import { WorkerEvents, WorkerSetElement } from '../types/Worker';
-import Constants from '../utils/Constants';
import Utils from '../utils/Utils';
import { Worker } from 'worker_threads';
import WorkerAbstract from './WorkerAbstract';
+import { WorkerUtils } from './WorkerUtils';
export default class WorkerSet<T> extends WorkerAbstract {
public maxElementsPerWorker: number;
*
* @param {string} workerScript
* @param {number} maxElementsPerWorker
+ * @param {number} workerStartDelay
*/
- constructor(workerScript: string, maxElementsPerWorker = 1) {
- super(workerScript);
+ constructor(workerScript: string, maxElementsPerWorker = 1, workerStartDelay?: number) {
+ super(workerScript, workerStartDelay);
this.workerSet = new Set<WorkerSetElement>();
this.maxElementsPerWorker = maxElementsPerWorker;
}
/**
*
- * @param elementData
+ * @param {T} elementData
* @returns {Promise<void>}
* @public
*/
public async addElement(elementData: T): Promise<void> {
if (!this.workerSet) {
- throw Error('Cannot add a WorkerSet element: workers\' set does not exist');
+ throw new Error('Cannot add a WorkerSet element: workers\' set does not exist');
}
if (this.getLastWorkerSetElement().numberOfWorkerElements >= this.maxElementsPerWorker) {
this.startWorker();
// Start worker sequentially to optimize memory at startup
- await Utils.sleep(Constants.START_WORKER_DELAY);
+ await Utils.sleep(this.workerStartDelay);
}
this.getLastWorker().postMessage({ id: WorkerEvents.START_WORKER_ELEMENT, workerData: elementData });
this.getLastWorkerSetElement().numberOfWorkerElements++;
public async start(): Promise<void> {
this.startWorker();
// Start worker sequentially to optimize memory at startup
- await Utils.sleep(Constants.START_WORKER_DELAY);
+ await Utils.sleep(this.workerStartDelay);
}
/**
worker.on('message', () => { });
worker.on('error', () => { });
worker.on('exit', (code) => {
- if (code !== 0) {
- console.error(`Worker stopped with exit code ${code}`);
- }
+ WorkerUtils.defaultExitHandler(code);
this.workerSet.delete(this.getWorkerSetElementByWorker(worker));
});
this.workerSet.add({ worker, numberOfWorkerElements: 0 });
private getWorkerSetElementByWorker(worker: Worker): WorkerSetElement {
let workerSetElt: WorkerSetElement;
this.workerSet.forEach((workerSetElement) => {
- if (JSON.stringify(workerSetElement.worker) === JSON.stringify(worker)) {
+ if (workerSetElement.worker.threadId === worker.threadId) {
workerSetElt = workerSetElement;
}
});