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February 12, 2020 22:52
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Tokio multiple periodic actions with Interval
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[package] | |
name = "multidelaytest" | |
version = "0.1.0" | |
authors = ["Jeff McBride"] | |
edition = "2018" | |
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | |
[dependencies] | |
tokio = { version = "0.2", features = ["macros", "time", "sync", "rt-core", "rt-threaded", "rt-util", "stream"] } | |
futures = "0.3" |
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use futures::future; | |
use std::time::Duration; | |
use std::thread; | |
async fn start(frequencies: Vec<f32>) { | |
tokio::spawn(async move { | |
let mut streams = Vec::new(); | |
for f in frequencies { | |
streams.push(tokio::time::interval(Duration::from_secs_f32(1.0 / f))); | |
} | |
loop { | |
let futures = streams.iter_mut().map(|s| {Box::pin(s.tick())}); | |
let (_res, idx, _remaining_futures) = future::select_all(futures).await; | |
println!("Got sensor {:?}", idx); | |
} | |
}).await.unwrap() | |
} | |
#[tokio::main] | |
async fn main() { | |
println!("Launching background timers"); | |
start(vec![0.5, 1.0, 2.0]).await; | |
} |
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