archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 15:24:43 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8181493: (fs) Files.readAttributes(path, BasicFileAttributes.class) should preserve nano second time stamps

Browse source 
Reviewed-by: alanb, lancea
This commit is contained in:
Brian Burkhalter 2019-07-29 08:48:52 -07:00
parent 1ed3649f48
commit 20ee82bf0a
5 changed files with 159 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/java.base/unix/classes/sun/nio/fs/UnixFileAttributeViews.java
View file

@ -73,6 +73,7 @@ class UnixFileAttributeViews {
boolean haveFd = false;
boolean useFutimes = false;
boolean useFutimens = false;
boolean useLutimes = false;
int fd = -1;
try {
@ -84,7 +85,9 @@ class UnixFileAttributeViews {
fd = file.openForAttributeAccess(followLinks);
if (fd != -1) {
haveFd = true;
useFutimes = futimesSupported();
if (!(useFutimens = futimensSupported())) {
useFutimes = futimesSupported();
}
}
}
} catch (UnixException x) {
@ -112,13 +115,17 @@ class UnixFileAttributeViews {
}
}
// uptime times
long modValue = lastModifiedTime.to(TimeUnit.MICROSECONDS);
long accessValue= lastAccessTime.to(TimeUnit.MICROSECONDS);
// update times
TimeUnit timeUnit = useFutimens ?
TimeUnit.NANOSECONDS : TimeUnit.MICROSECONDS;
long modValue = lastModifiedTime.to(timeUnit);
long accessValue= lastAccessTime.to(timeUnit);
boolean retry = false;
try {
if (useFutimes) {
if (useFutimens) {
futimens(fd, accessValue, modValue);
} else if (useFutimes) {
futimes(fd, accessValue, modValue);
} else if (useLutimes) {
lutimes(file, accessValue, modValue);
@ -139,7 +146,9 @@ class UnixFileAttributeViews {
if (modValue < 0L) modValue = 0L;
if (accessValue < 0L) accessValue= 0L;
try {
if (useFutimes) {
if (useFutimens) {
futimens(fd, accessValue, modValue);
} else if (useFutimes) {
futimes(fd, accessValue, modValue);
} else if (useLutimes) {
lutimes(file, accessValue, modValue);