Le mercredi 21 septembre 2016 à 15:21 +0100, Baptiste Gelez a écrit :
> Hi everyone,
>
> I'm creating a little app that should be able to communicate with
> other
> processes (both sending and receiving messages). I first tried to do
> it
> by launching child processes and sending/receving messages with
> stdout/stdin. But I didn't find how to receive a signal when the
> child
> process is writing on his stdout.
>
> Then, I tried with websockets. I use the libsoup solution. This is
> my
> code :
>
> const uint16 port = 8080;
>
> InetAddress address = new InetAddress.loopback (SocketFamily.IPV4);
> InetSocketAddress inetaddress = new InetSocketAddress (address,
> port);
>
> GLib.Socket socket = new GLib.Socket (SocketFamily.IPV4,
> SocketType.STREAM, SocketProtocol.TCP);
> socket.bind (inetaddress, true);
> socket.listen ();
>
> Server serv = new Server (null);
> serv.add_websocket_handler (null, null, null, (server, conn, path,
> client) => {
> conn.message.connect ((type, message) => {
> // receive messages en responds ...
> });
> });
> serv.listen_socket (socket, 0);
>
> But when I try to connect to ws://localhost (with JavaScript) it
> tells
> me "Firefox can't establish a connection with the server at the
> address
> ws://localhost/."
>
> Valadoc and libsoup C documentation are really poor on Websockets.
> Can
> you help me to find where is the problem, and how to solve it,
> please.
> Or at least, giving me some example codes of websocket servers with
> libsoup (I can't find any). Thank you.
>
> Baptiste.
> _______________________________________________
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You should try the 'ws://localhost:8080/' URI instead. It's also
necessary to run a GLib.MainLoop.
Also, you don't need to bind a socket manually if you only want to
listen on the loopback interface, 'listen_local' does that already.
Here's a fully working example:
using GLib;
using Soup;
var serv = new Server (null);
serv.add_websocket_handler (null, null, null, (server, conn, path,
client) => {
conn.message.connect ((type, message) => {
// receive messages en responds ...
});
});
serv.listen_local(8080, 0);
new MainLoop ().run ();
Then connect to 'ws://localhost:8080/'.
--
Guillaume Poirier-Morency <[email protected]>
Étudiant au baccalauréat en Informatique à l'Université de Montréal
Chercheur boursier à l'IRIC
Mon blog: https://arteymix.github.io/
Clé PGP: B1AD6EA5
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