Enum QoS 

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

MQTT Quality of Service levels

Defines delivery guarantees for MQTT messages:

• AtMostOnce (0): Best effort delivery, no guarantees
• AtLeastOnce (1): Message delivered at least once, duplicates possible
• ExactlyOnce (2): Message delivered exactly once, highest guarantee

Variants

AtMostOnce = 0

QoS 0: At most once delivery (fire and forget)

AtLeastOnce = 1

QoS 1: At least once delivery (acknowledged delivery)

ExactlyOnce = 2

QoS 2: Exactly once delivery (assured delivery)

Implementations

impl QoS

pub fn to_rumqttc(self) -> QoS

Convert to rumqttc QoS type

Example

let qos = QoS::AtLeastOnce;
let rumqttc_qos = qos.to_rumqttc();

pub fn to_ntex_mqtt(self) -> QoS

Convert to ntex-mqtt QoS type

Example

let qos = QoS::AtLeastOnce;
let ntex_qos = qos.to_ntex_mqtt();

Trait Implementations

impl Clone for QoS

fn clone(&self) -> QoS

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QoS

impl Debug for QoS

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

Formats the value using the given formatter.

impl Display for QoS

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

Formats the value using the given formatter.

impl Eq for QoS

impl From<QoS> for QoS

Available on crate feature rumqttc only.

fn from(qos: QoS) -> Self

Converts to this type from the input type.

impl From<QoS> for QoS

Available on crate feature ntex-mqtt only.

fn from(qos: QoS) -> Self

Converts to this type from the input type.

impl Hash for QoS

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 QoS

fn cmp(&self, other: &QoS) -> 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 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 StructuralPartialEq for QoS