2001-12-16 09:13:17 +03:00
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/* -*- 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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* 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 Netscape Communications
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* Corporation. Portions created by the Initial Developer are
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* Copyright (C) 2001 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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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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#include "nsTimerImpl.h"
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#include "TimerThread.h"
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2002-08-09 08:03:45 +04:00
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#include "nsAutoLock.h"
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2001-12-16 09:13:17 +03:00
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2002-08-09 08:03:45 +04:00
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#include "nsVoidArray.h"
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2002-04-14 04:27:16 +04:00
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2001-12-16 09:13:17 +03:00
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#include "nsIEventQueue.h"
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2002-12-04 03:57:20 +03:00
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static PRInt32 gGenerator = 0;
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static TimerThread* gThread = nsnull;
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static PRBool gFireOnIdle = PR_FALSE;
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static nsTimerManager* gManager = nsnull;
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2002-04-14 04:27:16 +04:00
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2001-12-16 09:13:17 +03:00
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#include "prmem.h"
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#include "prinit.h"
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#ifdef DEBUG_TIMERS
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#include <math.h>
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double nsTimerImpl::sDeltaSumSquared = 0;
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double nsTimerImpl::sDeltaSum = 0;
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2002-03-08 23:11:49 +03:00
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double nsTimerImpl::sDeltaNum = 0;
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2001-12-16 09:13:17 +03:00
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static void
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myNS_MeanAndStdDev(double n, double sumOfValues, double sumOfSquaredValues,
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double *meanResult, double *stdDevResult)
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{
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double mean = 0.0, var = 0.0, stdDev = 0.0;
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if (n > 0.0 && sumOfValues >= 0) {
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mean = sumOfValues / n;
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double temp = (n * sumOfSquaredValues) - (sumOfValues * sumOfValues);
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if (temp < 0.0 || n <= 1)
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var = 0.0;
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else
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var = temp / (n * (n - 1));
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// for some reason, Windows says sqrt(0.0) is "-1.#J" (?!) so do this:
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stdDev = var != 0.0 ? sqrt(var) : 0.0;
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}
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*meanResult = mean;
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*stdDevResult = stdDev;
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}
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#endif
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2002-09-07 09:38:16 +04:00
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NS_IMPL_THREADSAFE_QUERY_INTERFACE2(nsTimerImpl, nsITimer, nsITimerInternal)
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2002-03-08 23:11:49 +03:00
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NS_IMPL_THREADSAFE_ADDREF(nsTimerImpl)
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2001-12-16 09:13:17 +03:00
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2002-03-08 23:11:49 +03:00
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NS_IMETHODIMP_(nsrefcnt) nsTimerImpl::Release(void)
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{
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nsrefcnt count;
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NS_PRECONDITION(0 != mRefCnt, "dup release");
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count = PR_AtomicDecrement((PRInt32 *)&mRefCnt);
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NS_LOG_RELEASE(this, count, "nsTimerImpl");
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if (count == 0) {
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mRefCnt = 1; /* stabilize */
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/* enable this to find non-threadsafe destructors: */
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/* NS_ASSERT_OWNINGTHREAD(nsTimerImpl); */
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NS_DELETEXPCOM(this);
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return 0;
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}
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// If only one reference remains, and mArmed is set, then the ref must be
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// from the TimerThread::mTimers array, so we Cancel this timer to remove
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// the mTimers element, and return 0 if Cancel in fact disarmed the timer.
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//
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// We use an inlined version of nsTimerImpl::Cancel here to check for the
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// NS_ERROR_NOT_AVAILABLE code returned by gThread->RemoveTimer when this
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// timer is not found in the mTimers array -- i.e., when the timer was not
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// in fact armed once we acquired TimerThread::mLock, in spite of mArmed
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// being true here. That can happen if the armed timer is being fired by
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// TimerThread::Run as we race and test mArmed just before it is cleared by
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// the timer thread. If the RemoveTimer call below doesn't find this timer
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// in the mTimers array, then the last ref to this timer is held manually
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// and temporarily by the TimerThread, so we should fall through to the
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// final return and return 1, not 0.
