mirror of https://gitee.com/openkylin/glib2.0.git
125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 2000-2001 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_BOXED_H__
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#define __G_BOXED_H__
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#if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
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#error "Only <glib-object.h> can be included directly."
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#endif
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#include <gobject/gtype.h>
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#ifndef __GI_SCANNER__
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#include <gobject/glib-types.h>
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#endif
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G_BEGIN_DECLS
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/* --- type macros --- */
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#define G_TYPE_IS_BOXED(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_BOXED)
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/**
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* G_VALUE_HOLDS_BOXED:
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* @value: a valid #GValue structure
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*
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* Checks whether the given #GValue can hold values derived
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* from type %G_TYPE_BOXED.
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*
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* Returns: %TRUE on success.
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*/
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#define G_VALUE_HOLDS_BOXED(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_BOXED))
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/* --- typedefs --- */
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/**
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* GBoxedCopyFunc:
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* @boxed: (not nullable): The boxed structure to be copied.
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*
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* This function is provided by the user and should produce a copy
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* of the passed in boxed structure.
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*
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* Returns: (not nullable): The newly created copy of the boxed structure.
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*/
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typedef gpointer (*GBoxedCopyFunc) (gpointer boxed);
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/**
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* GBoxedFreeFunc:
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* @boxed: (not nullable): The boxed structure to be freed.
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*
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* This function is provided by the user and should free the boxed
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* structure passed.
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*/
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typedef void (*GBoxedFreeFunc) (gpointer boxed);
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/* --- prototypes --- */
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GOBJECT_AVAILABLE_IN_ALL
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gpointer g_boxed_copy (GType boxed_type,
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gconstpointer src_boxed);
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GOBJECT_AVAILABLE_IN_ALL
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void g_boxed_free (GType boxed_type,
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gpointer boxed);
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GOBJECT_AVAILABLE_IN_ALL
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void g_value_set_boxed (GValue *value,
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gconstpointer v_boxed);
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GOBJECT_AVAILABLE_IN_ALL
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void g_value_set_static_boxed (GValue *value,
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gconstpointer v_boxed);
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GOBJECT_AVAILABLE_IN_ALL
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void g_value_take_boxed (GValue *value,
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gconstpointer v_boxed);
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GOBJECT_DEPRECATED_FOR(g_value_take_boxed)
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void g_value_set_boxed_take_ownership (GValue *value,
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gconstpointer v_boxed);
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GOBJECT_AVAILABLE_IN_ALL
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gpointer g_value_get_boxed (const GValue *value);
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GOBJECT_AVAILABLE_IN_ALL
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gpointer g_value_dup_boxed (const GValue *value);
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/* --- convenience --- */
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GOBJECT_AVAILABLE_IN_ALL
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GType g_boxed_type_register_static (const gchar *name,
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GBoxedCopyFunc boxed_copy,
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GBoxedFreeFunc boxed_free);
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/* --- GObject boxed types --- */
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/**
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* G_TYPE_CLOSURE:
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*
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* The #GType for #GClosure.
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*/
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#define G_TYPE_CLOSURE (g_closure_get_type ())
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/**
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* G_TYPE_VALUE:
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*
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* The type ID of the "GValue" type which is a boxed type,
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* used to pass around pointers to GValues.
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*/
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#define G_TYPE_VALUE (g_value_get_type ())
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GOBJECT_AVAILABLE_IN_ALL
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GType g_closure_get_type (void) G_GNUC_CONST;
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GOBJECT_AVAILABLE_IN_ALL
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GType g_value_get_type (void) G_GNUC_CONST;
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G_END_DECLS
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#endif /* __G_BOXED_H__ */
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