Crate futures_util

Combinators and utilities for working with Futures, Streams, Sinks, and the AsyncRead and AsyncWrite traits.

Re-exports

• pub use crate::future::Future;
• pub use crate::future::FutureExt;
• pub use crate::future::TryFuture;
• pub use crate::future::TryFutureExt;
• pub use crate::stream::Stream;
• pub use crate::stream::StreamExt;
• pub use crate::stream::TryStream;
• pub use crate::stream::TryStreamExt;
• pub use crate::sink::Sink;
• pub use crate::sink::SinkExt;

Modules

• future
  Asynchronous values.
• never
  This module contains the Never type.
• sink
  Asynchronous sinks.
• stream
  Asynchronous streams.
• task
  Tools for working with tasks.

Macros

• join
  Polls multiple futures simultaneously, returning a tuple of all results once complete.
• pending
  A macro which yields to the event loop once.
• pin_mut
  Pins a value on the stack.
• poll
  A macro which returns the result of polling a future once within the current async context.
• ready
  Extracts the successful type of a Poll<T>.
• select_biased
  Polls multiple futures and streams simultaneously, executing the branch for the future that finishes first. Unlike select!, if multiple futures are ready, one will be selected in order of declaration. Futures directly passed to select_biased! must be Unpin and implement FusedFuture.
• try_join
  Polls multiple futures simultaneously, resolving to a Result containing either a tuple of the successful outputs or an error.