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/*
* Copyright (C) 1999-2000 Michael H. Schimek
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: alloc.h,v 1.5 2005/01/08 14:54:19 mschimek Exp $ */
#ifndef ALLOC_H
#define ALLOC_H
#include <stdlib.h>
/*#include <malloc.h> deprecated? */
#include "types.h"
#ifdef HAVE_MEMALIGN
#define free_aligned(p) free(p)
#else
#define free_aligned(p) free(((void **) p)[-1])
#endif
extern void *alloc_aligned(size_t, unsigned int, z_bool);
static inline void *
malloc_aligned(size_t size, unsigned int align)
{
void *p;
#ifdef HAVE_MEMALIGN
p = (void *) memalign(align, size);
#else
p = alloc_aligned(size, align, FALSE);
/*
if ((p = malloc(size + align)))
(char *) p += align - ((int) p & (align - 1));
*/
#endif
return p;
}
static inline void *
calloc_aligned(size_t size, unsigned int align)
{
void *p;
#ifdef HAVE_MEMALIGN
if ((p = (void *) memalign(align, size)))
memset(p, 0, size);
#else
p = alloc_aligned(size, align, TRUE);
/*
if ((p = calloc(1, size + align)))
(char *) p += align - ((int) p & (align - 1));
*/
#endif
return p;
}
#endif /* ALLOC_H */
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