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capture.cpp
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capture.cpp
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#include "capture.hh"
#include <stdio.h>
void Capture::getRequest()
{
qint64 musage = 0;
musage = Util::getMemUsage();
LOG(DEBUG) << "Current memory usage " << (musage/(1024*1024)) << "MB";
// if(musage > maxMemUsage)
// {
// LOG(FATAL) << "Memory usage is over limitation. (" << musage << ":" << maxMemUsage << ")";
// }
if(!redis->connected())
redis->connect();
clear();
request = redis->getRequest();
if(request == NULL)
{
LOG(DEBUG) << "getRequest() : no request.";
sleepTimer = startTimer(waitInterval);
return;
}
result = new Result(request);
load();
}
void Capture::timerEvent(QTimerEvent *event)
{
killTimer(event->timerId());
if(event->timerId() == sleepTimer)
{
getRequest();
}else if(event->timerId() == loadTimer)
{
if(view != NULL)
view->stop();
disconnect(this, SLOT(_loadStarted()));
disconnect(this, SLOT(_loadProgress(int)));
disconnect(this, SLOT(_loadFinished(bool)));
LOG(DEBUG) << "timeout to load the page " << request->getUrl();
result->setSuccess(false);
result->setFailReason("Capture : over timeout to load the page, url ");
result->appendFailReason(request->getUrl());
// Need to send fail result.
// here!!
result->getJson();
// go back to first step.
getRequest();
}
}
void Capture::load()
{
if(result == NULL)
{
startTimer(waitInterval);
return;
}
result->setSuccess(false);
result->setLoaded(false);
result->setGenerated(false);
view = new QWebView();
connect(view, SIGNAL(loadStarted()), this, SLOT(_loadStarted()));
connect(view, SIGNAL(loadProgress(int)), this, SLOT(_loadProgress(int)));
connect(view, SIGNAL(loadFinished(bool)), this, SLOT(_loadFinished(bool)));
view->settings()->setMaximumPagesInCache(0);
view->settings()->setObjectCacheCapacities(0, 0, 0);
view->settings()->setOfflineStorageDefaultQuota(0);
loadTimer = startTimer(waitInterval);
result->start();
view->load(request->getUrl());
}
void Capture::clear()
{
if(view != NULL)
{
rmQue->enque(view);
//delete view;
view = NULL;
}
if(result == NULL && request != NULL)
{
delete request;
request = NULL;
}else if(result != NULL)
{
delete result;
result = NULL;
}
sleepTimer = 0;
loadTimer = 0;
}
Capture::Capture(QApplication *app, Redis *redis, WebViewRemoveQue *rmQue, qint64 maxMemUsage, long loadTimeout)
: app(app),
redis(redis),
rmQue(rmQue),
view(NULL),
request(NULL),
result(NULL),
maxMemUsage(maxMemUsage),
loadTimeout(loadTimeout)
{
this->redis = redis;
waitInterval = CAPTURE_INTERVAL;
}
void Capture::start()
{
getRequest();
}
void Capture::_loadStarted()
{
emit loadStarted();
}
void Capture::_loadProgress(int)
{
}
void Capture::_loadFinished(bool ok)
{
result->setLoaded(true);
// do something here
// go back to first
getRequest();
}