1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* Copyright (c) 2019, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 8181493 8231174 8343417
* @summary Verify that nanosecond precision is maintained for file timestamps
* @library ../.. /test/lib
* @build jdk.test.lib.Platform
* @modules java.base/sun.nio.fs:+open
* @run main SetTimesNanos
*/
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.FileStore;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.FileTime;
import java.util.List;
import java.util.Set;
import static java.nio.file.LinkOption.*;
import static java.util.concurrent.TimeUnit.*;
import jdk.test.lib.Platform;
import jtreg.SkippedException;
public class SetTimesNanos {
public static void main(String[] args) throws Exception {
Path dirPath = Path.of("test");
Path dir = Files.createDirectory(dirPath);
FileStore store = Files.getFileStore(dir);
System.out.format("FileStore: \"%s\" on %s (%s)%n",
dir, store.name(), store.type());
Set<String> testedTypes = Platform.isWindows() ?
Set.of("NTFS") : Set.of("apfs", "ext4", "xfs", "zfs");
if (!testedTypes.contains(store.type())) {
throw new SkippedException(store.type() + " not in " + testedTypes);
}
testNanos(dir);
Path file = Files.createFile(dir.resolve("test.dat"));
testNanos(file);
testNanosLink(false);
testNanosLink(true);
}
private static void testNanos(Path path) throws IOException {
// Set modification and access times
// Time stamp = "2017-01-01 01:01:01.123456789";
long timeNanos = 1_483_261_261L*1_000_000_000L + 123_456_789L;
FileTime pathTime = FileTime.from(timeNanos, NANOSECONDS);
BasicFileAttributeView view =
Files.getFileAttributeView(path, BasicFileAttributeView.class);
view.setTimes(pathTime, pathTime, null);
// Windows file time resolution is 100ns so truncate
if (Platform.isWindows()) {
timeNanos = 100L*(timeNanos/100L);
}
// Read attributes
BasicFileAttributes attrs =
Files.readAttributes(path, BasicFileAttributes.class);
// Check timestamps
String[] timeNames = new String[] {"modification", "access"};
FileTime[] times = new FileTime[] {attrs.lastModifiedTime(),
attrs.lastAccessTime()};
for (int i = 0; i < timeNames.length; i++) {
long nanos = times[i].to(NANOSECONDS);
if (nanos != timeNanos) {
throw new RuntimeException("Expected " + timeNames[i] +
" timestamp to be '" + timeNanos + "', but was '" +
nanos + "'");
}
}
}
private static void testNanosLink(boolean absolute) throws IOException {
System.out.println("absolute: " + absolute);
var target = Path.of("target");
var symlink = Path.of("symlink");
if (absolute)
symlink = symlink.toAbsolutePath();
try {
Files.createFile(target);
Files.createSymbolicLink(symlink, target);
long timeNanos = 1730417633157646106L;
// Windows file time resolution is 100ns so truncate
if (Platform.isWindows()) {
timeNanos = 100L*(timeNanos/100L);
}
var newTime = FileTime.from(timeNanos, NANOSECONDS);
System.out.println("newTime: " + newTime.to(NANOSECONDS));
for (Path p : List.of(target, symlink)) {
System.out.println("p: " + p);
var view = Files.getFileAttributeView(p,
BasicFileAttributeView.class, NOFOLLOW_LINKS);
view.setTimes(newTime, newTime, null);
var attrs = view.readAttributes();
if (!attrs.lastAccessTime().equals(newTime))
throw new RuntimeException("Last access time "
+ attrs.lastAccessTime()
+ " != " + newTime);
if (!attrs.lastAccessTime().equals(newTime))
throw new RuntimeException("Last modified time "
+ attrs.lastModifiedTime()
+ " != " + newTime);
}
} finally {
Files.deleteIfExists(target);
Files.deleteIfExists(symlink);
}
}
}
|
