[gdm/multi-stack: 1/49] Drop session "Open" in favor of "StartConversation"



commit 92a560913b1c587b79e5ebe63f90dfbea234a7d1
Author: Ray Strode <rstrode redhat com>
Date:   Fri Jan 16 11:00:08 2009 -0500

    Drop session "Open" in favor of "StartConversation"
    
    We want to eventually support having multiple
    simultaneous PAM conversations in one login
    screen (so, e.g., username/password, smart card, and
    fingerprint all work at the same time).
    
    This commit refactors the session code to be in terms
    of a conversation object.  With this change, it should
    be easier later to have multiple conversation objects.
    
    The conversation is named by the pam service the login
    screen is talking to.

 daemon/gdm-factory-slave.c      |   13 +-
 daemon/gdm-product-slave.c      |   47 ++++--
 daemon/gdm-session-direct.c     |  322 ++++++++++++++++++++++++---------------
 daemon/gdm-session-private.h    |    3 +-
 daemon/gdm-session-relay.c      |   29 +++--
 daemon/gdm-session-worker-job.c |    7 +
 daemon/gdm-session-worker-job.h |    2 +
 daemon/gdm-session.c            |   20 ++-
 daemon/gdm-session.h            |    9 +-
 daemon/gdm-simple-slave.c       |    3 -
 daemon/test-session.c           |   13 +-
 11 files changed, 293 insertions(+), 175 deletions(-)
---
diff --git a/daemon/gdm-factory-slave.c b/daemon/gdm-factory-slave.c
index d09c913..6497293 100644
--- a/daemon/gdm-factory-slave.c
+++ b/daemon/gdm-factory-slave.c
@@ -180,10 +180,11 @@ on_session_secret_info_query (GdmSession      *session,
 }
 
 static void
-on_session_opened (GdmSession      *session,
-                   GdmFactorySlave *slave)
+on_session_conversation_started (GdmSession      *session,
+                                 GdmFactorySlave *slave,
+                                 const char      *service_name)
 {
-        g_debug ("GdmFactorySlave:  session opened");
+        g_debug ("GdmFactorySlave:  session conversation started");
 
         gdm_greeter_server_ready (slave->priv->greeter_server);
 }
@@ -367,7 +368,7 @@ on_session_relay_connected (GdmSessionRelay *session,
 {
         g_debug ("GdmFactorySlave: Relay Connected");
 
-        gdm_session_open (GDM_SESSION (slave->priv->session));
+        gdm_session_start_conversation (GDM_SESSION (slave->priv->session), "gdm");
 }
 
 static void
@@ -694,8 +695,8 @@ gdm_factory_slave_start (GdmSlave *slave)
 
         GDM_FACTORY_SLAVE (slave)->priv->session = gdm_session_relay_new ();
         g_signal_connect (GDM_FACTORY_SLAVE (slave)->priv->session,
-                          "opened",
-                          G_CALLBACK (on_session_opened),
+                          "conversation-started",
+                          G_CALLBACK (on_session_conversation_started),
                           slave);
         g_signal_connect (GDM_FACTORY_SLAVE (slave)->priv->session,
                           "setup-complete",
diff --git a/daemon/gdm-product-slave.c b/daemon/gdm-product-slave.c
index 9adcb09..15a2820 100644
--- a/daemon/gdm-product-slave.c
+++ b/daemon/gdm-product-slave.c
@@ -246,19 +246,21 @@ relay_session_started (GdmProductSlave *slave,
 }
 
 static void
-relay_session_opened (GdmProductSlave *slave)
+relay_session_conversation_started (GdmProductSlave *slave,
+                                    const char      *service_name)
 {
-        send_dbus_void_method (slave->priv->session_relay_connection,
-                               "Opened");
+        send_dbus_string_method (slave->priv->session_relay_connection,
+                                 "ConversationStarted", service_name);
 }
 
 static void
-on_session_opened (GdmSession      *session,
-                   GdmProductSlave *slave)
+on_session_conversation_started (GdmSession      *session,
+                                 const char      *service_name,
+                                 GdmProductSlave *slave)
 {
-        g_debug ("GdmProductSlave: session opened");
+        g_debug ("GdmProductSlave: session conversation started");
 
-        relay_session_opened (slave);
+        relay_session_conversation_started (slave, service_name);
 }
 
 static void
@@ -784,10 +786,27 @@ on_relay_user_selected (GdmProductSlave *slave,
 }
 
 static void
-on_relay_open (GdmProductSlave *slave,
-               DBusMessage     *message)
+on_relay_start_conversation (GdmProductSlave *slave,
+                             DBusMessage     *message)
 {
-        gdm_session_open (GDM_SESSION (slave->priv->session));
+        DBusError   error;
+        char *service_name;
+        dbus_bool_t res;
+
+        dbus_error_init (&error);
+        res = dbus_message_get_args (message,
+                                     &error,
+                                     DBUS_TYPE_STRING, &service_name,
+                                     DBUS_TYPE_INVALID);
+        if (res) {
+                g_debug ("GdmProductSlave: Started conversation with %s service", service_name);
+                gdm_session_start_conversation (GDM_SESSION (slave->priv->session),
+                                                service_name);
+        } else {
+                g_warning ("Unable to get arguments: %s", error.message);
+        }
+
+        dbus_error_free (&error);
 }
 
 static void
@@ -832,8 +851,8 @@ create_new_session (GdmProductSlave *slave)
         g_free (display_device);
 
