statemachine.h

00001 #ifndef _SM_OBJECT_H
00002 #define _SM_OBJECT_H
00003 
00004 #include <glib.h>
00005 #include <glib-object.h>
00006 
00007 GQuark sm_error_quark (void);
00008 
00009 #define SM_ERROR (sm_error_quark ())
00010 
00011 typedef enum
00012 {
00013         SM_ERROR_INVALID_STATE = 0,
00014         SM_ERROR_NAME_IN_USE,
00015         SM_NUM_ERRORS
00016 } SMError;
00017 
00018 GType sm_error_get_type (void);
00019 #define SM_TYPE_ERROR (sm_error_get_type ())
00020 
00021 typedef enum
00022 {
00023         SM_OBJECT_STATE_SHUTDOWN = 0,
00024         SM_OBJECT_STATE_INITIALIZED,
00025         SM_OBJECT_STATE_ACQUIRED,
00026         SM_OBJECT_STATE_OPERATING,
00027         SM_OBJECT_NUM_STATES
00028 } SMObjectState;
00029 
00030 GType sm_object_state_get_type (void);
00031 
00032 #define SM_TYPE_OBJECT_STATE (sm_object_state_get_type ())
00033 
00034 typedef struct SMObject SMObject;
00035 typedef struct SMObjectClass SMObjectClass;
00036 
00037 struct SMObject
00038 {
00039   GObject parent;
00040 
00041   /* Private */
00042   char *name;
00043   SMObjectState state;
00044   double acquisition_progress;
00045 
00046   GSList /* guint */ *pending_tasks;
00047 
00048   SMObjectState requested_state;
00049 };
00050 
00051 struct SMObjectClass
00052 {
00053   GObjectClass parent;
00054 };
00055 
00056 #define SM_TYPE_OBJECT              (sm_object_get_type ())
00057 #define SM_OBJECT(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), SM_TYPE_OBJECT, SMObject))
00058 #define SM_OBJECT_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), SM_TYPE_OBJECT, SMObjectClass))
00059 #define SM_IS_OBJECT(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), SM_TYPE_OBJECT))
00060 #define SM_IS_OBJECT_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), SM_TYPE_OBJECT))
00061 #define SM_OBJECT_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), SM_TYPE_OBJECT, SMObjectClass))
00062 
00063 GType sm_object_get_type (void);
00064 
00065 gboolean sm_object_get_info (SMObject *object, char **name, char **state, GError **error);
00066 
00067 gboolean sm_object_start (SMObject *object, GError **error);
00068 
00069 gboolean sm_object_shutdown (SMObject *object, GError **error);
00070 
00071 gboolean sm_object_reinitialize (SMObject *object, GError **error);
00072 
00073 gboolean sm_object_reacquire (SMObject *object, GError **error);
00074 
00075 gboolean sm_object_get_acquiring_progress (SMObject *object, gdouble *out, GError **error);
00076 
00077 #endif

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