Gjs: Gio.IOErrorEnum: Invalid socket, not initialized

[chris.willing (Christoph Willing)]

When trying to use a Gio.Socket, I see this error. Simplified code to demonstrate the issue is:

#!/usr/bin/env gjs
const { Gio } = imports.gi;
var socket = new Gio.Socket({ "family":Gio.SocketFamily.IPV4, "type":Gio.SocketType.DATAGRAM, "protocol":Gio.SocketProtocol.UDP});
var sa = Gio.InetSocketAddress.new_from_string('192.168.8.128', 48995);
socket.bind(sa, true);

The problem is in socket.bind() - commenting it out removes the error.

The full error is:

chris@d8:~/src/devicefinder-gjs$ ./utest.js 

(gjs:113277): Gjs-CRITICAL **: 19:13:42.766: JS ERROR: Gio.IOErrorEnum: Invalid socket, not initialized
@./utest.js:5:8


(gjs:113277): Gjs-CRITICAL **: 19:13:42.766: Script ./utest.js threw an exception

Could someone point out the obvious mistake please?

Thanks,
chris

[rmnvgr (Romain)]

As the error indicates, the socket is not initialized. Gio.Socket implements the Gio.Initable interface, so you have to initialize it after construction with the init() method.

[chris.willing (Christoph Willing)]

Thanks Romain, that removed the error.

Although the documentation does say that Gio.Socket inherits from Gio.Initable, I had overlooked it - something I’ll pay more attention to in the future.

chris