Trait TryParallelExt 

pub trait TryParallelExt<T, E>
where
    Self: TryStream<Ok = T, Error = E, Item = Result<T, E>> + Send + Sized,
    E: From<JoinError> + From<Error> + Send + 'static,
    T: Send + 'static,
{
    // Required method
    fn paralleln_and_then<U, F, N, H>(
        self,
        h: H,
        n: N,
        f: F,
    ) -> impl TryStream<Ok = U, Error = E, Item = Result<U, E>> + Send
       where N: Into<Option<usize>>,
             H: Into<Option<Handle>>,
             F: Fn(Self::Ok) -> Result<U, E> + Clone + Send + 'static,
             U: Send + 'static;

    // Provided method
    fn parallel_and_then<U, F, H>(
        self,
        h: H,
        f: F,
    ) -> impl TryStream<Ok = U, Error = E, Item = Result<U, E>> + Send
       where H: Into<Option<Handle>>,
             F: Fn(Self::Ok) -> Result<U, E> + Clone + Send + 'static,
             U: Send + 'static { ... }
}

Parallelism extensions to augment futures::StreamExt. These combinators are for computation-oriented workloads, unlike -band combinators for I/O workloads; these default to the available compute parallelism for the system. Threads are currently drawn from the tokio-spawn pool. Results are unordered.

Required Methods

fn paralleln_and_then<U, F, N, H>( self, h: H, n: N, f: F, ) -> impl TryStream<Ok = U, Error = E, Item = Result<U, E>> + Send

where N: Into<Option<usize>>, H: Into<Option<Handle>>, F: Fn(Self::Ok) -> Result<U, E> + Clone + Send + 'static, U: Send + 'static,

Provided Methods

fn parallel_and_then<U, F, H>( self, h: H, f: F, ) -> impl TryStream<Ok = U, Error = E, Item = Result<U, E>> + Send

where H: Into<Option<Handle>>, F: Fn(Self::Ok) -> Result<U, E> + Clone + Send + 'static, U: Send + 'static,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T, E, S> TryParallelExt<T, E> for S

where S: TryStream<Ok = T, Error = E, Item = Result<T, E>> + Send + Sized, E: From<JoinError> + From<Error> + Send + 'static, T: Send + 'static,