Struct arc_swap::gen_lock::Global

pub struct Global;

The default, global lock.

The lock is stored out-of-band, globally. This means that one ArcSwap with this lock storage is only one machine word large, but a lock on one instance blocks the other, independent ones.

It has several shards so threads are less likely to collide (HW-contend) on them.

Trait Implementations

impl Default for Global

fn default() -> Global

Returns the “default value” for a type.

impl LockStorage for Global

type Shards = [Shard; 9]

The type for keeping several shards.

fn gen_idx(&self) -> &AtomicUsize

Access to the generation index.

fn shards(&self) -> &[Shard; 9]

Access to the shards storage.

fn choose_shard(&self) -> usize

Pick one shard of the all selected.