X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fworker%2Fthread-worker.ts;h=1070ed31d7822a86e6b2d4f96c5a9b7c7274b8dc;hb=deb85c12b77faf6974551cefcd9676e62a392086;hp=a6c9ec16b64760e8f4a79feeebef0339634ff660;hpb=f2fdaa86fd9e6f3a5dc0b3146c065e3a7bfb44e0;p=poolifier.git diff --git a/src/worker/thread-worker.ts b/src/worker/thread-worker.ts index a6c9ec16..1070ed31 100644 --- a/src/worker/thread-worker.ts +++ b/src/worker/thread-worker.ts @@ -1,52 +1,36 @@ +import type { MessagePort } from 'worker_threads' import { isMainThread, parentPort } from 'worker_threads' -import type { JSONValue, MessageValue } from '../utility-types' +import type { MessageValue } from '../utility-types' import { AbstractWorker } from './abstract-worker' import type { WorkerOptions } from './worker-options' /** - * An example worker that will be always alive, you just need to **extend** this class if you want a static pool. + * A thread worker used by a poolifier `ThreadPool`. * - * When this worker is inactive for more than 1 minute, it will send this info to the main thread, - * if you are using DynamicThreadPool, the workers created after will be killed, the min num of thread will be guaranteed. + * When this worker is inactive for more than the given `maxInactiveTime`, + * it will send a termination request to its main thread. + * + * If you use a `DynamicThreadPool` the extra workers that were created will be terminated, + * but the minimum number of workers will be guaranteed. + * + * @template Data Type of data this worker receives from pool's execution. This can only be serializable data. + * @template Response Type of response the worker sends back to the main thread. This can only be serializable data. * * @author [Alessandro Pio Ardizio](https://github.com/pioardi) * @since 0.0.1 */ export class ThreadWorker< - Data extends JSONValue = JSONValue, - Response extends JSONValue = JSONValue + Data = unknown, + Response = unknown > extends AbstractWorker { - protected parent?: MessagePort - + /** + * Constructs a new poolifier thread worker. + * + * @param fn Function processed by the worker when the pool's `execution` function is invoked. + * @param opts Options for the worker. + */ public constructor (fn: (data: Data) => Response, opts: WorkerOptions = {}) { - super('worker-thread-pool:pioardi', isMainThread, fn, opts) - - parentPort?.on('message', (value: MessageValue) => { - if (value?.data && value.id) { - // here you will receive messages - // console.log('This is the main worker ' + isMainThread) - if (this.async) { - this.runInAsyncScope(this.runAsync.bind(this), this, fn, value) - } else { - this.runInAsyncScope(this.run.bind(this), this, fn, value) - } - } else if (value.parent) { - // save the port to communicate with the main thread - // this will be received once - this.parent = value.parent - } else if (value.kill) { - // here is time to kill this worker, just clearing the interval - if (this.interval) clearInterval(this.interval) - this.emitDestroy() - } - }) - } - - protected getMainWorker (): MessagePort { - if (!this.parent) { - throw new Error('Parent was not set') - } - return this.parent + super('worker-thread-pool:pioardi', isMainThread, fn, parentPort, opts) } protected sendToMainWorker (message: MessageValue): void {