@minimaltech/node-infra/dist/helpers/worker-thread/types.d.ts

Minimal Technology NodeJS Infrastructure - Loopback 4 Framework

import { AnyType, ValueOrPromise } from '../../common/types';
import { MessagePort, Transferable } from 'node:worker_threads';
export interface IWorkerThread {
    buses: {
        [workerKey: string | symbol]: IWorkerBus<AnyType, AnyType>;
    };
}
export interface IWorkerMessageBusHandler<IConsumePayload> {
    onMessage: (opts: {
        message: IConsumePayload;
    }) => ValueOrPromise<void>;
    onClose: () => ValueOrPromise<void>;
    onError: (opts: {
        error: Error;
    }) => ValueOrPromise<void>;
    onExit: (opts: {
        exitCode: number | string;
    }) => ValueOrPromise<void>;
}
export interface IWorkerBus<IConsumePayload, IPublishPayload> {
    port: MessagePort;
    handler: IWorkerMessageBusHandler<IConsumePayload>;
    onBeforePostMessage?(opts: {
        message: IPublishPayload;
    }): ValueOrPromise<void>;
    onAfterPostMessage?(opts: {
        message: IPublishPayload;
    }): ValueOrPromise<void>;
    postMessage(opts: {
        message: IPublishPayload;
        transferList: readonly Transferable[] | undefined;
    }): ValueOrPromise<void>;
}