[mutter] Don't call IceCloseConnection() behind libSM's back

[Owen Taylor <otaylor src gnome org>]

commit 1d827caaafa5853fd57a3f8953cfd1c527dd9afa
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Thu Dec 17 16:20:18 2009 -0500

    Don't call IceCloseConnection() behind libSM's back
    
    The ICE connection is opened by libSM; we can't just close it when
    we get an IOError on the ICE connection; instead call SmcCloseConnection()
    and mark the connection as closed. This will prevent a segfault if we
    exit out of the metacity main loop and get to meta_finalize().
    
    https://bugzilla.gnome.org/show_bug.cgi?id=604867

 src/core/session.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/src/core/session.c b/src/core/session.c
index 34bd8c3..a21cdbe 100644
--- a/src/core/session.c
+++ b/src/core/session.c
@@ -84,6 +84,7 @@ static char*       load_state         (const char *previous_save_file);
 static void        regenerate_save_file (void);
 static const char* full_save_file       (void);
 static void        warn_about_lame_clients_and_finish_interact (gboolean shutdown);
+static void        disconnect         (void);
 
 /* This is called when data is available on an ICE connection.  */
 static gboolean
@@ -106,9 +107,12 @@ process_ice_messages (GIOChannel *channel,
       IcePointer context = IceGetConnectionContext (connection);
 #endif
       
-      /* We were disconnected */
-      IceSetShutdownNegotiation (connection, False);
-      IceCloseConnection (connection);
+      /* We were disconnected; close our connection to the
+       * session manager, this will result in the ICE connection
+       * being cleaned up, since it is owned by libSM.
+       */
+      disconnect ();
+      meta_quit (META_EXIT_SUCCESS);
 
       return FALSE;
     }