Struct SlotmapEntry 

pub struct SlotmapEntry<'a, T> { /* private fields */ }

SlotmapEntry is a reference to an element stored in the slotmap.

The SlotmapEntry is created when the element is accessed in the slotmap. It ensures that the element cannot be removed while there is a thread actively accessing it.

Note

It is the responsibility of the user to ensure that the SlotmapEntry is dropped prior to removing the element from the slotmap. Failure to do so will result in a deadlock, where the erasing method will wait indefinitely for the SlotmapEntry to be dropped.

Example

use rust_lockless_slotmap::LocklessSlotmap;
use parking_lot::RawRwLock;
 
let slotmap: LocklessSlotmap<usize, RawRwLock> = LocklessSlotmap::new();
let ticket = slotmap.insert(42);
 
{
   let entry = slotmap.get(ticket).unwrap();
   assert_eq!(*entry, 42);
}

Implementations

impl<'a, T> SlotmapEntry<'a, T>

pub fn get<'b: 'a>(&'b self) -> &'b T

Get a reference to the element stored in the slotmap.

This reference cannot outlive the protection of the SlotmapEntry. Therefore all access to this element are guaranteed to be safe.

Returns

A reference to the element stored in the slotmap.

Trait Implementations

impl<'a, T> Deref for SlotmapEntry<'a, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T> Drop for SlotmapEntry<'a, T>

fn drop(&mut self)

Executes the destructor for this type.