114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/**
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******************************************************************************
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*
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* @file tilecachequeue.cpp
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
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* @brief
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* @see The GNU Public License (GPL) Version 3
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* @defgroup OPMapWidget
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* @{
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tilecachequeue.h"
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// #define DEBUG_TILECACHEQUEUE
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namespace core {
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TileCacheQueue::TileCacheQueue()
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{}
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TileCacheQueue::~TileCacheQueue()
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{
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// QThread::wait(10000);
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}
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void TileCacheQueue::EnqueueCacheTask(CacheItemQueue *task)
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{
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "DB Do I EnqueueCacheTask" << task->GetPosition().X() << "," << task->GetPosition().Y();
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#endif // DEBUG_TILECACHEQUEUE
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if (!tileCacheQueue.contains(task)) {
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "EnqueueCacheTask" << task->GetPosition().X() << "," << task->GetPosition().Y();
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#endif // DEBUG_TILECACHEQUEUE
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mutex.lock();
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tileCacheQueue.enqueue(task);
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mutex.unlock();
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if (this->isRunning()) {
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Wake Thread";
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#endif // DEBUG_TILECACHEQUEUE
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// this->start(QThread::NormalPriority);
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// waitmutex.lock();
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waitc.wakeAll();
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// waitmutex.unlock();
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} else {
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Start Thread";
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#endif // DEBUG_TILECACHEQUEUE
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this->start(QThread::NormalPriority);
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}
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}
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}
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void TileCacheQueue::run()
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{
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Cache Engine Start";
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#endif // DEBUG_TILECACHEQUEUE
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while (true) {
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CacheItemQueue *task;
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Cache";
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#endif // DEBUG_TILECACHEQUEUE
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if (tileCacheQueue.count() > 0) {
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mutex.lock();
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task = tileCacheQueue.dequeue();
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mutex.unlock();
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Cache engine Put:" << task->GetPosition().X() << "," << task->GetPosition().Y();
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#endif // DEBUG_TILECACHEQUEUE
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Cache::Instance()->ImageCache.PutImageToCache(task->GetImg(), task->GetMapType(), task->GetPosition(), task->GetZoom());
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usleep(44);
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delete task;
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} else {
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qDebug() << "Cache engine BEGIN WAIT";
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waitmutex.lock();
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int tout = 4000;
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if (!waitc.wait(&waitmutex, tout)) {
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waitmutex.unlock();
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Cache Engine TimeOut";
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#endif // DEBUG_TILECACHEQUEUE
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mutex.lock();
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if (tileCacheQueue.count() == 0) {
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mutex.unlock();
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break;
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}
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mutex.unlock();
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}
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qDebug() << "Cache Engine DID NOT TimeOut";
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waitmutex.unlock();
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}
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}
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#ifdef DEBUG_TILECACHEQUEUE
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qDebug() << "Cache Engine Stopped";
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#endif // DEBUG_TILECACHEQUEUE
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}
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}
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