Struct EraId 

pub struct EraId {
    pub network_name: String,
    pub start_slot: u64,
    pub slot_count: u32,
    pub hash: Option<[u8; 4]>,
}

Era file identifier

Fields

network_name: String

Network configuration name

start_slot: u64

First slot number in file

slot_count: u32

Number of slots in the file

hash: Option<[u8; 4]>

Optional hash identifier for this file First 4 bytes of the last historical root in the last state in the era file

Implementations

impl EraId

pub fn new( network_name: impl Into<String>, start_slot: u64, slot_count: u32, ) -> Self

Create a new EraId

pub const fn with_hash(self, hash: [u8; 4]) -> Self

Add a hash identifier to EraId

pub const fn era_number(&self) -> u64

Calculate which era number the file starts at

Trait Implementations

impl Clone for EraId

fn clone(&self) -> EraId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EraId

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

Formats the value using the given formatter.

impl EraFileId for EraId

fn to_file_name(&self) -> String

Convert to file name following the era file naming: <config-name>-<era-number>-<era-count>-<short-historical-root>.era https://github.com/eth-clients/e2store-format-specs/blob/main/formats/era.md#file-name See also https://github.com/eth-clients/e2store-format-specs/blob/main/formats/era.md

fn network_name(&self) -> &str

Get the network name

fn start_number(&self) -> u64

Get the starting number (block or slot)

fn count(&self) -> u32

Get the count of items

impl PartialEq for EraId

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for EraId

impl StructuralPartialEq for EraId

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: 48 bytes