X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fcluster%2Fdynamic.ts;h=513a73c5d7804cfa2e109a5d9cf6c01f4c060945;hb=4f3c3d894171421375559b43ce469bd5ccb475da;hp=aa883bfa194afd50f3b68ffaee40dbbd5096ca1b;hpb=cefac5ba30860fee4cc7feab628d54bdb7601e08;p=poolifier.git diff --git a/src/pools/cluster/dynamic.ts b/src/pools/cluster/dynamic.ts index aa883bfa..513a73c5 100644 --- a/src/pools/cluster/dynamic.ts +++ b/src/pools/cluster/dynamic.ts @@ -1,6 +1,5 @@ -import type { Worker } from 'cluster' -import type { JSONValue } from '../../utility-types' -import { isKillBehavior, KillBehaviors } from '../../worker/worker-options' +import { EMPTY_OBJECT_LITERAL } from '../../utils' +import { PoolType } from '../pool-internal' import type { ClusterPoolOptions } from './fixed' import { FixedClusterPool } from './fixed' @@ -10,67 +9,39 @@ import { FixedClusterPool } from './fixed' * This cluster pool creates new workers when the others are busy, up to the maximum number of workers. * When the maximum number of workers is reached, an event is emitted. If you want to listen to this event, use the pool's `emitter`. * - * @template Data Type of data sent to the worker. - * @template Response Type of response of execution. - * + * @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. * @author [Christopher Quadflieg](https://github.com/Shinigami92) * @since 2.0.0 */ export class DynamicClusterPool< - Data extends JSONValue = JSONValue, - Response extends JSONValue = JSONValue + Data = unknown, + Response = unknown > extends FixedClusterPool { /** * Constructs a new poolifier dynamic cluster pool. * - * @param min Minimum number of workers which are always active. - * @param max Maximum number of workers that can be created by this pool. - * @param filename Path to an implementation of a `ClusterWorker` file, which can be relative or absolute. - * @param opts Options for this fixed cluster pool. Default: `{ maxTasks: 1000 }` + * @param min - Minimum number of workers which are always active. + * @param max - Maximum number of workers that can be created by this pool. + * @param filePath - Path to an implementation of a `ClusterWorker` file, which can be relative or absolute. + * @param opts - Options for this dynamic cluster pool. */ public constructor ( min: number, - public readonly max: number, - filename: string, - opts: ClusterPoolOptions = { maxTasks: 1000 } + protected readonly max: number, + filePath: string, + opts: ClusterPoolOptions = EMPTY_OBJECT_LITERAL ) { - super(min, filename, opts) + super(min, filePath, opts) } - /** - * Choose a worker for the next task. - * - * It will first check for and return an idle worker. - * If all workers are busy, then it will try to create a new one up to the `max` worker count. - * If the max worker count is reached, the emitter will emit a `FullPool` event and it will fall back to using a round robin algorithm to distribute the load. - * - * @returns Cluster worker. - */ - protected chooseWorker (): Worker { - for (const [worker, numberOfTasks] of this.tasks) { - if (numberOfTasks === 0) { - // A worker is free, use it - return worker - } - } - - if (this.workers.length === this.max) { - this.emitter.emit('FullPool') - return super.chooseWorker() - } + /** {@inheritDoc} */ + public get type (): PoolType { + return PoolType.DYNAMIC + } - // All workers are busy, create a new worker - const workerCreated = this.createAndSetupWorker() - this.registerWorkerMessageListener(workerCreated, message => { - const tasksInProgress = this.tasks.get(workerCreated) - if ( - isKillBehavior(KillBehaviors.HARD, message.kill) || - tasksInProgress === 0 - ) { - // Kill received from the worker, means that no new tasks are submitted to that worker for a while ( > maxInactiveTime) - void this.destroyWorker(workerCreated) - } - }) - return workerCreated + /** {@inheritDoc} */ + public get busy (): boolean { + return this.workers.length === this.max } }