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//
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// The original version of this thread-based timer code kept weak refs from
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// TimerThread::mTimers, removing this timer's weak ref in the destructor,
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// but that leads to double-destructions in the race described above, and
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// adding mArmed doesn't help, because destructors can't be deferred, once
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// begun. But by combining reference-counting and a specialized Release
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// method with "is this timer still in the mTimers array once we acquire
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// the TimerThread's lock" testing, we defer destruction until we're sure
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// that only one thread has its hot little hands on this timer.
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//
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// Note that both approaches preclude a timer creator, and everyone else
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// except the TimerThread who might have a strong ref, from dropping all
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// their strong refs without implicitly canceling the timer. Timers need
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// non-mTimers-element strong refs to stay alive.
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if (count == 1 && mArmed) {
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mCanceled = PR_TRUE;
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if (NS_SUCCEEDED(gThread->RemoveTimer(this)))
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return 0;
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}
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return count;
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}
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2001-12-16 09:13:17 +03:00
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2001-12-16 12:31:39 +03:00
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PR_STATIC_CALLBACK(PRStatus) InitThread(void)
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2001-12-16 09:13:17 +03:00
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{
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gThread = new TimerThread();
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2002-02-18 03:10:55 +03:00
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if (!gThread)
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return PR_FAILURE;
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2001-12-16 09:13:17 +03:00
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2002-02-18 03:10:55 +03:00
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NS_ADDREF(gThread);
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2001-12-16 09:13:17 +03:00
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nsresult rv = gThread->Init();
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2002-02-18 03:10:55 +03:00
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if (NS_FAILED(rv)) {
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NS_RELEASE(gThread);
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return PR_FAILURE;
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}
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2001-12-16 09:13:17 +03:00
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return PR_SUCCESS;
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}
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nsTimerImpl::nsTimerImpl() :
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mClosure(nsnull),
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mCallbackType(CALLBACK_TYPE_UNKNOWN),
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2002-09-13 23:55:02 +04:00
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mIdle(PR_TRUE),
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2001-12-17 09:59:55 +03:00
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mFiring(PR_FALSE),
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2002-03-08 23:11:49 +03:00
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mArmed(PR_FALSE),
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mCanceled(PR_FALSE),
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2002-12-04 03:57:20 +03:00
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mGeneration(0),
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mDelay(0),
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2002-09-13 23:55:02 +04:00
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mTimeout(0)
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2001-12-16 09:13:17 +03:00
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{
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nsIThread::GetCurrent(getter_AddRefs(mCallingThread));
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static PRCallOnceType once;
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PR_CallOnce(&once, InitThread);
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mCallback.c = nsnull;
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#ifdef DEBUG_TIMERS
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mStart = 0;
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mStart2 = 0;
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#endif
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}
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nsTimerImpl::~nsTimerImpl()
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{
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2003-08-06 04:37:43 +04:00
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ReleaseCallback();
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2001-12-16 09:13:17 +03:00
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}
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void nsTimerImpl::Shutdown()
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{
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#ifdef DEBUG_TIMERS
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2002-01-15 04:20:47 +03:00
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if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
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double mean = 0, stddev = 0;
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2002-03-08 23:11:49 +03:00
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myNS_MeanAndStdDev(sDeltaNum, sDeltaSum, sDeltaSumSquared, &mean, &stddev);
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2001-12-16 09:13:17 +03:00
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2002-03-08 23:11:49 +03:00
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PR_LOG(gTimerLog, PR_LOG_DEBUG, ("sDeltaNum = %f, sDeltaSum = %f, sDeltaSumSquared = %f\n", sDeltaNum, sDeltaSum, sDeltaSumSquared));
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2002-01-15 04:20:47 +03:00
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PR_LOG(gTimerLog, PR_LOG_DEBUG, ("mean: %fms, stddev: %fms\n", mean, stddev));
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}
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2001-12-16 09:13:17 +03:00
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#endif
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if (!gThread)
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return;
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gThread->Shutdown();
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2002-02-18 03:10:55 +03:00
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NS_RELEASE(gThread);
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2002-04-14 04:27:16 +04:00
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gFireOnIdle = PR_FALSE;
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2001-12-16 09:13:17 +03:00
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}
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2002-12-04 03:57:20 +03:00
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nsresult nsTimerImpl::InitCommon(PRUint32 aType, PRUint32 aDelay)
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{
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/**
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* In case of re-Init, both with and without a preceding Cancel, clear the
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* mCanceled flag and assign a new mGeneration. But first, remove any armed
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* timer from the timer thread's list.
