X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fcluster%2Ffixed.ts;h=09c5e369a5459d0858559a29eef8e9fc3a563c66;hb=refs%2Ftags%2Fv2.3.1;hp=65f6ce54c738e1b857a7c1d49f68811ca57f5697;hpb=f2fdaa86fd9e6f3a5dc0b3146c065e3a7bfb44e0;p=poolifier.git diff --git a/src/pools/cluster/fixed.ts b/src/pools/cluster/fixed.ts index 65f6ce54..09c5e369 100644 --- a/src/pools/cluster/fixed.ts +++ b/src/pools/cluster/fixed.ts @@ -1,8 +1,13 @@ -import { fork, isMaster, setupMaster, Worker } from 'cluster' -import type { JSONValue, MessageValue } from '../../utility-types' -import type { PoolOptions } from '../abstract-pool' +import type { Worker } from 'cluster' +import cluster from 'cluster' +import type { MessageValue } from '../../utility-types' import { AbstractPool } from '../abstract-pool' +import type { PoolOptions } from '../pool' +import { PoolType } from '../pool-internal' +/** + * Options for a poolifier cluster pool. + */ export interface ClusterPoolOptions extends PoolOptions { /** * Key/value pairs to add to worker process environment. @@ -14,70 +19,85 @@ export interface ClusterPoolOptions extends PoolOptions { } /** - * A cluster pool with a static number of workers, is possible to execute tasks in sync or async mode as you prefer. + * A cluster pool with a fixed number of workers. * - * This pool will select the worker in a round robin fashion. + * It is possible to perform tasks in sync or asynchronous mode as you prefer. * + * This pool selects the workers in a round robin fashion. + * + * @template DataType of data sent to the worker. This can only be serializable data. + * @template ResponseType of response of execution. This can only be serializable data. * @author [Christopher Quadflieg](https://github.com/Shinigami92) * @since 2.0.0 */ export class FixedClusterPool< - Data extends JSONValue = JSONValue, - Response extends JSONValue = JSONValue + Data = unknown, + Response = unknown > extends AbstractPool { /** - * @param numWorkers Number of workers for this pool. - * @param filePath A file path with implementation of `ClusterWorker` class, relative path is fine. - * @param opts An object with possible options for example `errorHandler`, `onlineHandler`. Default: `{ maxTasks: 1000 }` + * Constructs a new poolifier fixed cluster pool. + * + * @param numberOfWorkers Number of workers for this pool. + * @param filePath Path to an implementation of a `ClusterWorker` file, which can be relative or absolute. + * @param [opts={}] Options for this fixed cluster pool. */ public constructor ( - numWorkers: number, + numberOfWorkers: number, filePath: string, - public readonly opts: ClusterPoolOptions = { maxTasks: 1000 } + public readonly opts: ClusterPoolOptions = {} ) { - super(numWorkers, filePath, opts) + super(numberOfWorkers, filePath, opts) } + /** @inheritDoc */ protected setupHook (): void { - setupMaster({ + cluster.setupPrimary({ exec: this.filePath }) } + /** @inheritDoc */ protected isMain (): boolean { - return isMaster + return cluster.isPrimary } - protected destroyWorker (worker: Worker): void { + /** @inheritDoc */ + public destroyWorker (worker: Worker): void { + this.sendToWorker(worker, { kill: 1 }) worker.kill() - // FIXME: The tests are currently failing, so these must be changed first } + /** @inheritDoc */ protected sendToWorker (worker: Worker, message: MessageValue): void { worker.send(message) } - protected registerWorkerMessageListener ( - port: Worker, - listener: (message: MessageValue) => void + /** @inheritDoc */ + public registerWorkerMessageListener ( + worker: Worker, + listener: (message: MessageValue) => void ): void { - port.on('message', listener) + worker.on('message', listener) } - protected unregisterWorkerMessageListener ( - port: Worker, - listener: (message: MessageValue) => void - ): void { - port.removeListener('message', listener) + /** @inheritDoc */ + protected createWorker (): Worker { + return cluster.fork(this.opts.env) + } + + /** @inheritDoc */ + protected afterWorkerSetup (worker: Worker): void { + // Listen worker messages. + this.registerWorkerMessageListener(worker, super.workerListener()) } - protected newWorker (): Worker { - return fork(this.opts.env) + /** @inheritDoc */ + public get type (): PoolType { + return PoolType.FIXED } - protected afterNewWorkerPushed (worker: Worker): void { - // we will attach a listener for every task, - // when task is completed the listener will be removed but to avoid warnings we are increasing the max listeners size - worker.setMaxListeners(this.opts.maxTasks ?? 1000) + /** @inheritDoc */ + public get busy (): boolean { + return this.internalGetBusyStatus() } }