[PyQt] Problem with QFileSystemWatcher

[NARCISO, Rui]

Brilliant guys.
This indeed solved my problem:
       self.watchdog.setObjectName(QString("_qt_autotest_force_engine_poller"))

The only inconvenient is that I have a message printed to the screen:
QFileSystemWatcher: skipping native engine, using only polling engine

That I can't seem to get rid of ...  oh well ...

Cheers and thank you all of your help.

Rui


-----Message d'origine-----
De : pyqt-bounces at riverbankcomputing.com [mailto:pyqt-bounces at riverbankcomputing.com] De la part de Baz Walter
Envoyé : vendredi 10 décembre 2010 19:43
À : Hans-Peter Jansen
Cc : pyqt at riverbankcomputing.com
Objet : Re: [PyQt] Problem with QFileSystemWatcher

On 10/12/10 18:10, Hans-Peter Jansen wrote:
> Dear Rui,
>
> On Friday 10 December 2010, 11:08:50 NARCISO, Rui wrote:
>> When I use absolute paths (os.path.abspath) or real paths
>> (os.path.realpath) or even relative paths (../../toto) it doesn't
>> work. It only works when I use only the file name.
>
> Works fine here with absolute paths. Consequently, it triggers all four connected signals, if I touch the watched file in my home.
>
> Guys, if you rely on some special file argument, why can't you provide a global variable or even better, a command line parameter.
>
>> I don't think permissions are the problem because I tried the with
>> the same file in the current folder and then in the parent folder and
>> it works for the first and it doesn't for the latter...
>>
>> I'm on a Linux workstation accessing hard drives physically stored in
>> a data center elsewhere. Can this be the problem ? I would think not
>> because if it works for a file in the current folder it should work
>> for the parent folder as well since both are in the same hard
>> drive/filer ...
>
> My home is NFS, too. If I remember correctly, Qt uses simple timer based polling for the file system watcher since being multi-platform they cannot rely on any special OS kernel/filesystem feature.
>
>> Any insight anyone ?
>
> Yes, you're using ancient versions of everything. This is most probably,  what does harm in your case.

the problem appears to be the one detailed in this thread:

     http://lists.trolltech.com/qt-interest/2008-02/thread00553-0.html

there is a 'workaround' suggested there, but it is somewhat hackish, and 
may not be available in the version of qt the op is using.

_______________________________________________
PyQt mailing list    PyQt at riverbankcomputing.com
http://www.riverbankcomputing.com/mailman/listinfo/pyqt

This mail has originated outside your organization, either from an external partner or the Global Internet.
Keep this in mind if you answer this message.



The information in this e-mail is confidential. The contents may not be disclosed or used by anyone other than the addressee. Access to this e-mail by anyone else is unauthorised.
If you are not the intended recipient, please notify Airbus immediately and delete this e-mail.
Airbus cannot accept any responsibility for the accuracy or completeness of this e-mail as it has been sent over public networks. If you have any concerns over the content of this message or its Accuracy or Integrity, please contact Airbus immediately.
All outgoing e-mails from Airbus are checked using regularly updated virus scanning software but you should take whatever measures you deem to be appropriate to ensure that this message and any attachments are virus free.