20 * or visit www.oracle.com if you need additional information or have any |
20 * or visit www.oracle.com if you need additional information or have any |
21 * questions. |
21 * questions. |
22 */ |
22 */ |
23 |
23 |
24 /* @test |
24 /* @test |
25 * @bug 8181493 |
25 * @bug 8181493 8231174 |
26 * @summary Verify that nanosecond precision is maintained for file timestamps |
26 * @summary Verify that nanosecond precision is maintained for file timestamps |
27 * @requires (os.family == "linux") | (os.family == "mac") | (os.family == "solaris") |
27 * @requires (os.family == "linux") | (os.family == "mac") | (os.family == "solaris") | (os.family == "windows") |
28 * @modules java.base/sun.nio.fs:+open |
28 * @modules java.base/sun.nio.fs:+open |
29 */ |
29 */ |
30 |
30 |
31 import java.io.IOException; |
31 import java.io.IOException; |
32 import java.lang.reflect.Method; |
32 import java.lang.reflect.Method; |
38 import java.nio.file.attribute.FileTime; |
38 import java.nio.file.attribute.FileTime; |
39 import java.util.Set; |
39 import java.util.Set; |
40 import java.util.concurrent.TimeUnit; |
40 import java.util.concurrent.TimeUnit; |
41 |
41 |
42 public class SetTimesNanos { |
42 public class SetTimesNanos { |
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43 private static final boolean IS_WINDOWS = |
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44 System.getProperty("os.name").startsWith("Windows"); |
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45 |
43 public static void main(String[] args) throws Exception { |
46 public static void main(String[] args) throws Exception { |
44 // Check whether futimens() system call is supported |
47 if (!IS_WINDOWS) { |
45 Class unixNativeDispatcherClass = Class.forName("sun.nio.fs.UnixNativeDispatcher"); |
48 // Check whether futimens() system call is supported |
46 Method futimensSupported = unixNativeDispatcherClass.getDeclaredMethod("futimensSupported"); |
49 Class unixNativeDispatcherClass = |
47 futimensSupported.setAccessible(true); |
50 Class.forName("sun.nio.fs.UnixNativeDispatcher"); |
48 if (!(boolean)futimensSupported.invoke(null)) { |
51 Method futimensSupported = |
49 System.err.println("futimens() system call not supported; skipping test"); |
52 unixNativeDispatcherClass.getDeclaredMethod("futimensSupported"); |
50 return; |
53 futimensSupported.setAccessible(true); |
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54 if (!(boolean)futimensSupported.invoke(null)) { |
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55 System.err.println("futimens() not supported; skipping test"); |
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56 return; |
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57 } |
51 } |
58 } |
52 |
59 |
53 Path dirPath = Path.of("test"); |
60 Path dirPath = Path.of("test"); |
54 Path dir = Files.createDirectory(dirPath); |
61 Path dir = Files.createDirectory(dirPath); |
55 FileStore store = Files.getFileStore(dir); |
62 FileStore store = Files.getFileStore(dir); |
56 System.out.format("FileStore: \"%s\" on %s (%s)%n", |
63 System.out.format("FileStore: \"%s\" on %s (%s)%n", |
57 dir, store.name(), store.type()); |
64 dir, store.name(), store.type()); |
58 |
65 |
59 Set<String> testedTypes = Set.of("apfs", "ext4", "xfs", "zfs"); |
66 Set<String> testedTypes = IS_WINDOWS ? |
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67 Set.of("NTFS") : Set.of("apfs", "ext4", "xfs", "zfs"); |
60 if (!testedTypes.contains(store.type())) { |
68 if (!testedTypes.contains(store.type())) { |
61 System.err.format("%s not in %s; skipping test", store.type(), testedTypes); |
69 System.err.format("%s not in %s; skipping test", store.type(), testedTypes); |
62 return; |
70 return; |
63 } |
71 } |
64 |
72 |
75 FileTime pathTime = FileTime.from(timeNanos, TimeUnit.NANOSECONDS); |
83 FileTime pathTime = FileTime.from(timeNanos, TimeUnit.NANOSECONDS); |
76 BasicFileAttributeView view = |
84 BasicFileAttributeView view = |
77 Files.getFileAttributeView(path, BasicFileAttributeView.class); |
85 Files.getFileAttributeView(path, BasicFileAttributeView.class); |
78 view.setTimes(pathTime, pathTime, null); |
86 view.setTimes(pathTime, pathTime, null); |
79 |
87 |
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88 // Windows file time resolution is 100ns so truncate |
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89 if (IS_WINDOWS) { |
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90 timeNanos = 100L*(timeNanos/100L); |
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91 } |
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92 |
80 // Read attributes |
93 // Read attributes |
81 BasicFileAttributes attrs = |
94 BasicFileAttributes attrs = |
82 Files.readAttributes(path, BasicFileAttributes.class); |
95 Files.readAttributes(path, BasicFileAttributes.class); |
83 |
96 |
84 // Check timestamps |
97 // Check timestamps |