         g_signal_connect (slave->priv->session,
-                          "opened",
-                          G_CALLBACK (on_session_opened),
+                          "conversation-started",
+                          G_CALLBACK (on_session_conversation_started),
                           slave);
         g_signal_connect (slave->priv->session,
                           "setup-complete",
@@ -991,8 +1010,8 @@ relay_dbus_handle_message (DBusConnection *connection,
                 on_relay_user_selected (slave, message);
         } else if (dbus_message_is_signal (message, RELAY_SERVER_DBUS_INTERFACE, "StartSession")) {
                 on_relay_start_session (slave, message);
-        } else if (dbus_message_is_signal (message, RELAY_SERVER_DBUS_INTERFACE, "Open")) {
-                on_relay_open (slave, message);
+        } else if (dbus_message_is_signal (message, RELAY_SERVER_DBUS_INTERFACE, "StartConversation")) {
+                on_relay_start_conversation (slave, message);
         } else if (dbus_message_is_signal (message, RELAY_SERVER_DBUS_INTERFACE, "Cancelled")) {
                 on_relay_cancelled (slave, message);
         } else {
diff --git a/daemon/gdm-session-direct.c b/daemon/gdm-session-direct.c
index 8eadf4d..fa257a0 100644
--- a/daemon/gdm-session-direct.c
+++ b/daemon/gdm-session-direct.c
@@ -61,6 +61,16 @@
 #define GDM_SESSION_DEFAULT_PATH "/usr/local/bin:/usr/bin:/bin"
 #endif
 
+typedef struct
+{
+        GdmSessionDirect    *session;
+        GdmSessionWorkerJob *job;
+        GPid                 worker_pid;
+        char                *service_name;
+        DBusConnection      *worker_connection;
+        DBusMessage         *message_pending_reply;
+} GdmSessionConversation;
+
 struct _GdmSessionDirectPrivate
 {
         /* per open scope */
@@ -73,8 +83,7 @@ struct _GdmSessionDirectPrivate
         char                *selected_user;
         char                *user_x11_authority_file;
 
-        DBusMessage         *message_pending_reply;
-        DBusConnection      *worker_connection;
+        GdmSessionConversation *conversation;
 
         GdmSessionWorkerJob *job;
         GPid                 session_pid;
@@ -115,39 +124,39 @@ G_DEFINE_TYPE_WITH_CODE (GdmSessionDirect,
                                                 gdm_session_iface_init))
 
 static gboolean
-send_dbus_message (DBusConnection *connection,
-                   DBusMessage    *message)
+send_dbus_message (GdmSessionConversation *conversation,
+                   DBusMessage            *message)
 {
         gboolean is_connected;
         gboolean sent;
 
         g_return_val_if_fail (message != NULL, FALSE);
 
-        if (connection == NULL) {
+        if (conversation->worker_connection == NULL) {
                 g_warning ("There is no valid connection");
                 return FALSE;
         }
 
-        is_connected = dbus_connection_get_is_connected (connection);
+        is_connected = dbus_connection_get_is_connected (conversation->worker_connection);
         if (! is_connected) {
                 g_warning ("Not connected!");
                 return FALSE;
         }
 
-        sent = dbus_connection_send (connection, message, NULL);
+        sent = dbus_connection_send (conversation->worker_connection, message, NULL);
 
         return sent;
 }
 
 static void
-send_dbus_string_signal (GdmSessionDirect *session,
+send_dbus_string_signal (GdmSessionConversation *conversation,
                          const char *name,
                          const char *text)
 {
         DBusMessage    *message;
         DBusMessageIter iter;
 
-        g_return_if_fail (session != NULL);
+        g_return_if_fail (conversation != NULL);
 
         message = dbus_message_new_signal (GDM_SESSION_DBUS_PATH,
                                            GDM_SESSION_DBUS_INTERFACE,
@@ -156,7 +165,7 @@ send_dbus_string_signal (GdmSessionDirect *session,
         dbus_message_iter_init_append (message, &iter);
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &text);
 
-        if (! send_dbus_message (session->priv->worker_connection, message)) {
+        if (! send_dbus_message (conversation, message)) {
                 g_debug ("GdmSessionDirect: Could not send %s signal",
                          name ? name : "(null)");
         }
@@ -165,18 +174,18 @@ send_dbus_string_signal (GdmSessionDirect *session,
 }
 
 static void
-send_dbus_void_signal (GdmSessionDirect *session,
-                       const char       *name)
+send_dbus_void_signal (GdmSessionConversation *conversation,
+                       const char             *name)
 {
         DBusMessage *message;
 
-        g_return_if_fail (session != NULL);
+        g_return_if_fail (conversation != NULL);
 
         message = dbus_message_new_signal (GDM_SESSION_DBUS_PATH,
                                            GDM_SESSION_DBUS_INTERFACE,
                                            name);
 
-        if (! send_dbus_message (session->priv->worker_connection, message)) {
+        if (! send_dbus_message (conversation, message)) {
                 g_debug ("GdmSessionDirect: Could not send %s signal", name);
         }
 
