> On 1 May 2019, at 10:34, Pekka Paalanen wrote:
>
> it is all just the normal Wayland protocol exchange but with a new
> interface of your own design. I'm not sure if there is a really
> minimal example, but I'll list at least some.
>
> One example of such private protocol extension is
> https://gitlab.freedesktop.org/wayland/weston/blob/master/protocol/weston-desktop-shell.xml
>
> The server-side implementation of it is in shell.c and the
> entrypoint to that is
> https://gitlab.freedesktop.org/wayland/weston/blob/master/desktop-shell/shell.c#L5143
>
>wl_global_create(ec->wl_display,
> _desktop_shell_interface, 1,
> shell, bind_desktop_shell)
>
> which installs the protocol extension in the compositor. You can
> see everything about the implementation by following all callbacks
> that get registered, starting with bind_desktop_shell().
>
> The privacy of the protocol extension, the installed wayland global
> really, is achieved in
> https://gitlab.freedesktop.org/wayland/weston/blob/master/desktop-shell/shell.c#L4366
>
>shell->child.client = weston_client_start(shell->compositor,
> shell->client);
>
> which creates the Wayland connection before forking the child
> process and bind_desktop_shell() then verifying the client trying
> to bind to the global is the client that was forked.
>
>
> The client-side implementation is in desktop-shell.c with the entry
> point at
> https://gitlab.freedesktop.org/wayland/weston/blob/master/clients/desktop-shell.c#L1392
>
>if (!strcmp(interface, "weston_desktop_shell")) {
>desktop->shell = display_bind(desktop->display,
> id,
> _desktop_shell_interface,
> 1);
>weston_desktop_shell_add_listener(desktop->shell,
> ,
> desktop);
I added a call to wl_global_create(). I also created a test client that calls
wl_registry_bind(), but my bind function doesn't seem to run, and
wl_registry_bind returns NULL. How can I resolve this?
(Is it OK to just pass the number 1 as the name parameter for wl_registry_bind?)
Regards
adlo
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