diff options
| -rw-r--r-- | org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java index 976f946e5d..487ae06014 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java @@ -218,6 +218,12 @@ public class FileSnapshot { private FileStoreAttributes fileStoreAttributeCache; /** + * if {@code true} read filesystem time resolution from configuration file + * otherwise use fallback resolution + */ + private boolean useConfig; + + /** * Object that uniquely identifies the given file, or {@code * null} if a file key is not available */ @@ -253,9 +259,7 @@ public class FileSnapshot { protected FileSnapshot(File file, boolean useConfig) { this.file = file; this.lastRead = Instant.now(); - this.fileStoreAttributeCache = useConfig - ? FS.getFileStoreAttributes(file.toPath().getParent()) - : FALLBACK_FILESTORE_ATTRIBUTES; + this.useConfig = useConfig; BasicFileAttributes fileAttributes = null; try { fileAttributes = FS.DETECTED.fileAttributes(file); @@ -399,7 +403,7 @@ public class FileSnapshot { * if sleep was interrupted */ public void waitUntilNotRacy() throws InterruptedException { - long timestampResolution = fileStoreAttributeCache + long timestampResolution = fileStoreAttributeCache() .getFsTimestampResolution().toNanos(); while (isRacyClean(Instant.now())) { TimeUnit.NANOSECONDS.sleep(timestampResolution); @@ -519,10 +523,10 @@ public class FileSnapshot { } private long getEffectiveRacyThreshold() { - long timestampResolution = fileStoreAttributeCache + long timestampResolution = fileStoreAttributeCache() .getFsTimestampResolution().toNanos(); - long minRacyInterval = fileStoreAttributeCache.getMinimalRacyInterval() - .toNanos(); + long minRacyInterval = fileStoreAttributeCache() + .getMinimalRacyInterval().toNanos(); long max = Math.max(timestampResolution, minRacyInterval); // safety margin: factor 2.5 below 100ms otherwise 1.25 return max < 100_000_000L ? max * 5 / 2 : max * 5 / 4; @@ -582,4 +586,13 @@ public class FileSnapshot { } return changed; } + + private FileStoreAttributes fileStoreAttributeCache() { + if (fileStoreAttributeCache == null) { + fileStoreAttributeCache = useConfig + ? FS.getFileStoreAttributes(file.toPath().getParent()) + : FALLBACK_FILESTORE_ATTRIBUTES; + } + return fileStoreAttributeCache; + } } |