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Qtimer Cannot Be Stopped From Another Thread


In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms By the way, I hope you realize the slot will be called in the context of the main thread and not the worker thread. This topic has been deleted. Here is the code : NotificationThread::NotificationThread(QObject *parent) :QThread(parent), m_timerInterval(0) { moveToThread(this); } NotificationThread::~NotificationThread() { ; } void NotificationThread::fire() { WRITELOG("A::fire called -- currentThread:" + QString::number((int)currentThread()->currentThreadId())); QVector* batchVectorResult = new QVector(); emit check over here

What I have concluded is that while it does occur using some of my plugins, I can also get it to occur when not even loading my plugins (i.e. Prior to that I managed to get it to happen while using the edit metadata dialog to "Generate default cover" for 50 books. The timer will work as follows. Related 3Qt Passing “this” as a parent when building a QObject that is moved to a thread0QThread: Call a signal in the right thread3How to run a timer inside a QThread?0QTimer http://stackoverflow.com/questions/26461887/qt-timers-cannot-be-stopped-from-another-thread

Qobject::starttimer: Timers Cannot Be Started From Another Thread Python

And, like I explained above, objects belong to the thread they were created in. Any ideas/suggestions welcomed - particularly if chaley/Kovid et al could re-cast their eye over the threading around the cover browser and see if they can spot a possible cause. yxmaomao11th September 2008, 08:56I think you should do that in : QThread::finished() yxmaomao11th September 2008, 09:35Hi Mclark,I have tested your code, every thing is right on my PC, I am using NoScript).

Why "silver-tongued" for someone who is convincing? now i have in my main window button that supposed stop/start this operation. Can you tell me if my concept could work? Qtimer Singleshot QObject::killTimer: timers cannot be stopped from another thread QObject::killTimers: timers cannot be stopped from another thread I am using 2 QTimers in my app.

I'll keep an eye on it, it has been behaving itself since I posted in typical fashion. Qtimer Timers Cannot Be Started From Another Thread Do I have to use additional threads (QThread) to the main thread? When the object is created it is put into the list. c++ qthread share|improve this question edited Aug 31 '15 at 17:13 Shehary 6,84071338 asked Jun 6 '11 at 12:39 user63898 8,98741169339 add a comment| 3 Answers 3 active oldest votes up

Is the Čech cohomology of an orbifold isomorphic to its singular cohomology? Qthread Look for any places where timers could implicitly be used, such as network timeouts, double-click timeouts, and the like. Bitbucket Features Pricing owner/repository English English 日本語 Sign up Log in thg Actions Clone Compare Fork Navigation Overview Source Commits Branches Pull requests Pipelines New 458 Issues Wiki Downloads Settings HTTPS I was curious whether other Calibre developers had seen it - perhaps it is a Windows Qt thing as chaley says which is why Kovid perhaps hasn't come across it.

Qtimer Timers Cannot Be Started From Another Thread

I once was able to create 3 covers before it crashed calibre with this error showing in debug. I can't see anything special or clever about the dialogs but if I can consistently replicate it that would be a start. Qobject::starttimer: Timers Cannot Be Started From Another Thread Python DoctorOhh03-22-2011, 10:24 PMHmm, I still dont see anything that could cause this, but I've made some changes to the cover browser, see if it makes a difference in the next release. Qobject::killtimers: Timers Cannot Be Stopped From Another Thread Python Reply Quote 0 GentooXativa last edited by Use signals to start/stop times, check that "wiki page":http://developer.qt.nokia.com/wiki/ThreadsEventsQObjects I hope this help you :) Jose Vicente Giner Sanchez - Senior Mobile Developer www.gigigo.com

I changed one method signature and now have over 25,000 errors. Clone in SourceTree Atlassian SourceTree is a free Git and Mercurial client for Windows. My dialog is just a normal modal one inheriting from QDialog no different to my other plugins, being displayed using d.exec_(), nothing special about the controls etc. PortManager , MainWindow . Movetothread

I'd like it to be run in a different thread so that it isn't sensitive to main program's events and work.. And then just use YourClass.moveToThread( &YourQtThread) to ensure your signals and slots are process on that thread. Can Trump undo the UN climate change agreement? this content Like I said above it is just a bog standard dialog with the "normal" set of widgets like QTableWidget, QLabel, buttons etc.

