[Qt-interest] Simple question regarding the threads documentation

[Patric]

I see what you mean... but I'm connecting one object of type MainWindow to another of type TestManager. 

testManager.moveToThread(MyThread::myThread);

connect(this, SIGNAL(mainSignal()), &testManager, SLOT(onMainSignal()));
connect(&testManager, SIGNAL(threadSignal()), this, SLOT(onThreadSignal()));



And I'm just moving the testManager object to MyThread, and am connecting the MainWindow object to the TestManager object. And vice versa. And it's working. 



Regards, 

Patric

  ----- Original Message ----- 
  From: Jesús Fernández Prieto 
  To: Patric 
  Cc: qt-interest at trolltech.com 
  Sent: Thursday, June 18, 2009 11:44 AM
  Subject: Re: [Qt-interest] Simple question regarding the threads documentation


  Hi!

  Yes, it really works in this case, because you are connecting an object with a QThread object. But the QThread object is not in the new thread.

  The new thread is alive in the QThread::run method execution.

  If there's a method MyThread::newMethod() and you call it from the main thread the method will be executed in the main thread.


  2009/6/18 Patric <userqt at gmail.com>

    Hi all. I have a newby question here. 
    I was reading the Thread support documentation, and found out this 

    Event driven objects may only be used in a single thread. Specifically, this applies to the timer mechanism and the network module. For example, you cannot start a timer or connect a socket in a thread that is not the object's thread.

    Especially the last words

    "or connect a socket in a thread that is not the object's thread."

    I didn't understood this. 
    So I tested it with the following situation : 

    Classes MainWindow, MyThread and TestManager. 
    In MainWindow there is a signal that calls a slot in TestManager. In TestManager there is a signal that calls a slot in MainWindow. I put an instance ofTestManager in MainWindow. 
    In MainWIndow's constructor, I do the following : 

    testManager.moveToThread(MyThread::myThread);

    connect(this, SIGNAL(mainSignal()), &testManager, SLOT(onMainSignal()));
    connect(&testManager, SIGNAL(threadSignal()), this, SLOT(onThreadSignal()));





    And it works. Here the slot is not in the thread that creates the connection. The following also works : 





    connect(this, SIGNAL(mainSignal()), &testManager, SLOT(onMainSignal()));
    testManager.moveToThread(MyThread::myThread);
    connect(&testManager, SIGNAL(threadSignal()), this, SLOT(onThreadSignal()));



    and 



    connect(this, SIGNAL(mainSignal()), &testManager, SLOT(onMainSignal()));
    connect(&testManager, SIGNAL(threadSignal()), this, SLOT(onThreadSignal()));

    testManager.moveToThread(MyThread::myThread);



    Just wondering. 



    Patric 



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