Struct concread::hashtrie::HashTrieReadTxn

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pub struct HashTrieReadTxn<'a, K, V> where
    K: Hash + Eq + Clone + Debug + Sync + Send + 'static,
    V: Clone + Sync + Send + 'static,  { /* private fields */ }

Expand description

An active read transaction over a HashTrie. The data in this tree is guaranteed to not change and will remain consistent for the life of this transaction.

Implementations

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impl<'a, K: Hash + Eq + Clone + Debug + Sync + Send + 'static, V: Clone + Sync + Send + 'static> HashTrieReadTxn<'a, K, V>

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pub fn get<'b, Q: ?Sized>(&'a self, k: &'b Q) -> Option<&'a V> where
K: Borrow<Q>,
Q: Hash + Eq,

Retrieve a value from the tree. If the value exists, a reference is returned as Some(&V), otherwise if not present None is returned.

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pub fn contains_key<'b, Q: ?Sized>(&'a self, k: &'b Q) -> bool where
K: Borrow<Q>,
Q: Hash + Eq,

Assert if a key exists in the tree.

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pub fn len(&self) -> usize

Returns the current number of k:v pairs in the tree

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pub fn is_empty(&self) -> bool

Determine if the set is currently empty

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pub fn iter(&self) -> Iter<'_, K, V>ⓘNotable traits for Iter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for Iter<'a, K, V> type Item = (&'a K, &'a V);`

Iterator over (&K, &V) of the set

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pub fn values(&self) -> ValueIter<'_, K, V>ⓘNotable traits for ValueIter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for ValueIter<'a, K, V> type Item = &'a V;`

Iterator over &K

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pub fn keys(&self) -> KeyIter<'_, K, V>ⓘNotable traits for KeyIter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for KeyIter<'a, K, V> type Item = &'a K;`

Iterator over &V

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pub fn to_snapshot(&'a self) -> HashTrieReadSnapshot<'a, K, V>

Create a read-snapshot of the current tree. As this is the read variant, it IS safe, and guaranteed the tree will not change.

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for HashTrieReadTxn<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

impl<'a, K, V> Send for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> Sync for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> Unpin for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> UnwindSafe for HashTrieReadTxn<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

Blanket Implementations

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

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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

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

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

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

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> Pointable for T

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const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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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

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

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

Performs the conversion.

Struct concread::hashtrie::HashTrieReadTxn

Implementations

impl<'a, K: Hash + Eq + Clone + Debug + Sync + Send + 'static, V: Clone + Sync + Send + 'static> HashTrieReadTxn<'a, K, V>

pub fn get<'b, Q: ?Sized>(&'a self, k: &'b Q) -> Option<&'a V> where K: Borrow<Q>, Q: Hash + Eq,

pub fn contains_key<'b, Q: ?Sized>(&'a self, k: &'b Q) -> bool where K: Borrow<Q>, Q: Hash + Eq,

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn iter(&self) -> Iter<'_, K, V>ⓘNotable traits for Iter<'a, K, V>impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for Iter<'a, K, V> type Item = (&'a K, &'a V);

pub fn values(&self) -> ValueIter<'_, K, V>ⓘNotable traits for ValueIter<'a, K, V>impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for ValueIter<'a, K, V> type Item = &'a V;

pub fn keys(&self) -> KeyIter<'_, K, V>ⓘNotable traits for KeyIter<'a, K, V>impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for KeyIter<'a, K, V> type Item = &'a K;

pub fn to_snapshot(&'a self) -> HashTrieReadSnapshot<'a, K, V>

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for HashTrieReadTxn<'a, K, V> where K: RefUnwindSafe, V: RefUnwindSafe,

impl<'a, K, V> Send for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> Sync for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> Unpin for HashTrieReadTxn<'a, K, V>

impl<'a, K, V> UnwindSafe for HashTrieReadTxn<'a, K, V> where K: RefUnwindSafe, V: RefUnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

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

type Error = Infallible

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

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

pub fn get<'b, Q: ?Sized>(&'a self, k: &'b Q) -> Option<&'a V> where
K: Borrow<Q>,
Q: Hash + Eq,

pub fn contains_key<'b, Q: ?Sized>(&'a self, k: &'b Q) -> bool where
K: Borrow<Q>,
Q: Hash + Eq,

pub fn iter(&self) -> Iter<'_, K, V>ⓘNotable traits for Iter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for Iter<'a, K, V> type Item = (&'a K, &'a V);`

pub fn values(&self) -> ValueIter<'_, K, V>ⓘNotable traits for ValueIter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for ValueIter<'a, K, V> type Item = &'a V;`

pub fn keys(&self) -> KeyIter<'_, K, V>ⓘNotable traits for KeyIter<'a, K, V>`impl<'a, K: Clone + Hash + Eq + Debug, V: Clone> Iterator for KeyIter<'a, K, V> type Item = &'a K;`

impl<'a, K, V> RefUnwindSafe for HashTrieReadTxn<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

impl<'a, K, V> UnwindSafe for HashTrieReadTxn<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

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>,