Struct ethcore_db::cache_manager::CacheManager

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pub struct CacheManager<T> { /* private fields */ }

Expand description

DB cache manager

Implementations

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impl<T> CacheManager<T> where
T: Eq + Hash,

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pub fn new(
    pref_cache_size: usize,
    max_cache_size: usize,
    bytes_per_cache_entry: usize
) -> Self

Create new cache manager with preferred (heap) sizes.

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pub fn note_used(&mut self, id: T)

Mark element as used.

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pub fn collect_garbage<F>(&mut self, current_size: usize, notify_unused: F) where
F: FnMut(HashSet<T>) -> usize,

Collects unused objects from cache. First params is the current size of the cache. Second one is an with objects to remove. It should also return new size of the cache.

Auto Trait Implementations

impl<T> RefUnwindSafe for CacheManager<T> where
T: RefUnwindSafe,

impl<T> Send for CacheManager<T> where
T: Send,

impl<T> Sync for CacheManager<T> where
T: Sync,

impl<T> Unpin for CacheManager<T> where
T: Unpin,

impl<T> UnwindSafe for CacheManager<T> where
T: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<V, T> VZip<V> for T where
V: MultiLane<T>,

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Struct ethcore_db::cache_manager::CacheManager

Implementations

impl<T> CacheManager<T> where
T: Eq + Hash,

pub fn new(
    pref_cache_size: usize,
    max_cache_size: usize,
    bytes_per_cache_entry: usize
) -> Self

pub fn note_used(&mut self, id: T)

pub fn collect_garbage<F>(&mut self, current_size: usize, notify_unused: F) where
F: FnMut(HashSet<T>) -> usize,

Auto Trait Implementations

impl<T> RefUnwindSafe for CacheManager<T> where
T: RefUnwindSafe,

impl<T> Send for CacheManager<T> where
T: Send,

impl<T> Sync for CacheManager<T> where
T: Sync,

impl<T> Unpin for CacheManager<T> where
T: Unpin,

impl<T> UnwindSafe for CacheManager<T> where
T: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> Erased for T

Struct ethcore_db::cache_manager::CacheManager

Implementations

impl<T> CacheManager<T> where T: Eq + Hash,

pub fn new( pref_cache_size: usize, max_cache_size: usize, bytes_per_cache_entry: usize) -> Self

pub fn note_used(&mut self, id: T)

pub fn collect_garbage<F>(&mut self, current_size: usize, notify_unused: F) where F: FnMut(HashSet<T>) -> usize,

Auto Trait Implementations

impl<T> RefUnwindSafe for CacheManager<T> where T: RefUnwindSafe,

impl<T> Send for CacheManager<T> where T: Send,

impl<T> Sync for CacheManager<T> where T: Sync,

impl<T> Unpin for CacheManager<T> where T: Unpin,

impl<T> UnwindSafe for CacheManager<T> where T: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> Erased for T

impl<T> CacheManager<T> where
T: Eq + Hash,

pub fn new(
pref_cache_size: usize,
max_cache_size: usize,
bytes_per_cache_entry: usize
) -> Self

pub fn collect_garbage<F>(&mut self, current_size: usize, notify_unused: F) where
F: FnMut(HashSet<T>) -> usize,

impl<T> RefUnwindSafe for CacheManager<T> where
T: RefUnwindSafe,

impl<T> Send for CacheManager<T> where
T: Send,

impl<T> Sync for CacheManager<T> where
T: Sync,

impl<T> Unpin for CacheManager<T> where
T: Unpin,

impl<T> UnwindSafe for CacheManager<T> where
T: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,