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*
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* If we are racing with the timer thread to remove this timer and we lose,
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* the RemoveTimer call made here will fail to find this timer in the timer
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* thread's list, and will return false harmlessly. We test mArmed here to
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* avoid the small overhead in RemoveTimer of locking the timer thread and
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* checking its list for this timer. It's safe to test mArmed even though
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* it might be cleared on another thread in the next cycle (or even already
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* be cleared by another CPU whose store hasn't reached our CPU's cache),
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* because RemoveTimer is idempotent.
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*/
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if (mArmed)
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gThread->RemoveTimer(this);
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mCanceled = PR_FALSE;
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mGeneration = PR_AtomicIncrement(&gGenerator);
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mType = (PRUint8)aType;
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SetDelayInternal(aDelay);
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return gThread->AddTimer(this);
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}
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2002-09-07 09:38:16 +04:00
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NS_IMETHODIMP nsTimerImpl::InitWithFuncCallback(nsTimerCallbackFunc aFunc,
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void *aClosure,
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PRUint32 aDelay,
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PRUint32 aType)
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2001-12-16 09:13:17 +03:00
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{
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2002-02-18 03:10:55 +03:00
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if (!gThread)
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return NS_ERROR_FAILURE;
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2001-12-16 09:13:17 +03:00
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2003-08-06 04:37:43 +04:00
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ReleaseCallback();
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2001-12-16 09:13:17 +03:00
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mCallbackType = CALLBACK_TYPE_FUNC;
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2002-12-04 03:57:20 +03:00
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mCallback.c = aFunc;
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2001-12-16 09:13:17 +03:00
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mClosure = aClosure;
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2002-12-04 03:57:20 +03:00
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return InitCommon(aType, aDelay);
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2001-12-16 09:13:17 +03:00
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}
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2002-09-07 09:38:16 +04:00
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NS_IMETHODIMP nsTimerImpl::InitWithCallback(nsITimerCallback *aCallback,
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PRUint32 aDelay,
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PRUint32 aType)
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2001-12-16 09:13:17 +03:00
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{
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2002-02-18 03:10:55 +03:00
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if (!gThread)
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return NS_ERROR_FAILURE;
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2001-12-16 09:13:17 +03:00
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2003-08-06 04:37:43 +04:00
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ReleaseCallback();
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2002-12-04 03:57:20 +03:00
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mCallbackType = CALLBACK_TYPE_INTERFACE;
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2001-12-16 09:13:17 +03:00
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mCallback.i = aCallback;
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2001-12-17 09:59:55 +03:00
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NS_ADDREF(mCallback.i);
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2001-12-16 09:13:17 +03:00
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2002-12-04 03:57:20 +03:00
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return InitCommon(aType, aDelay);
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2001-12-16 09:13:17 +03:00
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}
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2002-02-20 07:01:34 +03:00
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NS_IMETHODIMP nsTimerImpl::Init(nsIObserver *aObserver,
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PRUint32 aDelay,
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PRUint32 aType)
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{
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2002-03-08 23:11:49 +03:00
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if (!gThread)
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return NS_ERROR_FAILURE;
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2003-08-06 04:37:43 +04:00
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ReleaseCallback();
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2002-12-04 03:57:20 +03:00
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mCallbackType = CALLBACK_TYPE_OBSERVER;
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2002-02-20 07:01:34 +03:00
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mCallback.o = aObserver;
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NS_ADDREF(mCallback.o);
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2002-12-04 03:57:20 +03:00
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return InitCommon(aType, aDelay);
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2002-02-20 07:01:34 +03:00
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}
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NS_IMETHODIMP nsTimerImpl::Cancel()
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2001-12-16 09:13:17 +03:00
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{
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2002-03-08 23:11:49 +03:00
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mCanceled = PR_TRUE;
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2001-12-16 09:13:17 +03:00
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2001-12-31 07:04:22 +03:00
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if (gThread)
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gThread->RemoveTimer(this);
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2002-02-20 07:01:34 +03:00
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return NS_OK;
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2001-12-16 09:13:17 +03:00
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}
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2002-09-07 09:38:16 +04:00
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NS_IMETHODIMP nsTimerImpl::SetDelay(PRUint32 aDelay)
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2001-12-16 09:13:17 +03:00
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{
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2002-04-26 01:07:54 +04:00
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// If we're already repeating precisely, update mTimeout now so that the
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// new delay takes effect in the future.
