Skip to main content

DynamicBlockIndex

reth_era::ere::types::group

Struct DynamicBlockIndex 

Source 
pub struct DynamicBlockIndex { /* private fields */ }
Expand description

ere block index with a dynamic per-block component count.

Unlike era1’s single-offset-per-block index, an ere block can carry a variable number of components, so the index stores component_count offsets for every block.

Format: starting-number | indexes | indexes | ... | component-count | count

where each indexes group holds the offsets for one block: header-index | body-index | receipts-index? | difficulty-index? | proof-index?

component-count is 2-5 depending on which optional components are present. Offsets are i64 (they point backward to earlier entries); their little-endian bytes match the spec’s uint64.

See also https://github.com/eth-clients/e2store-format-specs/blob/main/formats/ere.md#specification

Implementations§

Source§

impl DynamicBlockIndex

Source

pub const fn new( starting_number: BlockNumber, component_count: u64, offsets: Vec<i64>, ) -> Self

Create a new DynamicBlockIndex.

offsets must be block-major with exactly component_count entries per block; the encoded block count is derived as offsets.len() / component_count.

Source

pub const fn starting_number(&self) -> u64

Get the starting block number

Source

pub const fn component_count(&self) -> u64

Get the number of index components stored per block

Source

pub const fn block_count(&self) -> usize

Get the number of blocks covered by this index

Source

pub fn offsets(&self) -> &[i64]

Get all offsets in block-major order

Source

pub fn offsets_for_block(&self, block_number: BlockNumber) -> Option<&[i64]>

Get the component_count offsets for a specific block number.

Returns a slice ordered as [header, body, (receipts)?, (difficulty)?, (proof)?], or None when the block is outside the range covered by this index.

Source

pub fn to_entry(&self) -> Entry

Convert to an Entry for storage in an e2store file.

Format: starting-number | offsets... | component-count | count

Source

pub fn from_entry(entry: &Entry) -> Result<Self, E2sError>

Create from an Entry

Trait Implementations§

Source§

impl Clone for DynamicBlockIndex

Source§

fn clone(&self) -> DynamicBlockIndex

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Debug for DynamicBlockIndex

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Eq for DynamicBlockIndex

Source§

impl PartialEq for DynamicBlockIndex

Source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl StructuralPartialEq for DynamicBlockIndex

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

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

Compare self to key and return true if they are equal.
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> Instrument for T

§

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

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

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

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.

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
§

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

§

fn vzip(self) -> V

§

impl<T> WithSubscriber for T

§

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
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 40 bytes