gtype.h

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						      GQuark           quark,
						      gpointer         data);
gpointer              g_type_get_qdata               (GType            type,
						      GQuark           quark);
void		      g_type_query		     (GType	       type,
						      GTypeQuery      *query);


/* --- type registration --- */
typedef void   (*GBaseInitFunc)              (gpointer         g_class);
typedef void   (*GBaseFinalizeFunc)          (gpointer         g_class);
typedef void   (*GClassInitFunc)             (gpointer         g_class,
					      gpointer         class_data);
typedef void   (*GClassFinalizeFunc)         (gpointer         g_class,
					      gpointer         class_data);
typedef void   (*GInstanceInitFunc)          (GTypeInstance   *instance,
					      gpointer         g_class);
typedef void   (*GInterfaceInitFunc)         (gpointer         g_iface,
					      gpointer         iface_data);
typedef void   (*GInterfaceFinalizeFunc)     (gpointer         g_iface,
					      gpointer         iface_data);
typedef gboolean (*GTypeClassCacheFunc)	     (gpointer	       cache_data,
					      GTypeClass      *g_class);
typedef enum    /*< skip >*/
{
  G_TYPE_FLAG_CLASSED           = (1 << 0),
  G_TYPE_FLAG_INSTANTIATABLE    = (1 << 1),
  G_TYPE_FLAG_DERIVABLE         = (1 << 2),
  G_TYPE_FLAG_DEEP_DERIVABLE    = (1 << 3)
} GTypeFundamentalFlags;
typedef enum    /*< skip >*/
{
  G_TYPE_FLAG_ABSTRACT		= (1 << 4),
  G_TYPE_FLAG_VALUE_ABSTRACT	= (1 << 5)
} GTypeFlags;
struct _GTypeInfo
{
  /* interface types, classed types, instantiated types */
  guint16                class_size;
  
  GBaseInitFunc          base_init;
  GBaseFinalizeFunc      base_finalize;
  
  /* classed types, instantiated types */
  GClassInitFunc         class_init;
  GClassFinalizeFunc     class_finalize;
  gconstpointer          class_data;
  
  /* instantiated types */
  guint16                instance_size;
  guint16                n_preallocs;
  GInstanceInitFunc      instance_init;
  
  /* value handling */
  const GTypeValueTable	*value_table;
};
struct _GTypeFundamentalInfo
{
  GTypeFundamentalFlags  type_flags;
};
struct _GInterfaceInfo
{
  GInterfaceInitFunc     interface_init;
  GInterfaceFinalizeFunc interface_finalize;
  gpointer               interface_data;
};
struct _GTypeValueTable
{
  void     (*value_init)         (GValue       *value);
  void     (*value_free)         (GValue       *value);
  void     (*value_copy)         (const GValue *src_value,
				  GValue       *dest_value);
  /* varargs functionality (optional) */
  gpointer (*value_peek_pointer) (const GValue *value);
  gchar	    *collect_format;
  gchar*   (*collect_value)      (GValue       *value,
				  guint         n_collect_values,
				  GTypeCValue  *collect_values,
				  guint		collect_flags);
  gchar	    *lcopy_format;
  gchar*   (*lcopy_value)        (const GValue *value,
				  guint         n_collect_values,
				  GTypeCValue  *collect_values,
				  guint		collect_flags);
};
GType g_type_register_static		(GType			     parent_type,
					 const gchar		    *type_name,
					 const GTypeInfo	    *info,
					 GTypeFlags		     flags);
GType g_type_register_dynamic		(GType			     parent_type,
					 const gchar		    *type_name,
					 GTypePlugin		    *plugin,
					 GTypeFlags		     flags);
GType g_type_register_fundamental	(GType			     type_id,
					 const gchar		    *type_name,
					 const GTypeInfo	    *info,
					 const GTypeFundamentalInfo *finfo,
					 GTypeFlags		     flags);
void  g_type_add_interface_static	(GType			     instance_type,
					 GType			     interface_type,
					 const GInterfaceInfo	    *info);
void  g_type_add_interface_dynamic	(GType			     instance_type,
					 GType			     interface_type,
					 GTypePlugin		    *plugin);
void  g_type_interface_add_prerequisite (GType			     interface_type,
					 GType			     prerequisite_type);


