[Qt-interest] QNetworkAccessManager warning

Iñigo Illán Aranburu kodeport at terra.es
Tue Jan 26 23:45:22 CET 2010


I think you should try deleting netManager on the destructor.


El mar, 26-01-2010 a las 23:31 +0100, Tr3wory escribió:

> It's empty.
> 
> I found another interesting thing: if I wait more than 1 minute after
> the finished(QNetworkReply*) signal, then I don't get the message when
> the program is exiting.
> 
> tr3w
> 
> On Tue, Jan 26, 2010 at 11:14 PM, Iñigo Illán <kodeport at terra.es> wrote:
> > I think it could help if you also provide us the destructor of the class.
> >
> >
> > El mar, 26-01-2010 a las 22:28 +0100, Tr3wory escribió:
> >
> > Hi!
> >
> > Recently I switched my project from 4.5.2 to 4.6.1.
> > After that I always got a "QWaitCondition: Destroyed while threads are
> > still waiting" message when my program was exiting.
> >
> > I used QHttp to download a png from the net. If I removed it then the
> > message disappeared.
> >
> > Because the QHttp is obsolete I switched to QNetworAcessManager. But I
> > still get the message.
> >
> > Do you have any idea?
> >
> > Code:
> >     QUrl url=tr("http://example.com/example.png");
> >
> >     QNetworkAccessManager* netManager=new QNetworkAccessManager(this);
> >
> > connect(netManager,SIGNAL(finished(QNetworkReply*)),this,SLOT(onNetworkReplyFinished(QNetworkReply*)));
> >     netManager->get(QNetworkRequest(url));
> > ...
> >
> > void MainWindow::onNetworkReplyFinished(QNetworkReply* reply)
> > {
> >     if (reply->error()==QNetworkReply::NoError &&
> > m_banner.loadFromData(reply->readAll()) && m_mainMenu)
> >             m_mainMenu->addBanner(m_banner);
> >
> >     reply->deleteLater();
> > }
> >
> > Stack:
> > ...
> > 5	qWarning	qglobal.cpp	2378	0x6a10e59d	
> > 6	~QWaitCondition	qwaitcondition_win.cpp	155	0x6a115c90	
> > 7	~QThreadPoolPrivate	qthreadpool_p.h	69	0x6a264afd	
> > 8	QScopedPointerDeleter<QObjectData>::cleanup	qscopedpointer.h	62	0x6a267f0a	
> > 9	~QScopedPointer	qscopedpointer.h	100	0x6a25e9f1	
> > 10	~QObject	qobject.cpp	992	0x6a20cbf8	
> > 11	~QThreadPool	qthreadpool.cpp	430	0x6a10d72e	
> > 12	~QHostInfoLookupManager	qhostinfo.cpp	454	0x6804ef50	
> > 13	~QGlobalStaticDeleter	qglobal.h	1799	0x6809592f	
> > 14	__tcf_0	qhostinfo.cpp	64	0x6804df5e	
> > 15	__dll_exit	C:\Qt\4.6.1\bin\QtNetworkd4.dll	0	0x6800102f	
> > 16	DllMainCRTStartup at 12	C:\Qt\4.6.1\bin\QtNetworkd4.dll	0	0x680010f5	
> > 17	ntdll!LdrSetAppCompatDllRedirectionC
> > allback	C:\WINDOWS\system32\ntdll.dll	0	0x7c9011a7
> > 18	??		0	0x68000000	
> > 19	??		0	0x00000000	
> >
> > System:
> > Windows XP, MinGW 4.4, Qt 4.6.1
> >
> >
> > tr3w
> > _______________________________________________
> > Qt-interest mailing list
> > Qt-interest at trolltech.com
> > http://lists.trolltech.com/mailman/listinfo/qt-interest
> >
> >
> 
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