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/*
* Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
*
* 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 would 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 the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "lapi/fallocate.h"
#include "test.h"
int tst_fill_fd(int fd, char pattern, size_t bs, size_t bcount)
{
size_t i;
char *buf;
/* Filling a memory buffer with provided pattern */
buf = malloc(bs);
if (buf == NULL)
return -1;
for (i = 0; i < bs; i++)
buf[i] = pattern;
/* Filling the file */
for (i = 0; i < bcount; i++) {
if (write(fd, buf, bs) != (ssize_t)bs) {
free(buf);
return -1;
}
}
free(buf);
return 0;
}
int tst_prealloc_size_fd(int fd, size_t bs, size_t bcount)
{
int ret;
errno = 0;
ret = fallocate(fd, 0, 0, bs * bcount);
if (ret && errno == ENOSPC)
return ret;
if (ret)
ret = tst_fill_fd(fd, 0, bs, bcount);
return ret;
}
int tst_fill_file(const char *path, char pattern, size_t bs, size_t bcount)
{
int fd;
fd = open(path, O_CREAT|O_WRONLY|O_TRUNC, S_IRUSR|S_IWUSR);
if (fd < 0)
return -1;
if (tst_fill_fd(fd, pattern, bs, bcount)) {
close(fd);
unlink(path);
return -1;
}
if (close(fd) < 0) {
unlink(path);
return -1;
}
return 0;
}
int tst_prealloc_file(const char *path, size_t bs, size_t bcount)
{
int fd;
fd = open(path, O_CREAT|O_WRONLY|O_TRUNC, S_IRUSR|S_IWUSR);
if (fd < 0)
return -1;
if (tst_prealloc_size_fd(fd, bs, bcount)) {
close(fd);
unlink(path);
return -1;
}
if (close(fd) < 0) {
unlink(path);
return -1;
}
return 0;
}
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