-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 { TaskFunction, TaskFunctions } from './task-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, worker, opts)
+ public constructor (
+ taskFunctions: TaskFunction<Data, Response> | TaskFunctions<Data, Response>,
+ opts: WorkerOptions = {}
+ ) {
+ super(
+ 'poolifier:cluster-worker',
+ cluster.isPrimary,
+ cluster.worker as Worker,
+ taskFunctions,
+ opts
+ )
}
- protected sendToMainWorker (message: MessageValue<Response>): void {
- this.getMainWorker().send(message)
+ /** @inheritDoc */
+ protected handleReadyMessage (message: MessageValue<Data>): void {
+ if (message.workerId === this.id && message.ready === false) {
+ try {
+ this.getMainWorker().on('message', this.messageListener.bind(this))
+ this.sendToMainWorker({
+ ready: true,
+ taskFunctionNames: this.listTaskFunctionNames()
+ })
+ } catch {
+ this.sendToMainWorker({
+ ready: false,
+ taskFunctionNames: this.listTaskFunctionNames()
+ })
+ }
+ }
}
- protected handleError (e: Error | string): string {
- return e instanceof Error ? e.message : e
+ /** @inheritDoc */
+ protected get id (): number {
+ return this.getMainWorker().id
+ }
+
+ /** @inheritDoc */
+ protected sendToMainWorker (message: MessageValue<Response>): void {
+ this.getMainWorker().send({ ...message, workerId: this.id })
}
}