@@ -188,22 +197,32 @@ on_authentication_failed (GdmSession *session,
                           const char *message)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
-        gdm_session_record_failed (impl->priv->session_pid,
-                                   impl->priv->selected_user,
-                                   impl->priv->display_hostname,
-                                   impl->priv->display_name,
-                                   impl->priv->display_device);
+        GdmSessionConversation *conversation;
+
+        conversation = impl->priv->conversation;
+        if (conversation != NULL) {
+                gdm_session_record_failed (conversation->worker_pid,
+                                           impl->priv->selected_user,
+                                           impl->priv->display_hostname,
+                                           impl->priv->display_name,
+                                           impl->priv->display_device);
+        }
 }
 
 static void
 on_session_started (GdmSession *session)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
-        gdm_session_record_login (impl->priv->session_pid,
-                                  impl->priv->selected_user,
-                                  impl->priv->display_hostname,
-                                  impl->priv->display_name,
-                                  impl->priv->display_device);
+        GdmSessionConversation *conversation;
+
+        conversation = impl->priv->conversation;
+        if (conversation != NULL) {
+                gdm_session_record_login (conversation->worker_pid,
+                                          impl->priv->selected_user,
+                                          impl->priv->display_hostname,
+                                          impl->priv->display_name,
+                                          impl->priv->display_device);
+        }
 }
 
 static void
@@ -211,11 +230,16 @@ on_session_start_failed (GdmSession *session,
                          const char *message)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
-        gdm_session_record_login (impl->priv->session_pid,
-                                  impl->priv->selected_user,
-                                  impl->priv->display_hostname,
-                                  impl->priv->display_name,
-                                  impl->priv->display_device);
+        GdmSessionConversation *conversation;
+
+        conversation = impl->priv->conversation;
+        if (conversation != NULL) {
+                gdm_session_record_login (conversation->worker_pid,
+                                          impl->priv->selected_user,
+                                          impl->priv->display_hostname,
+                                          impl->priv->display_name,
+                                          impl->priv->display_device);
+        }
 }
 
 static void
@@ -223,6 +247,7 @@ on_session_exited (GdmSession *session,
                    int        exit_code)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+
         gdm_session_record_logout (impl->priv->session_pid,
                                    impl->priv->selected_user,
                                    impl->priv->display_hostname,
@@ -731,54 +756,52 @@ gdm_session_direct_handle_username_changed (GdmSessionDirect *session,
 }
 
 static void
-cancel_pending_query (GdmSessionDirect *session)
+cancel_pending_query (GdmSessionConversation *conversation)
 {
         DBusMessage *reply;
 
-        if (session->priv->message_pending_reply == NULL) {
+        if (conversation->message_pending_reply == NULL) {
                 return;
         }
 
         g_debug ("GdmSessionDirect: Cancelling pending query");
 
-        reply = dbus_message_new_error (session->priv->message_pending_reply,
+        reply = dbus_message_new_error (conversation->message_pending_reply,
                                         GDM_SESSION_DBUS_ERROR_CANCEL,
                                         "Operation cancelled");
-        dbus_connection_send (session->priv->worker_connection, reply, NULL);
-        dbus_connection_flush (session->priv->worker_connection);
+        dbus_connection_send (conversation->worker_connection, reply, NULL);
+        dbus_connection_flush (conversation->worker_connection);
 
         dbus_message_unref (reply);
-        dbus_message_unref (session->priv->message_pending_reply);
-        session->priv->message_pending_reply = NULL;
+        dbus_message_unref (conversation->message_pending_reply);
+        conversation->message_pending_reply = NULL;
 }
 
 static void
-answer_pending_query (GdmSessionDirect *session,
-                      const char       *answer)
+answer_pending_query (GdmSessionConversation *conversation,
+                      const char             *answer)
 {
         DBusMessage    *reply;
         DBusMessageIter iter;
 
-        g_assert (session->priv->message_pending_reply != NULL);
-
-        reply = dbus_message_new_method_return (session->priv->message_pending_reply);
+        reply = dbus_message_new_method_return (conversation->message_pending_reply);
         dbus_message_iter_init_append (reply, &iter);
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &answer);
 
-        dbus_connection_send (session->priv->worker_connection, reply, NULL);
+        dbus_connection_send (conversation->worker_connection, reply, NULL);
         dbus_message_unref (reply);
 
-        dbus_message_unref (session->priv->message_pending_reply);
-        session->priv->message_pending_reply = NULL;
+        dbus_message_unref (conversation->message_pending_reply);
+        conversation->message_pending_reply = NULL;
 }
 
 static void
-set_pending_query (GdmSessionDirect *session,
-                   DBusMessage      *message)
+set_pending_query (GdmSessionConversation *conversation,
+                   DBusMessage            *message)
 {
-        g_assert (session->priv->message_pending_reply == NULL);
+        g_assert (conversation->message_pending_reply == NULL);
 
-        session->priv->message_pending_reply = dbus_message_ref (message);
+        conversation->message_pending_reply = dbus_message_ref (message);
 }
 
 static DBusHandlerResult
@@ -788,6 +811,9 @@ gdm_session_direct_handle_info_query (GdmSessionDirect *session,
 {
         DBusError    error;
         const char  *text;
+        GdmSessionConversation *conversation;
+
+        conversation = session->priv->conversation;
 
         dbus_error_init (&error);
         if (! dbus_message_get_args (message, &error,
@@ -796,7 +822,7 @@ gdm_session_direct_handle_info_query (GdmSessionDirect *session,
                 g_warning ("ERROR: %s", error.message);
         }
 
-        set_pending_query (session, message);
+        set_pending_query (conversation, message);
 
         g_debug ("GdmSessionDirect: Emitting 'info-query' signal");
         _gdm_session_info_query (GDM_SESSION (session), text);
@@ -811,6 +837,9 @@ gdm_session_direct_handle_secret_info_query (GdmSessionDirect *session,
 {
         DBusError    error;
         const char  *text;
+        GdmSessionConversation *conversation;
+
+        conversation = session->priv->conversation;
 
         dbus_error_init (&error);
         if (! dbus_message_get_args (message, &error,
@@ -819,7 +848,7 @@ gdm_session_direct_handle_secret_info_query (GdmSessionDirect *session,
                 g_warning ("ERROR: %s", error.message);
         }
 
