Struct ArchivedHistorySegment 

pub struct ArchivedHistorySegment(/* private fields */);

Archived history segment after archiving is applied.

Dereferences to a fixed-size array of pieces, such that the number of pieces can’t be changed.

Implementations

impl ArchivedHistorySegment

pub const NUM_PIECES: usize = RecordedHistorySegment::NUM_PIECES

Number of pieces in one segment of archived history.

pub const SIZE: usize

Size of archived history segment in bytes.

It includes erasure coded InnerPieces (both source and parity) that are composed of crate::pieces::Records together with corresponding roots and proofs.

pub fn split_records_mut(&mut self) -> ([&mut Record; 128], [&mut Record; 128])

All records of this segment, split into source and parity halves

pub fn pieces(&self) -> Box<dyn ExactSizeIterator<Item = Piece> + '_>

Iterator over all pieces, see FlatPieces::pieces() for details

pub fn source_pieces(&self) -> impl ExactSizeIterator<Item = Piece> + '_

Iterator over source pieces, see FlatPieces::source_pieces() for details

pub fn parity_pieces(&self) -> impl ExactSizeIterator<Item = Piece> + '_

Iterator over parity pieces, see FlatPieces::parity_pieces() for details

pub fn to_shared(self) -> Self

Ensure archived history segment contains cheaply cloneable shared data.

Internally archived history segment uses CoW mechanism and can store either mutable owned data or data that is cheap to clone, calling this method will ensure further clones and returned pieces will not result in additional memory allocations.

Trait Implementations

impl AsMut<[InnerPiece; 256]> for ArchivedHistorySegment

fn as_mut(&mut self) -> &mut [InnerPiece; 256]

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<[[InnerPiece; 128]; 2]> for ArchivedHistorySegment

fn as_mut(&mut self) -> &mut [[InnerPiece; 128]; 2]

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<[InnerPiece; 256]> for ArchivedHistorySegment

fn as_ref(&self) -> &[InnerPiece; 256]

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<[[InnerPiece; 128]; 2]> for ArchivedHistorySegment

fn as_ref(&self) -> &[[InnerPiece; 128]; 2]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for ArchivedHistorySegment

fn clone(&self) -> ArchivedHistorySegment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArchivedHistorySegment

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

Formats the value using the given formatter.

impl Default for ArchivedHistorySegment

fn default() -> Self

Returns the “default value” for a type.

impl Deref for ArchivedHistorySegment

type Target = [InnerPiece; 256]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for ArchivedHistorySegment

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Eq for ArchivedHistorySegment

impl Index<PiecePosition> for ArchivedHistorySegment

type Output = InnerPiece

The returned type after indexing.

fn index(&self, index: PiecePosition) -> &Self::Output

Performs the indexing (container[index]) operation.

impl IndexMut<PiecePosition> for ArchivedHistorySegment

fn index_mut(&mut self, index: PiecePosition) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation.

impl PartialEq for ArchivedHistorySegment

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ArchivedHistorySegment