*
* @param type - The type of async event.
* @param isMain - Whether this is the main worker or not.
- * @param taskFunctions - Task function(s) processed by the worker when the pool's `execution` function is invoked. The first function is the default function.
* @param mainWorker - Reference to main worker.
+ * @param taskFunctions - Task function(s) processed by the worker when the pool's `execution` function is invoked. The first function is the default function.
* @param opts - Options for the worker.
*/
public constructor (
type: string,
protected readonly isMain: boolean,
+ private readonly mainWorker: MainWorker,
taskFunctions:
| WorkerFunction<Data, Response>
| TaskFunctions<Data, Response>,
- protected readonly mainWorker: MainWorker,
protected readonly opts: WorkerOptions = {
/**
* The kill behavior option on this worker or its default value.
this.checkWorkerOptions(this.opts)
this.checkTaskFunctions(taskFunctions)
if (!this.isMain) {
- this.mainWorker?.on('message', this.messageListener.bind(this))
+ this.getMainWorker()?.on('message', this.handleReadyMessage.bind(this))
}
}
}
}
+ /**
+ * Handles the ready message sent by the main worker.
+ *
+ * @param message - The ready message.
+ */
+ protected abstract handleReadyMessage (message: MessageValue<Data>): void
+
/**
* Worker message listener.
*
* @param message - The received message.
*/
- protected messageListener (message: MessageValue<Data, Data>): void {
+ protected messageListener (message: MessageValue<Data>): void {
if (message.workerId === this.id) {
- if (message.ready != null) {
- // Startup message received
- this.sendReadyResponse()
- } else if (message.statistics != null) {
+ if (message.statistics != null) {
// Statistics message received
this.statistics = message.statistics
} else if (message.checkActive != null) {
// Check active message received
- message.checkActive ? this.startCheckActive() : this.stopCheckActive()
+ !this.isMain && message.checkActive
+ ? this.startCheckActive()
+ : this.stopCheckActive()
} else if (message.id != null && message.data != null) {
// Task message received
this.run(message)
} else if (message.kill === true) {
// Kill message received
- this.stopCheckActive()
- this.emitDestroy()
+ this.handleKillMessage(message)
}
}
}
/**
- * Sends the ready response to the main worker.
+ * Handles a kill message sent by the main worker.
+ *
+ * @param message - The kill message.
*/
- protected sendReadyResponse (): void {
- !this.isMain && this.sendToMainWorker({ ready: true, workerId: this.id })
+ protected handleKillMessage (message: MessageValue<Data>): void {
+ !this.isMain && this.stopCheckActive()
+ this.emitDestroy()
}
/**
this.activeInterval = setInterval(
this.checkActive.bind(this),
(this.opts.maxInactiveTime ?? DEFAULT_MAX_INACTIVE_TIME) / 2
- ).unref()
+ )
+ this.activeInterval.unref()
}
/**
* @throws {@link https://nodejs.org/api/errors.html#class-error} If the task function is not found.
*/
protected run (task: Task<Data>): void {
+ if (this.isMain) {
+ throw new Error('Cannot run a task in the main worker')
+ }
const fn = this.getTaskFunction(task.name)
if (isAsyncFunction(fn)) {
this.runInAsyncScope(this.runAsync.bind(this), this, fn, task)