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/*
* inline.c --- Includes the inlined functions defined in the header
* files as standalone functions, in case the application program
* is compiled with inlining turned off.
*
* Copyright (C) 1993, 1994 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600 /* for posix_memalign() */
#endif
#include "config.h"
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <time.h>
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "ext2_fs.h"
#define INCLUDE_INLINE_FUNCS
#include "ext2fs.h"
/*
* We used to define this as an inline, but since we are now using
* autoconf-defined #ifdef's, we need to export this as a
* library-provided function exclusively.
*/
errcode_t ext2fs_get_memalign(unsigned long size,
unsigned long align, void *ptr)
{
errcode_t retval = 0;
void **p = ptr;
if (align < 8)
align = 8;
#ifdef HAVE_POSIX_MEMALIGN
retval = posix_memalign(p, align, size);
if (retval == ENOMEM)
return EXT2_ET_NO_MEMORY;
#else /* !HAVE_POSIX_MEMALIGN */
#ifdef HAVE_MEMALIGN
*p = memalign(align, size);
if (*p == NULL) {
if (errno)
return errno;
else
return EXT2_ET_NO_MEMORY;
}
#else /* !HAVE_MEMALIGN */
#ifdef HAVE_VALLOC
if (align > sizeof(long long))
*p = valloc(size);
else
#endif
*p = malloc(size);
if ((uintptr_t) *p & (align - 1)) {
free(*p);
*p = 0;
}
if (*p == 0)
return EXT2_ET_NO_MEMORY;
#endif /* HAVE_MEMALIGN */
#endif /* HAVE_POSIX_MEMALIGN */
return retval;
}
#ifdef DEBUG
static int isaligned(void *ptr, unsigned long align)
{
return (((unsigned long) ptr & (align - 1)) == 0);
}
static errcode_t test_memalign(unsigned long align)
{
void *ptr = 0;
errcode_t retval;
retval = ext2fs_get_memalign(32, align, &ptr);
if (!retval && !isaligned(ptr, align))
retval = EINVAL;
free(ptr);
printf("tst_memalign(%lu) is %s\n", align,
retval ? error_message(retval) : "OK");
return retval;
}
int main(int argc, char **argv)
{
int err = 0;
if (test_memalign(4))
err++;
if (test_memalign(32))
err++;
if (test_memalign(1024))
err++;
if (test_memalign(4096))
err++;
return err;
}
#endif
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