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glib/gobject/gtype.h
Tim Janik ee23c09e83 added newly added gobject/ headers. 
Tue Oct 24 22:09:14 2000  Tim Janik  <timj@gtk.org>

        * glib-object.h: added newly added gobject/ headers.

        * gmesage.c: print g_message() output to stderr instead of stdout.

Wed Oct 25 20:27:02 2000  Tim Janik  <timj@gtk.org>

        * gtype.c (g_type_free_instance): for the moment, freeing object
        structures will fill their memory portion with 0xAA. there's a
        FIXME there, remove this line at a later point.

Tue Oct 24 23:10:26 2000  Tim Janik  <timj@gtk.org>

        * glib-genmarshal.1:
        * glib-genmarshal.c: added publically installed marshaller generator.

        * gtype.h: added G_TYPE_INSTANCE_GET_INTERFACE() to retrive a certain
        interface VTable from instances.

Mon Oct 23 08:28:15 2000  Tim Janik  <timj@gtk.org>

        * gobject.[hc]: new functions for closure maintenance:
        (g_object_watch_closure): maintain validity of the object and
        the closure for objects that are used as data part of a closure.
        (g_cclosure_new_object): convenience function to create C closures
        that have an object as data argument.
        (g_closure_new_object): convenience function to create closures
        that have an object as data argument.

        * gclosure.[hc]: implementation of GClosure mechanism.
        a closure is basically an encapsulation of a callback function
        and its environment. ideally, most places supporting callback
        functions will simply take a GClosure* pointer and thus unify
        callback environments wrg destroy notification etc.
        GClosure provides destroy notifiers for arbitrary data pointers,
        reference counting, invalidation notification (it can be invalidated
        which is merely a deactivate state) and a marshallinbg abstraction.
        GCClosure is also provided in these files, they present a specialized
        GClosure implementation for C language callbacks.

        * genum.c: macro cleanups.

        * gboxed.[hc]: new files, for boxed type abstraction.
        (g_boxed_copy): copy a boxed structure
        (g_boxed_free): free a boxed structure
        (g_value_set_boxed):
        (g_value_get_boxed): standard GValue functions for boxed types
        (g_boxed_type_register_static): convenience function for easy
        introduction of new G_TYPE_BOXED derivatives.

        * gparam.[hc]: introduced g_param_type_register_static(), a short hand
        for creation of new GParamSpec derived types.

        * gtype.[hc]: many fixes, introduced ability to flag individual
        type nodes as ABSTRACT upon registration, added value_peek_pointer()
        to the value table to peek at GValue contents as a pointer for types
        that support this. fixed up GValue checks.

        * gvalue.[hc]: added g_value_fits_pointer() and g_value_get_as_pointer()
        to peek at the value contents as pointer.

        * *.[hc]: adaptions to type macro fixes and changes in the type
        registration API.

        * many const corrections over the place.

Sat Oct 21 02:49:56 2000  Tim Janik  <timj@gtk.org>

        * gtype.c (g_type_conforms_to): this function basically behaves like
        and is_a check, except that it _additionally_ features interfaces
        for instantiatable types. enforce this in the second branch as well
        (`type' conforms_to `type') even if `type' is not an interface type.

Fri Oct 20 15:31:04 2000  Tim Janik  <timj@gtk.org>

        * gvaluetypes.[hc]: added G_TYPE_POINTER implementation from jrb.

        * gtype.[hc]:
        * gobject.c:
        * gvaluetypes.c: added GTypeValueTable.value_peek_pointer and
        suitable implementations of this for G_TYPE_STRING, G_TYPE_OBJECT
        and G_TYPE_POINTER.

Mon Aug 21 04:13:37 2000  Tim Janik  <timj@gtk.org>

        * gbsearcharray.[hc]: long standing needed generic implementation
        of a binary searchable, sorted and dynamically sized array.
2000-10-25 20:36:35 +00:00

