Crate futures_util

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

Modules

compat	Futures 0.1 / 0.3 shims
future	Futures
io	IO
lock	Futures-powered synchronization primitives.
never	Definition of the Never type, a stand-in for the ! type until it becomes stable.
sink	Sinks
stream	Streams
task	Task notification

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	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.
try_join	Polls multiple futures simultaneously, resolving to a Result containing either a tuple of the successful outputs or an error.