Enum ChunkIndex 

pub enum ChunkIndex {
    BtreeV1,
    BtreeV2,
    SingleChunk,
    Implicit,
    FixedArray,
    ExtensibleArray,
}

The chunk index structure a chunked dataset uses on disk (read mode only) — which of libhdf5’s chunk-lookup structures the layout message names.

BtreeV1 belongs to the version-3 chunked layout message (the only index a file whose superblock predates version 2 can carry); the other five are what a version-4 message’s index-type byte selects, per H5D__layout_set_latest_indexing (H5Dlayout.c).

Variants

BtreeV1

Version-1 B-tree — the classic chunk index, and the only one a version-3 chunked layout message can carry.

BtreeV2

Version-2 B-tree — two or more unlimited dimensions.

SingleChunk

A single index entry for a dataset whose one chunk covers the whole dataspace (dims == max_dims == chunk_dims).

Implicit

No index structure at all: chunk addresses are computed arithmetically over a contiguous run (no filter, early allocation).

FixedArray

Fixed-size array — a fixed shape needing per-chunk bookkeeping.

ExtensibleArray

Extensible array — exactly one unlimited dimension.

Trait Implementations

impl Clone for ChunkIndex

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 ChunkIndex

impl Debug for ChunkIndex

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

Formats the value using the given formatter.

impl Eq for ChunkIndex

impl PartialEq for ChunkIndex

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ChunkIndex