#async #await #future #futures

futures-polling

An enum similar to Poll, but containing a future in its Pending variant

3 unstable releases

0.1.1 Sep 4, 2020
0.1.0 Sep 4, 2020
0.0.0 Aug 31, 2020

#430 in Asynchronous

MPL-2.0 license

51KB
237 lines

An enum similar to Poll, but containing a future in its Pending variant

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Example

use futures_lite::future;
use futures_polling::{FuturePollingExt, Polling};

let mut polling = async {
    future::yield_now().await;
    42
}.polling();

assert_eq!(polling.is_pending(), true);

// Poll just once.
polling.polling_once().await;
assert_eq!(polling.is_pending(), true);

// Poll until the inner future is ready.
assert_eq!(polling.await, 42);

License

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.


lib.rs:

An enum similar to [Poll], but containing a future in its Pending variant.

Example

use futures_lite::future;
use futures_polling::{FuturePollingExt, Polling};

# future::block_on(async {
#
let mut polling = async {
    future::yield_now().await;
    42
}.polling();

assert_eq!(polling.is_pending(), true);

// Poll just once.
polling.polling_once().await;
assert_eq!(polling.is_pending(), true);

// Poll until the inner future is ready.
assert_eq!(polling.await, 42);
#
# });

No runtime deps