-        set_pending_query (session, message);
+        set_pending_query (conversation, message);
 
         g_debug ("GdmSessionDirect: Emitting 'secret-info-query' signal");
         _gdm_session_secret_info_query (GDM_SESSION (session), text);
@@ -859,9 +888,13 @@ gdm_session_direct_handle_cancel_pending_query (GdmSessionDirect *session,
                                                 DBusMessage      *message)
 {
         DBusMessage *reply;
+        GdmSessionConversation *conversation;
 
         g_debug ("GdmSessionDirect: worker cancelling pending query");
-        cancel_pending_query (session);
+
+        conversation = session->priv->conversation;
+
+        cancel_pending_query (conversation);
 
         reply = dbus_message_new_method_return (message);
         dbus_connection_send (connection, reply, NULL);
@@ -1427,16 +1460,18 @@ handle_connection (DBusServer      *server,
                    void            *user_data)
 {
         GdmSessionDirect *session = GDM_SESSION_DIRECT (user_data);
+        GdmSessionConversation *conversation;
 
         g_debug ("GdmSessionDirect: Handing new connection");
 
-        if (session->priv->worker_connection == NULL) {
+        conversation = session->priv->conversation;
+        if (conversation->worker_connection == NULL) {
                 DBusObjectPathVTable vtable = { &session_unregister_handler,
                                                 &session_message_handler,
                                                 NULL, NULL, NULL, NULL
                 };
 
-                session->priv->worker_connection = new_connection;
+                conversation->worker_connection = new_connection;
                 dbus_connection_ref (new_connection);
                 dbus_connection_setup_with_g_main (new_connection, NULL);
 
@@ -1453,8 +1488,9 @@ handle_connection (DBusServer      *server,
                                                       &vtable,
                                                       session);
 
-                g_debug ("GdmSessionDirect: Emitting opened signal");
-                _gdm_session_opened (GDM_SESSION (session));
+                g_debug ("GdmSessionDirect: Emitting conversation-started signal");
+                _gdm_session_conversation_started (GDM_SESSION (session),
+                                                   conversation->service_name);
         }
 }
 
@@ -1524,8 +1560,6 @@ gdm_session_direct_init (GdmSessionDirect *session)
                           G_CALLBACK (on_session_exited),
                           NULL);
 
-        session->priv->session_pid = -1;
-
         session->priv->environment = g_hash_table_new_full (g_str_hash,
                                                             g_str_equal,
                                                             (GDestroyNotify) g_free,
@@ -1537,7 +1571,7 @@ gdm_session_direct_init (GdmSessionDirect *session)
 
 static void
 worker_started (GdmSessionWorkerJob *job,
-                GdmSessionDirect    *session)
+                GdmSessionConversation *conversation)
 {
         g_debug ("GdmSessionDirect: Worker job started");
 }
@@ -1545,87 +1579,105 @@ worker_started (GdmSessionWorkerJob *job,
 static void
 worker_exited (GdmSessionWorkerJob *job,
                int                  code,
-               GdmSessionDirect    *session)
+               GdmSessionConversation *conversation)
 {
         g_debug ("GdmSessionDirect: Worker job exited: %d", code);
 
-        if (session->priv->is_running) {
-                _gdm_session_session_exited (GDM_SESSION (session), code);
+        if (conversation->session->priv->is_running) {
+                _gdm_session_session_exited (GDM_SESSION (conversation->session), code);
         }
 }
 
 static void
 worker_died (GdmSessionWorkerJob *job,
              int                  signum,
-             GdmSessionDirect    *session)
+             GdmSessionConversation *conversation)
 {
         g_debug ("GdmSessionDirect: Worker job died: %d", signum);
 
-        if (session->priv->is_running) {
-                _gdm_session_session_died (GDM_SESSION (session), signum);
+        if (conversation->session->priv->is_running) {
+                _gdm_session_session_died (GDM_SESSION (conversation->session), signum);
         }
 }
 
-static gboolean
-start_worker (GdmSessionDirect *session)
+static GdmSessionConversation *
+start_conversation (GdmSessionDirect *session,
+                    const char       *service_name)
 {
-        gboolean res;
+        GdmSessionConversation *conversation;
 
-        session->priv->job = gdm_session_worker_job_new ();
-        gdm_session_worker_job_set_server_address (session->priv->job, session->priv->server_address);
-        g_signal_connect (session->priv->job,
+        conversation = g_new0 (GdmSessionConversation, 1);
+        conversation->session = session;
+        conversation->service_name = g_strdup (service_name);
+        conversation->worker_pid = -1;
+        conversation->job = gdm_session_worker_job_new ();
+        gdm_session_worker_job_set_server_address (conversation->job, session->priv->server_address);
+        g_signal_connect (conversation->job,
                           "started",
                           G_CALLBACK (worker_started),
-                          session);
-        g_signal_connect (session->priv->job,
+                          conversation);
+        g_signal_connect (conversation->job,
                           "exited",
                           G_CALLBACK (worker_exited),
-                          session);
-        g_signal_connect (session->priv->job,
+                          conversation);
+        g_signal_connect (conversation->job,
                           "died",
                           G_CALLBACK (worker_died),
-                          session);
+                          conversation);
 
-        res = gdm_session_worker_job_start (session->priv->job);
+        if (!gdm_session_worker_job_start (conversation->job)) {
+                g_object_unref (conversation->job);
+                g_free (conversation->service_name);
+                g_free (conversation);
+                return NULL;
+        }
 
