| /* GLIB - Library of useful routines for C programming |
| * gdataset-private.h: Internal macros for accessing dataset values |
| * Copyright (C) 2005 Red Hat |
| * |
| * SPDX-License-Identifier: LGPL-2.1-or-later |
| * |
| * 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 2.1 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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| /* |
| * Modified by the GLib Team and others 1997-2000. See the AUTHORS |
| * file for a list of people on the GLib Team. See the ChangeLog |
| * files for a list of changes. These files are distributed with |
| * GLib at ftp://ftp.gtk.org/pub/gtk/. |
| */ |
| |
| #ifndef __G_DATASETPRIVATE_H__ |
| #define __G_DATASETPRIVATE_H__ |
| |
| #include <gatomic.h> |
| |
| G_BEGIN_DECLS |
| |
| /* GET_FLAGS is implemented via atomic pointer access, to allow memory |
| * barriers to take effect without acquiring the global dataset mutex. |
| */ |
| #define G_DATALIST_GET_FLAGS(datalist) \ |
| ((gsize) g_atomic_pointer_get (datalist) & G_DATALIST_FLAGS_MASK) |
| |
| /*< private > |
| * GDataListUpdateAtomicFunc: |
| * @key_id: ID of the entry to update |
| * @data: (inout) (nullable) (not optional): the existing data corresponding |
| * to @key_id, and return location for the new value for it |
| * @destroy_notify: (inout) (nullable) (not optional): the existing destroy |
| * notify function for @data, and return location for the destroy notify |
| * function for the new value for it |
| * @user_data: user data passed in to [func@GLib.datalist_id_update_atomic] |
| * |
| * Callback from [func@GLib.datalist_id_update_atomic]. |
| * |
| * Since: 2.80 |
| */ |
| typedef gpointer (*GDataListUpdateAtomicFunc) (GQuark key_id, |
| gpointer *data, |
| GDestroyNotify *destroy_notify, |
| gpointer user_data); |
| |
| gpointer g_datalist_id_update_atomic (GData **datalist, |
| GQuark key_id, |
| GDataListUpdateAtomicFunc callback, |
| gpointer user_data); |
| |
| G_END_DECLS |
| |
| #endif /* __G_DATASETPRIVATE_H__ */ |
