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 /* This file assumes that BASE and ASSERT are already defined. */
19 #ifndef GL_TEST_UTIMENS
20 # define GL_TEST_UTIMENS
27 #include "stat-time.h"
32 BILLION = 1000 * 1000 * 1000,
34 Y2K = 946684800, /* Jan 1, 2000, in seconds since epoch. */
36 /* Bogus positive and negative tv_nsec values closest to valid
37 range, but without colliding with UTIME_NOW or UTIME_OMIT. */
38 UTIME_BOGUS_POS = BILLION + ((UTIME_NOW == BILLION || UTIME_OMIT == BILLION)
39 ? (1 + (UTIME_NOW == BILLION + 1)
40 + (UTIME_OMIT == BILLION + 1))
42 UTIME_BOGUS_NEG = -1 - ((UTIME_NOW == -1 || UTIME_OMIT == -1)
43 ? (1 + (UTIME_NOW == -2) + (UTIME_OMIT == -2))
47 #endif /* GL_TEST_UTIMENS */
49 /* This function is designed to test both utimens(a,b) and
50 utimensat(AT_FDCWD,a,b,0). FUNC is the function to test. */
52 test_utimens (int (*func) (char const *, struct timespec const *))
57 ASSERT (close (creat (BASE "file", 0600)) == 0);
58 /* If utimens truncates to less resolution than the file system
59 supports, then time can appear to go backwards between now and
60 the follow-up utimens(file,NULL). Use UTIMECMP_TRUNCATE_SOURCE
61 to compensate, with st1 as the source. */
62 ASSERT (stat (BASE "file", &st1) == 0);
64 /* Invalid arguments. */
66 ASSERT (func ("no_such", NULL) == -1);
67 ASSERT (errno == ENOENT);
69 ASSERT (func ("", NULL) == -1);
70 ASSERT (errno == ENOENT);
72 struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
74 ASSERT (func (BASE "file", ts) == -1);
75 ASSERT (errno == EINVAL);
78 struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
80 ASSERT (func (BASE "file", ts) == -1);
81 ASSERT (errno == EINVAL);
83 ASSERT (stat (BASE "file", &st2) == 0);
84 ASSERT (st1.st_atime == st2.st_atime);
85 ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
86 ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
90 struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
91 ASSERT (func (BASE "file", ts) == 0);
92 ASSERT (stat (BASE "file", &st2) == 0);
93 ASSERT (st2.st_atime == Y2K);
94 ASSERT (0 <= get_stat_atime_ns (&st2));
95 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
96 ASSERT (st2.st_mtime == Y2K);
97 ASSERT (0 <= get_stat_mtime_ns (&st2));
98 ASSERT (get_stat_mtime_ns (&st2) < BILLION);
101 /* Play with UTIME_OMIT, UTIME_NOW. */
103 struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
104 ASSERT (func (BASE "file", ts) == 0);
105 ASSERT (stat (BASE "file", &st2) == 0);
106 ASSERT (st2.st_atime == Y2K);
107 ASSERT (0 <= get_stat_atime_ns (&st2));
108 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
109 /* See comment above about this utimecmp call. */
110 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
114 ASSERT (unlink (BASE "file") == 0);