Hello.
I am trying to handle a socketcan device in GTK.
I would like to accomplish the following:
* create a socketcan device
* get notified when it is ready to read
* handle errors when it becomes unavailable. (possibly restart it)
I am trying the following:
int sfd = try_connect("can0"); //creates an socketcan fd
if(sfd!=-1){
channel = g_io_channel_unix_new(sfd);
g_io_channel_set_encoding( channel, NULL, NULL );
g_io_channel_set_buffered( channel, FALSE );
g_io_add_watch(channel,G_IO_IN|G_IO_PRI,do_can_stuff,NULL);
g_io_add_watch(channel,G_IO_ERR|G_IO_HUP|G_IO_NVAL,do_can_error,NULL);
}
....
gboolean do_can_error( GIOChannel *source, GIOCondition condition,
gpointer data){
g_io_channel_shutdown(source,FALSE,NULL);
return(FALSE);
}
gboolean do_can_stuff( GIOChannel *source, GIOCondition condition,
gpointer data){
int sfd = g_io_channel_unix_get_fd(source);
... do some binary reading from sfd
return(TRUE);
}
First off, can I accomplish what i want with GIO? Secondly, when i run
the above code, and remove the socketcan device, CPU usage skyrockets.
What causes this?
_______________________________________________
gtk-list mailing list
gtk-list@xxxxxxxxx
http://mail.gnome.org/mailman/listinfo/gtk-list