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2002-09-07 09:38:16 +04:00
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if (mTimeout != 0 && mType == TYPE_REPEATING_PRECISE)
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2002-04-26 01:07:54 +04:00
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mTimeout = PR_IntervalNow();
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2001-12-16 09:13:17 +03:00
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SetDelayInternal(aDelay);
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2001-12-31 07:04:22 +03:00
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if (!mFiring && gThread)
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2001-12-16 09:13:17 +03:00
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gThread->TimerDelayChanged(this);
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2002-09-07 09:38:16 +04:00
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return NS_OK;
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2001-12-16 09:13:17 +03:00
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}
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2002-09-07 09:38:16 +04:00
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NS_IMETHODIMP nsTimerImpl::GetDelay(PRUint32* aDelay)
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{
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*aDelay = mDelay;
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return NS_OK;
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}
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|
NS_IMETHODIMP nsTimerImpl::SetType(PRUint32 aType)
|
2001-12-16 09:13:17 +03:00
|
|
|
{
|
|
|
|
mType = (PRUint8)aType;
|
|
|
|
// XXX if this is called, we should change the actual type.. this could effect
|
2002-04-14 04:27:16 +04:00
|
|
|
// repeating timers. we need to ensure in Fire() that if mType has changed
|
2001-12-16 09:13:17 +03:00
|
|
|
// during the callback that we don't end up with the timer in the queue twice.
|
2002-09-07 09:38:16 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerImpl::GetType(PRUint32* aType)
|
|
|
|
{
|
|
|
|
*aType = mType;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerImpl::GetClosure(void** aClosure)
|
|
|
|
{
|
|
|
|
*aClosure = mClosure;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerImpl::GetIdle(PRBool *aIdle)
|
|
|
|
{
|
|
|
|
*aIdle = mIdle;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerImpl::SetIdle(PRBool aIdle)
|
|
|
|
{
|
|
|
|
mIdle = aIdle;
|
|
|
|
return NS_OK;
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
|
2002-04-14 04:27:16 +04:00
|
|
|
void nsTimerImpl::Fire()
|
2001-12-16 09:13:17 +03:00
|
|
|
{
|
2002-03-08 23:11:49 +03:00
|
|
|
if (mCanceled)
|
2001-12-17 09:59:55 +03:00
|
|
|
return;
|
|
|
|
|
2002-02-18 03:10:55 +03:00
|
|
|
PRIntervalTime now = PR_IntervalNow();
|
2001-12-16 09:13:17 +03:00
|
|
|
#ifdef DEBUG_TIMERS
|
2002-01-15 04:20:47 +03:00
|
|
|
if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
|
|
|
|
PRIntervalTime a = now - mStart; // actual delay in intervals
|
|
|
|
PRUint32 b = PR_MillisecondsToInterval(mDelay); // expected delay in intervals
|
2002-02-18 03:10:55 +03:00
|
|
|
PRUint32 d = PR_IntervalToMilliseconds((a > b) ? a - b : b - a); // delta in ms
|
2002-01-15 04:20:47 +03:00
|
|
|
sDeltaSum += d;
|
|
|
|
sDeltaSumSquared += double(d) * double(d);
|
2002-03-08 23:11:49 +03:00
|
|
|
sDeltaNum++;
|
2002-01-15 04:20:47 +03:00
|
|
|
|
2002-02-18 03:10:55 +03:00
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG, ("[this=%p] expected delay time %4dms\n", this, mDelay));
|
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG, ("[this=%p] actual delay time %4dms\n", this, PR_IntervalToMilliseconds(a)));
|
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG, ("[this=%p] (mType is %d) -------\n", this, mType));
|
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG, ("[this=%p] delta %4dms\n", this, (a > b) ? (PRInt32)d : -(PRInt32)d));
|
2002-01-15 04:20:47 +03:00
|
|
|
|
|
|
|
mStart = mStart2;
|
|
|
|
mStart2 = 0;
|
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
|
|
|
|
2002-02-18 03:10:55 +03:00
|
|
|
PRIntervalTime timeout = mTimeout;
|
2002-09-07 09:38:16 +04:00
|
|
|
if (mType == TYPE_REPEATING_PRECISE) {
|
2002-02-18 03:10:55 +03:00
|
|
|
// Precise repeating timers advance mTimeout by mDelay without fail before
|
2002-04-14 04:27:16 +04:00
|
|
|
// calling Fire().
