Created
April 29, 2019 13:10
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use futures::future::{Future, ok, select_ok}; // 0.1.26 | |
use tokio; // 0.1.18 | |
use tokio_timer::sleep; // 0.2.10 | |
use std::time::Duration; | |
fn i() -> impl Future<Item=(), Error=()> { | |
print!("Immediate\n"); | |
ok(()) | |
} | |
fn d() -> impl Future<Item=(), Error=()> { | |
sleep(Duration::from_millis(3000)).and_then(|_|{ | |
print!("Delayed\n"); | |
ok(()) | |
}).map_err(|_| ()) | |
} | |
fn main(){ | |
// Exits on completion of immediate and prints only Immediate | |
// let fut = i().select(d()).then(|_| ok(())); | |
// Waits for both the futures to complete and prints both Immediate and Delayed | |
let fut = i().join(d()).map(|_| ()); | |
tokio::run(fut); | |
} |
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