Struct EreId 

pub struct EreId {
    pub network_name: String,
    pub start_block: BlockNumber,
    pub block_count: u32,
    pub hash: Option<[u8; 4]>,
    pub include_era_count: bool,
    pub profiles: Vec<EreProfile>,
}

ere file identifier

Fields

network_name: String

Network configuration name

start_block: BlockNumber

First block number in file

block_count: u32

Number of blocks in the file

hash: Option<[u8; 4]>

Optional hash identifier for this file. First 4 bytes of the hash of the last block in the file.

include_era_count: bool

Whether to include era count in filename. It is used for custom exports when we don’t use the max number of items per file.

profiles: Vec<EreProfile>

Subset profiles applied to this file.

Kept sorted and deduplicated by the builders so the filename postfix renders in the spec-mandated alphabetical order. Empty means the default, fully verifiable profile.

Implementations

impl EreId

pub fn new( network_name: impl Into<String>, start_block: BlockNumber, block_count: u32, ) -> Self

Create a new EreId

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

Add a hash identifier to EreId

pub const fn with_era_count(self) -> Self

Include era count in filename, for custom block-per-file exports

pub fn with_profile(self, profile: EreProfile) -> Self

Add a subset EreProfile to this file, keeping profiles sorted and deduplicated.

pub fn with_profiles( self, profiles: impl IntoIterator<Item = EreProfile>, ) -> Self

Add several subset profiles to this file, keeping profiles sorted and deduplicated.

Trait Implementations

impl Clone for EreId

fn clone(&self) -> EreId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EreId

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

Formats the value using the given formatter.

impl Eq for EreId

impl EraFileId for EreId

fn to_file_name(&self) -> String

Render the filename, appending any subset-profile postfixes before the extension.

Default profile: <network>-<era-number>-<short-block-hash>.ere. With profiles: <network>-<era-number>-<short-block-hash>-<profile>...-.ere, in alphabetical profile order, e.g. mainnet-00000-4bb7de2e-noproofs-noreceipts.ere.

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

const FILE_TYPE: EraFileType = EraFileType::Ere

File type for this identifier

const ITEMS_PER_ERA: u64

Number of items, slots for era, blocks for era1, per era

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

fn hash(&self) -> Option<[u8; 4]>

Get the optional hash identifier

fn include_era_count(&self) -> bool

Whether to include era count in filename

fn era_number(&self) -> u64

Calculate era number

fn era_count(&self) -> u64

Calculate the number of eras spanned per file.

impl PartialEq for EreId

fn eq(&self, other: &EreId) -> 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 StructuralPartialEq for EreId

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: 72 bytes