Struct rustc_data_structures::sharded::Sharded
source · pub struct Sharded<T> {
shards: [CacheAligned<Lock<T>>; 1],
}
Expand description
An array of cache-line aligned inner locked structures with convenience methods.
Fields
shards: [CacheAligned<Lock<T>>; 1]
Implementations
sourceimpl<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>
pub fn lock_shards(&self) -> Vec<LockGuard<'_, T>>
pub fn try_lock_shards(&self) -> Option<Vec<LockGuard<'_, T>>>
sourceimpl<K: Eq + Hash + Copy + IntoPointer> Sharded<HashMap<K, V, BuildHasherDefault<FxHasher>>>
impl<K: Eq + Hash + Copy + IntoPointer> Sharded<HashMap<K, V, BuildHasherDefault<FxHasher>>>
pub fn contains_pointer_to<T: Hash + IntoPointer>(&self, value: &T) -> bool
Trait Implementations
Auto Trait Implementations
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
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> Erased for T
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.