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/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 1998, 1999, 2000 Tim Janik and Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __G_TYPE_H__
#define __G_TYPE_H__
extern const char *g_log_domain_gobject;
#include <glib.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Basic Type Macros
*/
#define G_TYPE_FUNDAMENTAL(type) ((type) & 0xff)
#define G_TYPE_FUNDAMENTAL_MAX (0xff)
#define G_TYPE_DERIVE_ID(ptype, branch_seqno) (G_TYPE_FUNDAMENTAL (ptype) | ((branch_seqno) << 8))
#define G_TYPE_BRANCH_SEQNO(type) ((type) >> 8)
#define G_TYPE_FUNDAMENTAL_LAST ((GType) g_type_fundamental_last ())
/* predefined fundamental and derived types
*/
typedef enum /*< skip >*/
{
/* standard types, introduced by g_type_init() */
G_TYPE_INVALID,
G_TYPE_NONE,
G_TYPE_INTERFACE,
/* GLib type ids */
G_TYPE_CHAR,
G_TYPE_UCHAR,
G_TYPE_BOOLEAN,
G_TYPE_INT,
G_TYPE_UINT,
G_TYPE_LONG,
G_TYPE_ULONG,
G_TYPE_ENUM,
G_TYPE_FLAGS,
G_TYPE_FLOAT,
G_TYPE_DOUBLE,
G_TYPE_STRING,
G_TYPE_PARAM,
G_TYPE_BOXED,
G_TYPE_POINTER,
G_TYPE_OBJECT,
/* the following reserved ids should vanish soon */
G_TYPE_GTK_SIGNAL,
/* reserved fundamental type ids,
* mail gtk-devel-list@redhat.com for reservations
*/
G_TYPE_BSE_PROCEDURE,
G_TYPE_BSE_TIME,
G_TYPE_BSE_NOTE,
G_TYPE_BSE_DOTS,
G_TYPE_GLE_GOBJECT,
G_TYPE_LAST_RESERVED_FUNDAMENTAL,
/* derived type ids */
/* FIXME: G_TYPE_PARAM_INTERFACE */
G_TYPE_PARAM_CHAR = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 1),
G_TYPE_PARAM_UCHAR = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 2),
G_TYPE_PARAM_BOOLEAN = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 3),
G_TYPE_PARAM_INT = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 4),
G_TYPE_PARAM_UINT = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 5),
G_TYPE_PARAM_LONG = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 6),
G_TYPE_PARAM_ULONG = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 7),
G_TYPE_PARAM_ENUM = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 8),
G_TYPE_PARAM_FLAGS = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 9),
G_TYPE_PARAM_FLOAT = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 10),
G_TYPE_PARAM_DOUBLE = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 11),
G_TYPE_PARAM_STRING = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 12),
/* FIXME: G_TYPE_PARAM_PARAM */
G_TYPE_PARAM_OBJECT = G_TYPE_DERIVE_ID (G_TYPE_PARAM, 13)
} GTypeFundamentals;
/* Type Checking Macros
*/
#define G_TYPE_IS_FUNDAMENTAL(type) (G_TYPE_BRANCH_SEQNO (type) == 0)
#define G_TYPE_IS_INTERFACE(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_INTERFACE)
#define G_TYPE_IS_CLASSED(type) (g_type_check_flags ((type), G_TYPE_FLAG_CLASSED))
#define G_TYPE_IS_INSTANTIATABLE(type) (g_type_check_flags ((type), G_TYPE_FLAG_INSTANTIATABLE))
#define G_TYPE_IS_DERIVABLE(type) (g_type_check_flags ((type), G_TYPE_FLAG_DERIVABLE))
#define G_TYPE_IS_DEEP_DERIVABLE(type) (g_type_check_flags ((type), G_TYPE_FLAG_DEEP_DERIVABLE))
#define G_TYPE_IS_ABSTRACT(type) (g_type_check_flags ((type), G_TYPE_FLAG_ABSTRACT))
#define G_TYPE_IS_PARAM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_PARAM)
#define G_TYPE_IS_VALUE_TYPE(type) (g_type_value_table_peek (type) != NULL)
/* Typedefs
*/
typedef guint32 GType;
typedef struct _GValue GValue;
typedef union _GTypeCValue GTypeCValue;
typedef struct _GTypePlugin GTypePlugin;
typedef struct _GTypePluginVTable GTypePluginVTable;
typedef struct _GTypeClass GTypeClass;
typedef struct _GTypeInterface GTypeInterface;
typedef struct _GTypeInstance GTypeInstance;
typedef struct _GTypeInfo GTypeInfo;
typedef struct _GTypeFundamentalInfo GTypeFundamentalInfo;
typedef struct _GInterfaceInfo GInterfaceInfo;
typedef struct _GTypeValueTable GTypeValueTable;
/* Basic Type Structures
*/
struct _GTypeClass
{
/*< private >*/
GType g_type;
};
struct _GTypeInstance
{
/*< private >*/
GTypeClass *g_class;
};
struct _GTypeInterface
{
/*< private >*/
GType g_type; /* iface type */
GType g_instance_type;
};
/* Casts, checks and accessors for structured types
* usage of these macros is reserved to type implementations only
*
*/
/*< protected >*/
#define G_TYPE_CHECK_INSTANCE(instance) (_G_TYPE_CHI ((GTypeInstance*) (instance)))
#define G_TYPE_CHECK_INSTANCE_CAST(instance, g_type, c_type) (_G_TYPE_CIC ((instance), (g_type), c_type))
