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blender-archive/source/blender/blenlib/BLI_memblock.h

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BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
/*
* 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.
*/
#pragma once
/** \file
* \ingroup bli
*/
Cleanup: take includes out of 'extern "C"' blocks Surrounding includes with an 'extern "C"' block is not necessary anymore. Also that made it harder to add any C++ code to some headers, or include headers that have "optional" C++ code like `MEM_guardedalloc.h`. I tested compilation on linux and windows (and got help from @LazyDodo). If this still breaks compilation due to some linker error, the header containing the symbol in question is probably missing an 'extern "C"' block. Differential Revision: https://developer.blender.org/D7653
2020-05-08 18:16:39 +02:00
#include "BLI_compiler_attrs.h"
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
#ifdef __cplusplus
extern "C" {
#endif
DRW: Refactor to support draw call batching Reviewers: brecht Differential Revision: D4997
2019-05-31 01:45:41 +02:00
#define BLI_MEM_BLOCK_CHUNK_SIZE (1 << 15) /* 32KiB */
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
struct BLI_memblock;
typedef struct BLI_memblock BLI_memblock;
BLI_memblock: Add more options - Use int instead of uint for safety and less conversions. - Add free callback - Add cleared alloc option
2019-05-13 15:57:03 +02:00
typedef void (*MemblockValFreeFP)(void *val);
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
DRW: Refactor to support draw call batching Reviewers: brecht Differential Revision: D4997
2019-05-31 01:45:41 +02:00
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);
Cleanup: Clang-Tidy readability-inconsistent-declaration-parameter-name fix No functional changes
2020-09-04 20:59:13 +02:00
void BLI_memblock_clear(BLI_memblock *mblk, MemblockValFreeFP free_callback) ATTR_NONNULL(1);
BLI_memblock: Add more options - Use int instead of uint for safety and less conversions. - Add free callback - Add cleared alloc option
2019-05-13 15:57:03 +02:00
void BLI_memblock_destroy(BLI_memblock *mblk, MemblockValFreeFP free_callback) ATTR_NONNULL(1);
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
DRW: Refactor to support draw call batching Reviewers: brecht Differential Revision: D4997
2019-05-31 01:45:41 +02:00
#define BLI_memblock_create(elem_size) BLI_memblock_create_ex(elem_size, BLI_MEM_BLOCK_CHUNK_SIZE)
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
typedef struct BLI_memblock_iter {
BLI_memblock: Refactor for faster iteration and allocation Remove the clear allocation flag as it has little impact since there should be very few allocation per redraw. Make BLI_memblock_alloc and BLI_memblock_iterstep much more cache efficient removing them almost entirely from performance profiles.
2019-05-21 00:54:03 +02:00
void **chunk_list;
int cur_index;
int end_index;
int chunk_max_ofs;
int chunk_idx;
int elem_size;
int elem_ofs;
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
} BLI_memblock_iter;
Cleanup: Clang-Tidy readability-inconsistent-declaration-parameter-name fix No functional changes
2020-09-04 20:59:13 +02:00
void BLI_memblock_iternew(BLI_memblock *mblk, BLI_memblock_iter *iter) ATTR_NONNULL();
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
void *BLI_memblock_iterstep(BLI_memblock_iter *iter) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
DRW: Refactor to support draw call batching Reviewers: brecht Differential Revision: D4997
2019-05-31 01:45:41 +02:00
void *BLI_memblock_elem_get(BLI_memblock *mblk, int chunk, int elem) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
BLI_memblock: New memory allocator This is really close to BLI_mempool but uses an array to keep track of the chunks of memory. There is no tagging necessary to clear the whole structure so reuse is fast. Naturally supports iteration but does not support freeing.
2019-05-07 17:52:57 +02:00
#ifdef __cplusplus
}
#endif
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