Struct Config 

pub struct Config {
    pub id: Option<String>,
    pub router_channel: Option<String>,
    pub request_ttl: Duration,
    pub event_ttl: Duration,
    pub max_in_flight_per_channel: usize,
}

Configuration for a CommandRegistry.

Fields

id: Option<String>

Registry identifier used in log messages. Defaults to a random UUID.

router_channel: Option<String>

Channel id to escalate unknown commands and new registrations to. Leave None for a root registry.

request_ttl: Duration

How long a pending execute / register reply can wait before being rejected with CommandError::Timeout. Zero disables the TTL check (request hangs until the channel closes).

event_ttl: Duration

How long a seen event id is remembered for dedup purposes.

max_in_flight_per_channel: usize

Maximum number of handler futures that may be in flight concurrently on a single channel’s pump. Once this cap is reached, the pump stops pulling new messages off the channel (applying upstream backpressure) until an in-flight handler finishes. 0 disables the cap.

Optional in practice — Config::default() sets this to 256, so callers using ..Default::default() never need to supply it. It is only syntactically required when you build Config { … } field-by-field (Rust struct literals must list every field). The cap exists so a misbehaving peer can’t cause unbounded handler-future buildup; the default is fine for almost every workload.

Trait Implementations

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.