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Thread: External libary in a separate thread: is this correct?

  1. #1
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    Unhappy External libary in a separate thread: is this correct?

    I have a crash in an external mathematical library when I use it from a separate thread than the main one, while it works perfectly if I call it from the main thread.
    I know this library is not multi-thread, but it is used in a sequential way using a single thread. Neverless it crashs when comparing the time elapsed using CPU clocks.
    Can someone explain me why this code is wrong, or if you think it is a bug in the external library or in the qt thread library?
    Attached there is a complete compilable (small) example, but the core of the code is:
    Qt Code:
    1. int main(int argc, char *argv[]){
    2.  
    3. cout << "Test on a glpk application using Qt Threads" << endl<<endl;
    4. Thread wThread; // subclass QThread just for the run() method.
    5. for (uint y=0;y<5000;y++){
    6. wThread.start(); // just calls the glpk simple documentation example
    7. wThread.wait();
    8. }
    9. cout <<"All done without errors (crashing)"<<endl;
    10. return 0;
    11. }
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  2. #2
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    Default Re: External libary in a separate thread: is this correct?

    Please don't start multiple threads on the same subject.

    http://www.qtcentre.org/forum/f-qt-p...ock-22171.html
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


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