|
2002-04-26 01:07:54 +04:00
|
|
|
timeout -= PR_MillisecondsToInterval(mDelay);
|
2002-02-18 03:10:55 +03:00
|
|
|
}
|
|
|
|
gThread->UpdateFilter(mDelay, timeout, now);
|
|
|
|
|
2001-12-16 09:13:17 +03:00
|
|
|
mFiring = PR_TRUE;
|
|
|
|
|
2002-03-08 23:11:49 +03:00
|
|
|
switch (mCallbackType) {
|
|
|
|
case CALLBACK_TYPE_FUNC:
|
|
|
|
mCallback.c(this, mClosure);
|
|
|
|
break;
|
|
|
|
case CALLBACK_TYPE_INTERFACE:
|
2001-12-16 09:13:17 +03:00
|
|
|
mCallback.i->Notify(this);
|
2002-03-08 23:11:49 +03:00
|
|
|
break;
|
|
|
|
case CALLBACK_TYPE_OBSERVER:
|
2002-09-07 09:38:16 +04:00
|
|
|
mCallback.o->Observe(NS_STATIC_CAST(nsITimer*,this),
|
2002-03-08 23:11:49 +03:00
|
|
|
NS_TIMER_CALLBACK_TOPIC,
|
|
|
|
nsnull);
|
|
|
|
break;
|
|
|
|
default:;
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
mFiring = PR_FALSE;
|
|
|
|
|
|
|
|
#ifdef DEBUG_TIMERS
|
2002-01-15 04:20:47 +03:00
|
|
|
if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
|
2002-02-18 03:10:55 +03:00
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG,
|
2002-04-14 04:27:16 +04:00
|
|
|
("[this=%p] Took %dms to fire timer callback\n",
|
2002-02-18 03:10:55 +03:00
|
|
|
this, PR_IntervalToMilliseconds(PR_IntervalNow() - now)));
|
2002-01-15 04:20:47 +03:00
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
|
|
|
|
2002-09-07 09:38:16 +04:00
|
|
|
if (mType == TYPE_REPEATING_SLACK) {
|
2001-12-16 09:13:17 +03:00
|
|
|
SetDelayInternal(mDelay); // force mTimeout to be recomputed.