-        return res;
+        conversation->worker_pid = gdm_session_worker_job_get_pid (conversation->job);
+
+        return conversation;
 }
 
 static void
-stop_worker (GdmSessionDirect *session)
+stop_conversation (GdmSessionConversation *conversation)
 {
-        g_signal_handlers_disconnect_by_func (session->priv->job,
+        GdmSessionDirect *session;
+
+        session = conversation->session;
+
+        g_signal_handlers_disconnect_by_func (conversation->job,
                                               G_CALLBACK (worker_started),
-                                              session);
-        g_signal_handlers_disconnect_by_func (session->priv->job,
+                                              conversation);
+        g_signal_handlers_disconnect_by_func (conversation->job,
                                               G_CALLBACK (worker_exited),
-                                              session);
-        g_signal_handlers_disconnect_by_func (session->priv->job,
+                                              conversation);
+        g_signal_handlers_disconnect_by_func (conversation->job,
                                               G_CALLBACK (worker_died),
-                                              session);
+                                              conversation);
 
-        cancel_pending_query (session);
+        cancel_pending_query (conversation);
 
-        if (session->priv->worker_connection != NULL) {
-                dbus_connection_close (session->priv->worker_connection);
-                session->priv->worker_connection = NULL;
+        if (conversation->worker_connection != NULL) {
+                dbus_connection_close (conversation->worker_connection);
+                conversation->worker_connection = NULL;
         }
 
-        gdm_session_worker_job_stop (session->priv->job);
-        g_object_unref (session->priv->job);
-        session->priv->job = NULL;
+        gdm_session_worker_job_stop (conversation->job);
+        g_object_unref (conversation->job);
+        g_free (conversation->service_name);
+        g_free (conversation);
 }
 
 static void
-gdm_session_direct_open (GdmSession *session)
+gdm_session_direct_start_conversation (GdmSession *session,
+                                       const char *service_name)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
 
         g_return_if_fail (session != NULL);
 
-        g_debug ("GdmSessionDirect: Opening session");
+        g_debug ("GdmSessionDirect: starting conversation");
 
-        start_worker (impl);
+        impl->priv->conversation = start_conversation (impl, service_name);
 }
 
 static void
@@ -1638,6 +1690,7 @@ send_setup (GdmSessionDirect *session,
         const char     *display_device;
         const char     *display_hostname;
         const char     *display_x11_authority_file;
+        GdmSessionConversation *conversation;
 
         g_assert (service_name != NULL);
 
@@ -1675,7 +1728,8 @@ send_setup (GdmSessionDirect *session,
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &display_hostname);
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &display_x11_authority_file);
 
-        if (! send_dbus_message (session->priv->worker_connection, message)) {
+        conversation = session->priv->conversation;
+        if (! send_dbus_message (conversation, message)) {
                 g_debug ("GdmSessionDirect: Could not send %s signal", "Setup");
         }
 
@@ -1693,6 +1747,7 @@ send_setup_for_user (GdmSessionDirect *session,
         const char     *display_hostname;
         const char     *display_x11_authority_file;
         const char     *selected_user;
+        GdmSessionConversation *conversation;
 
         g_assert (service_name != NULL);
 
@@ -1736,7 +1791,8 @@ send_setup_for_user (GdmSessionDirect *session,
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &display_x11_authority_file);
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &selected_user);
 
-        if (! send_dbus_message (session->priv->worker_connection, message)) {
+        conversation = session->priv->conversation;
+        if (! send_dbus_message (conversation, message)) {
                 g_debug ("GdmSessionDirect: Could not send %s signal", "SetupForUser");
         }
 
@@ -1750,7 +1806,8 @@ gdm_session_direct_setup (GdmSession *session,
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
 
         g_return_if_fail (session != NULL);
-        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->worker_connection));
+        g_return_if_fail (impl->priv->conversation != NULL);
+        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->conversation->worker_connection));
 
         send_setup (impl, service_name);
         gdm_session_direct_defaults_changed (impl);
@@ -1764,7 +1821,8 @@ gdm_session_direct_setup_for_user (GdmSession *session,
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
 
         g_return_if_fail (session != NULL);
-        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->worker_connection));
+        g_return_if_fail (impl->priv->conversation != NULL);
+        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->conversation->worker_connection));
         g_return_if_fail (username != NULL);
 
         gdm_session_direct_select_user (session, username);
@@ -1777,22 +1835,28 @@ static void
 gdm_session_direct_authenticate (GdmSession *session)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_return_if_fail (session != NULL);
-        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->worker_connection));
+        g_return_if_fail (impl->priv->conversation != NULL);
+        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->conversation->worker_connection));
 
-        send_dbus_void_signal (impl, "Authenticate");
+        conversation = impl->priv->conversation;
+        send_dbus_void_signal (conversation, "Authenticate");
 }
 
 static void
 gdm_session_direct_authorize (GdmSession *session)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_return_if_fail (session != NULL);
-        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->worker_connection));
+        g_return_if_fail (impl->priv->conversation != NULL);
+        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->conversation->worker_connection));
 
-        send_dbus_void_signal (impl, "Authorize");
+        conversation = impl->priv->conversation;
+        send_dbus_void_signal (conversation, "Authorize");
 }
 
 static void
@@ -1800,16 +1864,19 @@ gdm_session_direct_accredit (GdmSession *session,
                              int         cred_flag)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_return_if_fail (session != NULL);
-        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->worker_connection));
+        g_return_if_fail (impl->priv->conversation != NULL);
+        g_return_if_fail (dbus_connection_get_is_connected (impl->priv->conversation->worker_connection));
 
