Trait CurrentThreadTaskDriver 

pub trait CurrentThreadTaskDriver:
    Send
    + Sync
    + 'static {
    // Required method
    fn dispatch(&self, delivery: CurrentThreadTaskDelivery) -> bool;

    // Provided methods
    fn is_live(&self) -> bool { ... }
    fn on_swept(&self) { ... }
}

Host-turn dispatcher for the CurrentThread runnable queue.

The NAPI binding registers one weak native threadsafe-function driver per importing environment. Its custom Node-API callback owns the fresh host turn and keeps delivery capabilities out of JavaScript. Scheduling through a fresh host turn is required for soundness: arbitrary futures may invoke their waker while holding internal locks, so polling the runnable inline from that wake can self-deadlock.

Required Methods

fn dispatch(&self, delivery: CurrentThreadTaskDelivery) -> bool

Queue one host turn that will call drive_current_thread_tasks with CurrentThreadTaskDelivery::capability.

The delivery capability is scoped to this exact host registration and attempt. The registry maps it back to the executor’s one internal dispatch capability only while this attempt remains current. false means this driver can no longer dispatch and must be swept. After returning true, the driver must eventually call either acknowledge_current_thread_task_delivery or fail_current_thread_task_delivery with this exact value. A successful acknowledgement is accepted only after drive_current_thread_tasks claimed this exact delivery.

Provided Methods

fn is_live(&self) -> bool

fn on_swept(&self)

Called after this driver has been removed from the registry, with no registry lock held. Must be idempotent with explicit host cleanup.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors