wayland: Handle dispatch failing in a couple of more places

Without doing this, we'll end up with risking GTK processes sitting
eating 100% CPU instead of just exit(1):ing.

2 files changed, 18 insertions, 2 deletions

diff --git a/gdk/wayland/gdkpopup-wayland.c b/gdk/wayland/gdkpopup-wayland.c
index 652cac8ef7..125e70e638 100644
--- a/gdk/wayland/gdkpopup-wayland.c
+++ b/gdk/wayland/gdkpopup-wayland.c
@@ -1388,7 +1388,15 @@ gdk_wayland_surface_present_popup (GdkWaylandPopup *wayland_popup,
     }
 
   while (wayland_popup->display_server.xdg_popup && !is_relayout_finished (surface))
-    wl_display_dispatch_queue (display_wayland->wl_display, wayland_surface->event_queue);
+    {
+      if (wl_display_dispatch_queue (display_wayland->wl_display,
+                                     wayland_surface->event_queue) == -1)
+        {
+          g_message ("Error %d (%s) dispatching to Wayland display.",
+                     errno, g_strerror (errno));
+          _exit (1);
+        }
+    }
 
   if (wayland_popup->display_server.xdg_popup)
     {
diff --git a/gdk/wayland/gdktoplevel-wayland.c b/gdk/wayland/gdktoplevel-wayland.c
index bdaca587f9..7a74967c8d 100644
--- a/gdk/wayland/gdktoplevel-wayland.c
+++ b/gdk/wayland/gdktoplevel-wayland.c
@@ -2119,7 +2119,15 @@ gdk_wayland_toplevel_focus (GdkToplevel *toplevel,
           xdg_activation_token_v1_commit (token);
 
           while (startup_id == NULL)
-            wl_display_dispatch_queue (display_wayland->wl_display, event_queue);
+            {
+              if (wl_display_dispatch_queue (display_wayland->wl_display,
+                                             event_queue) == -1)
+                {
+                  g_message ("Error %d (%s) dispatching to Wayland display.",
+                             errno, g_strerror (errno));
+                  _exit (1);
+                }
+            }
 
           xdg_activation_token_v1_destroy (token);
           wl_event_queue_destroy (event_queue);