Struct PNCounter 

pub struct PNCounter { /* private fields */ }

A positive-negative counter CRDT that supports both increment and decrement.

Internally composed of two GCounters: one for increments, one for decrements.

Implementations

impl PNCounter

pub fn new() -> Self

Create a new, zeroed PNCounter.

pub fn increment(&mut self, node: impl Into<String>, amount: u64)

Increment by amount for node.

pub fn decrement(&mut self, node: impl Into<String>, amount: u64)

Decrement by amount for node.

pub fn value(&self) -> i64

Return the net value (increments − decrements).

pub fn merge(&self, other: &PNCounter) -> PNCounter

Merge with another PNCounter.

Trait Implementations

impl Clone for PNCounter

fn clone(&self) -> PNCounter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PNCounter

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

Formats the value using the given formatter.

impl Default for PNCounter

fn default() -> PNCounter

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PNCounter

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PNCounter

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for PNCounter

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PNCounter

impl StructuralPartialEq for PNCounter