Re: [Paraview] Threads and paraview

[John Biddiscombe]

Any idea what i am doing wrong? yes   vrpnThread theThread;   theThread.start(); You've allocated a stack object which creates the thread, the button click routine exits immediately leaving the thread running, but the object is destroyed. use "new theThread(blah); " and manage the pointer by hand later JB Hi all, I have an issue concerning thread usage inside paraview. I am using the vrpn library to connect some controllers and manipulate paraview's objects. I am running the connection routine of vrpn on a separate thread (so the main thread of paraview keeps running smooth). However i can't seem to launch the thread correctly... what i am doing is: In the run method of my class(which i inherit from QThread) void myThread::run() {   analog = new vrpn_Analog_Remote(name.c_str());   if(!analog)   {     cout << "Error opening device";     return;    }  else   {     std::cout<<"SUCCESS"<<std::endl;     analog->register_change_handler ( NULL, vrpnThread::handleAnalog );     while(true)     {       analog->mainloop();     }   } } In the paraview GUI i have a button when pressed launches a connection to a vrpn server, as follows: void SourceToolbarActions::connectVRPNServer(void) {   vrpnThread theThread;   theThread.start(); } So, when i click the GUI button a message appears saying the following:             QThread: Destroyed while thread is still running... I have put the thread to wait also              theThread.wait()  but if i do this its obviously that Paraview's GUI will get blocked... Any ideas how to work around this problem... Thanks in advance. Any idea what i am doing wrong? _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview -- John Biddiscombe, email:biddisco @ cscs.ch http://www.cscs.ch/ CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07 Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82

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