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https://github.com/RIOT-OS/RIOT.git
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Koen Zandberg
bdf2bf537a
These functions are short enough that inlining them actually reduces the flash footprint of the test on the samr21-xpro
34 lines
1015 B
C
34 lines
1015 B
C
/*
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* Copyright (C) 2018 Tobias Heider <heidert@nm.ifi.lmu.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#include <assert.h>
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#include <string.h>
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#include "memarray.h"
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#define ENABLE_DEBUG 0
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#include "debug.h"
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void memarray_init(memarray_t *mem, void *data, size_t size, size_t num)
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{
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assert((mem != NULL) && (data != NULL) && (size >= sizeof(void *)) &&
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(num != 0));
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DEBUG("memarray: Initialize memarray of %u times %u Bytes at %p\n",
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(unsigned)num, (unsigned)size, data);
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mem->free_data = data;
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mem->size = size;
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mem->num = num;
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for (size_t i = 0; i < (mem->num - 1); i++) {
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void *next = ((char *)mem->free_data) + ((i + 1) * mem->size);
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memcpy(((char *)mem->free_data) + (i * mem->size), &next, sizeof(void *));
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}
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memset(((char *)mem->free_data) + ((mem->num - 1) * (mem->size)), 0, sizeof(void *));
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}
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