1 /* Test of fdatasync() function.
2 Copyright (C) 2008-2011 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "signature.h"
22 SIGNATURE_CHECK (fdatasync, int, (int));
33 const char *file = "test-fdatasync.txt";
35 if (fdatasync (STDOUT_FILENO) != 0)
37 ASSERT (errno == EINVAL /* POSIX */
38 || errno == ENOTSUP /* seen on MacOS X 10.5 */
39 || errno == EBADF /* seen on AIX 7.1 */
43 ASSERT (fdatasync (-1) == -1);
44 ASSERT (errno == EBADF);
45 fd = open (file, O_WRONLY|O_CREAT|O_TRUNC, 0644);
47 ASSERT (write (fd, "hello", 5) == 5);
48 ASSERT (fdatasync (fd) == 0);
49 ASSERT (close (fd) == 0);
51 /* POSIX is self-contradictory on whether fdatasync must fail on
52 read-only file descriptors. Glibc allows it, as does our
53 implementation if fsync allows it. */
54 fd = open (file, O_RDONLY);
57 ASSERT (fdatasync (fd) == -1);
58 ASSERT (errno == EBADF);
59 ASSERT (close (fd) == 0);
61 ASSERT (unlink (file) == 0);