[glib] GApplication: Avoid getting the default context repeatidly

[Xavier Claessens <xclaesse src gnome org>]

commit aa9a33b0dabb68a6586956d6d4aa0c861e534321
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Wed Dec 16 11:34:41 2015 -0500

    GApplication: Avoid getting the default context repeatidly
    
    This avoids getting a global lock on every main loop iteration.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=759554

 gio/gapplication.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/gio/gapplication.c b/gio/gapplication.c
index 05178e2..e24ab69 100644
--- a/gio/gapplication.c
+++ b/gio/gapplication.c
@@ -2269,6 +2269,7 @@ g_application_run (GApplication  *application,
 {
   gchar **arguments;
   int status;
+  GMainContext *context;
   gboolean acquired_context;
 
   g_return_val_if_fail (G_IS_APPLICATION (application), 1);
@@ -2297,7 +2298,8 @@ g_application_run (GApplication  *application,
       g_free (prgname);
     }
 
-  acquired_context = g_main_context_acquire (NULL);
+  context = g_main_context_default ();
+  acquired_context = g_main_context_acquire (context);
   g_return_val_if_fail (acquired_context, 0);
 
   if (!G_APPLICATION_GET_CLASS (application)
@@ -2331,7 +2333,7 @@ g_application_run (GApplication  *application,
       if (application->priv->must_quit_now)
         break;
 
-      g_main_context_iteration (NULL, TRUE);
+      g_main_context_iteration (context, TRUE);
       status = 0;
     }
 
@@ -2355,10 +2357,10 @@ g_application_run (GApplication  *application,
   g_settings_sync ();
 
   if (!application->priv->must_quit_now)
-    while (g_main_context_iteration (NULL, FALSE))
+    while (g_main_context_iteration (context, FALSE))
       ;
 
-  g_main_context_release (NULL);
+  g_main_context_release (context);
 
   return status;
 }