[gdm] slave: drop the slaves



commit 48f35210656c6f80052dce598d648bd17101a1cc
Author: Ray Strode <rstrode redhat com>
Date:   Wed Feb 11 01:51:07 2015 -0500

    slave: drop the slaves
    
    At this point the slaves do nothing useful, so we can
    get rid of them.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744764

 daemon/Makefile.am                 |    6 -
 daemon/gdm-display.c               |  125 +++-----
 daemon/gdm-display.h               |    2 -
 daemon/gdm-manager.c               |   14 -
 daemon/gdm-simple-slave.c          |   67 ----
 daemon/gdm-simple-slave.h          |   54 ---
 daemon/gdm-slave.c                 |  657 ------------------------------------
 daemon/gdm-slave.h                 |   83 -----
 daemon/gdm-xdmcp-chooser-display.c |    2 -
 daemon/gdm-xdmcp-chooser-slave.c   |  108 ------
 daemon/gdm-xdmcp-chooser-slave.h   |   55 ---
 11 files changed, 43 insertions(+), 1130 deletions(-)
---
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index 949cf36..fd7ac4a 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -194,10 +194,6 @@ gdm_SOURCES =                      \
        gdm-session-worker-common.h     \
        gdm-session-worker-job.c        \
        gdm-session-worker-job.h        \
-       gdm-slave.c                     \
-       gdm-slave.h                     \
-       gdm-simple-slave.c              \
-       gdm-simple-slave.h              \
        gdm-dbus-util.c                 \
        gdm-dbus-util.h                 \
        gdm-xerrors.c                   \
@@ -228,8 +224,6 @@ XDMCP_SOURCES =                             \
        gdm-xdmcp-display.h             \
        gdm-xdmcp-chooser-display.c     \
        gdm-xdmcp-chooser-display.h     \
-       gdm-xdmcp-chooser-slave.c       \
-       gdm-xdmcp-chooser-slave.h       \
        $(NULL)
 
 if XDMCP_SUPPORT
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c
index caec1c0..3867deb 100644
--- a/daemon/gdm-display.c
+++ b/daemon/gdm-display.c
@@ -47,8 +47,6 @@
 #include "gdm-settings-keys.h"
 
 #include "gdm-launch-environment.h"
-#include "gdm-simple-slave.h"
-#include "gdm-xdmcp-chooser-slave.h"
 #include "gdm-dbus-util.h"
 #include "gdm-xerrors.h"
 
@@ -68,8 +66,7 @@ struct GdmDisplayPrivate
         char                 *x11_display_name;
         int                   status;
         time_t                creation_time;
-        GTimer               *slave_timer;
-        GType                 slave_type;
+        GTimer               *server_timer;
 
         char                 *x11_cookie;
         gsize                 x11_cookie_size;
@@ -79,7 +76,6 @@ struct GdmDisplayPrivate
 
         Display              *x11_display;
 
-        GdmSlave             *slave;
         GDBusConnection      *connection;
         GdmDisplayAccessFile *user_access_file;
 
@@ -110,7 +106,6 @@ enum {
         PROP_X11_COOKIE,
         PROP_X11_AUTHORITY_FILE,
         PROP_IS_LOCAL,
-        PROP_SLAVE_TYPE,
         PROP_LAUNCH_ENVIRONMENT,
         PROP_IS_INITIAL,
         PROP_ALLOW_TIMED_LOGIN,
@@ -378,7 +373,7 @@ gdm_display_add_user_authorization (GdmDisplay *self,
         self->priv->user_access_file = access_file;
 
         g_debug ("GdmDisplay: Added user authorization for %s: %s", username, *filename);
-        /* Remove access for the programs run by slave and greeter now that the
+        /* Remove access for the programs run by greeter now that the
          * user session is starting.
          */
         setup_xhost_auth (host_entries, si_entries);
@@ -388,7 +383,7 @@ gdm_display_add_user_authorization (GdmDisplay *self,
         }
         XSync (self->priv->x11_display, False);
         if (gdm_error_trap_pop ()) {
-                g_warning ("Failed to remove slave program access to the display. Trying to proceed.");
+                g_warning ("Failed to remove greeter program access to the display. Trying to proceed.");
         }
 
