Re: [Vala] Combining async methods with external processes

[James Moschou <james moschou gmail com>]

On 22 November 2010 05:44, Abderrahim Kitouni <a kitouni gmail com> wrote:
> Hi,
>                   في ح، 21-11-2010 عند 16:03 +1030 ، كتب James Moschou:
> > Here's an incredibly pared back version of what I have:
> >
> >
> > class Task : Object {
> >     Pid _pid;
> >     Source _source;
> >     public async void run_async () {
> >         try {
> >             Process.spawn_async_with_pipes (null,
> >                                             {"whois", "www.google.com"},
> >                                             null,
> >                                             SpawnFlags.SEARCH_PATH |
> > SpawnFlags.DO_NOT_REAP_CHILD,
> >                                             null,
> >                                             out _pid,
> >                                             null,
> >                                             null,
> >                                             null);
> >
> >             _source = new GLibFixes.ChildWatchSource (_pid);
> >             _source.attach (null);
> >             _source.set_callback (run_async.callback);
>
> Just replace the three above lines with:
>              ChildWatch.add (_pid, (pid, status) => run_async.callback());
> and it won't segfault (and won't need fixes in GLib bindings either :-)
>
> >             yield;
> >         }
> >         catch (Error error) {
> >             stderr.printf ("%s\n", error.message);
> >         }
> >         Process.close_pid (_pid);
> >     }
> > }
>
> HTH,
> Abderrahim

Thanks a lot!