ReferenceAPIsRust Library Referencenemo-relayapisubscriber

Function scope_register_subscriber

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Generated from cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-ffi.

pub fn scope_register_subscriber(
    scope_uuid: &Uuid,
    name: &str,
    callback: EventSubscriberFn,
) -> Result<()>

Register a scope-local lifecycle event subscriber.

The subscriber remains active only while the target scope is still present on the active scope stack.

Parameters

  • scope_uuid: UUID of the owning scope.
  • name: Unique subscriber name within the owning scope.
  • callback: Subscriber callback invoked for events emitted under that scope hierarchy.

Returns

A Result that is Ok(()) when the subscriber was registered.

Errors

Returns FlowError::NotFound when the scope does not exist on the active stack and FlowError::AlreadyExists when the scope already owns a subscriber with the same name.

Notes

Scope-local subscribers are removed automatically when the owning scope is popped. Native event-producing APIs enqueue subscriber work and return without waiting for callbacks.