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/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 2009 Benjamin Otte <otte@gnome.org>
*
* 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.
*/
#if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
#error "Only <glib-object.h> can be included directly."
#endif
#ifndef __G_ATOMIC_ARRAY_H__
#define __G_ATOMIC_ARRAY_H__
#include <glib/glib.h>
G_BEGIN_DECLS
#define G_ATOMIC_ARRAY_DATA_SIZE(mem) (*((gsize *) (mem) - 1))
typedef struct _GAtomicArray GAtomicArray;
struct _GAtomicArray {
volatile gpointer data; /* elements - atomic */
};
void _g_atomic_array_init (GAtomicArray *array);
gpointer _g_atomic_array_copy (GAtomicArray *array,
gsize header_size,
gsize additional_element_size);
void _g_atomic_array_update (GAtomicArray *array,
gpointer new_data);
#define G_ATOMIC_ARRAY_GET_LOCKED(_array, _type) ((_type *)((_array)->data))
#define G_ATOMIC_ARRAY_DO_TRANSACTION(_array, _type, _C_) G_STMT_START { \
volatile gpointer *_datap = &(_array)->data; \
_type *transaction_data, *__check; \
\
__check = g_atomic_pointer_get (_datap); \
do { \
transaction_data = __check; \
{_C_;} \
__check = g_atomic_pointer_get (_datap); \
} while (transaction_data != __check); \
} G_STMT_END
G_END_DECLS
#endif /* __G_ATOMIC_ARRAY_H__ */
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