A guy scammed me, but he gave me a bank account number & routing number. Calibre uses timers for several things such as metadata backup throttling, but all the uses are correct. Skip user information harmodrew Trainee Posts: 68 1 Saturday, September 11th 2010, 11:36am timers and threads Hello!

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kovidgoyal03-07-2011, 11:07 PMThat's what I find confusing. I placed the timer deletion code in the run() method but after exec() returns, the m_pTimer member value indicates that the QTimer instance has been deleted. Everything is explained by the "object belongs to a thread" mechanism. -- Thiago Macieira - thiago.macieira (AT) nokia.com Senior Product Manager - Nokia, Qt Software Sandakerveien 116, NO-0402 Oslo, Norway _______________________________________________ You need to create the timer in the thread where you want to run it:.

Browse other questions tagged c++ multithreading qt qthread qtimer or ask your own question. kiwidude03-08-2011, 06:50 AMThanks Kovid/chaley. The other is a private member of my QMainWindow, but the way I'm using the app, the timer shouldn't be created (it should only be created when running the app from QObject::killTimers: timers cannot be stopped from another thread QObject::killTimers: timers cannot be stopped from another thread On Kiwidude's recommendation I hid the cover browser and I was successful in creating 32

It got about 22% of the way through according to the progress dialog and then crashed. This is not allowed, because Qt rely on thread affinity to timeout timers. Provided that the timer doesn't have a parent it has to be you or the timer is not deleted at all. There is no stack trace in the command window output so I have no idea where the debug messages are coming from?

My timer package consist out of a "tmr" module, a "TimerForFWUpgrade" module and a "SingleTimer" module. while(TMR_IsElapsed(TMR_NBR_CFU) != 1); // if TMR_IsElapsed check for errorhandling .... } Module tmr (interface to C program): extern "C" { void TMR_Set(UINT8 tmrnbr, UINT32 time) { TimerForFWUpgrade::set(tmrnbr, time); } INT8 TMR_IsElapsed(UINT8 Login Register Unread posts Unreplied threads Threads of the last 24 hours Advanced Search Advanced Search QtForum.org Forum Portal Members Gallery Our Sponsor: Linux-Onlineshop.de QtForum.org » QtForum.org » Qt » Qt Can a president win the electoral college and lose the popular vote Teenage daughter refusing to go to school Zener diodes in glass axial package - not inherently shielded from photoelectric

Previewing/accepting incoming changes seems to be the trigger. 2011-04-03T16:36:55+00:00 Eduard-Cristian Stefan reporter FWIW, Calibre had a similar issue between 0.7.49 and 0.7.50: thread: http://www.mobileread.com/forums/showthread.php?t=124611 source diff (src/calibre/gui2/cover_flow.py): http://bazaar.launchpad.net/~kovid/calibre/trunk/revision/8436?remember=8504&compare_revid=8504 Another (potential) useful what im doing wrong? If it contains any objects that have been waiting to be initialized for too long, they are rescheduled and removed from the list. Did you understand the usage of SIGNALs and SLOTs to handle a QTimer or do you need a sample code snippet? –nnb Oct 21 '14 at 5:57 I already

When you try to start the timer, you do in a different thread (in run()), not in the thread where the timer was created, which gives you the warning. Your problem will be solved if you create timer object in thread run mode. *********************************************************** class MyThread : public QThread { QTime currentTime; public: virtual void run(); protected: void timerEvent(); }; And the object itself lives in the context of the thread that created it (the object, not the thread) therefore it lives in context of the main thread.