impl Unparker

fn unpark(&self)

Atomically makes the token available if it is not already.

This method will wake up the thread blocked on park or park_timeout, if there is any.

Examples

use std::thread;
use std::time::Duration;
use crossbeam_utils::sync::Parker;

let p = Parker::new();
let u = p.unparker().clone();

thread::spawn(move || {
    thread::sleep(Duration::from_millis(500));
    u.unpark();
});

// Wakes up when `u.unpark()` provides the token.
p.park();
# std::thread::sleep(std::time::Duration::from_millis(500)); // wait for background threads closed: https://github.com/rust-lang/miri/issues/1371

fn into_raw(this: Unparker) -> *const ()

Converts an Unparker into a raw pointer.

Examples

use crossbeam_utils::sync::{Parker, Unparker};

let p = Parker::new();
let u = p.unparker().clone();
let raw = Unparker::into_raw(u);
# let _ = unsafe { Unparker::from_raw(raw) };

unsafe fn from_raw(ptr: *const ()) -> Unparker

Converts a raw pointer into an Unparker.

Safety

This method is safe to use only with pointers returned by Unparker::into_raw.

Examples

use crossbeam_utils::sync::{Parker, Unparker};

let p = Parker::new();
let u = p.unparker().clone();

let raw = Unparker::into_raw(u);
let u = unsafe { Unparker::from_raw(raw) };