Struct PresenceUpdateMsg 

pub struct PresenceUpdateMsg {
    pub channel: String,
    pub state: Vec<u8>,
}

Presence update message (client → server, 0x80).

Sends ephemeral user state to a channel. The server broadcasts the state to all other subscribers of the same channel. Presence is NOT persisted, NOT CRDT-merged — it is fire-and-forget with latest-state-wins semantics.

Sending a PresenceUpdate implicitly subscribes the sender to the channel (if not already subscribed).

Fields

channel: String

Channel scoping key (e.g., "doc:doc-123", "workspace:ws-acme").

state: Vec<u8>

Opaque user state (MessagePack-encoded application-defined payload). Common fields: user_id, user_name, cursor_position, selection_range, active_document_id, color, avatar_url.

Trait Implementations

impl Clone for PresenceUpdateMsg

fn clone(&self) -> PresenceUpdateMsg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PresenceUpdateMsg

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PresenceUpdateMsg

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'__msgpack_de> FromMessagePack<'__msgpack_de> for PresenceUpdateMsg

fn read<R: Read<'__msgpack_de>>(reader: &mut R) -> Result<Self, Error>

where Self: Sized,

Reads the MessagePack representation of this value from the provided reader.

impl Serialize for PresenceUpdateMsg

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToMessagePack for PresenceUpdateMsg

fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error>

Writes the MessagePack representation of this value into the provided writer.