[PyQt] pausing and resuming QThread tasks

[Scott Frankel]

Hi Stefano,

My working example code is attached.  Glad you're finding it useful.

Scott


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On Apr 18, 2010, at 9:54 PM, Massimo Di Stefano wrote:

> Hi,
>
> i'm tring to modify the code you pasted
> using the suggested modification, but i'm not able to run it
> with a "working" pause action.
>
> Can you point me to a working version,
> i'm tring to learn from it.
> It is a cool example to learn how to use thread in PyQt
>
> Thanks a lot!!!
>
> Massimo.
>
>
> Il giorno 15/apr/2010, alle ore 22.24, Russell Valentine ha scritto:
>
>> What about just put this in your for loop. Then the pause/resume  
>> button
>> or whatever just toggles self.paused? That seems good to me.
>>
>> while(self.paused):
>> QThread.msleep(100)
>> 	
>>
>> On 04/15/10 13:53, Scott Frankel wrote:
>>>
>>> Hi all,
>>>
>>> What's the best way to pause and resume processing in QThread  
>>> objects?
>>>
>>> I've built a small test app that sets up a Python os.walk()  
>>> process that
>>> I'd like to be able to pause and restart from where it left off.   
>>> The
>>> documentation on QWaitCondition looks promising, though my app  
>>> appears
>>> to hang on this line (line 69):
>>>
>>>   self.condition.wait(self.mutex)
>>>
>>> Also, in testing for a paused job in my processing method (line  
>>> 104),
>>> does a waiting thread resume from where it left off?  Or do I need  
>>> to
>>> keep track of where it is myself and restart it from there?
>>>
>>> Thanks in advance!
>>> Scott
>>>
>>>
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