As I know, if it failed to lock lock file in wl_socket_lock(), it returns a
negative value and wl_display_add_socket_auto() will continue to try to add
socket with increased display number. In your case, it will try to create
socket with wayland-1.
Please check your compositor running with wayland
I am attempting to write a test compositor using libweston. I want to
run it in a window on GNOME Shell, so I am using the Wayland backend.
When I call wl_display_add_socket_auto, it fails with the error
message: unable to lock lockfile /run/user/1000/wayland-0.lock, maybe
another compositor is ru
