[mutter] wayland/output: Flush clients after creating wl_output global

[Jonas Ådahl <jadahl src gnome org>]

commit 2a318eb3f23267eb3688c74331763623b88836f5
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Aug 18 14:16:22 2017 +0800

    wayland/output: Flush clients after creating wl_output global
    
    In order to give the clients the best chance to bind the wl_output
    before we later remove it (for example on fast hot plugs or in the test
    suite), flush the client sockets after creating the global.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730551

 src/wayland/meta-wayland-outputs.c |    3 +++
 src/wayland/meta-wayland.c         |    6 ++++++
 src/wayland/meta-wayland.h         |    2 ++
 3 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/src/wayland/meta-wayland-outputs.c b/src/wayland/meta-wayland-outputs.c
index 7cb10f9..db8d240 100644
--- a/src/wayland/meta-wayland-outputs.c
+++ b/src/wayland/meta-wayland-outputs.c
@@ -307,6 +307,8 @@ static MetaWaylandOutput *
 meta_wayland_output_new (MetaWaylandCompositor *compositor,
                          MetaLogicalMonitor    *logical_monitor)
 {
+  MetaWaylandCompositor *wayland_compositor =
+    meta_wayland_compositor_get_default ();
   MetaWaylandOutput *wayland_output;
 
   wayland_output = g_object_new (META_TYPE_WAYLAND_OUTPUT, NULL);
@@ -314,6 +316,7 @@ meta_wayland_output_new (MetaWaylandCompositor *compositor,
                                              &wl_output_interface,
                                              META_WL_OUTPUT_VERSION,
                                              wayland_output, bind_output);
+  meta_wayland_compositor_flush_clients (wayland_compositor);
   meta_wayland_output_set_logical_monitor (wayland_output, logical_monitor);
 
   return wayland_output;
diff --git a/src/wayland/meta-wayland.c b/src/wayland/meta-wayland.c
index 414c7fb..9650882 100644
--- a/src/wayland/meta-wayland.c
+++ b/src/wayland/meta-wayland.c
@@ -445,3 +445,9 @@ meta_wayland_compositor_is_shortcuts_inhibited (MetaWaylandCompositor *composito
 
   return FALSE;
 }
+
+void
+meta_wayland_compositor_flush_clients (MetaWaylandCompositor *compositor)
+{
+  wl_display_flush_clients (compositor->wayland_display);
+}
diff --git a/src/wayland/meta-wayland.h b/src/wayland/meta-wayland.h
index 95e796e..d5795c1 100644
--- a/src/wayland/meta-wayland.h
+++ b/src/wayland/meta-wayland.h
@@ -63,5 +63,7 @@ void                    meta_wayland_compositor_restore_shortcuts      (MetaWayl
 gboolean                meta_wayland_compositor_is_shortcuts_inhibited (MetaWaylandCompositor *compositor,
                                                                         ClutterInputDevice    *source);
 
+void                    meta_wayland_compositor_flush_clients (MetaWaylandCompositor *compositor);
+
 #endif