         return TRUE;
@@ -603,13 +598,6 @@ queue_finish (GdmDisplay *self)
 }
 
 static void
-on_slave_stopped (GdmSlave   *slave,
-                  GdmDisplay *self)
-{
-        queue_finish (self);
-}
-
-static void
 _gdm_display_set_status (GdmDisplay *self,
                          int         status)
 {
@@ -620,16 +608,9 @@ _gdm_display_set_status (GdmDisplay *self,
 }
 
 static void
-on_slave_started (GdmSlave   *slave,
-                  GdmDisplay *self)
-{
-        _gdm_display_set_status (self, GDM_DISPLAY_MANAGED);
-}
-
-static void
 gdm_display_real_manage (GdmDisplay *self)
 {
-        gdm_slave_start (self->priv->slave);
+        _gdm_display_set_status (self, GDM_DISPLAY_MANAGED);
 }
 
 static gboolean
@@ -647,17 +628,6 @@ gdm_display_real_prepare (GdmDisplay *self)
 
         _gdm_display_set_status (self, GDM_DISPLAY_PREPARED);
 
-        self->priv->slave = GDM_SLAVE (g_object_new (self->priv->slave_type,
-                                                     "display", self,
-                                                     NULL));
-        g_signal_connect_object (self->priv->slave, "started",
-                                 G_CALLBACK (on_slave_started),
-                                 self,
-                                 0);
-        g_signal_connect_object (self->priv->slave, "stopped",
-                                 G_CALLBACK (on_slave_stopped),
-                                 self,
-                                 0);
         return TRUE;
 }
 
@@ -748,7 +718,7 @@ gdm_display_manage (GdmDisplay *self)
                 }
         }
 
-        g_timer_start (self->priv->slave_timer);
+        g_timer_start (self->priv->server_timer);
         look_for_existing_users_and_manage (self);
 
         return TRUE;
@@ -780,17 +750,7 @@ gdm_display_unmanage (GdmDisplay *self)
 
         g_debug ("GdmDisplay: unmanage display");
 
-        g_timer_stop (self->priv->slave_timer);
-
-        if (self->priv->slave != NULL) {
-                g_signal_handlers_disconnect_by_func (self->priv->slave,
-                                                      G_CALLBACK (on_slave_started), self);
-                g_signal_handlers_disconnect_by_func (self->priv->slave,
-                                                      G_CALLBACK (on_slave_stopped), self);
-                gdm_slave_stop (self->priv->slave);
-                g_object_unref (self->priv->slave);
-                self->priv->slave = NULL;
-        }
+        g_timer_stop (self->priv->server_timer);
 
         if (self->priv->user_access_file != NULL) {
                 gdm_display_access_file_close (self->priv->user_access_file);
@@ -804,7 +764,7 @@ gdm_display_unmanage (GdmDisplay *self)
                 self->priv->access_file = NULL;
         }
 
-        elapsed = g_timer_elapsed (self->priv->slave_timer, NULL);
+        elapsed = g_timer_elapsed (self->priv->server_timer, NULL);
         if (elapsed < 3) {
                 g_warning ("GdmDisplay: display lasted %lf seconds", elapsed);
                 _gdm_display_set_status (self, GDM_DISPLAY_FAILED);
@@ -920,13 +880,6 @@ _gdm_display_set_is_local (GdmDisplay     *self,
 }
 
