Re: [Vala] Combining async methods with external processes

[Abderrahim Kitouni <a kitouni gmail com>]

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