1 /* Test of fsync() function.
2 Copyright (C) 2008 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 2 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/>. */
22 #define ASSERT(expr) \
27 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
38 const char *file = "test-fsync.txt";
40 ASSERT (fsync (0) != 0);
41 fd = open (file, O_WRONLY|O_CREAT|O_TRUNC, 0644);
43 ASSERT (write (fd, "hello", 5) == 5);
44 ASSERT (fsync (fd) == 0);
45 ASSERT (close (fd) == 0);
46 ASSERT (unlink (file) == 0);