pub struct BlockhashQueue { /* private fields */ }
Expand description

Low memory overhead, so can be cloned for every checkpoint

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impl BlockhashQueue

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pub fn new(max_age: usize) -> Self

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pub fn last_hash(&self) -> Hash

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pub fn get_lamports_per_signature(&self, hash: &Hash) -> Option<u64>

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pub fn is_hash_valid(&self, hash: &Hash) -> bool

Check if the age of the hash is within the queue’s max age

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pub fn is_hash_valid_for_age(&self, hash: &Hash, max_age: usize) -> bool

Check if the age of the hash is within the specified age

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pub fn get_hash_age(&self, hash: &Hash) -> Option<u64>

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pub fn genesis_hash(&mut self, hash: &Hash, lamports_per_signature: u64)

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pub fn register_hash(&mut self, hash: &Hash, lamports_per_signature: u64)

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pub fn get_recent_blockhashes(&self) -> impl Iterator<Item = IterItem<'_>>

👎Deprecated since 1.9.0: Please do not use, will no longer be available in the future

Trait Implementations§

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impl AbiExample for BlockhashQueue

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fn example() -> Self

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impl Clone for BlockhashQueue

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fn clone(&self) -> BlockhashQueue

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BlockhashQueue

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for BlockhashQueue

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for BlockhashQueue

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq<BlockhashQueue> for BlockhashQueue

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fn eq(&self, other: &BlockhashQueue) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for BlockhashQueue

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Eq for BlockhashQueue

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impl StructuralEq for BlockhashQueue

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impl StructuralPartialEq for BlockhashQueue

Auto Trait Implementations§

Blanket Implementations§

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impl<T> AbiEnumVisitor for Twhere T: Serialize + AbiExample + ?Sized,

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default fn visit_for_abi( &self, digester: &mut AbiDigester ) -> Result<AbiDigester, DigestError>

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impl<T> AbiEnumVisitor for Twhere T: Serialize + ?Sized,

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default fn visit_for_abi( &self, _digester: &mut AbiDigester ) -> Result<AbiDigester, DigestError>

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impl<T> AbiExample for T

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default fn example() -> T

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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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::<T>()

The alignment of pointer.
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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> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,