Struct aptos_parallel_executor::executor::MVHashMapView

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pub struct MVHashMapView<'a, K, V> { /* private fields */ }

Expand description

A struct that is always used by a single thread performing an execution task. The struct is passed to the VM and acts as a proxy to resolve reads first in the shared multi-version data-structure. It also allows the caller to track the read-set and any dependencies.

TODO(issue 10177): MvHashMapView currently needs to be sync due to trait bounds, but should not be. In this case, the read_dependency member can have a RefCell type and the captured_reads member can have RefCell<Vec<ReadDescriptor>> type.

Implementations

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impl<'a, K: PartialOrd + Send + Clone + Hash + Eq, V: Send + Sync> MVHashMapView<'a, K, V>

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pub fn take_reads(&self) -> Vec<ReadDescriptor<K>>

Drains the captured reads.

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pub fn read(&self, key: &K) -> Option<Arc<V>>

Captures a read from the VM execution.

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pub fn txn_idx(&self) -> usize

Return txn_idx associated with the MVHashMapView

Auto Trait Implementations

impl<'a, K, V> !RefUnwindSafe for MVHashMapView<'a, K, V>

impl<'a, K, V> Send for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Sync for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Unpin for MVHashMapView<'a, K, V> where
K: Unpin,

impl<'a, K, V> !UnwindSafe for MVHashMapView<'a, K, V>

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.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

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 aptos_parallel_executor::executor::MVHashMapView

Implementations

impl<'a, K: PartialOrd + Send + Clone + Hash + Eq, V: Send + Sync> MVHashMapView<'a, K, V>

pub fn take_reads(&self) -> Vec<ReadDescriptor<K>>

pub fn read(&self, key: &K) -> Option<Arc<V>>

pub fn txn_idx(&self) -> usize

Auto Trait Implementations

impl<'a, K, V> !RefUnwindSafe for MVHashMapView<'a, K, V>

impl<'a, K, V> Send for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Sync for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Unpin for MVHashMapView<'a, K, V> where
K: Unpin,

impl<'a, K, V> !UnwindSafe for MVHashMapView<'a, K, V>

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::<T>()

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>

Struct aptos_parallel_executor::executor::MVHashMapView

Implementations

impl<'a, K: PartialOrd + Send + Clone + Hash + Eq, V: Send + Sync> MVHashMapView<'a, K, V>

pub fn take_reads(&self) -> Vec<ReadDescriptor<K>>

pub fn read(&self, key: &K) -> Option<Arc<V>>

pub fn txn_idx(&self) -> usize

Auto Trait Implementations

impl<'a, K, V> !RefUnwindSafe for MVHashMapView<'a, K, V>

impl<'a, K, V> Send for MVHashMapView<'a, K, V> where K: Send + Sync, V: Send + Sync,

impl<'a, K, V> Sync for MVHashMapView<'a, K, V> where K: Send + Sync, V: Send + Sync,

impl<'a, K, V> Unpin for MVHashMapView<'a, K, V> where K: Unpin,

impl<'a, K, V> !UnwindSafe for MVHashMapView<'a, K, V>

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::<T>()

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>

impl<'a, K, V> Send for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Sync for MVHashMapView<'a, K, V> where
K: Send + Sync,
V: Send + Sync,

impl<'a, K, V> Unpin for MVHashMapView<'a, K, V> where
K: Unpin,

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>,