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Crate futures_util

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Expand description

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

Re-exports§

Modules§

  • compatcompat
    Interop between futures 0.1 and 0.3.
  • Asynchronous values.
  • ioio
    Asynchronous I/O.
  • Futures-powered synchronization primitives.
  • This module contains the Never type.
  • sinksink
    Asynchronous sinks.
  • Asynchronous streams.
  • Tools for working with tasks.

Macros§

  • Polls multiple futures simultaneously, returning a tuple of all results once complete.
  • A macro which yields to the event loop once.
  • Pins a value on the stack.
  • A macro which returns the result of polling a future once within the current async context.
  • Extracts the successful type of a Poll<T>.
  • Polls multiple futures and streams simultaneously, executing the branch for the future that finishes first. If multiple futures are ready, one will be pseudo-randomly selected at runtime. Futures directly passed to select! must be Unpin and implement FusedFuture.
  • 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.
  • Combines several streams, all producing the same Item type, into one stream. This is similar to select_all but does not require the streams to all be the same type. It also keeps the streams inline, and does not require Box<dyn Stream>s to be allocated. Streams passed to this macro must be Unpin.
  • Polls multiple futures simultaneously, resolving to a Result containing either a tuple of the successful outputs or an error.