Struct Lsn 

pub struct Lsn {
    pub wall_ms: u64,
    pub counter: u32,
}

Log sequence number returned by atomic_write.

Backends derive this from the HLC issued at commit time. Higher Lsn = later write. Lsns are totally ordered by (wall_ms, counter).

Fields

wall_ms: u64

counter: u32

Implementations

impl Lsn

pub const ZERO: Lsn

pub fn from_hlc(h: Hlc) -> Lsn

Trait Implementations

impl Clone for Lsn

fn clone(&self) -> Lsn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Lsn

impl Debug for Lsn

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Lsn

fn deserialize<__D>( __deserializer: __D, ) -> Result<Lsn, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Lsn

Plan 08-02 additive: Display lets the PyO3 / napi-rs bindings emit Lsn::to_string() as the FFI-crossing shape for ingest() -> Lsn and snapshot() -> Lsn. The format is "{wall_ms}:{counter}" — stable, total-order-preserving under lexicographic compare IFF wall_ms/counter are zero-padded to fixed widths; we deliberately do NOT zero-pad because callers that need ordering compare the numeric fields directly (Lsn derives PartialOrd + Ord). The string form is intended for opaque display / serialisation only.

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

Formats the value using the given formatter.

impl Eq for Lsn

impl Ord for Lsn

fn cmp(&self, other: &Lsn) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Lsn

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Lsn

fn partial_cmp(&self, other: &Lsn) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Lsn

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Lsn