e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* SPDX-FileCopyrightText: 2008 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*/
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#include "BLI_compiler_attrs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BLI_MEM_BLOCK_CHUNK_SIZE (1 << 15) /* 32KiB */
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struct BLI_memblock;
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typedef struct BLI_memblock BLI_memblock;
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typedef void (*MemblockValFreeFP)(void *val);
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BLI_memblock *BLI_memblock_create_ex(uint elem_size, uint chunk_size) ATTR_WARN_UNUSED_RESULT;
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void *BLI_memblock_alloc(BLI_memblock *mblk) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
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/**
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* Reset elem count to 0 but keep as much memory allocated needed
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* for at least the previous elem count.
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*/
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void BLI_memblock_clear(BLI_memblock *mblk, MemblockValFreeFP free_callback) ATTR_NONNULL(1);
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void BLI_memblock_destroy(BLI_memblock *mblk, MemblockValFreeFP free_callback) ATTR_NONNULL(1);
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#define BLI_memblock_create(elem_size) BLI_memblock_create_ex(elem_size, BLI_MEM_BLOCK_CHUNK_SIZE)
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typedef struct BLI_memblock_iter {
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void **chunk_list;
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int cur_index;
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int end_index;
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int chunk_max_ofs;
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int chunk_idx;
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int elem_size;
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int elem_ofs;
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} BLI_memblock_iter;
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void BLI_memblock_iternew(BLI_memblock *mblk, BLI_memblock_iter *iter) ATTR_NONNULL();
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void *BLI_memblock_iterstep(BLI_memblock_iter *iter) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
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/**
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* Direct access. elem is element index inside the chosen chunk.
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* Double usage: You can set chunk to 0 and set the absolute elem index.
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* The correct chunk will be retrieve.
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*/
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void *BLI_memblock_elem_get(BLI_memblock *mblk, int chunk, int elem) ATTR_WARN_UNUSED_RESULT
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ATTR_NONNULL();
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#ifdef __cplusplus
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}
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#endif
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