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8d9254fc | 1 | // Copyright (C) 2016-2020 Free Software Foundation, Inc. |
fd5effb1 JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library 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. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
ef0e80d2 | 18 | // { dg-options "-DUSE_FILESYSTEM_TS -lstdc++fs" } |
fd5effb1 JW |
19 | // { dg-do run { target c++11 } } |
20 | // { dg-require-filesystem-ts "" } | |
21 | ||
22 | // 15.25 Permissions [fs.op.last_write_time] | |
23 | ||
24 | #include <experimental/filesystem> | |
25 | #include <testsuite_fs.h> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | #ifdef _GLIBCXX_HAVE_FCNTL_H | |
29 | # include <fcntl.h> | |
30 | #endif | |
31 | #if _GLIBCXX_HAVE_UTIME_H | |
32 | # include <utime.h> | |
33 | #endif | |
34 | ||
69af1c04 JW |
35 | using time_type = std::experimental::filesystem::file_time_type; |
36 | ||
fd5effb1 JW |
37 | void |
38 | test01() | |
39 | { | |
7195dfe9 JW |
40 | // read times |
41 | ||
fd5effb1 JW |
42 | auto p = __gnu_test::nonexistent_path(); |
43 | std::error_code ec; | |
44 | time_type mtime = last_write_time(p, ec); | |
45 | VERIFY( ec ); | |
46 | VERIFY( ec == std::make_error_code(std::errc::no_such_file_or_directory) ); | |
47 | #if __cpp_exceptions | |
48 | bool caught = false; | |
49 | try { | |
50 | mtime = last_write_time(p); | |
51 | } catch (std::system_error const& e) { | |
52 | caught = true; | |
53 | ec = e.code(); | |
54 | } | |
55 | VERIFY( caught ); | |
56 | VERIFY( ec ); | |
57 | VERIFY( ec == std::make_error_code(std::errc::no_such_file_or_directory) ); | |
58 | #endif | |
59 | ||
60 | __gnu_test::scoped_file file(p); | |
61 | VERIFY( exists(p) ); | |
62 | mtime = last_write_time(p, ec); | |
63 | VERIFY( !ec ); | |
64 | VERIFY( mtime <= time_type::clock::now() ); | |
65 | VERIFY( mtime == last_write_time(p) ); | |
66 | ||
67 | auto end_of_time = time_type::duration::max(); | |
68 | auto last_second | |
69 | = std::chrono::duration_cast<std::chrono::seconds>(end_of_time).count(); | |
70 | if (last_second > std::numeric_limits<std::time_t>::max()) | |
71 | return; // can't test overflow | |
72 | ||
73 | #if _GLIBCXX_USE_UTIMENSAT | |
74 | struct ::timespec ts[2]; | |
75 | ts[0].tv_sec = 0; | |
76 | ts[0].tv_nsec = UTIME_NOW; | |
77 | ts[1].tv_sec = std::numeric_limits<std::time_t>::max() - 1; | |
78 | ts[1].tv_nsec = 0; | |
79 | VERIFY( !::utimensat(AT_FDCWD, p.c_str(), ts, 0) ); | |
80 | #elif _GLIBCXX_HAVE_UTIME_H | |
81 | ::utimbuf times; | |
82 | times.modtime = std::numeric_limits<std::time_t>::max() - 1; | |
83 | times.actime = std::numeric_limits<std::time_t>::max() - 1; | |
9534a5e6 | 84 | VERIFY( !::utime(p.string().c_str(), ×) ); |
fd5effb1 JW |
85 | #else |
86 | return; | |
87 | #endif | |
88 | ||
89 | mtime = last_write_time(p, ec); | |
90 | VERIFY( ec ); | |
91 | VERIFY( ec == std::make_error_code(std::errc::value_too_large) ); | |
92 | VERIFY( mtime == time_type::min() ); | |
93 | ||
94 | #if __cpp_exceptions | |
95 | caught = false; | |
96 | try { | |
97 | mtime = last_write_time(p); | |
98 | } catch (std::system_error const& e) { | |
99 | caught = true; | |
100 | ec = e.code(); | |
101 | } | |
102 | VERIFY( caught ); | |
103 | VERIFY( ec ); | |
104 | VERIFY( ec == std::make_error_code(std::errc::value_too_large) ); | |
105 | #endif | |
106 | } | |
107 | ||
69af1c04 JW |
108 | bool approx_equal(time_type file_time, time_type expected) |
109 | { | |
110 | auto delta = expected - file_time; | |
111 | if (delta < delta.zero()) | |
112 | delta = -delta; | |
113 | return delta < std::chrono::seconds(1); | |
114 | } | |
115 | ||
7195dfe9 JW |
116 | void |
117 | test02() | |
118 | { | |
119 | // write times | |
120 | ||
7195dfe9 JW |
121 | __gnu_test::scoped_file f; |
122 | std::error_code ec; | |
123 | time_type time; | |
124 | ||
125 | time = last_write_time(f.path); | |
126 | last_write_time(f.path, time, ec); | |
127 | VERIFY( !ec ); | |
69af1c04 | 128 | VERIFY( approx_equal(last_write_time(f.path), time) ); |
7195dfe9 JW |
129 | |
130 | time -= std::chrono::milliseconds(1000 * 60 * 10 + 15); | |
131 | last_write_time(f.path, time, ec); | |
132 | VERIFY( !ec ); | |
69af1c04 | 133 | VERIFY( approx_equal(last_write_time(f.path), time) ); |
7195dfe9 JW |
134 | |
135 | time += std::chrono::milliseconds(1000 * 60 * 20 + 15); | |
136 | last_write_time(f.path, time, ec); | |
137 | VERIFY( !ec ); | |
69af1c04 | 138 | VERIFY( approx_equal(last_write_time(f.path), time) ); |
7195dfe9 JW |
139 | |
140 | time = time_type(); | |
141 | last_write_time(f.path, time, ec); | |
142 | VERIFY( !ec ); | |
69af1c04 | 143 | VERIFY( approx_equal(last_write_time(f.path), time) ); |
7195dfe9 JW |
144 | |
145 | time -= std::chrono::milliseconds(1000 * 60 * 10 + 15); | |
146 | last_write_time(f.path, time, ec); | |
147 | VERIFY( !ec ); | |
69af1c04 | 148 | VERIFY( approx_equal(last_write_time(f.path), time) ); |
7195dfe9 JW |
149 | } |
150 | ||
fd5effb1 JW |
151 | int |
152 | main() | |
153 | { | |
154 | test01(); | |
7195dfe9 | 155 | test02(); |
fd5effb1 | 156 | } |