+        conversation = impl->priv->conversation;
         switch (cred_flag) {
         case GDM_SESSION_CRED_ESTABLISH:
-                send_dbus_void_signal (impl, "EstablishCredentials");
+                send_dbus_void_signal (conversation, "EstablishCredentials");
                 break;
         case GDM_SESSION_CRED_REFRESH:
-                send_dbus_void_signal (impl, "RefreshCredentials");
+                send_dbus_void_signal (conversation, "RefreshCredentials");
                 break;
         default:
                 g_assert_not_reached ();
@@ -1823,6 +1890,7 @@ send_environment_variable (const char       *key,
 {
         DBusMessage    *message;
         DBusMessageIter iter;
+        GdmSessionConversation *conversation;
 
         message = dbus_message_new_signal (GDM_SESSION_DBUS_PATH,
                                            GDM_SESSION_DBUS_INTERFACE,
@@ -1832,7 +1900,8 @@ send_environment_variable (const char       *key,
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &key);
         dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &value);
 
-        if (! send_dbus_message (session->priv->worker_connection, message)) {
+        conversation = session->priv->conversation;
+        if (! send_dbus_message (conversation, message)) {
                 g_debug ("GdmSessionDirect: Could not send %s signal", "SetEnvironmentVariable");
         }
 
@@ -1965,6 +2034,7 @@ static void
 gdm_session_direct_start_session (GdmSession *session)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
         char             *command;
         char             *program;
 
@@ -1978,7 +2048,8 @@ gdm_session_direct_start_session (GdmSession *session)
         setup_session_environment (impl);
         send_environment (impl);
 
-        send_dbus_string_signal (impl, "StartProgram", program);
+        conversation = impl->priv->conversation;
+        send_dbus_string_signal (conversation, "StartProgram", program);
         g_free (program);
 }
 
@@ -1991,16 +2062,12 @@ gdm_session_direct_close (GdmSession *session)
 
         g_debug ("GdmSessionDirect: Closing session");
 
-        if (impl->priv->job != NULL) {
-                if (impl->priv->is_running) {
-                        gdm_session_record_logout (impl->priv->session_pid,
-                                                   impl->priv->selected_user,
-                                                   impl->priv->display_hostname,
-                                                   impl->priv->display_name,
-                                                   impl->priv->display_device);
-                }
-
-                stop_worker (impl);
+        if (impl->priv->is_running) {
+                gdm_session_record_logout (impl->priv->session_pid,
+                                           impl->priv->selected_user,
+                                           impl->priv->display_hostname,
+                                           impl->priv->display_name,
+                                           impl->priv->display_device);
         }
 
         g_free (impl->priv->selected_user);
@@ -2038,10 +2105,13 @@ gdm_session_direct_answer_query  (GdmSession *session,
                                   const char *text)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_return_if_fail (session != NULL);
 
-        answer_pending_query (impl, text);
+        conversation = impl->priv->conversation;
+
+        answer_pending_query (conversation, text);
 }
 
 static void
@@ -2051,7 +2121,7 @@ gdm_session_direct_cancel  (GdmSession *session)
 
         g_return_if_fail (session != NULL);
 
-        cancel_pending_query (impl);
+        cancel_pending_query (impl->priv->conversation);
 }
 
 char *
@@ -2067,6 +2137,7 @@ gdm_session_direct_select_session (GdmSession *session,
                                    const char *text)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_free (impl->priv->selected_session);
 
@@ -2076,7 +2147,8 @@ gdm_session_direct_select_session (GdmSession *session,
                 impl->priv->selected_session = g_strdup (text);
         }
 
-        send_dbus_string_signal (impl, "SetSessionName",
+        conversation = impl->priv->conversation;
+        send_dbus_string_signal (conversation, "SetSessionName",
                                  get_session_name (impl));
 }
 
@@ -2085,6 +2157,7 @@ gdm_session_direct_select_language (GdmSession *session,
                                     const char *text)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_free (impl->priv->selected_language);
 
@@ -2094,7 +2167,8 @@ gdm_session_direct_select_language (GdmSession *session,
                 impl->priv->selected_language = g_strdup (text);
         }
 
-        send_dbus_string_signal (impl, "SetLanguageName",
+        conversation = impl->priv->conversation;
+        send_dbus_string_signal (conversation, "SetLanguageName",
                                  get_language_name (impl));
 }
 
@@ -2103,6 +2177,7 @@ gdm_session_direct_select_layout (GdmSession *session,
                                   const char *text)
 {
         GdmSessionDirect *impl = GDM_SESSION_DIRECT (session);
+        GdmSessionConversation *conversation;
 
         g_free (impl->priv->selected_layout);
 
@@ -2112,7 +2187,8 @@ gdm_session_direct_select_layout (GdmSession *session,
                 impl->priv->selected_layout = g_strdup (text);
         }
 
-        send_dbus_string_signal (impl, "SetLayoutName",
+        conversation = impl->priv->conversation;
+        send_dbus_string_signal (conversation, "SetLayoutName",
                                  get_layout_name (impl));
 }
 
@@ -2372,7 +2448,7 @@ gdm_session_direct_constructor (GType                  type,
 static void
 gdm_session_iface_init (GdmSessionIface *iface)
 {
-        iface->open = gdm_session_direct_open;
+        iface->start_conversation = gdm_session_direct_start_conversation;
         iface->setup = gdm_session_direct_setup;
         iface->setup_for_user = gdm_session_direct_setup_for_user;
         iface->authenticate = gdm_session_direct_authenticate;
diff --git a/daemon/gdm-session-private.h b/daemon/gdm-session-private.h
index 6a6fcfc..074aa6f 100644
--- a/daemon/gdm-session-private.h
+++ b/daemon/gdm-session-private.h
@@ -27,7 +27,8 @@
 G_BEGIN_DECLS
 
