86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/**
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* \file mmc.h
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* \brief The mmc memory management functions check a cache for re-usable unused memory before asking the system for it.
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*
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* \author Gregory Bard <bard@fordham.edu>
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* \author Martin Albrecht <M.R.Albrecht@rhul.ac.uk>
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*/
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#ifndef M4RI_MMC_H
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#define M4RI_MMC_H
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/*******************************************************************
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*
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* M4RI: Linear Algebra over GF(2)
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*
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* Copyright (C) 2007, 2008 Gregory Bard <bard@fordham.edu>
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* Copyright (C) 2008 Martin Albrecht <M.R.Albrecht@rhul.ac.uk>
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*
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* Distributed under the terms of the GNU General Public License (GPL)
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* version 2 or higher.
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*
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* This code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* The full text of the GPL is available at:
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*
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* http://www.gnu.org/licenses/
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*
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********************************************************************/
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#include <m4ri/misc.h>
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void *m4ri_mmc_malloc(size_t size);
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void m4ri_mmc_free(void *condemned, size_t size);
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void m4ri_mmc_cleanup(void);
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/**
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* \brief Enable memory block cache (default: enabled).
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*/
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#define __M4RI_ENABLE_MMC
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/**
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* \brief Number of blocks that are cached.
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*/
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#define __M4RI_MMC_NBLOCKS 16
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/**
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* \brief Maximal size of blocks stored in cache.
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*/
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#define __M4RI_MMC_THRESHOLD __M4RI_CPU_L3_CACHE
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/**
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* \brief Tuple of pointer to allocated memory block and it's size.
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*/
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typedef struct _mm_block {
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/**
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* Size in bytes of the data.
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*/
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size_t size;
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/**
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* Pointer to buffer of data.
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*/
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void *data;
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} mmb_t;
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/**
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* \brief Allocate an array of count times size zeroed bytes.
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*
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* \param count Number of elements.
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* \param size Number of bytes per element.
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*
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* \return Pointer to allocated memory block.
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*/
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static inline void *m4ri_mmc_calloc(size_t count, size_t size) {
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size_t total_size = count * size;
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void *ret = m4ri_mmc_malloc(total_size);
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memset((char*)ret, 0, total_size);
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return ret;
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}
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#endif // M4RI_MMC_H
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