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8316304: (fs) Add support for BasicFileAttributes.creationTime() for Linux

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Reviewed-by: stuefe, alanb, bpb, mli
This commit is contained in:
Severin Gehwolf 2023-10-16 07:40:29 +00:00
parent 77d40ce166
commit 0275efac88
3 changed files with 242 additions and 13 deletions
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16
src/java.base/unix/classes/sun/nio/fs/UnixFileAttributes.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2023, 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
@ -25,10 +25,15 @@
package sun.nio.fs;
import java.nio.file.attribute.*;
import java.util.concurrent.TimeUnit;
import java.util.Set;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileTime;
import java.nio.file.attribute.GroupPrincipal;
import java.nio.file.attribute.PosixFileAttributes;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.UserPrincipal;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* Unix implementation of PosixFileAttributes.
@ -52,6 +57,7 @@ class UnixFileAttributes
private long st_ctime_sec;
private long st_ctime_nsec;
private long st_birthtime_sec;
private long st_birthtime_nsec;
// created lazily
private volatile UserPrincipal owner;
@ -158,7 +164,7 @@ class UnixFileAttributes
@Override
public FileTime creationTime() {
if (UnixNativeDispatcher.birthtimeSupported()) {
return FileTime.from(st_birthtime_sec, TimeUnit.SECONDS);
return toFileTime(st_birthtime_sec, st_birthtime_nsec);
} else {
// return last modified when birth time not supported
return lastModifiedTime();