#define G_TYPE_CHECK_INSTANCE_TYPE(instance, g_type) (_G_TYPE_CIT ((instance), (g_type)))
#define G_TYPE_INSTANCE_GET_CLASS(instance, g_type, c_type) (_G_TYPE_IGC ((instance), c_type))
#define G_TYPE_INSTANCE_GET_INTERFACE(instance, g_type, c_type) (_G_TYPE_IGI ((instance), (g_type), c_type))
#define G_TYPE_CHECK_CLASS_CAST(g_class, g_type, c_type) (_G_TYPE_CCC ((g_class), (g_type), c_type))
#define G_TYPE_CHECK_CLASS_TYPE(g_class, g_type) (_G_TYPE_CCT ((g_class), (g_type)))
#define G_TYPE_CHECK_VALUE(value) (_G_TYPE_CHV ((value)))
#define G_TYPE_CHECK_VALUE_TYPE(value, g_type) (_G_TYPE_CVT ((value), (g_type)))
#define G_TYPE_FROM_INSTANCE(instance) (G_TYPE_FROM_CLASS (((GTypeInstance*) (instance))->g_class))
#define G_TYPE_FROM_CLASS(g_class) (((GTypeClass*) (g_class))->g_type)
#define G_TYPE_FROM_INTERFACE(g_iface) (((GTypeInterface*) (g_iface))->g_type)
/* --- prototypes --- */
void g_type_init (void);
gchar* g_type_name (GType type);
GQuark g_type_qname (GType type);
GType g_type_from_name (const gchar *name);
GType g_type_parent (GType type);
GType g_type_next_base (GType type,
GType base_type);
gboolean g_type_is_a (GType type,
GType is_a_type);
gboolean g_type_conforms_to (GType type,
GType iface_type);
guint g_type_fundamental_branch_last (GType type);
gpointer g_type_class_ref (GType type);
gpointer g_type_class_peek (GType type);
void g_type_class_unref (gpointer g_class);
gpointer g_type_class_peek_parent (gpointer g_class);
gpointer g_type_interface_peek (gpointer instance_class,
GType iface_type);
/* g_free() the returned arrays */
GType* g_type_children (GType type,
guint *n_children);
GType* g_type_interfaces (GType type,
guint *n_interfaces);
/* per-type _static_ data */
void g_type_set_qdata (GType type,
GQuark quark,
gpointer data);
gpointer g_type_get_qdata (GType type,
GQuark quark);
/* --- 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 void (*GTypePluginRef) (GTypePlugin *plugin);
typedef void (*GTypePluginUnRef) (GTypePlugin *plugin);
typedef void (*GTypePluginFillTypeInfo) (GTypePlugin *plugin,
GType g_type,
GTypeInfo *info,
GTypeValueTable *value_table);
typedef void (*GTypePluginFillInterfaceInfo) (GTypePlugin *plugin,
GType interface_type,
GType instance_type,
GInterfaceInfo *info);
typedef gboolean (*GTypeClassCacheFunc) (gpointer cache_data,
GTypeClass *g_class);
struct _GTypePlugin
{
GTypePluginVTable *vtable;
};
struct _GTypePluginVTable
{
GTypePluginRef plugin_ref;
GTypePluginUnRef plugin_unref;
GTypePluginFillTypeInfo complete_type_info;
GTypePluginFillInterfaceInfo complete_interface_info;
};
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)
} 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);
guint collect_type;
gchar* (*collect_value) (GValue *value,
guint nth_value,
GType *collect_type,
GTypeCValue *collect_value);
guint lcopy_type;
gchar* (*lcopy_value) (const GValue *value,
guint nth_value,
GType *collect_type,
GTypeCValue *collect_value);
};
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);
/* --- protected (for fundamental type implementations) --- */
GTypePlugin* g_type_get_plugin (GType type);
GType g_type_fundamental_last (void);
gboolean g_type_check_flags (GType type,
guint flags);
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);
/*< private >*/
GTypeClass* g_type_check_class_cast (GTypeClass *g_class,
GType is_a_type);
gboolean g_type_class_is_a (GTypeClass *g_class,
GType is_a_type);
GTypeInstance* g_type_check_instance_cast (GTypeInstance *instance,
GType iface_type);
gboolean g_type_instance_conforms_to (GTypeInstance *instance,
GType iface_type);
gboolean g_type_check_value (GValue *value);
gboolean g_type_value_conforms_to (GValue *value,
GType type);
gboolean g_type_check_instance (GTypeInstance *instance);
GTypeValueTable* g_type_value_table_peek (GType type);
#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_CIT(ip, gt) (g_type_instance_conforms_to ((GTypeInstance*) ip, gt))
#define _G_TYPE_CCT(cp, gt) (g_type_class_is_a ((GTypeClass*) cp, gt))
#define _G_TYPE_CVT(vl, gt) (g_type_value_conforms_to ((GValue*) vl, gt))
#define _G_TYPE_CHV(vl) (g_type_check_value ((GValue*) vl))
#define _G_TYPE_IGC(ip, ct) ((ct*) (((GTypeInstance*) ip)->g_class))
#define _G_TYPE_IGI(ip, gt, ct) ((ct*) g_type_interface_peek (((GTypeInstance*) ip)->g_class, gt))
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __G_TYPE_H__ */
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