Struct WalPos 

pub struct WalPos {
    pub checkpoint_seq: u32,
    pub frame: u64,
}

WAL position (checkpoint_seq, frame). Ordered lexicographically for physical reachability.

Fields

checkpoint_seq: u32

frame: u64

Implementations

impl WalPos

pub const ORIGIN: WalPos

In the durable base from the very beginning — reachable by every reader.

pub const STAGED: WalPos

Staged / not-yet-committed sentinel: greater than any real reader’s mark, so unreachable.

pub fn from_pair((checkpoint_seq, frame): (u32, u64)) -> Self

Trait Implementations

impl Clone for WalPos

fn clone(&self) -> WalPos

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WalPos

impl Debug for WalPos

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

Formats the value using the given formatter.

impl Eq for WalPos

impl Ord for WalPos

fn cmp(&self, other: &WalPos) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for WalPos

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for WalPos

fn partial_cmp(&self, other: &WalPos) -> 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 StructuralPartialEq for WalPos