mirror of https://gitee.com/openkylin/glib2.0.git
137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 2000 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_TYPE_PLUGIN_H__
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#define __G_TYPE_PLUGIN_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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G_BEGIN_DECLS
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/* --- type macros --- */
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#define G_TYPE_TYPE_PLUGIN (g_type_plugin_get_type ())
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#define G_TYPE_PLUGIN(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), G_TYPE_TYPE_PLUGIN, GTypePlugin))
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#define G_TYPE_PLUGIN_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), G_TYPE_TYPE_PLUGIN, GTypePluginClass))
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#define G_IS_TYPE_PLUGIN(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), G_TYPE_TYPE_PLUGIN))
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#define G_IS_TYPE_PLUGIN_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), G_TYPE_TYPE_PLUGIN))
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#define G_TYPE_PLUGIN_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), G_TYPE_TYPE_PLUGIN, GTypePluginClass))
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/* --- typedefs & structures --- */
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typedef struct _GTypePluginClass GTypePluginClass;
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/**
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* GTypePluginUse:
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* @plugin: the #GTypePlugin whose use count should be increased
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*
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* The type of the @use_plugin function of #GTypePluginClass, which gets called
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* to increase the use count of @plugin.
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*/
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typedef void (*GTypePluginUse) (GTypePlugin *plugin);
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/**
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* GTypePluginUnuse:
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* @plugin: the #GTypePlugin whose use count should be decreased
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*
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* The type of the @unuse_plugin function of #GTypePluginClass.
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*/
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typedef void (*GTypePluginUnuse) (GTypePlugin *plugin);
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/**
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* GTypePluginCompleteTypeInfo:
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* @plugin: the #GTypePlugin
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* @g_type: the #GType whose info is completed
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* @info: the #GTypeInfo struct to fill in
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* @value_table: the #GTypeValueTable to fill in
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*
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* The type of the @complete_type_info function of #GTypePluginClass.
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*/
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typedef void (*GTypePluginCompleteTypeInfo) (GTypePlugin *plugin,
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GType g_type,
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GTypeInfo *info,
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GTypeValueTable *value_table);
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/**
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* GTypePluginCompleteInterfaceInfo:
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* @plugin: the #GTypePlugin
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* @instance_type: the #GType of an instantiatable type to which the interface
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* is added
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* @interface_type: the #GType of the interface whose info is completed
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* @info: the #GInterfaceInfo to fill in
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*
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* The type of the @complete_interface_info function of #GTypePluginClass.
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*/
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typedef void (*GTypePluginCompleteInterfaceInfo) (GTypePlugin *plugin,
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GType instance_type,
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GType interface_type,
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GInterfaceInfo *info);
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/**
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* GTypePlugin:
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*
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* The GTypePlugin typedef is used as a placeholder
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* for objects that implement the GTypePlugin interface.
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*/
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/**
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* GTypePluginClass:
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* @use_plugin: Increases the use count of the plugin.
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* @unuse_plugin: Decreases the use count of the plugin.
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* @complete_type_info: Fills in the #GTypeInfo and
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* #GTypeValueTable structs for the type. The structs are initialized
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* with `memset(s, 0, sizeof (s))` before calling this function.
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* @complete_interface_info: Fills in missing parts of the #GInterfaceInfo
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* for the interface. The structs is initialized with
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* `memset(s, 0, sizeof (s))` before calling this function.
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*
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* The #GTypePlugin interface is used by the type system in order to handle
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* the lifecycle of dynamically loaded types.
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*/
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struct _GTypePluginClass
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{
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/*< private >*/
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GTypeInterface base_iface;
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/*< public >*/
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GTypePluginUse use_plugin;
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GTypePluginUnuse unuse_plugin;
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GTypePluginCompleteTypeInfo complete_type_info;
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GTypePluginCompleteInterfaceInfo complete_interface_info;
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};
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/* --- prototypes --- */
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GOBJECT_AVAILABLE_IN_ALL
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GType g_type_plugin_get_type (void) G_GNUC_CONST;
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GOBJECT_AVAILABLE_IN_ALL
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void g_type_plugin_use (GTypePlugin *plugin);
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GOBJECT_AVAILABLE_IN_ALL
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void g_type_plugin_unuse (GTypePlugin *plugin);
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GOBJECT_AVAILABLE_IN_ALL
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void g_type_plugin_complete_type_info (GTypePlugin *plugin,
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GType g_type,
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GTypeInfo *info,
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GTypeValueTable *value_table);
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GOBJECT_AVAILABLE_IN_ALL
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void g_type_plugin_complete_interface_info (GTypePlugin *plugin,
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GType instance_type,
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GType interface_type,
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GInterfaceInfo *info);
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G_END_DECLS
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#endif /* __G_TYPE_PLUGIN_H__ */
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