|
2001-12-31 07:04:22 +03:00
|
|
|
if (gThread)
|
|
|
|
gThread->AddTimer(this);
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-04 03:57:20 +03:00
|
|
|
struct TimerEventType : public PLEvent {
|
|
|
|
PRInt32 mGeneration;
|
2001-12-16 09:13:17 +03:00
|
|
|
#ifdef DEBUG_TIMERS
|
2002-12-04 03:57:20 +03:00
|
|
|
PRIntervalTime mInitTime;
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2002-04-14 04:27:16 +04:00
|
|
|
void* handleTimerEvent(TimerEventType* event)
|
2001-12-16 09:13:17 +03:00
|
|
|
{
|
2002-12-04 03:57:20 +03:00
|
|
|
nsTimerImpl* timer = NS_STATIC_CAST(nsTimerImpl*, event->owner);
|
|
|
|
if (event->mGeneration != timer->GetGeneration())
|
|
|
|
return nsnull;
|
|
|
|
|
2001-12-16 09:13:17 +03:00
|
|
|
#ifdef DEBUG_TIMERS
|
2002-01-15 04:20:47 +03:00
|
|
|
if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
|
2002-02-18 03:10:55 +03:00
|
|
|
PRIntervalTime now = PR_IntervalNow();
|
|
|
|
PR_LOG(gTimerLog, PR_LOG_DEBUG,
|
2002-04-14 04:27:16 +04:00
|
|
|
("[this=%p] time between PostTimerEvent() and Fire(): %dms\n",
|
2002-12-04 03:57:20 +03:00
|
|
|
event->owner, PR_IntervalToMilliseconds(now - event->mInitTime)));
|
2002-01-15 04:20:47 +03:00
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
2002-04-14 04:27:16 +04:00
|
|
|
|
|
|
|
if (gFireOnIdle) {
|
2002-09-07 09:38:16 +04:00
|
|
|
PRBool idle = PR_FALSE;
|
2002-12-04 03:57:20 +03:00
|
|
|
timer->GetIdle(&idle);
|
2002-09-07 09:38:16 +04:00
|
|
|
if (idle) {
|
2002-08-09 08:03:45 +04:00
|
|
|
NS_ASSERTION(gManager, "Global Thread Manager is null!");
|
2002-08-10 04:25:39 +04:00
|
|
|
if (gManager)
|
2002-12-04 03:57:20 +03:00
|
|
|
gManager->AddIdleTimer(timer);
|
2002-08-09 08:03:45 +04:00
|
|
|
return nsnull;
|
2002-04-14 04:27:16 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2002-12-04 03:57:20 +03:00
|
|
|
timer->Fire();
|
2002-02-20 07:01:34 +03:00
|
|
|
|
2002-12-04 03:57:20 +03:00
|
|
|
return nsnull;
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
|
2002-04-14 04:27:16 +04:00
|
|
|
void destroyTimerEvent(TimerEventType* event)
|
2001-12-16 09:13:17 +03:00
|
|
|
{
|
2002-12-04 03:57:20 +03:00
|
|
|
nsTimerImpl *timer = NS_STATIC_CAST(nsTimerImpl*, event->owner);
|
2001-12-16 09:13:17 +03:00
|
|
|
NS_RELEASE(timer);
|
|
|
|
PR_DELETE(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-04-14 04:27:16 +04:00
|
|
|
void nsTimerImpl::PostTimerEvent()
|
2001-12-16 09:13:17 +03:00
|
|
|
{
|
|
|
|
// XXX we may want to reuse the PLEvent in the case of repeating timers.
|
2002-04-14 04:27:16 +04:00
|
|
|
TimerEventType* event;
|
2001-12-16 09:13:17 +03:00
|
|
|
|
|
|
|
// construct
|
2002-04-14 04:27:16 +04:00
|
|
|
event = PR_NEW(TimerEventType);
|
2002-12-04 03:57:20 +03:00
|
|
|
if (!event)
|
|
|
|
return;
|
2001-12-16 09:13:17 +03:00
|
|
|
|
|
|
|
// initialize
|
|
|
|
PL_InitEvent((PLEvent*)event, this,
|
2002-04-14 04:27:16 +04:00
|
|
|
(PLHandleEventProc)handleTimerEvent,
|
|
|
|
(PLDestroyEventProc)destroyTimerEvent);
|
2001-12-16 09:13:17 +03:00
|
|
|
|
2002-02-18 03:10:55 +03:00
|
|
|
// Since TimerThread addref'd 'this' for us, we don't need to addref here.
|
2002-12-04 03:57:20 +03:00
|
|
|
// We will release in destroyMyEvent. We do need to copy the generation
|
|
|
|
// number from this timer into the event, so we can avoid firing a timer
|
|
|
|
// that was re-initialized after being canceled.
