From: Christian Hergert <chergert@redhat.com>
Date: Fri, 10 Jan 2020 23:00:10 +0000 (-0800)
Subject: gtkmain: short-circuit gtk_main_sync() where no display
X-Git-Tag: archive/raspbian/4.4.1+ds1-2+rpi1~1^2~321^2^2~355^2~1
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=4a7f68e79e0c2a56eb1297e72a33cbdcd68418ba;p=gtk4.git

gtkmain: short-circuit gtk_main_sync() where no display

If there is no display, we will hit the slow path here which
can introduce long latencies in unit tests. This checks for
a NULL list of displays and simply short-circuits.
---

diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index fe5868a95d..93fea8540a 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1081,6 +1081,9 @@ gtk_main_sync (void)
   
   /* Try storing all clipboard data we have */
   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
+  if (displays == NULL)
+    return;
+
   cancel = g_cancellable_new ();
 
   for (l = displays; l; l = l->next)