Enum QualityOfService 

pub enum QualityOfService {
    AtMostOnce,
    AtLeastOnce,
    ExactlyOnce,
}

The delivery guarantee applied to published and subscribed messages.

These map one-to-one onto the MQTT protocol’s quality-of-service levels.

Variants

AtMostOnce

Fire and forget: the broker does not acknowledge delivery.

AtLeastOnce

The message is delivered at least once and acknowledged.

ExactlyOnce

The message is delivered exactly once via a four-step handshake.

Trait Implementations

impl Clone for QualityOfService

fn clone(&self) -> QualityOfService

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QualityOfService

impl Debug for QualityOfService

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

Formats the value using the given formatter.

impl Eq for QualityOfService

impl From<QualityOfService> for QoS

fn from(value: QualityOfService) -> Self

Converts to this type from the input type.

impl PartialEq for QualityOfService

fn eq(&self, other: &QualityOfService) -> 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 StructuralPartialEq for QualityOfService