Struct KeyedLock 

pub struct KeyedLock { /* private fields */ }

A bank of sharded async mutexes providing per-key single-flight.

Implementations

impl KeyedLock

pub fn new(shards: usize) -> Self

Creates a lock bank with at least shards shards (rounded up to a power of two for fast masking).

pub async fn lock(&self, key: &str) -> KeyGuard

Acquires the lock for key, waiting if necessary.

pub fn try_lock(&self, key: &str) -> Option<KeyGuard>

Tries to acquire the lock for key without waiting.

Returns None if another caller currently holds the shard — used by non-blocking paths (eager refresh) that must not stall the caller.

Trait Implementations

impl Debug for KeyedLock

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

Formats the value using the given formatter.

impl Default for KeyedLock

fn default() -> Self

Returns the “default value” for a type.