|
|
|
|
event->mGeneration = mGeneration;
|
2001-12-17 09:59:55 +03:00
|
|
|
|
2001-12-16 09:13:17 +03:00
|
|
|
#ifdef DEBUG_TIMERS
|
2002-01-15 04:20:47 +03:00
|
|
|
if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
|
2002-12-04 03:57:20 +03:00
|
|
|
event->mInitTime = PR_IntervalNow();
|
2002-01-15 04:20:47 +03:00
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
|
|
|
|
2002-02-18 03:10:55 +03:00
|
|
|
// If this is a repeating precise timer, we need to calculate the time for
|
|
|
|
// the next timer to fire before we make the callback.
|
2002-09-07 09:38:16 +04:00
|
|
|
if (mType == TYPE_REPEATING_PRECISE) {
|
2001-12-16 09:13:17 +03:00
|
|
|
SetDelayInternal(mDelay);
|
2001-12-31 07:04:22 +03:00
|
|
|
if (gThread)
|
|
|
|
gThread->AddTimer(this);
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
PRThread *thread;
|
2002-11-08 07:46:58 +03:00
|
|
|
nsresult rv = mCallingThread->GetPRThread(&thread);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
NS_WARNING("Droping timer event because thread is dead");
|
|
|
|
return;
|
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
|
|
|
|
nsCOMPtr<nsIEventQueue> queue;
|
2001-12-31 07:04:22 +03:00
|
|
|
if (gThread)
|
|
|
|
gThread->mEventQueueService->GetThreadEventQueue(thread, getter_AddRefs(queue));
|
2002-01-15 03:43:10 +03:00
|
|
|
if (queue)
|
2002-12-04 03:57:20 +03:00
|
|
|
queue->PostEvent(event);
|
2001-12-16 09:13:17 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
void nsTimerImpl::SetDelayInternal(PRUint32 aDelay)
|
|
|
|
{
|
2002-04-26 01:07:54 +04:00
|
|
|
PRIntervalTime delayInterval = PR_MillisecondsToInterval(aDelay);
|
|
|
|
if (delayInterval > DELAY_INTERVAL_MAX) {
|
|
|
|
delayInterval = DELAY_INTERVAL_MAX;
|
|
|
|
aDelay = PR_IntervalToMilliseconds(delayInterval);
|
|
|
|
}
|
|
|
|
|
2001-12-16 09:13:17 +03:00
|
|
|
mDelay = aDelay;
|
|
|
|
|
|
|
|
PRIntervalTime now = PR_IntervalNow();
|
2002-09-07 09:38:16 +04:00
|
|
|
if (mTimeout == 0 || mType != TYPE_REPEATING_PRECISE)
|
2002-02-18 03:10:55 +03:00
|
|
|
mTimeout = now;
|
2001-12-16 09:13:17 +03:00
|
|
|
|
2002-04-26 01:07:54 +04:00
|
|
|
mTimeout += delayInterval;
|
2002-03-08 23:11:49 +03:00
|
|
|
|
2001-12-16 09:13:17 +03:00
|
|
|
#ifdef DEBUG_TIMERS
|
2002-01-15 04:20:47 +03:00
|
|
|
if (PR_LOG_TEST(gTimerLog, PR_LOG_DEBUG)) {
|
|
|
|
if (mStart == 0)
|
|
|
|
mStart = now;
|
|
|
|
else
|
|
|
|
mStart2 = now;
|
|
|
|
}
|
2001-12-16 09:13:17 +03:00
|
|
|
#endif
|
|
|
|
}
|
2002-01-24 09:37:38 +03:00
|
|
|
|
2002-04-14 04:27:16 +04:00
|
|
|
/**
|
|
|
|
* Timer Manager code
|
|
|
|
*/
|
|
|
|
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS1(nsTimerManager, nsITimerManager)
|
|
|
|
|
|
|
|
nsTimerManager::nsTimerManager()
|
|
|
|
{
|
2002-08-09 08:03:45 +04:00
|
|
|
mLock = PR_NewLock();
|
|
|
|
gManager = this;
|
2002-04-14 04:27:16 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
nsTimerManager::~nsTimerManager()
|
|
|
|
{
|
2002-08-09 08:03:45 +04:00
|
|
|
gManager = nsnull;
