Trait mz_persist_types::Codec64

pub trait Codec64: Sized + 'static {
    fn codec_name() -> String;
    fn encode(&self) -> [u8; 8];
    fn decode(buf: [u8; 8]) -> Self;
}

Encoding and decoding operations for a type usable as a persisted timestamp or diff.

Required Methods

fn codec_name() -> String

Name of the codec.

This name is stored for the timestamp and diff when a stream is first created and the same timestamp and diff codec must be used for that stream afterward.

fn encode(&self) -> [u8; 8]

Encode a timestamp or diff for permanent storage.

This must perfectly round-trip Self through Codec64::decode. If the encode function for this codec ever changes, decode must be able to handle bytes output by all previous versions of encode.

fn decode(buf: [u8; 8]) -> Self

Decode a timestamp or diff previous encoded with this codec’s Codec64::encode.

This must perfectly round-trip Self through Codec64::encode. If the encode function for this codec ever changes, decode must be able to handle bytes output by all previous versions of encode.

Implementations on Foreign Types

impl Codec64 for i64

fn codec_name() -> String

fn encode(&self) -> [u8; 8]

fn decode(buf: [u8; 8]) -> Self

impl Codec64 for u64

fn codec_name() -> String

fn encode(&self) -> [u8; 8]

fn decode(buf: [u8; 8]) -> Self

Implementors