-import { DynamicThreadPool, PoolOptions } from 'poolifier';
+import { DynamicThreadPool } from 'poolifier';
-import Constants from '../utils/Constants';
+import type { WorkerData, WorkerOptions } from '../types/Worker';
import Utils from '../utils/Utils';
-import { Worker } from 'worker_threads';
import WorkerAbstract from './WorkerAbstract';
-import { WorkerData } from '../types/Worker';
+import { WorkerUtils } from './WorkerUtils';
-export default class WorkerDynamicPool<T> extends WorkerAbstract {
- private pool: DynamicPool;
+export default class WorkerDynamicPool extends WorkerAbstract<WorkerData> {
+ private readonly pool: DynamicThreadPool<WorkerData>;
/**
* Create a new `WorkerDynamicPool`.
*
- * @param {string} workerScript
+ * @param workerScript
+ * @param workerOptions
*/
- constructor(workerScript: string, min: number, max: number,) {
- super(workerScript);
- this.pool = DynamicPool.getInstance(min, max, this.workerScript);
+ constructor(workerScript: string, workerOptions?: WorkerOptions) {
+ super(workerScript, workerOptions);
+ this.workerOptions.poolOptions.exitHandler =
+ this.workerOptions?.poolOptions?.exitHandler ?? WorkerUtils.defaultExitHandler;
+ this.pool = new DynamicThreadPool<WorkerData>(
+ this.workerOptions.poolMinSize,
+ this.workerOptions.poolMaxSize,
+ this.workerScript,
+ this.workerOptions.poolOptions
+ );
}
get size(): number {
return this.pool.workers.length;
}
- get maxElementsPerWorker(): number {
- return 1;
+ get maxElementsPerWorker(): number | null {
+ return null;
}
/**
*
- * @return {Promise<void>}
+ * @returns
* @public
*/
- // eslint-disable-next-line @typescript-eslint/no-empty-function
- public async start(): Promise<void> { }
+ public async start(): Promise<void> {
+ // This is intentional
+ }
/**
*
- * @return {Promise<void>}
+ * @returns
* @public
*/
- // eslint-disable-next-line @typescript-eslint/require-await
public async stop(): Promise<void> {
return this.pool.destroy();
}
/**
*
- * @return {Promise<void>}
+ * @param elementData
+ * @returns
* @public
*/
- public async addElement(elementData: T): Promise<void> {
+ public async addElement(elementData: WorkerData): Promise<void> {
await this.pool.execute(elementData);
- // Start worker sequentially to optimize memory at startup
- await Utils.sleep(Constants.START_WORKER_DELAY);
- }
-}
-
-class DynamicPool extends DynamicThreadPool<WorkerData> {
- private static instance: DynamicPool;
-
- private constructor(min: number, max: number, workerScript: string, opts?: PoolOptions<Worker>) {
- super(min, max, workerScript, opts);
- }
-
- public static getInstance(min: number, max: number, workerScript: string): DynamicPool {
- if (!DynamicPool.instance) {
- DynamicPool.instance = new DynamicPool(min, max, workerScript,
- {
- exitHandler: (code) => {
- if (code !== 0) {
- console.error(`Worker stopped with exit code ${code}`);
- }
- }
- }
- );
- }
- return DynamicPool.instance;
+ // Start element sequentially to optimize memory at startup
+ this.workerOptions.elementStartDelay > 0 &&
+ (await Utils.sleep(this.workerOptions.elementStartDelay));
}
}