 static void
-_gdm_display_set_slave_type (GdmDisplay     *self,
-                             GType           type)
-{
-        self->priv->slave_type = type;
-}
-
-static void
 _gdm_display_set_launch_environment (GdmDisplay           *self,
                                      GdmLaunchEnvironment *launch_environment)
 {
@@ -990,9 +943,6 @@ gdm_display_set_property (GObject        *object,
         case PROP_ALLOW_TIMED_LOGIN:
                 _gdm_display_set_allow_timed_login (self, g_value_get_boolean (value));
                 break;
-        case PROP_SLAVE_TYPE:
-                _gdm_display_set_slave_type (self, g_value_get_gtype (value));
-                break;
         case PROP_LAUNCH_ENVIRONMENT:
                 _gdm_display_set_launch_environment (self, g_value_get_object (value));
                 break;
@@ -1047,9 +997,6 @@ gdm_display_get_property (GObject        *object,
         case PROP_IS_LOCAL:
                 g_value_set_boolean (value, self->priv->is_local);
                 break;
-        case PROP_SLAVE_TYPE:
-                g_value_set_gtype (value, self->priv->slave_type);
-                break;
         case PROP_LAUNCH_ENVIRONMENT:
                 g_value_set_object (value, self->priv->launch_environment);
                 break;
@@ -1373,7 +1320,6 @@ gdm_display_dispose (GObject *object)
 
         g_assert (self->priv->status == GDM_DISPLAY_FINISHED ||
                   self->priv->status == GDM_DISPLAY_FAILED);
-        g_assert (self->priv->slave == NULL);
         g_assert (self->priv->user_access_file == NULL);
         g_assert (self->priv->access_file == NULL);
 
@@ -1496,13 +1442,6 @@ gdm_display_class_init (GdmDisplayClass *klass)
                                                               GDM_TYPE_LAUNCH_ENVIRONMENT,
                                                               G_PARAM_READWRITE));
         g_object_class_install_property (object_class,
-                                         PROP_SLAVE_TYPE,
-                                         g_param_spec_gtype ("slave-type",
-                                                             "slave type",
-                                                             "slave type",
-                                                             GDM_TYPE_SIMPLE_SLAVE,
-                                                             G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
-        g_object_class_install_property (object_class,
                                          PROP_STATUS,
                                          g_param_spec_int ("status",
                                                            "status",
@@ -1522,7 +1461,7 @@ gdm_display_init (GdmDisplay *self)
         self->priv = GDM_DISPLAY_GET_PRIVATE (self);
 
         self->priv->creation_time = time (NULL);
-        self->priv->slave_timer = g_timer_new ();
+        self->priv->server_timer = g_timer_new ();
 }
 
 static void
@@ -1557,8 +1496,8 @@ gdm_display_finalize (GObject *object)
                 g_object_unref (self->priv->user_access_file);
         }
 
-        if (self->priv->slave_timer != NULL) {
-                g_timer_destroy (self->priv->slave_timer);
+        if (self->priv->server_timer != NULL) {
+                g_timer_destroy (self->priv->server_timer);
         }
 
         G_OBJECT_CLASS (gdm_display_parent_class)->finalize (object);
@@ -1590,13 +1529,25 @@ on_launch_environment_session_started (GdmLaunchEnvironment *launch_environment,
 }
 
 static void
+self_destruct (GdmDisplay *self)
+{
+        g_object_ref (self);
+        if (gdm_display_get_status (self) == GDM_DISPLAY_MANAGED) {
+                gdm_display_unmanage (self);
+        }
+
+        if (gdm_display_get_status (self) != GDM_DISPLAY_FINISHED) {
+                queue_finish (self);
+        }
+        g_object_unref (self);
+}
+
+static void
 on_launch_environment_session_stopped (GdmLaunchEnvironment *launch_environment,
                                        GdmDisplay           *self)
 {
         g_debug ("GdmDisplay: Greeter stopped");
-        gdm_slave_stop (self->priv->slave);
-
-        g_clear_object (&self->priv->launch_environment);
+        self_destruct (self);
 }
 
 static void
@@ -1605,7 +1556,7 @@ on_launch_environment_session_exited (GdmLaunchEnvironment *launch_environment,
                                       GdmDisplay           *self)
 {
         g_debug ("GdmDisplay: Greeter exited: %d", code);
-        gdm_slave_stop (self->priv->slave);
+        self_destruct (self);
 }
 
 static void
@@ -1614,7 +1565,7 @@ on_launch_environment_session_died (GdmLaunchEnvironment *launch_environment,
                                     GdmDisplay           *self)
 {
         g_debug ("GdmDisplay: Greeter died: %d", signal);
-        gdm_slave_stop (self->priv->slave);
+        self_destruct (self);
 }
 
