[Qt-interest] timers cannot be started from another thread

[Matthias Pospiech]

Thiago Macieira schrieb:
>   
>> If I change the timer to a pointer and construct it in the run() method,
>> then I get the error:
>>
>> QObject: Cannot create children for a parent that is in a different thread.
>> (Parent is GratingVariationShowMovie(0x1efe100), parent's thread is
>> QThread(0xe1
>> 7080), current thread is GratingVariationShowMovie(0x1efe100)
>>     
>
> That happens because you passed "this" as parent. And, like I explained above, 
> objects belong to the thread they were created in. This applies even to 
> classes derived from QThread: those objects belong to the main thread.
>
> You should either move the QThread to its own thread (i.e. moveToThread(this)) 
> or you should not use a parent for your QTimer.
>
>   
Ok, I moved it as a pointer to the run function without a parent in the 
constructor. But now the application crashes as soon as the signal is 
triggered:

ASSERT failure in QPersistentModelIndex::~QPersistentModelIndex: 
"persistent mod
el indexes corrupted", file kernel\qabstractitemmodel.cpp, line 475

this I can not debug, nor do I understant it...

Matthias