wayland: Dispatch pending events before entering poll

If we don't dispatch the pending events then we can enter poll with events
still requiring to be processed and which can then lead to us deadlocking
there.

diff --git a/gdk/wayland/gdkeventsource.c b/gdk/wayland/gdkeventsource.c
index 619ee872c1f1e4a365c33bf4be5497abd0f42629..9dda53a1ffbb9656788e59ec09f62a68c871a7c4 100644 (file)
--- a/gdk/wayland/gdkeventsource.c
+++ b/gdk/wayland/gdkeventsource.c
@@ -50,6 +50,9 @@ gdk_event_source_prepare(GSource *base, gint *timeout)
     return TRUE;
 
   if (wl_display_flush (display->wl_display) < 0)
+    g_error ("Error flushing display: %s", g_strerror (errno));
+
+  if (wl_display_dispatch_pending (display->wl_display) < 0)
     g_error ("Error dispatching display: %s", g_strerror (errno));
 
   return FALSE;