 static gboolean
@@ -1778,6 +1729,22 @@ void
 gdm_display_stop_greeter_session (GdmDisplay *self)
 {
         if (self->priv->launch_environment != NULL) {
+
+                g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
+                                                      G_CALLBACK (on_launch_environment_session_opened),
+                                                      self);
+                g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
+                                                      G_CALLBACK (on_launch_environment_session_started),
+                                                      self);
+                g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
+                                                      G_CALLBACK (on_launch_environment_session_stopped),
+                                                      self);
+                g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
+                                                      G_CALLBACK (on_launch_environment_session_exited),
+                                                      self);
+                g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
+                                                      G_CALLBACK (on_launch_environment_session_died),
+                                                      self);
                 gdm_launch_environment_stop (self->priv->launch_environment);
                 g_clear_object (&self->priv->launch_environment);
         }
@@ -1787,12 +1754,6 @@ gdm_display_stop_greeter_session (GdmDisplay *self)
         }
 }
 
-GdmSlave *
-gdm_display_get_slave (GdmDisplay *self)
-{
-        return self->priv->slave;
-}
-
 static void
 gdm_display_set_windowpath (GdmDisplay *self)
 {
diff --git a/daemon/gdm-display.h b/daemon/gdm-display.h
index b3685ee..472d2b7 100644
--- a/daemon/gdm-display.h
+++ b/daemon/gdm-display.h
@@ -24,7 +24,6 @@
 
 #include <glib-object.h>
 #include <gio/gio.h>
-#include "gdm-slave.h"
 
 G_BEGIN_DECLS
 
@@ -141,7 +140,6 @@ void                gdm_display_set_up_greeter_session         (GdmDisplay  *dis
                                                                 char       **username);
 void                gdm_display_start_greeter_session          (GdmDisplay  *display);
 void                gdm_display_stop_greeter_session           (GdmDisplay  *display);
-GdmSlave *          gdm_display_get_slave                      (GdmDisplay  *display);
 
 gboolean            gdm_display_connect                        (GdmDisplay *self);
 
diff --git a/daemon/gdm-manager.c b/daemon/gdm-manager.c
index e564545..5e4bbf2 100644
--- a/daemon/gdm-manager.c
+++ b/daemon/gdm-manager.c
@@ -1582,21 +1582,7 @@ on_session_started (GdmSession      *session,
                     GPid             pid,
                     GdmManager      *manager)
 {
-        GdmDisplay *display;
-
         g_debug ("GdmManager: session started %d", pid);
-
-        display = get_display_for_user_session (session);
-
-        if (display != NULL) {
-                GdmSlave *slave;
-                const char *session_id;
-
-                slave = gdm_display_get_slave (display);
-
-                session_id = gdm_session_get_session_id (session);
-                g_object_set (GDM_SLAVE (slave), "session-id", session_id, NULL);
-        }
 }
 
 static void
diff --git a/daemon/gdm-xdmcp-chooser-display.c b/daemon/gdm-xdmcp-chooser-display.c
index 711751b..d593cb4 100644
--- a/daemon/gdm-xdmcp-chooser-display.c
+++ b/daemon/gdm-xdmcp-chooser-display.c
@@ -38,7 +38,6 @@
 #include "gdm-display.h"
 #include "gdm-launch-environment.h"
 #include "gdm-xdmcp-chooser-display.h"
-#include "gdm-xdmcp-chooser-slave.h"
 
 #include "gdm-common.h"
 #include "gdm-address.h"
@@ -134,7 +133,6 @@ gdm_xdmcp_chooser_display_new (const char              *hostname,
 
         x11_display = g_strdup_printf ("%s:%d", hostname, number);
         object = g_object_new (GDM_TYPE_XDMCP_CHOOSER_DISPLAY,
-                               "slave-type", GDM_TYPE_XDMCP_CHOOSER_SLAVE,
                                "remote-hostname", hostname,
                                "x11-display-number", number,
                                "x11-display-name", x11_display,


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