Michael 'Mickey' Lauer wrote:
> Thanks for your mails, I think the VAPI part is clear to me now.
> Unfortunately
> I still can't do the actual setting of the callback. I have:
>
>
> =========== gsm0710_p.h ===========
>
> typedef int (*gsm0710_context_at_command_callback)(struct
> gsm0710_context *ctx, const char *cmd);
> ...
> struct gsm0710_context
> {
> /* variables */
> ...
> gsm0710_context_at_command_callback at_command;
> ...
> }
>
> ========= gsm0710.vapi ===========
> [CCode (instance_pos = 0)]
> public delegate int AtCommandCallback( string cmd );
>
> ========= multiplexer.vala ==========
> public class Multiplexer : Object
> {
> Context ctx;
>
> public static int at_command_cb( Context ctx, char* command )
> {
> Multiplexer m = (Multiplexer) ctx.user_data;
> debug( "CB: atCommand %s", (string)command );
> return 1;
> }
>
> public Multiplexer( bool advanced, int framesize, string device, int
> portspeed )
> {
> debug( "Multiplexer created for mode %s, framesize %d, device %s
> @ %d", advanced? "advanced":"basic", framesize, device, portspeed );
> ctx = new Context();
> ctx.initialize();
>
> ctx.server = 1;
> ctx.mode = advanced? 1 : 0;
> ctx.frame_size = framesize;
> ctx.port_speed = portspeed;
>
> ctx.at_command = at_command_cb;
> }
> }
>
> I now get the following error:
>
> make[1]: Leaving directory `/local/pkg/fso/fso-gsm0710muxd'
> /usr/local/bin/valac -c --vapidir gsm0710 --pkg dbus-glib-1 --pkg
> gsm0710 --save-temps --basedir . src/consts.vala src/multiplexer.vala
> src/server.vala src/main.vala
> src/multiplexer.vala:53.9-53.38: error: Assignment: Cannot convert from
> `Multiplexer.at_command_cb' to `Gsm0710.Context.AtCommandCallback'
> ctx.at_command = at_command_cb;
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Compilation failed: 1 error(s), 0 warning(s)
>
> What am I missing?
>
> Cheers,
>
> Mickey.
> _______________________________________________
> Vala-list mailing list
> Vala-list@gnome.org
> http://mail.gnome.org/mailman/listinfo/vala-list
>
If you give it a different name ('AtCommandCallback' instead of
'at_command_callback') you should specify a 'cname'-attribute with the
original C name. And make the delegate static, as Jürg wrote, and pass
the context explicitly, since it is not intended as instance data
('this') but as callback source object.
-----------
[CCode (cname="gsm0710_context_at_command_callback")]
public static delegate int AtCommandCallback( Context ctx, string cmd );
-----------
public static int at_command_cb( Context ctx, string command )
{
Multiplexer m = (Multiplexer) ctx.user_data;
debug( "CB: atCommand %s", command );
return 1;
}
// ...
Regards,
Frederik
_______________________________________________
Vala-list mailing list
Vala-list@gnome.org
http://mail.gnome.org/mailman/listinfo/vala-list
