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 gl_futimens(a,NULL,b) and
20 futimens(a,b). FUNC is the function to test. Assumes that BASE
21 and ASSERT are already defined. If PRINT, warn before skipping
22 tests with status 77. */
24 test_futimens (int (*func) (int, struct timespec const *),
27 int fd = creat (BASE "file", 0600);
34 ASSERT (fstat (fd, &st1) == 0);
37 result = func (fd, NULL);
38 if (result == -1 && errno == ENOSYS)
40 ASSERT (close (fd) == 0);
41 ASSERT (unlink (BASE "file") == 0);
43 fputs ("skipping test: "
44 "setting fd time not supported on this file system\n",
49 ASSERT (fstat (fd, &st2) == 0);
50 /* If utimens truncates to less resolution than the file system
51 supports, then time can appear to go backwards between now and a
52 follow-up utimens with UTIME_NOW or a NULL timespec. Use
53 UTIMECMP_TRUNCATE_SOURCE to compensate, with st1 as the
55 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
57 /* On some NFS systems, the 'now' timestamp of creat or a NULL
58 timespec is determined by the server, but the 'now' timestamp
59 determined by gettime() (as is done when using UTIME_NOW) is
60 determined by the client; since the two machines are not
61 necessarily on the same clock, this is another case where time
62 can appear to go backwards. The rest of this test cares about
63 client time, so manually use gettime() to set both times. */
64 struct timespec ts[2];
67 ASSERT (func (fd, ts) == 0);
68 ASSERT (fstat (fd, &st1) == 0);
72 /* Invalid arguments. */
74 ASSERT (func (AT_FDCWD, NULL) == -1);
75 ASSERT (errno == EBADF);
77 struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
79 ASSERT (func (fd, ts) == -1);
80 ASSERT (errno == EINVAL);
83 struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
85 ASSERT (func (fd, ts) == -1);
86 ASSERT (errno == EINVAL);
88 ASSERT (fstat (fd, &st2) == 0);
89 ASSERT (st1.st_atime == st2.st_atime);
90 ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
91 ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
95 struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
96 ASSERT (func (fd, ts) == 0);
97 ASSERT (fstat (fd, &st2) == 0);
98 ASSERT (st2.st_atime == Y2K);
99 ASSERT (0 <= get_stat_atime_ns (&st2));
100 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
101 ASSERT (st2.st_mtime == Y2K);
102 ASSERT (0 <= get_stat_mtime_ns (&st2));
103 ASSERT (get_stat_mtime_ns (&st2) < BILLION);
106 /* Play with UTIME_OMIT, UTIME_NOW. */
108 struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
109 ASSERT (func (fd, ts) == 0);
110 ASSERT (fstat (fd, &st2) == 0);
111 ASSERT (st2.st_atime == Y2K);
112 ASSERT (0 <= get_stat_atime_ns (&st2));
113 ASSERT (get_stat_atime_ns (&st2) <= BILLION / 2);
114 ASSERT (utimecmp (BASE "file", &st1, &st2, 0) <= 0);
118 ASSERT (close (fd) == 0);
119 ASSERT (unlink (BASE "file") == 0);