[Qt-interest] Qt4 & fork()

[wim.delvaux at adaptiveplanet.com]

Compatible with Qt : Yes 
Portable : No

Difference with QProcess : AFAIK, QProcess is a portable Fork/Exec 
alternative, fork allows  you to make a clone of the current processes. This 
is generally done for servers needing to do some - temporary - long term 
special work for some client. all variables and state and files are 'copied' 
over to the forked process so that this process can do things just like the 
program that forked it.  QProcess does not allow to do that. You need to use 
threads for that in Qt.  This generally requires use of synchronization 
methods and locking methods etc.

However in MOST cases you just use qprocess ...

HTH
W

On Thursday 04 December 2008 04:52:34 Rick Vernam wrote:
> On Wednesday 03 December 2008 09:37:00 pm Miguel Cardenas wrote:
> > Cool, that's what I need, but I have still a doubt, is it only for Qt
> > applications
>
> no.
>
> > or it may launch any application, particularly a text console
> > program...
>
> yes, and can even communicate via normal IPC with non-Qt apps.
> I don't remember the details, but I remember using pipe & dup, things like
> that, in a C-based command line app...and a Qt app to invoke & communicate.
>
> > Thanks!
> >
> > On Wed, Dec 3, 2008 at 8:26 PM, Manuel Fiorelli
> >
> > <manuel.fiorelli at gmail.com>wrote:
> > > I cannot answer your questions, but in my opinion you should look at
> > > the class QProcess, which is "
> > >
> > > used to start external programs and to communicate with them"
> > >
> > >
> > > Manuel Fiorelli
> > >
> > >
> > >
> > > _______________________________________________
> > > Qt-interest mailing list
> > > Qt-interest at trolltech.com
> > > http://lists.trolltech.com/mailman/listinfo/qt-interest
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest