[Qt-interest] Interesting QThread problem

[Scott Aron Bloom]

Yes,

Set some type flag, and set it, then your working loop in your thread
could check for the flag and quit properly when detected.

I suggest you read a book on threading, its difficulties, and how to
solve them..

It sounds like you understand the Qt side but not the underlying science

Scott

-----Original Message-----
From: qt-interest-bounces at trolltech.com
[mailto:qt-interest-bounces at trolltech.com] On Behalf Of Yifei Li
Sent: Tuesday, November 23, 2010 2:46 PM
To: qt-interest at trolltech.com
Subject: Re: [Qt-interest] Interesting QThread problem

Thanks. Is there an alternative to terminate() ?

Yifei
On Nov 23, 2010, at 5:39 PM, Thiago Macieira wrote:

> On Tuesday, 23 de November de 2010 23:18:57 Yifei Li wrote:
>> The following code is a minimal example of what I'm trying to do.
Once the
>> plugin prints out one message, it will wait until 'Next' button is
clicked
>> to print out the next message. Try to terminate the execution by
clicking
>> 'Stop' and then start the execution.  You will notice the first
message is
>> printed out fine. But when you click on 'Next' button to print the
second
>> message, the whole app seems to deadlock.
> 
> That's to be expected. Calling QThread::terminate() is a forceful
termination 
> and will probably leave behind locked mutexes and other resources.
> 
> Solution: don't use terminate.
> -- 
> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>  Senior Product Manager - Nokia, Qt Development Frameworks
>      PGP/GPG: 0x6EF45358; fingerprint:
>      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
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