Struct UnordedEventLogId

pub struct UnordedEventLogId {
    pub(crate) ts_usecs: u64,
    pub(crate) counter: u64,
}

A self-allocated ID that is mostly ordered

The goal here is to avoid concurrent database transaction conflicts due the ID allocation. Instead they are picked based on a time and a counter, so they are mostly but not strictly ordered and monotonic, and even more imporantly: not contiguous.

Fields

ts_usecs: u64

counter: u64

Implementations

impl UnordedEventLogId

pub(crate) fn new() -> Self

Trait Implementations

impl DatabaseRecord for UnordedEventLogId

const DB_PREFIX: u8 = 57u8

type Key = UnordedEventLogId

type Value = UnorderedEventLogEntry

const NOTIFY_ON_MODIFY: bool = false

impl Debug for UnordedEventLogId

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

Formats the value using the given formatter.

impl Decodable for UnordedEventLogId

fn consensus_decode_from_finite_reader<D: Read>( d: &mut D, modules: &ModuleDecoderRegistry, ) -> Result<Self, DecodeError>

Decode Self from a size-limited reader.

fn consensus_decode<R>( r: &mut R, modules: &ModuleRegistry<Decoder, DecodingMode>, ) -> Result<Self, DecodeError>

where R: Read,

Decode an object with a well-defined format.

fn consensus_decode_hex( hex: &str, modules: &ModuleRegistry<Decoder, DecodingMode>, ) -> Result<Self, DecodeError>

Decode an object from hex

fn consensus_decode_vec( bytes: Vec<u8>, modules: &ModuleRegistry<Decoder, DecodingMode>, ) -> Result<Self, DecodeError>

impl Encodable for UnordedEventLogId

fn consensus_encode<W: Write>(&self, writer: &mut W) -> Result<usize, Error>

Encode an object with a well-defined format. Returns the number of bytes written on success.

fn consensus_encode_to_vec(&self) -> Vec<u8>

Self::consensus_encode to newly allocated Vec<u8>

fn consensus_encode_to_hex(&self) -> String

Encode and convert to hex string representation

fn consensus_encode_to_len(&self) -> usize

Encode without storing the encoding, return the size

fn consensus_hash<H>(&self) -> H

where H: Hash, <H as Hash>::Engine: Write,

Generate a SHA256 hash of the consensus encoding using the default hash engine for H.