[gdm-list] Question on block display during login

[Halton Huo <halton huo gmail com>]

[If you're not interested in multi-seat and multi-display feature,
please ignore this email]

Ray,

You added the code to block session request during login. The code seems
not executed with my use, could you give me a scenario? 

Thanks,
Halton.

----------------------
$git show 5875501cfca9d30bd76851750ee342b92e0f328f
commit 5875501cfca9d30bd76851750ee342b92e0f328f
Author: Ray Strode <rstrode redhat com>
Date:   Tue Jun 23 22:52:32 2009 -0400

    Make slave ask factory to ignore requests at login
    
    The slave sets the hint on its display during login that
    it's going to be opening a session on it soon, so ConsoleKit
    requests should be ignored.

diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index a3b4141..b7de4bc 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -374,6 +374,10 @@ start_session_timeout (GdmSimpleSlave *slave)
                 goto out;
         }
 
+        /* Defer requests to use this display from ConsoleKit
+         * for the time being
+         */
+        gdm_slave_block_console_session_requests_on_display (GDM_SLAVE
(slave));
         stop_greeter (slave);
 
         auth_file = NULL;
@@ -388,6 +392,7 @@ start_session_timeout (GdmSimpleSlave *slave)
         g_free (auth_file);
 
         gdm_session_start_session (GDM_SESSION (slave->priv->session));
+        gdm_slave_unblock_console_session_requests_on_display
(GDM_SLAVE (slave));
  out:
         slave->priv->start_session_id = 0;
         return FALSE;