ostd::sync::rcu

Function delay_drop

Source 
unsafe fn delay_drop<P: NonNullPtr + Send>(
    pointer: NonNull<<P as NonNullPtr>::Target>,
)
Expand description

Delays the dropping of a NonNullPtr after the RCU grace period.

This is internally needed for implementing Rcu and RcuOption because we cannot alias a Box. Restoring P and use RcuDrop for it can lead to multiple Boxes simultaneously pointing to the same content.

ยงSafety

The pointer must be previously returned by into_raw, will not be used after the end of the current grace period, and will only be dropped once.