1 /* Test of file timestamp modification functions.
2 Copyright (C) 2009 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/>. */
17 #include "test-utimens-common.h"
19 /* This file is designed to test both utimens(a,b) and
20 utimensat(AT_FDCWD,a,b,0). FUNC is the function to test. Assumes
21 that BASE and ASSERT are already defined. */
23 test_utimens (int (*func) (char const *, struct timespec const *))
28 ASSERT (close (creat (BASE "file", 0600)) == 0);
29 /* If utimens truncates to less resolution than the file system
30 supports, then time can appear to go backwards between now and a
31 follow-up utimens with UTIME_NOW or a NULL timespec. Use
32 UTIMECMP_TRUNCATE_SOURCE to compensate, with st1 as the
34 ASSERT (stat (BASE "file", &st1) == 0);
36 ASSERT (func (BASE "file", NULL) == 0);
37 ASSERT (stat (BASE "file", &st2) == 0);
38 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
40 /* On some NFS systems, the 'now' timestamp of creat or a NULL
41 timespec is determined by the server, but the 'now' timestamp
42 determined by gettime() (as is done when using UTIME_NOW) is
43 determined by the client; since the two machines are not
44 necessarily on the same clock, this is another case where time
45 can appear to go backwards. The rest of this test cares about
46 client time, so manually use gettime() to set both times. */
47 struct timespec ts[2];
50 ASSERT (func (BASE "file", ts) == 0);
51 ASSERT (stat (BASE "file", &st1) == 0);
55 /* Invalid arguments. */
57 ASSERT (func ("no_such", NULL) == -1);
58 ASSERT (errno == ENOENT);
60 ASSERT (func ("", NULL) == -1);
61 ASSERT (errno == ENOENT);
63 struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
65 ASSERT (func (BASE "file", ts) == -1);
66 ASSERT (errno == EINVAL);
69 struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
71 ASSERT (func (BASE "file", ts) == -1);
72 ASSERT (errno == EINVAL);
74 ASSERT (stat (BASE "file", &st2) == 0);
75 ASSERT (st1.st_atime == st2.st_atime);
76 ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
77 ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
81 struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
82 ASSERT (func (BASE "file", ts) == 0);
83 ASSERT (stat (BASE "file", &st2) == 0);
84 ASSERT (st2.st_atime == Y2K);
85 ASSERT (0 <= get_stat_atime_ns (&st2));
86 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
87 ASSERT (st2.st_mtime == Y2K);
88 ASSERT (0 <= get_stat_mtime_ns (&st2));
89 ASSERT (get_stat_mtime_ns (&st2) < BILLION);
92 /* Play with UTIME_OMIT, UTIME_NOW. */
94 struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
95 ASSERT (func (BASE "file", ts) == 0);
96 ASSERT (stat (BASE "file", &st2) == 0);
97 ASSERT (st2.st_atime == Y2K);
98 ASSERT (0 <= get_stat_atime_ns (&st2));
99 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
100 /* See comment above about this utimecmp call. */
101 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
105 ASSERT (unlink (BASE "file") == 0);