117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
|
/*
|
||
|
|
*
|
||
|
|
* @APPLE_LICENSE_HEADER_START@
|
||
|
|
*
|
||
|
|
* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This file contains Original Code and/or Modifications of Original Code
|
||
|
|
* as defined in and that are subject to the Apple Public Source License
|
||
|
|
* Version 2.0 (the 'License'). You may not use this file except in
|
||
|
|
* compliance with the License. Please obtain a copy of the License at
|
||
|
|
* http://www.opensource.apple.com/apsl/ and read it before using this
|
||
|
|
* file.
|
||
|
|
*
|
||
|
|
* The Original Code and all software distributed under the License are
|
||
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
||
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
||
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
|
||
|
|
* Please see the License for the specific language governing rights and
|
||
|
|
* limitations under the License.
|
||
|
|
*
|
||
|
|
* @APPLE_LICENSE_HEADER_END@
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
File: TimeoutTask.cpp
|
||
|
|
|
||
|
|
Contains: Implementation of TimeoutTask
|
||
|
|
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "TimeoutTask.h"
|
||
|
|
#include "OSMemory.h"
|
||
|
|
|
||
|
|
TimeoutTaskThread* TimeoutTask::sThread = NULL;
|
||
|
|
|
||
|
|
void TimeoutTask::Initialize()
|
||
|
|
{
|
||
|
|
if (sThread == NULL)
|
||
|
|
{
|
||
|
|
sThread = NEW TimeoutTaskThread();
|
||
|
|
sThread->Signal(Task::kStartEvent);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
TimeoutTask::TimeoutTask(Task* inTask, SInt64 inTimeoutInMilSecs)
|
||
|
|
: fTask(inTask), fQueueElem()
|
||
|
|
{
|
||
|
|
fQueueElem.SetEnclosingObject(this);
|
||
|
|
this->SetTimeout(inTimeoutInMilSecs);
|
||
|
|
if (NULL == inTask)
|
||
|
|
fTask = (Task *) this;
|
||
|
|
Assert(sThread != NULL); // this can happen if RunServer intializes tasks in the wrong order
|
||
|
|
|
||
|
|
OSMutexLocker locker(&sThread->fMutex);
|
||
|
|
sThread->fQueue.EnQueue(&fQueueElem);
|
||
|
|
}
|
||
|
|
|
||
|
|
TimeoutTask::~TimeoutTask()
|
||
|
|
{
|
||
|
|
OSMutexLocker locker(&sThread->fMutex);
|
||
|
|
sThread->fQueue.Remove(&fQueueElem);
|
||
|
|
}
|
||
|
|
|
||
|
|
void TimeoutTask::SetTimeout(SInt64 inTimeoutInMilSecs)
|
||
|
|
{
|
||
|
|
fTimeoutInMilSecs = inTimeoutInMilSecs;
|
||
|
|
if (inTimeoutInMilSecs == 0)
|
||
|
|
fTimeoutAtThisTime = 0;
|
||
|
|
else
|
||
|
|
fTimeoutAtThisTime = OS::Milliseconds() + fTimeoutInMilSecs;
|
||
|
|
}
|
||
|
|
|
||
|
|
SInt64 TimeoutTaskThread::Run()
|
||
|
|
{
|
||
|
|
//ok, check for timeouts now. Go through the whole queue
|
||
|
|
OSMutexLocker locker(&fMutex);
|
||
|
|
SInt64 curTime = OS::Milliseconds();
|
||
|
|
SInt64 intervalMilli = kIntervalSeconds * 1000;//always default to 60 seconds but adjust to smallest interval > 0
|
||
|
|
SInt64 taskInterval = intervalMilli;
|
||
|
|
|
||
|
|
for (OSQueueIter iter(&fQueue); !iter.IsDone(); iter.Next())
|
||
|
|
{
|
||
|
|
TimeoutTask* theTimeoutTask = (TimeoutTask*)iter.GetCurrent()->GetEnclosingObject();
|
||
|
|
|
||
|
|
//if it's time to time this task out, signal it
|
||
|
|
if ((theTimeoutTask->fTimeoutAtThisTime > 0) && (curTime >= theTimeoutTask->fTimeoutAtThisTime))
|
||
|
|
{
|
||
|
|
#if TIMEOUT_DEBUGGING
|
||
|
|
qtss_printf("TimeoutTask %"_S32BITARG_" timed out. Curtime = %"_64BITARG_"d, timeout time = %"_64BITARG_"d\n",(SInt32)theTimeoutTask, curTime, theTimeoutTask->fTimeoutAtThisTime);
|
||
|
|
#endif
|
||
|
|
theTimeoutTask->fTask->Signal(Task::kTimeoutEvent);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
taskInterval = theTimeoutTask->fTimeoutAtThisTime - curTime;
|
||
|
|
if ( (taskInterval > 0) && (theTimeoutTask->fTimeoutInMilSecs > 0) && (intervalMilli > taskInterval) )
|
||
|
|
intervalMilli = taskInterval + 1000; // set timeout to 1 second past this task's timeout
|
||
|
|
#if TIMEOUT_DEBUGGING
|
||
|
|
qtss_printf("TimeoutTask %"_S32BITARG_" not being timed out. Curtime = %"_64BITARG_"d. timeout time = %"_64BITARG_"d\n", (SInt32)theTimeoutTask, curTime, theTimeoutTask->fTimeoutAtThisTime);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
(void)this->GetEvents();//we must clear the event mask!
|
||
|
|
|
||
|
|
OSThread::ThreadYield();
|
||
|
|
|
||
|
|
#if TIMEOUT_DEBUGGING
|
||
|
|
qtss_printf ("TimeoutTaskThread::Run interval seconds= %"_S32BITARG_"\n", (SInt32) intervalMilli/1000);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return intervalMilli;//don't delete me!
|
||
|
|
}
|