Enum QoS

#[repr(u8)]
pub enum QoS {
    AtMostOnce = 0,
    AtLeastOnce = 1,
    ExactlyOnce = 2,
}

The quality-of-service for an MQTT message.

Variants

AtMostOnce = 0

A packet will be delivered at most once, but may not be delivered at all.

AtLeastOnce = 1

A packet will be delivered at least one time, but possibly more than once.

ExactlyOnce = 2

A packet will be delivered exactly one time.

Trait Implementations

impl Clone for QoS

fn clone(&self) -> QoS

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for QoS

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

Formats the value using the given formatter.

impl PartialEq for QoS

fn eq(&self, other: &QoS) -> 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 PartialOrd for QoS

fn partial_cmp(&self, other: &QoS) -> 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 TryFrom<u8> for QoS

type Error = TryFromPrimitiveError<QoS>

The type returned in the event of a conversion error.

fn try_from(number: u8) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for QoS

const NAME: &'static str = "QoS"

type Primitive = u8

type Error = TryFromPrimitiveError<QoS>

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for QoS

impl StructuralPartialEq for QoS