Struct OutboxEntry 

pub struct OutboxEntry<'a> {
    pub qos: QoS,
    pub topic: &'a Topic,
    pub payload: &'a [u8],
    pub retain: bool,
    pub properties: &'a PublishProperties,
    pub was_sent: bool,
}

A stored outgoing publish awaiting acknowledgement.

Used for QoS 1 entries (awaiting PUBACK) and QoS 2 entries in the first phase (awaiting PUBREC). Both have the same storage schema; the qos field distinguishes them so the I/O driver can reconstruct the correct packet type on retransmission.

Fields

qos: QoS

Quality of Service: QoS::AtLeastOnce or QoS::ExactlyOnce.

topic: &'a Topic

Topic name.

payload: &'a [u8]

Message payload.

retain: bool

Retain flag.

properties: &'a PublishProperties

Original publish properties.

was_sent: bool

true if this entry has previously been put on the wire.

The I/O driver sets the MQTT DUP flag (§3.3.1.1) when this is true. An entry becomes sent when the drain_outbox visitor returns DrainAction::Sent after a successful write.

Trait Implementations

impl<'a> Clone for OutboxEntry<'a>

fn clone(&self) -> OutboxEntry<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for OutboxEntry<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for OutboxEntry<'a>

fn eq(&self, other: &OutboxEntry<'a>) -> 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<'a> Copy for OutboxEntry<'a>

impl<'a> Eq for OutboxEntry<'a>

impl<'a> StructuralPartialEq for OutboxEntry<'a>