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Qthread

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  • S Offline
    S Offline
    satyanarayana143
    wrote on last edited by
    #1

    i am running Qprocess in Qthread it is not executing can any body tell what is happening .Below is my code .

    This code is in thread

    QProcess *process = new QProcess();
    process->start("sh",QStringList() << "du");
    process->waitForFinished();

    JonBJ 1 Reply Last reply
    0
    • S satyanarayana143

      i am running Qprocess in Qthread it is not executing can any body tell what is happening .Below is my code .

      This code is in thread

      QProcess *process = new QProcess();
      process->start("sh",QStringList() << "du");
      process->waitForFinished();

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by JonB
      #2

      @satyanarayana143
      Forget about threads. (I don't know if you even need a thread, QProcess running is asynchronous, you probably do not need any thread, but that's another matter.)

      process->start("sh",QStringList() << "du");
      

      I don't know what you expect this to do, but there is a fair chance it is incorrect. You should test exactly this command in a terminal and see what you get. In code you must read from standard error at minimum after trying to execute a command because 90% of the time people say "my command is not working" it turns out a message is being output there. See e.g. https://doc.qt.io/qt-5/qprocess.html#readAllStandardError. You should also always slot onto https://doc.qt.io/qt-5/qprocess.html#errorOccurred.

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