/* GLIB sliced memory - fast threaded memory chunk allocator

 * Copyright (C) 2005 Tim Janik

 * Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 *

 * 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_SLICE_H__

#define __G_SLICE_H__

#ifndef __G_MEM_H__

#error Include <glib.h> instead of <gslice.h>

#endif

#include <glib/gtypes.h>

G_BEGIN_DECLS

/* slices - fast allocation/release of small memory blocks

 */

IMPORT_C gpointer g_slice_alloc          	(gsize	  block_size) G_GNUC_MALLOC;

IMPORT_C gpointer g_slice_alloc0         	(gsize    block_size) G_GNUC_MALLOC;

IMPORT_C void     g_slice_free1          	(gsize    block_size,

					 gpointer mem_block);

IMPORT_C void     g_slice_free_chain_with_offset (gsize    block_size,

					 gpointer mem_chain,

					 gsize    next_offset);

#define  g_slice_new(type)      ((type*) g_slice_alloc (sizeof (type)))

#define  g_slice_new0(type)     ((type*) g_slice_alloc0 (sizeof (type)))

/*       g_slice_free                   (MemoryBlockType,

 *	                                 MemoryBlockType *mem_block);

 *       g_slice_free_chain             (MemoryBlockType,

 *                                       MemoryBlockType *first_chain_block,

 *                                       memory_block_next_field);

 * pseudo prototypes for the macro

 * definitions following below.

 */

/* we go through extra hoops to ensure type safety */

#define g_slice_free(type, mem)				do {	\

  if (1) g_slice_free1 (sizeof (type), (mem));			\

  else   (void) ((type*) 0 == (mem)); 				\

} while (0)

#define g_slice_free_chain(type, mem_chain, next)	do {	\

  if (1) g_slice_free_chain_with_offset (sizeof (type),		\

                 (mem_chain), G_STRUCT_OFFSET (type, next)); 	\

  else   (void) ((type*) 0 == (mem_chain));			\

} while (0)

/* --- internal debugging API --- */

typedef enum {

  G_SLICE_CONFIG_ALWAYS_MALLOC = 1,

  G_SLICE_CONFIG_BYPASS_MAGAZINES,

  G_SLICE_CONFIG_WORKING_SET_MSECS,

  G_SLICE_CONFIG_COLOR_INCREMENT,

  G_SLICE_CONFIG_CHUNK_SIZES,

  G_SLICE_CONFIG_CONTENTION_COUNTER

} GSliceConfig;

void     g_slice_set_config	   (GSliceConfig ckey, gint64 value);

gint64   g_slice_get_config	   (GSliceConfig ckey);

gint64*  g_slice_get_config_state  (GSliceConfig ckey, gint64 address, guint *n_values);

G_END_DECLS

#endif /* __G_SLICE_H__ */