internal static void SetFsoDateTimeInternal(bool isFolder, KernelTransaction transaction, string path, DateTime?creationTimeUtc, DateTime?lastAccessTimeUtc, DateTime?lastWriteTimeUtc, PathFormat pathFormat) { // Because we already check here, use false for CreateFileInternal() to prevent another check. if (pathFormat == PathFormat.RelativePath) { Path.CheckValidPath(path, false, false); } using (SafeGlobalMemoryBufferHandle creationTime = SafeGlobalMemoryBufferHandle.FromLong(creationTimeUtc.HasValue ? creationTimeUtc.Value.ToFileTimeUtc() : (long?)null)) using (SafeGlobalMemoryBufferHandle lastAccessTime = SafeGlobalMemoryBufferHandle.FromLong(lastAccessTimeUtc.HasValue ? lastAccessTimeUtc.Value.ToFileTimeUtc() : (long?)null)) using (SafeGlobalMemoryBufferHandle lastWriteTime = SafeGlobalMemoryBufferHandle.FromLong(lastWriteTimeUtc.HasValue ? lastWriteTimeUtc.Value.ToFileTimeUtc() : (long?)null)) using (SafeFileHandle safeHandle = CreateFileInternal(transaction, path, isFolder ? ExtendedFileAttributes.BackupSemantics : ExtendedFileAttributes.Normal, null, FileMode.Open, FileSystemRights.WriteAttributes, FileShare.Delete | FileShare.Write, false, pathFormat)) if (!NativeMethods.SetFileTime(safeHandle, creationTime, lastAccessTime, lastWriteTime)) { NativeError.ThrowException(path); } }