 /* state changes */
-void             _gdm_session_opened                       (GdmSession   *session);
+void             _gdm_session_conversation_started         (GdmSession   *session,
+                                                            const char   *service_name);
 void             _gdm_session_setup_complete               (GdmSession   *session);
 void             _gdm_session_setup_failed                 (GdmSession   *session,
                                                             const char   *message);
diff --git a/daemon/gdm-session-relay.c b/daemon/gdm-session-relay.c
index b57bf89..35b4738 100644
--- a/daemon/gdm-session-relay.c
+++ b/daemon/gdm-session-relay.c
@@ -180,10 +180,11 @@ send_dbus_void_signal (GdmSessionRelay *session_relay,
 }
 
 static void
-gdm_session_relay_open (GdmSession *session)
+gdm_session_relay_start_conversation (GdmSession *session,
+                                      const char *service_name)
 {
         GdmSessionRelay *impl = GDM_SESSION_RELAY (session);
-        send_dbus_void_signal (impl, "Open");
+        send_dbus_string_signal (impl, "StartConversation", service_name);
 }
 
 static void
@@ -664,22 +665,28 @@ handle_session_stopped (GdmSessionRelay *session_relay,
 }
 
 static DBusHandlerResult
-handle_opened (GdmSessionRelay *session_relay,
+handle_conversation_started (GdmSessionRelay *session_relay,
                DBusConnection  *connection,
                DBusMessage     *message)
 {
         DBusMessage *reply;
         DBusError    error;
+        char *service_name;
 
         dbus_error_init (&error);
+        if (! dbus_message_get_args (message, &error,
+                                     DBUS_TYPE_STRING, &service_name,
+                                     DBUS_TYPE_INVALID)) {
+                g_warning ("ERROR: %s", error.message);
+        }
 
-        g_debug ("GdmSessionRelay: Opened");
+        g_debug ("GdmSessionRelay: Conversation Started");
 
         reply = dbus_message_new_method_return (message);
         dbus_connection_send (connection, reply, NULL);
         dbus_message_unref (reply);
 
-        _gdm_session_opened (GDM_SESSION (session_relay));
+        _gdm_session_conversation_started (GDM_SESSION (session_relay), service_name);
 
         return DBUS_HANDLER_RESULT_HANDLED;
 }
@@ -719,8 +726,8 @@ session_handle_child_message (DBusConnection *connection,
                 return handle_session_started (session_relay, connection, message);
         } else if (dbus_message_is_method_call (message, GDM_SESSION_RELAY_DBUS_INTERFACE, "SessionStopped")) {
                 return handle_session_stopped (session_relay, connection, message);
-        } else if (dbus_message_is_method_call (message, GDM_SESSION_RELAY_DBUS_INTERFACE, "Opened")) {
-                return handle_opened (session_relay, connection, message);
+        } else if (dbus_message_is_method_call (message, GDM_SESSION_RELAY_DBUS_INTERFACE, "ConversationStarted")) {
+                return handle_conversation_started (session_relay, connection, message);
         }
 
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
@@ -749,7 +756,8 @@ do_introspect (DBusConnection *connection,
         /* interface */
         xml = g_string_append (xml,
                                "  <interface name=\"org.gnome.DisplayManager.SessionRelay\">\n"
-                               "    <method name=\"Opened\">\n"
+                               "    <method name=\"ConversationStarted\">\n"
+                               "      <arg name=\"service_name\" direction=\"in\" type=\"s\"/>\n"
                                "    </method>\n"
                                "    <method name=\"SetupComplete\">\n"
                                "    </method>\n"
@@ -810,7 +818,8 @@ do_introspect (DBusConnection *connection,
                                "    <signal name=\"RefreshCredentials\">\n"
                                "    </signal>\n"
 
-                               "    <signal name=\"Open\">\n"
+                               "    <signal name=\"StartConversation\">\n"
+                               "      <arg name=\"service_name\" type=\"s\"/>\n"
                                "    </signal>\n"
                                "    <signal name=\"Close\">\n"
                                "    </signal>\n"
@@ -1106,7 +1115,7 @@ static void
 gdm_session_iface_init (GdmSessionIface *iface)
 {
 
-        iface->open = gdm_session_relay_open;
+        iface->start_conversation = gdm_session_relay_start_conversation;
         iface->setup = gdm_session_relay_setup;
         iface->setup_for_user = gdm_session_relay_setup_for_user;
         iface->authenticate = gdm_session_relay_authenticate;
diff --git a/daemon/gdm-session-worker-job.c b/daemon/gdm-session-worker-job.c
index 633d6e2..9c020fa 100644
--- a/daemon/gdm-session-worker-job.c
+++ b/daemon/gdm-session-worker-job.c
@@ -296,6 +296,13 @@ gdm_session_worker_job_stop (GdmSessionWorkerJob *session_worker_job)
         return TRUE;
 }
 
+GPid
+gdm_session_worker_job_get_pid (GdmSessionWorkerJob *session_worker_job)
+{
+        g_return_val_if_fail (GDM_IS_SESSION_WORKER_JOB (session_worker_job), 0);
+        return session_worker_job->priv->pid;
+}
+
 void
 gdm_session_worker_job_set_server_address (GdmSessionWorkerJob *session_worker_job,
                                            const char      *address)
diff --git a/daemon/gdm-session-worker-job.h b/daemon/gdm-session-worker-job.h
index 5ad1c92..d24f025 100644
--- a/daemon/gdm-session-worker-job.h
+++ b/daemon/gdm-session-worker-job.h
@@ -60,6 +60,8 @@ void                    gdm_session_worker_job_set_server_address (GdmSessionWor
 gboolean                gdm_session_worker_job_start              (GdmSessionWorkerJob *session_worker_job);
 gboolean                gdm_session_worker_job_stop               (GdmSessionWorkerJob *session_worker_job);
 
