Struct PieceProvider Copy item path

impl<PV> PieceProvider<PV>
where PV: PieceValidator,

pub fn new(node: Node, piece_validator: PV) -> Self

Creates new piece provider.

pub async fn get_from_cache<'a, PieceIndices>( &'a self, piece_indices: PieceIndices, ) -> impl Stream<Item = (PieceIndex, Option<Piece>)> + Unpin + 'a
where PieceIndices: IntoIterator<Item = PieceIndex> + 'a,

Get pieces with provided indices from cache.

Number of elements in returned stream is the same as number of unique piece_indices.

pub async fn get_piece_from_cache( &self, piece_index: PieceIndex, ) -> Option<Piece>

Returns piece by its index from farmer’s piece cache (L2)

pub async fn get_piece_from_peer( &self, peer_id: PeerId, piece_index: PieceIndex, ) -> Option<Piece>

Get piece from a particular peer.

pub async fn get_piece_from_archival_storage( &self, piece_index: PieceIndex, max_random_walking_rounds: usize, ) -> Option<Piece>

Get piece from archival storage (L1). The algorithm tries to get a piece from currently connected peers and falls back to random walking.

Trait Implementations§

impl<PV> Debug for PieceProvider<PV>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<PV> !UnwindSafe for PieceProvider<PV>

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more