Re: maybe known, maybe not...

[Gary Kline <kline thought org>]

On Sun, Jan 08, 2012 at 01:55:16PM +0000, jcupitt gmail com wrote:
> Date: Sun, 8 Jan 2012 13:55:16 +0000
> From: jcupitt gmail com
> Subject: Re: maybe known, maybe not...
> To: Gary Kline <kline thought org>
> Cc: GTK Devel List <gtk-app-devel-list gnome org>
>
> Hi Gary,
>
> On 8 January 2012 02:49, Gary Kline <kline thought org> wrote:
> > o am trying to have a "run" button fork off a new gvim and increase
> > a global counter after the first gvim is closed.  my main gtk goes
> > dark and nothing responds in this case.  i don't know if every
>
> If you do this:
>
>   system("gvim stuff.txt");
>
> system() will block until the vim exits, and while system() is
> blocked, your gtk application will not be handling events (like
> repaint).
>
> A simple fix is to append a "&" so that the vim runs in the background:
>
>   system("gvim stuff.txt &");
>
> Now the system() will return immediately and your gtk program can
> carry on working while the gvim runs.

        i'll try it, thanks.

        i also have two "sleep(1);" in the code.  i'm trying to slow
        the program down, if i remember correctly.  i'm still too
        new to gtk, and so am almost coding blind.

        [[i do have what i want; but with the main application dark,
        i'm stuck!]]

> If you want something to stop the user launching 100s of gvims you
> need to do a bit more work.

        hm.  no, i wait for the .talk.N.txt.swp file to be unlinked
        before any new gvim can fork-exec.   defensive work is
        ahead.

        gary
> John

-- 
 Gary Kline  kline thought org  http://www.thought.org  Public Service Unix
           Journey Toward the Dawn, E-Book: http://www.thought.org
          The 8.57a release of Jottings: http://jottings.thought.org
             Twenty-five years of service to the Unix community.