/* --- protected (for fundamental type implementations) --- */
GTypePlugin*	 g_type_get_plugin		(GType		     type);
GTypePlugin*	 g_type_interface_get_plugin	(GType		     instance_type,
						 GType               implementation_type);
GType		 g_type_fundamental_next	(void);
GType		 g_type_fundamental		(GType		     type_id);
GTypeInstance*   g_type_create_instance         (GType               type);
void             g_type_free_instance           (GTypeInstance      *instance);
void		 g_type_add_class_cache_func    (gpointer	     cache_data,
						 GTypeClassCacheFunc cache_func);
void		 g_type_remove_class_cache_func (gpointer	     cache_data,
						 GTypeClassCacheFunc cache_func);
void             g_type_class_unref_uncached    (gpointer            g_class);
GTypeValueTable* g_type_value_table_peek        (GType		     type);


/*< private >*/
gboolean	 g_type_check_instance          (GTypeInstance      *instance);
GTypeInstance*   g_type_check_instance_cast     (GTypeInstance      *instance,
						 GType               iface_type);
gboolean         g_type_check_instance_is_a	(GTypeInstance      *instance,
						 GType               iface_type);
GTypeClass*      g_type_check_class_cast        (GTypeClass         *g_class,
						 GType               is_a_type);
gboolean         g_type_check_class_is_a        (GTypeClass         *g_class,
						 GType               is_a_type);
gboolean	 g_type_check_is_value_type     (GType		     type);
gboolean	 g_type_check_value             (GValue		    *value);
gboolean	 g_type_check_value_holds	(GValue		    *value,
						 GType		     type);
gboolean         g_type_test_flags              (GType               type,
						 guint               flags);


/* --- debugging functions --- */
G_CONST_RETURN gchar* g_type_name_from_instance	(GTypeInstance	*instance);
G_CONST_RETURN gchar* g_type_name_from_class	(GTypeClass	*g_class);


/* --- implementation bits --- */
#ifndef G_DISABLE_CAST_CHECKS
#  define _G_TYPE_CIC(ip, gt, ct) \
    ((ct*) g_type_check_instance_cast ((GTypeInstance*) ip, gt))
#  define _G_TYPE_CCC(cp, gt, ct) \
    ((ct*) g_type_check_class_cast ((GTypeClass*) cp, gt))
#else /* G_DISABLE_CAST_CHECKS */
#  define _G_TYPE_CIC(ip, gt, ct)       ((ct*) ip)
#  define _G_TYPE_CCC(cp, gt, ct)       ((ct*) cp)
#endif /* G_DISABLE_CAST_CHECKS */
#define _G_TYPE_CHI(ip)			(g_type_check_instance ((GTypeInstance*) ip))
#define _G_TYPE_CVH(vl, gt)             (g_type_check_value_holds ((GValue*) vl, gt))
#define _G_TYPE_CHV(vl)			(g_type_check_value ((GValue*) vl))
#define _G_TYPE_IGC(ip, gt, ct)         ((ct*) (((GTypeInstance*) ip)->g_class))
#define _G_TYPE_IGI(ip, gt, ct)         ((ct*) g_type_interface_peek (((GTypeInstance*) ip)->g_class, gt))
#ifdef	__GNUC__
#  define _G_TYPE_CIT(ip, gt)             (G_GNUC_EXTENSION ({ \
  GTypeInstance *__inst = (GTypeInstance*) ip; GType __t = gt; gboolean __r; \
  if (__inst && __inst->g_class && __inst->g_class->g_type == __t) \
    __r = TRUE; \
  else \
    __r = g_type_check_instance_is_a (__inst, __t); \
  __r; \
}))
#  define _G_TYPE_CCT(cp, gt)             (G_GNUC_EXTENSION ({ \
  GTypeClass *__class = (GTypeClass*) cp; GType __t = gt; gboolean __r; \
  if (__class && __class->g_type == __t) \
    __r = TRUE; \
  else \
    __r = g_type_check_class_is_a (__class, __t); \
  __r; \
}))
#else  /* !__GNUC__ */
#  define _G_TYPE_CIT(ip, gt)             (g_type_check_instance_is_a ((GTypeInstance*) ip, gt))
#  define _G_TYPE_CCT(cp, gt)             (g_type_check_class_is_a ((GTypeClass*) cp, gt))
#endif /* !__GNUC__ */
#define	G_TYPE_FLAG_RESERVED_ID_BIT	((GType) (1 << 0))
extern GTypeDebugFlags			_g_type_debug_flags;

G_END_DECLS

#endif /* __G_TYPE_H__ */