Struct LockWeak

pub struct LockWeak<T> { /* private fields */ }

Weak reference to a ParentArc.

This instance can be locked at any moment, you can try to upgrade it into a ChildArc which assures it can be read until the reader is dropped.

The typical way to obtain a Weak pointer is to call ParentArc::downgrade.

Implementations

impl<T> LockWeak<T>

pub fn upgrade(&self) -> Option<ChildArc<T>>

Upgrades this Weak reference into a ChildArc if the data is unlocked or still owned by the ParentArc.

Examples

use parc::{ParentArc, LockWeak};
use std::sync::Mutex;
fn main() {
    let parent = ParentArc::new(Mutex::new(true));

    let weak: LockWeak<_> = ParentArc::downgrade(&parent);
    let child = weak.upgrade().unwrap();
}

Trait Implementations

impl<T> Send for LockWeak<T>