-import type { Worker } from 'cluster'
-import { isMaster, worker } from 'cluster'
-import type { JSONValue, MessageValue } from '../utility-types'
+import cluster, { type Worker } from 'node:cluster'
+import type { MessageValue } from '../utility-types'
import { AbstractWorker } from './abstract-worker'
import type { WorkerOptions } from './worker-options'
+import type { TaskFunctions, WorkerFunction } from './worker-functions'
/**
* A cluster worker used by a poolifier `ClusterPool`.
* If you use a `DynamicClusterPool` 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.
- * @template Response Type of response the worker sends back to the main worker.
- *
+ * @typeParam Data - Type of data this worker receives from pool's execution. This can only be structured-cloneable data.
+ * @typeParam Response - Type of response the worker sends back to the main worker. This can only be structured-cloneable data.
* @author [Christopher Quadflieg](https://github.com/Shinigami92)
* @since 2.0.0
*/
export class ClusterWorker<
- Data extends JSONValue = JSONValue,
- Response extends JSONValue = JSONValue
+ Data = unknown,
+ Response = unknown
> extends AbstractWorker<Worker, Data, Response> {
/**
* Constructs a new poolifier cluster worker.
*
- * @param fn Function processed by the worker when the pool's `execution` function is invoked.
- * @param opts Options for the worker.
+ * @param taskFunctions - Task function(s) 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-cluster-pool:pioardi', isMaster, fn, opts)
-
- worker.on('message', (value: MessageValue<Data>) => {
- if (value?.data && value.id) {
- // here you will receive messages
- // console.log('This is the main worker ' + isMaster)
- 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.kill) {
- // here is time to kill this worker, just clearing the interval
- if (this.interval) clearInterval(this.interval)
- this.emitDestroy()
- }
- })
+ public constructor (
+ taskFunctions:
+ | WorkerFunction<Data, Response>
+ | TaskFunctions<Data, Response>,
+ opts: WorkerOptions = {}
+ ) {
+ super(
+ 'worker-cluster-pool:poolifier',
+ cluster.isPrimary,
+ taskFunctions,
+ cluster.worker as Worker,
+ opts
+ )
+ if (!this.isMain) {
+ this.sendToMainWorker({ workerId: this.id, started: true })
+ }
}
- protected getMainWorker (): Worker {
- return worker
+ /** @inheritDoc */
+ protected get id (): number {
+ return this.getMainWorker().id
}
+ /** @inheritDoc */
protected sendToMainWorker (message: MessageValue<Response>): void {
+ console.log('sending message to main worker(cluster)', message)
this.getMainWorker().send(message)
}
+ /** @inheritDoc */
protected handleError (e: Error | string): string {
return e instanceof Error ? e.message : e
}