Struct mz_storage_client::controller::PersistEpoch

pub struct PersistEpoch(Option<NonZeroI64>);

A wrapper struct that presents the adapter token to a format that is understandable by persist and also allows us to differentiate between a token being present versus being set for the first time.

Tuple Fields

0: Option<NonZeroI64>

Trait Implementations

impl Clone for PersistEpoch

fn clone(&self) -> PersistEpoch

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Codec64 for PersistEpoch

fn codec_name() -> String

Name of the codec.

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

Encode a timestamp or diff for permanent storage.

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

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

impl Debug for PersistEpoch

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

Formats the value using the given formatter.

impl From<NonZeroI64> for PersistEpoch

fn from(epoch: NonZeroI64) -> Self

Converts to this type from the input type.

impl Opaque for PersistEpoch

fn initial() -> Self

The value of the opaque token when no compare_and_downgrade_since calls have yet been successful.

impl PartialEq<PersistEpoch> for PersistEpoch

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for PersistEpoch