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FanoutManager

laminar_connectors::websocket::fanout

Struct FanoutManager 

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pub struct FanoutManager { /* private fields */ }
Expand description

Fan-out manager that distributes messages to connected WebSocket clients.

Each client gets an independent bounded channel. The fan-out loop serializes once, then attempts to send to every client. If a client’s channel is full, the configured SlowClientPolicy is applied.

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impl FanoutManager

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pub fn new( policy: SlowClientPolicy, buffer_capacity: usize, replay_buffer_size: Option<usize>, ) -> Self

Creates a new fan-out manager.

§Arguments
  • policy - Slow client eviction policy.
  • buffer_capacity - Max queued messages per client.
  • replay_buffer_size - If Some, enables a replay buffer of this size.
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pub fn add_client( &self, subscription_id: String, filter: Option<String>, format: Option<SinkFormat>, ) -> (ClientId, RingReceiver<Bytes>)

Registers a new client and returns its ID and receive channel.

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pub fn remove_client(&self, id: ClientId) -> bool

Removes a client by ID, returning whether it existed.

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pub fn client_count(&self) -> usize

Returns the number of connected clients.

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pub fn current_sequence(&self) -> u64

Returns the current global sequence number.

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pub fn clients(&self) -> Arc<RwLock<HashMap<ClientId, ClientState>>> ⓘ

Returns a clone of the clients map handle for external use.

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pub fn broadcast(&self, data: Bytes) -> BroadcastResult

Broadcasts serialized data to all connected clients.

Applies the slow client policy for clients that can’t keep up. Returns the number of clients that received the message successfully.

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pub fn replay_from(&self, from_sequence: u64) -> Vec<(u64, Bytes)>

Returns replay messages for a client resuming from a given sequence.

Trait Implementations§

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impl Debug for FanoutManager

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

Formats the value using the given formatter. Read more

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