pub enum Sharded<T> {
Single(Lock<T>),
Shards(Box<[CacheAligned<Lock<T>>; 32]>),
}
Expand description
An array of cache-line aligned inner locked structures with convenience methods. A single field is used when the compiler uses only one thread.
Variants§
Implementations§
source§impl<T> Sharded<T>
impl<T> Sharded<T>
pub fn new(value: impl FnMut() -> T) -> Self
sourcepub fn get_shard_by_value<K: Hash + ?Sized>(&self, _val: &K) -> &Lock<T>
pub fn get_shard_by_value<K: Hash + ?Sized>(&self, _val: &K) -> &Lock<T>
The shard is selected by hashing val
with FxHasher
.
pub fn get_shard_by_hash(&self, hash: u64) -> &Lock<T>
pub fn get_shard_by_index(&self, _i: usize) -> &Lock<T>
sourcepub fn lock_shard_by_value<K: Hash + ?Sized>(
&self,
_val: &K,
) -> LockGuard<'_, T>
pub fn lock_shard_by_value<K: Hash + ?Sized>( &self, _val: &K, ) -> LockGuard<'_, T>
The shard is selected by hashing val
with FxHasher
.
pub fn lock_shard_by_hash(&self, hash: u64) -> LockGuard<'_, T>
pub fn lock_shard_by_index(&self, _i: usize) -> LockGuard<'_, T>
pub fn lock_shards(&self) -> impl Iterator<Item = LockGuard<'_, T>>
pub fn try_lock_shards(&self) -> impl Iterator<Item = Option<LockGuard<'_, T>>>
source§impl<K: Eq + Hash + Copy + IntoPointer> Sharded<HashMap<K, (), BuildHasherDefault<FxHasher>>>
impl<K: Eq + Hash + Copy + IntoPointer> Sharded<HashMap<K, (), BuildHasherDefault<FxHasher>>>
pub fn contains_pointer_to<T: Hash + IntoPointer>(&self, value: &T) -> bool
Trait Implementations§
Auto Trait Implementations§
impl<T> DynSend for Sharded<T>where
T: DynSend,
impl<T> DynSync for Sharded<T>where
T: DynSend,
impl<T> !Freeze for Sharded<T>
impl<T> !RefUnwindSafe for Sharded<T>
impl<T> Send for Sharded<T>where
T: Send,
impl<T> !Sync for Sharded<T>
impl<T> Unpin for Sharded<T>where
T: Unpin,
impl<T> UnwindSafe for Sharded<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.