Merge lp:~desrt/libdbusmenu/no-reply-requested into lp:libdbusmenu/0.6

[Allison Karlitskaya]

glib client: don't request a reply on send_event() if nobody is listening for it

Coupled with an upcoming GDBus patch this will halve the amount of D-Bus traffic generated by all the "opened" and "closed" signals transmitted by the HUD when searching (because the replies won't be sent).

This is one of many partial fixes for lp:957022

[Ted Gould (ted)]

review: Approve

=== modified file 'libdbusmenu-glib/client.c'
--- libdbusmenu-glib/client.c	2012-03-01 16:55:24 +0000
+++ libdbusmenu-glib/client.c	2012-03-16 17:30:47 +0000
@@ -1540,6 +1540,18 @@
 		variant = g_variant_new_int32(0);
 	}
 
+	/* Don't bother with the reply handling if nobody is watching... */
+	if (!g_signal_has_handler_pending (client, signals[EVENT_RESULT], 0, TRUE)) {
+		g_dbus_proxy_call(priv->menuproxy,
+		                  "Event",
+		                  g_variant_new("(isvu)", id, name, variant, timestamp),
+		                  G_DBUS_CALL_FLAGS_NONE,
+		                  1000,   /* timeout */
+		                  NULL, /* cancellable */
+		                  NULL, NULL);
+		return;
+	}
+
 	event_data_t * edata = g_new0(event_data_t, 1);
 	edata->client = client;
 	g_object_ref(client);