The errno is set to EAGAIN when there are undispatched events, according to L1066 of wayland-client.c. --- src/wayland-client.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/wayland-client.c b/src/wayland-client.c index 04d988b..d043459 100644 --- a/src/wayland-client.c +++ b/src/wayland-client.c @@ -1087,7 +1087,7 @@ wl_display_prepare_read_queue(struct wl_display *display, * calls wl_display_read_events(), no other thread will read from the * file descriptor. This only succeeds if the event queue is empty * though, and if there are undispatched events in the queue, -1 is - * returned and errno set to EBUSY. + * returned and errno set to EAGAIN. * * If a thread successfully calls wl_display_prepare_read(), it must * either call wl_display_read_events() when it's ready or cancel the -- 1.8.3.4 _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
