Module client 

Client state machine.

Client tracks connection lifecycle, server-negotiated limits, packet ID allocation, and QoS 1/2 flows. It consumes decoded packets and produces ClientEvents and Responses for the caller to send.

Modules

transmit 🔒

The outbound transmit path: encoding pending session state onto the wire.

Structs

Client

Sans-io MQTT v5 client state machine.

HandleOutcome

Result of processing an incoming packet.

OutgoingPublish

A QoS > 0 publish handed to the drain_outbox callback to be put on the wire.

ServerCapabilities

Server capabilities extracted from CONNACK properties (§3.2.2.3).

Enums

AliasDecision

What to do with the topic alias for an outgoing PUBLISH (§3.3.2.3.4).

ClientError

Errors from the client state machine.

ClientEvent

Events produced by the client state machine for the application layer.

ConnectionState

Connection lifecycle phase.

Response

A response packet that the caller must encode and send to the server.

TransmitEvent

An outcome of Client::poll_transmit the caller must act on, reported per packet identifier so the driver can resolve the user-facing future.

Traits

TopicAliasTable

Per-connection outbound topic-alias assignment.

Functions

transmit_qos0

Encodes a QoS 0 (fire-and-forget) PUBLISH into out.