[gdm/multi-stack: 28/45] When one PAM conversation wins, stop the others



commit 3a5dd5f7ac6eabf35677969127db238bc57afb23
Author: Ray Strode <rstrode redhat com>
Date:   Tue Apr 21 10:25:18 2009 -0400

    When one PAM conversation wins, stop the others
    
    This doesn't work yet, it's still in progress code.

 daemon/gdm-session-direct.c |   64 ++++++++++++++++++++++++++++++-------------
 daemon/gdm-simple-slave.c   |    2 +-
 2 files changed, 46 insertions(+), 20 deletions(-)
---
diff --git a/daemon/gdm-session-direct.c b/daemon/gdm-session-direct.c
index 738267a..52a67c4 100644
--- a/daemon/gdm-session-direct.c
+++ b/daemon/gdm-session-direct.c
@@ -2258,6 +2258,40 @@ gdm_session_direct_open_session (GdmSession *session,
 }
 
 static void
+stop_all_other_conversations (GdmSessionDirect        *session,
+                              GdmSessionConversation  *conversation_to_keep)
+{
+        GHashTableIter iter;
+        gpointer key, value;
+
+        if (session->priv->conversations == NULL) {
+                return;
+        }
+
+        if (conversation_to_keep == NULL) {
+                g_debug ("GdmSessionDirect: Stopping all conversations");
+        } else {
+                g_debug ("GdmSessionDirect: Stopping all conversations "
+                         "except for %s", conversation_to_keep->service_name);
+        }
+
+        g_hash_table_iter_init (&iter, session->priv->conversations);
+        while (g_hash_table_iter_next (&iter, &key, &value)) {
+                GdmSessionConversation *conversation;
+
+                conversation = (GdmSessionConversation *) value;
+
+                if (conversation == conversation_to_keep) {
+                        continue;
+                }
+
+                stop_conversation (conversation);
+        }
+
+        g_hash_table_remove_all (session->priv->conversations);
+}
+
+static void
 gdm_session_direct_start_session (GdmSession *session,
                                   const char *service_name)
 {
@@ -2269,12 +2303,20 @@ gdm_session_direct_start_session (GdmSession *session,
         g_return_if_fail (session != NULL);
         g_return_if_fail (impl->priv->is_running == FALSE);
 
+        conversation = find_conversation_by_name (impl, service_name);
+
+        if (conversation == NULL) {
+                g_warning ("GdmSessionDirect: Tried to start session of "
+                           "nonexistent conversation %s", service_name);
+                return;
+        }
+
+        stop_all_other_conversations (impl, conversation);
+
         command = get_session_command (impl);
         program = g_strdup_printf (GDMCONFDIR "/Xsession \"%s\"", command);
         g_free (command);
 
-        conversation = find_conversation_by_name (impl, service_name);
-
         setup_session_environment (impl);
         send_environment (impl, conversation);
 
@@ -2285,23 +2327,7 @@ gdm_session_direct_start_session (GdmSession *session,
 static void
 stop_all_conversations (GdmSessionDirect *session)
 {
-        GHashTableIter iter;
-        gpointer key, value;
-
-        if (session->priv->conversations == NULL) {
-                return;
-        }
-
-        g_hash_table_iter_init (&iter, session->priv->conversations);
-        while (g_hash_table_iter_next (&iter, &key, &value)) {
-                GdmSessionConversation *conversation;
-
-                conversation = (GdmSessionConversation *) value;
-
-                stop_conversation (conversation);
-        }
-
-        g_hash_table_remove_all (session->priv->conversations);
+        stop_all_other_conversations (session, NULL);
 }
 
 static void
diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index 337718b..63ea82c 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -575,7 +575,7 @@ on_session_conversation_stopped (GdmSession     *session,
         gboolean res;
         g_debug ("GdmSimpleSlave: conversation stopped");
 
-        if (slave->priv->greeter_server != NULL) {
+        if (slave->priv->greeter != NULL) {
                 res = gdm_greeter_server_conversation_stopped (slave->priv->greeter_server,
                                                                service_name);
                 if (! res) {



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