Struct blackhole::OneTime

pub struct OneTime<F> where
    F: FnOnce() + Send + 'static,  { /* fields omitted */ }

A job that runs once

Panics

It will panic if run more than once.

Examples

use blackhole::{BlackHole, OneTime};

let black_hole = BlackHole::make(4, 8).unwrap();
for i in 0..10 {
    match black_hole.throw(OneTime::new(move || println!("{}", i))) {
        Ok(job) => if let Some(job) = job {
            blackhole::run_to_end(job);
        },
        Err(err) => eprintln!("BlackHole... exploded: {}", err),
    };
}
black_hole.escape_on_idle().unwrap();

Implementations

impl<F> OneTime<F> where
    F: FnOnce() + Send + 'static, 

pub fn new(f: F) -> Self

Makes new instance

Trait Implementations

impl<F: Debug> Debug for OneTime<F> where
    F: FnOnce() + Send + 'static, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F> Job for OneTime<F> where
    F: FnOnce() + Send + 'static, 

pub fn run(&mut self) -> Option<Box<dyn Job>>

Runs the job