+GPid                    gdm_session_worker_job_get_pid            (GdmSessionWorkerJob *session_worker_job);
+
 G_END_DECLS
 
 #endif /* __GDM_SESSION_WORKER_JOB_H */
diff --git a/daemon/gdm-session.c b/daemon/gdm-session.c
index feb7938..0073294 100644
--- a/daemon/gdm-session.c
+++ b/daemon/gdm-session.c
@@ -28,7 +28,7 @@
 #include "gdm-session-private.h"
 
 enum {
-        OPENED = 0,
+        CONVERSATION_STARTED = 0,
         SETUP_COMPLETE,
         SETUP_FAILED,
         RESET_COMPLETE,
@@ -78,11 +78,12 @@ gdm_session_get_type (void)
 }
 
 void
-gdm_session_open (GdmSession *session)
+gdm_session_start_conversation (GdmSession *session,
+                                const char *service_name)
 {
         g_return_if_fail (GDM_IS_SESSION (session));
 
-        GDM_SESSION_GET_IFACE (session)->open (session);
+        GDM_SESSION_GET_IFACE (session)->start_conversation (session, service_name);
 }
 
 void
@@ -203,14 +204,14 @@ gdm_session_class_init (gpointer g_iface)
 {
         GType iface_type = G_TYPE_FROM_INTERFACE (g_iface);
 
-        signals [OPENED] =
-                g_signal_new ("opened",
+        signals [CONVERSATION_STARTED] =
+                g_signal_new ("conversation-started",
                               iface_type,
                               G_SIGNAL_RUN_FIRST,
-                              G_STRUCT_OFFSET (GdmSessionIface, opened),
+                              G_STRUCT_OFFSET (GdmSessionIface, conversation_started),
                               NULL,
                               NULL,
-                              g_cclosure_marshal_VOID__VOID,
+                              g_cclosure_marshal_VOID__STRING,
                               G_TYPE_NONE,
                               0);
         signals [SETUP_COMPLETE] =
@@ -608,10 +609,11 @@ _gdm_session_session_died (GdmSession   *session,
 }
 
 void
-_gdm_session_opened (GdmSession   *session)
+_gdm_session_conversation_started (GdmSession   *session,
+                                   const char   *service_name)
 {
         g_return_if_fail (GDM_IS_SESSION (session));
-        g_signal_emit (session, signals [OPENED], 0);
+        g_signal_emit (session, signals [CONVERSATION_STARTED], 0, service_name);
 }
 
 void
diff --git a/daemon/gdm-session.h b/daemon/gdm-session.h
index dfb7e27..77e0cf6 100644
--- a/daemon/gdm-session.h
+++ b/daemon/gdm-session.h
@@ -45,7 +45,8 @@ struct _GdmSessionIface
         GTypeInterface base_iface;
 
         /* Methods */
-        void (* open)                        (GdmSession   *session);
+        void (* start_conversation)          (GdmSession   *session,
+                                              const char   *service_name);
         void (* setup)                       (GdmSession   *session,
                                               const char   *service_name);
         void (* setup_for_user)              (GdmSession   *session,
@@ -103,7 +104,8 @@ struct _GdmSessionIface
                                               int           exit_code);
         void (* session_died)                (GdmSession   *session,
                                               int           signal_number);
-        void (* opened)                      (GdmSession   *session);
+        void (* conversation_started)        (GdmSession   *session,
+                                              const char   *service_name);
         void (* closed)                      (GdmSession   *session);
         void (* selected_user_changed)       (GdmSession   *session,
                                               const char   *text);
@@ -118,7 +120,8 @@ struct _GdmSessionIface
 
 GType    gdm_session_get_type                    (void) G_GNUC_CONST;
 
-void     gdm_session_open                        (GdmSession *session);
+void     gdm_session_start_conversation          (GdmSession *session,
+                                                  const char *service_name);
 void     gdm_session_setup                       (GdmSession *session,
                                                   const char *service_name);
 void     gdm_session_setup_for_user              (GdmSession *session,
diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index 8b161bb..12e514e 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -174,7 +174,6 @@ reset_session (GdmSimpleSlave *slave)
 {
         destroy_session (slave);
         create_new_session (slave);
-        gdm_session_open (GDM_SESSION (slave->priv->session));
 }
 
 static gboolean
@@ -822,8 +821,6 @@ on_greeter_connected (GdmGreeterServer *greeter_server,
 
         g_debug ("GdmSimpleSlave: Greeter connected");
 
-        gdm_session_open (GDM_SESSION (slave->priv->session));
-
         g_object_get (slave,
                       "display-is-local", &display_is_local,
                       NULL);
diff --git a/daemon/test-session.c b/daemon/test-session.c
index c6a158c..d9fa26e 100644
--- a/daemon/test-session.c
+++ b/daemon/test-session.c
@@ -33,12 +33,13 @@
 static GMainLoop *loop;
 
 static void
-on_open (GdmSession *session,
-         const char *username)
+on_conversation_started (GdmSession *session,
+                         const char *service_name,
+                         const char *username)
 {
         g_debug ("Got opened: calling setup...");
 
-        gdm_session_setup (session, "gdm");
+        gdm_session_setup (session, service_name);
 }
 
 static void
@@ -256,11 +257,11 @@ main (int   argc,
                         username = argv[1];
                 }
 
-                gdm_session_open (GDM_SESSION (session));
+                gdm_session_start_conversation (GDM_SESSION (session), "gdm");
 
                 g_signal_connect (session,
-                                  "opened",
-                                  G_CALLBACK (on_open),
+                                  "conversation-started",
+                                  G_CALLBACK (on_conversation_started),
                                   username);
                 g_signal_connect (session,
                                   "setup-complete",



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