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# parking
[](
https://github.com/smol-rs/parking/actions)
[](
https://github.com/smol-rs/parking)
[](
https://crates.io/crates/parking)
[](
https://docs.rs/parking)
Thread parking and unparking.
A parker is in either notified or unnotified state. Method `park()` blocks
the current thread until the parker becomes notified and then puts it back into unnotified
state. Method `unpark()` puts it into notified state.
## Examples
```rust
use std::thread;
use std::time::Duration;
use parking::Parker;
let p = Parker::new();
let u = p.unparker();
// Notify the parker.
u.unpark();
// Wakes up immediately because the parker is notified.
p.park();
thread::spawn(move || {
thread::sleep(Duration::from_millis(500));
u.unpark();
});
// Wakes up when `u.unpark()` notifies and then goes back into unnotified state.
p.park();
```
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
#### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
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