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