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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2008 Blender Foundation.
* All rights reserved.
*/
#ifndef __BLI_MEMBLOCK_H__
#define __BLI_MEMBLOCK_H__
/** \file
* \ingroup bli
*/
#include "BLI_compiler_attrs.h"
#ifdef __cplusplus
extern "C" {
#endif
#define BLI_MEM_BLOCK_CHUNK_SIZE (1 << 15) /* 32KiB */
struct BLI_memblock;
typedef struct BLI_memblock BLI_memblock;
typedef void (*MemblockValFreeFP)(void *val);
BLI_memblock *BLI_memblock_create_ex(uint elem_size, uint chunk_size) ATTR_WARN_UNUSED_RESULT;
void *BLI_memblock_alloc(BLI_memblock *mblk) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void BLI_memblock_clear(BLI_memblock *mblk, MemblockValFreeFP valfreefp) ATTR_NONNULL(1);
void BLI_memblock_destroy(BLI_memblock *mblk, MemblockValFreeFP free_callback) ATTR_NONNULL(1);
#define BLI_memblock_create(elem_size) BLI_memblock_create_ex(elem_size, BLI_MEM_BLOCK_CHUNK_SIZE)
typedef struct BLI_memblock_iter {
void **chunk_list;
int cur_index;
int end_index;
int chunk_max_ofs;
int chunk_idx;
int elem_size;
int elem_ofs;
} BLI_memblock_iter;
void BLI_memblock_iternew(BLI_memblock *pool, BLI_memblock_iter *iter) ATTR_NONNULL();
void *BLI_memblock_iterstep(BLI_memblock_iter *iter) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
void *BLI_memblock_elem_get(BLI_memblock *mblk, int chunk, int elem) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
#ifdef __cplusplus
}
#endif
#endif /* __BLI_MEMBLOCK_H__ */
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