mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
133 lines
4.6 KiB
C
133 lines
4.6 KiB
C
/* Basic sync_file_range (not specific flag is checked).
|
|
Copyright (C) 2016-2025 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* sync_file_range is only define for LFS. */
|
|
#define _FILE_OFFSET_BITS 64
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <support/temp_file.h>
|
|
#include <support/check.h>
|
|
|
|
#define XSTR(s) STR(S)
|
|
#define STR(s) #s
|
|
|
|
static char *temp_filename;
|
|
static int temp_fd;
|
|
|
|
static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX";
|
|
static int fifofd;
|
|
|
|
void
|
|
do_prepare (int argc, char **argv)
|
|
{
|
|
temp_fd = create_temp_file ("tst-file_sync_range.", &temp_filename);
|
|
if (temp_fd == -1)
|
|
FAIL_EXIT1 ("cannot create temporary file: %m");
|
|
|
|
if (mktemp (fifoname) == NULL)
|
|
FAIL_EXIT1 ("cannot generate temp file name: %m");
|
|
add_temp_file (fifoname);
|
|
|
|
if (mkfifo (fifoname, S_IWUSR | S_IRUSR) != 0)
|
|
FAIL_EXIT1 ("cannot create fifo: %m");
|
|
|
|
fifofd = open (fifoname, O_RDONLY | O_NONBLOCK);
|
|
if (fifofd == -1)
|
|
FAIL_EXIT1 ("cannot open fifo: %m");
|
|
}
|
|
#define PREPARE do_prepare
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int ret;
|
|
|
|
/* This tests first check for some invalid usage and then check for
|
|
a simple usage. It does not cover for all possible issue since for
|
|
EIO/ENOMEM/ENOSPC would require to create very specific scenarios that
|
|
are outside the current test coverage (basically correct kernel argument
|
|
passing. */
|
|
|
|
/* Check for invalid file descriptor. */
|
|
if ((ret = sync_file_range (-1, 0, 0, 0)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor "
|
|
"(returned %d, expected -1)", ret);
|
|
if (errno != EBADF)
|
|
FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to "
|
|
"EBADF (%d)", errno);
|
|
|
|
if ((ret = sync_file_range (fifofd, 0, 0, 0)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor "
|
|
"(returned %d, expected -1)", ret);
|
|
if (errno != ESPIPE)
|
|
FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to "
|
|
"EBADF (%d)", errno);
|
|
|
|
/* Check for invalid flags (it must be
|
|
SYNC_FILE_RANGE_{WAIT_BEFORE,WRITE,WAIT_AFTER) or a 'or' combination of
|
|
them. */
|
|
if ((ret = sync_file_range (temp_fd, 0, 0, -1)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not failed with invalid flags "
|
|
"(returned %d, " "expected -1)", ret);
|
|
if (errno != EINVAL)
|
|
FAIL_EXIT1 ("sync_file_range with invalid flag did not set errno to "
|
|
"EINVAL (%d)", errno);
|
|
|
|
/* Check for negative offset. */
|
|
if ((ret = sync_file_range (temp_fd, -1, 1, 0)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not failed with invalid offset "
|
|
"(returned %d, expected -1)", ret);
|
|
if (errno != EINVAL)
|
|
FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
|
|
"EINVAL (%d)", errno);
|
|
|
|
/* offset + nbytes must be a positive value. */
|
|
if ((ret = sync_file_range (temp_fd, 1024, -2048, 0)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not failed with invalid nbytes (returned %d, "
|
|
"expected -1)", ret);
|
|
if (errno != EINVAL)
|
|
FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
|
|
"EINVAL (%d)", errno);
|
|
|
|
/* offset + nbytes must be larger or equal than offset */
|
|
if ((ret = sync_file_range (temp_fd, -1024, 1024, 0)) != -1)
|
|
FAIL_EXIT1 ("sync_file_range did not failed with invalid offset "
|
|
"(returned %d, expected -1)", ret);
|
|
if (errno != EINVAL)
|
|
FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
|
|
"EINVAL (%d)", errno);
|
|
|
|
/* Check simple successful case. */
|
|
if ((ret = sync_file_range (temp_fd, 0, 1024, 0)) == -1)
|
|
FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno);
|
|
|
|
/* Finally check also a successful case with a 64-bit offset. */
|
|
off_t large_offset = UINT32_MAX + 2048LL;
|
|
if ((ret = sync_file_range (temp_fd, large_offset, 1024, 0)) == -1)
|
|
FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|