Struct Item 

struct Item<H> {
    prev: Option<ItemIndex>,
    next: Option<ItemIndex>,
    handle: Option<H>,
}

Stores a strong handle controlling the lifetime of the data in the LRU cache, and a doubly-linked list node specifying where in the current LRU order this element exists. These items are themselves backed by a freelist to minimize heap allocations and improve cache access patterns.

Fields

prev: Option<ItemIndex>

next: Option<ItemIndex>

handle: Option<H>

Trait Implementations

impl<H: Debug> Debug for Item<H>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<H> MallocSizeOf for Item<H>

where H: MallocSizeOf,

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl<H> Serialize for Item<H>

where H: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.