Re: Fork with gtk+-2.0

["Alphex K." <alphex crew org ru>]

On Tue, 06 Jan 2004 09:39:12 +0100
Günther Rapp <guenther@rapp-informatik.de> wrote:

> "Alphex K." schrieb:
> > 
> > >On Mon, 5 Jan 2004 15:04:15 +0300
> > >"Alphex K." <alphex@crew.org.ru> wrote:
> > 
> > >> pid_t pid;
> > >> pid = fork();
> > >>
> > >> if ((pid=fork())==0)
> > >>      execlp("/bin/xvkbd", "-geometry 800x185-0-0", NULL);
> > >> else
> > >>      g_print("Fork failed\n");
> > >> }
> > 
> > >You've left out a lot of details. You need to register a singal handler for
> > >SIGCHLD. If you want to communitate with the child process, you have to setup
> > >pipes etc.
> > 
> > >It's better to use one of g_spawn_async or g_spawn_async_with_pipes or
> > >g_spawn_command_line_async. They take care of a lot of the details for you.
> > 
> > >Roland
> > So. I'm think that in my code I can use standart unix non named pipes, if
> > I create it,ofcouse I'm must use GLib functions to get platform independency,
> > but I'm don't need for it ;-)
> 
>  I also have the same problems with fork I only need native unix/linux
> fork like done the last 20 years.
>  I figured out that the fork system call does not work with threads I
> dont know why so long I found
>  no reason what happens.
I'm think that you have troubles in your source code 
> If I do not start the thread the same code
> works well.
I'm think that U must use : a) only fork(); b) only threads,
because it true unix way I think ;-)
> Using the system call
>  I have no problem to start a second task but then I dont have the
>  process id to send a signal when the
>  first process exits.
So use an another variable to fork() , it may work
> I also do not need pipes and stuff like this I
> communicate with shared memory.
so, it rules ;-)
>  By this way setting up named pipes for sync communications is really
> easy and do not need calls I dont know
>  what happens behind
in this processes U can use a non named pipes , if U want I can write how it 
to do
> > 
> > --
> > Alphex Kaanoken
> > Senior developer of Crew IT research labs
> > web: http://crew.org.ru
> > mailto:Alphex@Crew.Org.RU
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list@gnome.org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> 
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-- 
Alphex Kaanoken
Senior developer of Crew IT research labs
web: http://crew.org.ru
mailto:Alphex@Crew.Org.RU