X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fpools%2Fpool.ts;h=9d18ed70c7cd0d8204c510cfb52f5a774fe831be;hb=ff733df7ebd4813628b27a5d27d509163e12af84;hp=6f677da8ba64d695e5b4b82f904f4b21ef1c7208;hpb=675bb8097982bce5bbe64e6332340373aa4aed3f;p=poolifier.git diff --git a/src/pools/pool.ts b/src/pools/pool.ts index 6f677da8..9d18ed70 100644 --- a/src/pools/pool.ts +++ b/src/pools/pool.ts @@ -1,11 +1,30 @@ +import EventEmitter from 'node:events' import type { ErrorHandler, ExitHandler, MessageHandler, OnlineHandler -} from './pool-worker' +} from './worker' import type { WorkerChoiceStrategy } from './selection-strategies/selection-strategies-types' +/** + * Pool events emitter. + */ +export class PoolEmitter extends EventEmitter {} + +/** + * Enumeration of pool events. + */ +export const PoolEvents = Object.freeze({ + full: 'full', + busy: 'busy' +} as const) + +/** + * Pool event. + */ +export type PoolEvent = keyof typeof PoolEvents + /** * Options for a poolifier pool. */ @@ -27,39 +46,55 @@ export interface PoolOptions { */ exitHandler?: ExitHandler /** - * The work choice strategy to use in this pool. + * The worker choice strategy to use in this pool. */ workerChoiceStrategy?: WorkerChoiceStrategy /** * Pool events emission. * - * @default true + * @defaultValue true */ enableEvents?: boolean + /** + * Pool worker tasks queue. + * + * @experimental + * @defaultValue false + */ + enableTasksQueue?: boolean } /** * Contract definition for a poolifier pool. * - * @template Data Type of data sent to the worker. This can only be serializable data. - * @template Response Type of response of execution. This can only be serializable data. + * @typeParam Data - Type of data sent to the worker. This can only be serializable data. + * @typeParam Response - Type of response of execution. This can only be serializable data. */ export interface IPool { /** - * Perform the task specified in the constructor with the data parameter. + * Emitter on which events can be listened to. + * + * Events that can currently be listened to: + * + * - `'full'`: Emitted when the pool is dynamic and full. + * - `'busy'`: Emitted when the pool is busy. + */ + readonly emitter?: PoolEmitter + /** + * Performs the task specified in the constructor with the data parameter. * - * @param data The input for the specified task. This can only be serializable data. + * @param data - The input for the specified task. This can only be serializable data. * @returns Promise that will be resolved when the task is successfully completed. */ - execute(data: Data): Promise + execute: (data: Data) => Promise /** * Shutdowns every current worker in this pool. */ - destroy(): Promise + destroy: () => Promise /** - * Set the worker choice strategy in this pool. + * Sets the worker choice strategy in this pool. * - * @param workerChoiceStrategy The worker choice strategy. + * @param workerChoiceStrategy - The worker choice strategy. */ - setWorkerChoiceStrategy(workerChoiceStrategy: WorkerChoiceStrategy): void + setWorkerChoiceStrategy: (workerChoiceStrategy: WorkerChoiceStrategy) => void }