Crate ephemeropt

An ephemeral Option for Rust. When created, this EphemeralOption takes an expiry time and a value, and the EphemeralOption will revert to None after the time runs out.

Example

use ephemeropt::EphemeralOption;

let mut num_opt = EphemeralOption::new(0, std::time::Duration::from_secs(1));
// Will only go up to 10, because every other call will be cached
for _ in 0..=20 {
    match num_opt.get() {
        Some(&num) => println!("{num}"),
        None => {
            let prev_num = num_opt.get_expired().unwrap();
            let num = num_opt.insert(prev_num + 1);
            println!("{num}");
        }
    }
    std::thread::sleep(std::time::Duration::from_millis(500));
}

Structs

• EphemeralOption
  An Option that automatically reverts to None after a certain amount of time