add event logging capability

This adds the ability to log events to a history file.  One idea
is to be able to provide wtmp like functionality.  The next step
is to add a seat-aware "last" command.  This will be very useful
for creating graphical logins that remember the most recent/frequent
logins.

1 files changed, 161 insertions, 0 deletions

diff --git a/src/ck-event-logger.h b/src/ck-event-logger.h
new file mode 100644
index 0000000..c49136e
--- /dev/null
+++ b/src/ck-event-logger.h
@@ -0,0 +1,161 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifndef __CK_EVENT_LOGGER_H
+#define __CK_EVENT_LOGGER_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define CK_TYPE_EVENT_LOGGER         (ck_event_logger_get_type ())
+#define CK_EVENT_LOGGER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), CK_TYPE_EVENT_LOGGER, CkEventLogger))
+#define CK_EVENT_LOGGER_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), CK_TYPE_EVENT_LOGGER, CkEventLoggerClass))
+#define CK_IS_EVENT_LOGGER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), CK_TYPE_EVENT_LOGGER))
+#define CK_IS_EVENT_LOGGER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), CK_TYPE_EVENT_LOGGER))
+#define CK_EVENT_LOGGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), CK_TYPE_EVENT_LOGGER, CkEventLoggerClass))
+
+typedef struct CkEventLoggerPrivate CkEventLoggerPrivate;
+
+typedef struct
+{
+        GObject               parent;
+        CkEventLoggerPrivate *priv;
+} CkEventLogger;
+
+typedef struct
+{
+        GObjectClass   parent_class;
+} CkEventLoggerClass;
+
+typedef enum
+{
+        CK_EVENT_LOGGER_EVENT_START = 0,
+        CK_EVENT_LOGGER_EVENT_STOP,
+        CK_EVENT_LOGGER_EVENT_SYSTEM_SHUTDOWN,
+        CK_EVENT_LOGGER_EVENT_SYSTEM_RUNLEVEL_CHANGED,
+        CK_EVENT_LOGGER_EVENT_SEAT_ADDED,
+        CK_EVENT_LOGGER_EVENT_SEAT_REMOVED,
+        CK_EVENT_LOGGER_EVENT_SEAT_SESSION_ADDED,
+        CK_EVENT_LOGGER_EVENT_SEAT_SESSION_REMOVED,
+        CK_EVENT_LOGGER_EVENT_SEAT_DEVICE_ADDED,
+        CK_EVENT_LOGGER_EVENT_SEAT_DEVICE_REMOVED,
+        CK_EVENT_LOGGER_EVENT_SEAT_ACTIVE_SESSION_CHANGED,
+} CkEventLoggerEventType;
+
+typedef struct
+{
+        char *seat_id;
+        int   seat_kind;
+} CkEventLoggerSeatAddedEvent;
+
+typedef struct
+{
+        char *seat_id;
+        int   seat_kind;
+} CkEventLoggerSeatRemovedEvent;
+
+typedef struct
+{
+        char    *seat_id;
+        char    *session_id;
+        char    *session_type;
+        char    *session_x11_display;
+        char    *session_x11_display_device;
+        char    *session_display_device;
+        char    *session_remote_host_name;
+        gboolean session_is_local;
+        guint    session_unix_user;
+        char    *session_creation_time;
+} CkEventLoggerSeatSessionAddedEvent;
+
+typedef struct
+{
+        char    *seat_id;
+        char    *session_id;
+        char    *session_type;
+        char    *session_x11_display;
+        char    *session_x11_display_device;
+        char    *session_display_device;
+        char    *session_remote_host_name;
+        gboolean session_is_local;
+        guint    session_unix_user;
+        char    *session_creation_time;
+} CkEventLoggerSeatSessionRemovedEvent;
+
+typedef struct
+{
+        char    *seat_id;
+        char    *session_id;
+} CkEventLoggerSeatActiveSessionChangedEvent;
+
+typedef struct
+{
+        char *seat_id;
+        char *device_type;
+        char *device_id;
+} CkEventLoggerSeatDeviceAddedEvent;
+
+typedef struct
+{
+        char *seat_id;
+        char *device_type;
+        char *device_id;
+} CkEventLoggerSeatDeviceRemovedEvent;
+
+typedef struct
+{
+        union {
+                CkEventLoggerSeatAddedEvent seat_added;
+                CkEventLoggerSeatRemovedEvent seat_removed;
+                CkEventLoggerSeatSessionAddedEvent seat_session_added;
+                CkEventLoggerSeatSessionRemovedEvent seat_session_removed;
+                CkEventLoggerSeatActiveSessionChangedEvent seat_active_session_changed;
+                CkEventLoggerSeatDeviceAddedEvent seat_device_added;
+                CkEventLoggerSeatDeviceRemovedEvent seat_device_removed;
+        } event;
+
+        GTimeVal               timestamp;
+        CkEventLoggerEventType type;
+} CkEventLoggerEvent;
+
+
+typedef enum
+{
+         CK_EVENT_LOGGER_ERROR_GENERAL
+} CkEventLoggerError;
+
+#define CK_EVENT_LOGGER_ERROR ck_event_logger_error_quark ()
+
+GQuark               ck_event_logger_error_quark         (void);
+GType                ck_event_logger_get_type            (void);
+CkEventLogger      * ck_event_logger_new                 (const char         *filename);
+
+gboolean             ck_event_logger_queue_event         (CkEventLogger      *event_logger,
+                                                          CkEventLoggerEvent *event,
+                                                          GError            **error);
+
+CkEventLoggerEvent * ck_event_logger_event_copy          (CkEventLoggerEvent *event);
+void                 ck_event_logger_event_free          (CkEventLoggerEvent *event);
+
+
+G_END_DECLS
+
+#endif /* __CK_EVENT_LOGGER_H */