|
|
|
|
PR_DestroyLock(mLock);
|
|
|
|
|
|
|
|
nsTimerImpl *theTimer;
|
|
|
|
PRInt32 count = mIdleTimers.Count();
|
2002-08-16 01:00:58 +04:00
|
|
|
|
|
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
|
|
theTimer = NS_STATIC_CAST(nsTimerImpl*, mIdleTimers[i]);
|
2002-08-09 08:03:45 +04:00
|
|
|
NS_IF_RELEASE(theTimer);
|
|
|
|
}
|
2002-04-14 04:27:16 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerManager::SetUseIdleTimers(PRBool aUseIdleTimers)
|
|
|
|
{
|
|
|
|
if (aUseIdleTimers == PR_FALSE && gFireOnIdle == PR_TRUE)
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
|
|
|
gFireOnIdle = aUseIdleTimers;
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerManager::GetUseIdleTimers(PRBool *aUseIdleTimers)
|
|
|
|
{
|
|
|
|
*aUseIdleTimers = gFireOnIdle;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerManager::HasIdleTimers(PRBool *aHasTimers)
|
|
|
|
{
|
2002-08-09 08:03:45 +04:00
|
|
|
nsAutoLock lock (mLock);
|
|
|
|
PRUint32 count = mIdleTimers.Count();
|
2002-04-14 04:27:16 +04:00
|
|
|
*aHasTimers = (count != 0);
|
2002-08-09 08:03:45 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
2002-04-14 04:27:16 +04:00
|
|
|
|
2002-08-09 08:03:45 +04:00
|
|
|
nsresult nsTimerManager::AddIdleTimer(nsITimer* timer)
|
|
|
|
{
|
|
|
|
if (!timer)
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsAutoLock lock(mLock);
|
|
|
|
mIdleTimers.AppendElement(timer);
|
|
|
|
NS_ADDREF(timer);
|
2002-04-14 04:27:16 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsTimerManager::FireNextIdleTimer()
|
|
|
|
{
|
2002-08-09 08:03:45 +04:00
|
|
|
if (!gFireOnIdle || !nsIThread::IsMainThread()) {
|
2002-04-14 04:27:16 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2002-08-09 08:03:45 +04:00
|
|
|
nsTimerImpl *theTimer = nsnull;
|
|
|
|
|
|
|
|
{
|
|
|
|
nsAutoLock lock (mLock);
|
|
|
|
PRUint32 count = mIdleTimers.Count();
|
|
|
|
|
|
|
|
if (count == 0)
|
|
|
|
return NS_OK;
|
|
|
|
|
|
|
|
theTimer = NS_STATIC_CAST(nsTimerImpl*, mIdleTimers[0]);
|
|
|
|
mIdleTimers.RemoveElement(theTimer);
|
|
|
|
}
|
2002-04-14 04:27:16 +04:00
|
|
|
|
2002-08-09 08:03:45 +04:00
|
|
|
theTimer->Fire();
|
2002-04-14 04:27:16 +04:00
|
|
|
|
2002-08-09 08:03:45 +04:00
|
|
|
NS_RELEASE(theTimer);
|
2002-04-14 04:27:16 +04:00
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
2002-09-07 09:38:16 +04:00
|
|
|
|
|
|
|
|
|
|
|
// NOT FOR PUBLIC CONSUMPTION!
|
|
|
|
nsresult
|
|
|
|
NS_NewTimer(nsITimer* *aResult, nsTimerCallbackFunc aCallback, void *aClosure,
|
|
|
|
PRUint32 aDelay, PRUint32 aType)
|
|
|
|
{
|
|
|
|
nsTimerImpl* timer = new nsTimerImpl();
|
|
|
|
if (timer == nsnull)
|
|
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
NS_ADDREF(timer);
|
|
|
|
|
|
|
|
nsresult rv = timer->InitWithFuncCallback(aCallback, aClosure,
|
|
|
|
aDelay, aType);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
NS_RELEASE(timer);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
*aResult = timer;
|
|
|
|
return NS_OK;
|
|
|
|
}
|