Struct FallbackPieceGetter

pub struct FallbackPieceGetter<T, U>
where
    T: PieceGetter + Send + Sync,
    U: PieceGetter + Send + Sync,
{ /* private fields */ }

A piece getter that falls back to another piece getter if the first one does not return the piece. If both piece getters don’t return the piece, returns the result of the second piece getter.

Trait Implementations

impl<T, U> Debug for FallbackPieceGetter<T, U>

where T: PieceGetter + Send + Sync + Debug, U: PieceGetter + Send + Sync + Debug,

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

Formats the value using the given formatter.

impl<T, U> PieceGetter for FallbackPieceGetter<T, U>

where T: PieceGetter + Send + Sync, U: PieceGetter + Send + Sync,

fn get_piece<'life0, 'async_trait>( &'life0 self, piece_index: PieceIndex, ) -> Pin<Box<dyn Future<Output = Result<Option<Piece>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get piece by index.

fn get_pieces<'a, 'async_trait>( &'a self, piece_indices: Vec<PieceIndex>, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn Stream<Item = (PieceIndex, Result<Option<Piece>>)> + Send + Unpin + 'a>>> + Send + 'async_trait>>

where Self: 'async_trait, 'a: 'async_trait,

Get pieces with provided indices.

fn with_fallback<U>(self, other: U) -> FallbackPieceGetter<Self, U>

where Self: Send + Sync + Sized, U: PieceGetter + Send + Sync,

Returns a piece getter that falls back to other if self does not return the piece. Piece getters may need to be wrapped in Arc to be used with this method.