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/**
******************************************************************************
*
* @file tilecachequeue.cpp
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief
* @see The GNU Public License (GPL) Version 3
* @defgroup OPMapWidget
* @{
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tilecachequeue.h"
//#define DEBUG_TILECACHEQUEUE
namespace core {
TileCacheQueue::TileCacheQueue()
{
}
TileCacheQueue::~TileCacheQueue()
{
// QThread::wait(10000);
}
void TileCacheQueue::EnqueueCacheTask(CacheItemQueue *task)
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"DB Do I EnqueueCacheTask"<<task->GetPosition().X()<<","<<task->GetPosition().Y();
#endif //DEBUG_TILECACHEQUEUE
if(!tileCacheQueue.contains(task))
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"EnqueueCacheTask"<<task->GetPosition().X()<<","<<task->GetPosition().Y();
#endif //DEBUG_TILECACHEQUEUE
mutex.lock();
tileCacheQueue.enqueue(task);
mutex.unlock();
if(this->isRunning())
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Wake Thread";
#endif //DEBUG_TILECACHEQUEUE
//this->start(QThread::NormalPriority);
//waitmutex.lock();
waitc.wakeAll();
//waitmutex.unlock();
}
else
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Start Thread";
#endif //DEBUG_TILECACHEQUEUE
this->start(QThread::NormalPriority);
}
}
}
void TileCacheQueue::run()
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache Engine Start";
#endif //DEBUG_TILECACHEQUEUE
while(true)
{
CacheItemQueue *task;
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache";
#endif //DEBUG_TILECACHEQUEUE
if(tileCacheQueue.count()>0)
{
mutex.lock();
task=tileCacheQueue.dequeue();
mutex.unlock();
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache engine Put:"<<task->GetPosition().X()<<","<<task->GetPosition().Y();
#endif //DEBUG_TILECACHEQUEUE
Cache::Instance()->ImageCache.PutImageToCache(task->GetImg(),task->GetMapType(),task->GetPosition(),task->GetZoom());
usleep(44);
delete task;
}
else
{
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache engine BEGIN WAIT";
#endif //DEBUG_TILECACHEQUEUE
waitmutex.lock();
int tout=4000;
if(!waitc.wait(&waitmutex,tout))
{
waitmutex.unlock();
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache Engine TimeOut";
#endif //DEBUG_TILECACHEQUEUE
mutex.lock();
if(tileCacheQueue.count()==0)
{
mutex.unlock();
break;
}
mutex.unlock();
}
#ifdef DEBUG_TILECACHEQUEUE
qDebug()<<"Cache Engine DID NOT TimeOut";
#endif //DEBUG_TILECACHEQUEUE