Enum FileIdentifier 

pub enum FileIdentifier {
    Extended(FileId),
    FileId64(u64),
    ObjectId([u8; 16]),
}

What an open by identifier names the file by: one of the three kinds the FILE_ID_DESCRIPTOR page lists. Each is opened on the volume of the hint the open is given, which is the only volume the call is told of.

Variants

Extended(FileId)

ExtendedFileIdType: a FileId’s 128-bit identifier. A FileId also names a volume, which the call does not take, so the opened file’s identity is read and must be this one, volume serial included; a hint on another volume is refused with IdentityMismatch and not answered with another volume’s file.

FileId64(u64)

FileIdType: a 64-bit file ID, which GetFileInformationByHandle reports as nFileIndexHigh and nFileIndexLow. It names no volume, so there is nothing to check.

ObjectId([u8; 16])

ObjectIdType: an object ID, as the 16 bytes of the GUID in the order Windows stores one in memory, which is how FSCTL_CREATE_OR_GET_OBJECT_ID reports it (FILE_OBJECTID_BUFFER’s ObjectId) and how fsutil objectid prints it. It names no volume.

Trait Implementations

impl Clone for FileIdentifier

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FileIdentifier

impl Debug for FileIdentifier

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for FileIdentifier

impl From<FileId> for FileIdentifier

fn from(id: FileId) -> Self

Converts to this type from the input type.

impl Hash for FileIdentifier

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FileIdentifier

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FileIdentifier