Struct Position 

pub struct Position(/* private fields */);

Implementations

impl Position

pub const ZERO: Position

pub const MAX: Position

The largest representable position, the dual of ZERO. Used as the “from the tip” sentinel for a backwards read: read_back(query, Position::MAX, limit) starts at the current durable tip, since the read is always clamped to the pinned watermark anyway.

pub fn new(n: u64) -> Self

pub fn get(self) -> u64

pub fn next(self) -> Position

pub fn offset_from(self, base: Position) -> u64

Trait Implementations

impl Add for Position

type Output = u64

The resulting type after applying the + operator.

fn add(self, rhs: Position) -> Self::Output

Performs the + operation.

impl Add<Position> for u64

type Output = u64

The resulting type after applying the + operator.

fn add(self, rhs: Position) -> Self::Output

Performs the + operation.

impl Add<u64> for Position

type Output = u64

The resulting type after applying the + operator.

fn add(self, rhs: u64) -> Self::Output

Performs the + operation.

impl Clone for Position

fn clone(&self) -> Position

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Position

impl Debug for Position

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

Formats the value using the given formatter.

impl Display for Position

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

Formats the value using the given formatter.

impl Eq for Position

impl From<u64> for Position

fn from(n: u64) -> Self

Converts to this type from the input type.

impl Hash for Position

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Position

fn cmp(&self, other: &Position) -> 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 Position

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Position

fn partial_cmp(&self, other: &Position) -> 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 Position

impl Sub for Position

type Output = u64

The resulting type after applying the - operator.

fn sub(self, rhs: Position) -> Self::Output

Performs the - operation.

impl Sub<Position> for u64

type Output = u64

The resulting type after applying the - operator.

fn sub(self, rhs: Position) -> Self::Output

Performs the - operation.

impl Sub<u64> for Position

type Output = u64

The resulting type after applying the - operator.

fn sub(self, rhs: u64) -> Self::Output

Performs the - operation.