */
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