[Qt-interest] QFile* threads

[_h_]

Hi Thiago Macieira,
Thanks for information.
Can you please suggest how can I reduce these many threads?
My application uses more than 20 QFileDialog object pointers (why
pointer? because I want to persist the directoy/file filters/file
browsed info within that instance, so), and if I open and close all
these file broswers one by one, then I can see about 20 threads
running. So I wanted to reduce these many threads.
Can you please suggest nice way to achieve this?
Thank you.



On Fri, Jul 24, 2009 at 4:50 PM, Thiago
Macieira<thiago.macieira at trolltech.com> wrote:
> Em Sexta-feira 24 Julho 2009, às 12:26:03, _h_ escreveu:
>> Hi,
>> In one of my qt application I am using multiple instance of
>> QFileDialog by taking object pointer.
>> When observing process stack of this application, it shows following...
>>
>> Thread 3 (Thread 183630768 (LWP 10648)):
>> #0 0x008e348d in pthread_cond_wait@@GLIBC_2.3.2 ()
>> #1 0x02a34178 in QWaitCondition::wait ()
>> #2 0x06bbbced in QFileSystemModel::sort ()
>> #3 0x02a335a0 in QThread::setPriority ()
>> #4 0x008e0d78 in start_thread () from /lib/tls/libpthread.so.0
>> #5 0x05e613fa in clone () from /lib/tls/libc.so.6
>> Thread 2 (Thread 173140912 (LWP 10649)):
>> #0 0x05e5a757 in ___newselect_nocancel () from /lib/tls/libc.so.6
>> #1 0x02b55bbf in QEventDispatcherUNIX::select ()
>> #2 0x02b56c50 in QEventDispatcherUNIXPrivate::doSelect ()
>> #3 0x02b57117 in QEventDispatcherUNIX::processEvents ()
>> #4 0x02b26b6d in QEventLoop::processEvents ()
>> #5 0x02b26eed in QEventLoop::exec ()
>> #6 0x02a30087 in QThread::exec ()
>> #7 0x02b0b91e in QFSFileEngine::rmdir ()
>> #8 0x02a335a0 in QThread::setPriority ()
>> #9 0x008e0d78 in start_thread () from /lib/tls/libpthread.so.0
>> #10 0x05e613fa in clone () from /lib/tls/libc.so.6
>>
>> Can you please let me know how can I stop these threads?
>
> Those threads are created by the QFileDialog -- more specifically, by
> QFileSystemModel. You can't stop them.
>
> --
> Thiago Macieira - thiago.macieira (AT) nokia.com
>  Senior Product Manager - Nokia, Qt Software
>     Sandakerveien 116, NO-0402 Oslo, Norway
>
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