Re: [Gnome Shell Extensions] Reading from a socket with GJS --failureto read from Gio.InputStream

[gdfc <gdfc o2 pl>]

Where to file a report?


Dnia 5 sierpnia 2012 17:54 "Jasper St. Pierre" <jstpierre mecheye net> napisał(a):

> On Sun, Aug 5, 2012 at 11:53 AM, gdfc <gdfc o2 pl> wrote:
> > Thanks for your quick reply!
> > What do you mean by "(out caller-allocates) (array length=length)"? What would be the correct args for read() be?
> 
> There's nothing you can do right now. You're stuck. I'm sorry.
> 
> > Dnia 5 sierpnia 2012 17:17 "Jasper St. Pierre" <jstpierre mecheye net> napisał(a):
> >
> >> Hm, it seems the method is improperly annotated. It should be (out
> >> caller-allocates) (array length=length).
> >>
> >> On Sun, Aug 5, 2012 at 7:55 AM, gdfc <gdfc o2 pl> wrote:
> >> > Hello!
> >> >
> >> > I'm currently writing an extension for Gnome Shell using gjs and have to
> >> > read some gpsd data from a socket. I've gotten this far:
> >> >
> >> >             const Gio = imports.gi.Gio;
> >> >             let sockCl = new Gio.SocketClient();
> >> >             let sockCon = sockCl.connect_to_host("localhost:2947", null,
> >> >             null);
> >> >             let outStr = sockCon.get_output_stream();
> >> >             outStr.write('?WATCH={"enable":true,"json":true};', null);
> >> >             let inStr = sockCon.get_input_stream();
> >> >             let b = new Array(128);
> >> >             inStr.read(b, 1, null);
> >> >
> >> > However, the read method always fails with the following error:
> >> >
> >> >             Error: Argument 'buffer' (type void) may not be null
> >> >
> >> > I've tried all read* methods described in the only more or less current gjs
> >> > API reference I've found [1], but they all seem to have the same problem.
> >> > This is regardless of what type b is -- it can be an array, a string, a
> >> > number or even a function, but it doesn't get recognised as anything other
> >> > than null. I'm aware of [2] (this is the only web search result I've
> >> > stumbled upon), but it is of little help.
> >> >
> >> > So my question here: does anyone know a way to read from a socket in gjs?
> >> > It doesn't have to be Gio, any standard lib would do... I've tried some
> >> > Soup and GLib methods, but they don't seem to work either. In Gio, I do at
> >> > least get the OutputStream to write reliably...
> >> >
> >> > Any advice is highly appreciated. Thank you!
> >> >
> >> > BR
> >> >
> >> > gdfc
> >> >
> >> > [1] http://www.roojs.com/seed/gir-1.2-gtk-3.0/gjs/Gio.InputStream.html
> >> > [2] https://mail.gnome.org/archives/javascript-list/2012-January/msg00003.html
> >> > _______________________________________________
> >> > gnome-shell-list mailing list
> >> > gnome-shell-list gnome org
> >> > https://mail.gnome.org/mailman/listinfo/gnome-shell-list
> >>
> >>
> >>
> >>
> 
> 
> 
>