+import { MessageChannel } from 'node:worker_threads'
import { CircularArray } from '../circular-array'
import { Queue } from '../queue'
+import type { Task } from '../utility-types'
import {
type IWorker,
type IWorkerNode,
- type Task,
type WorkerInfo,
type WorkerType,
WorkerTypes,
type WorkerUsage
} from './worker'
+/**
+ * Worker node.
+ *
+ * @typeParam Worker - Type of worker.
+ * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
+ */
export class WorkerNode<Worker extends IWorker, Data = unknown>
implements IWorkerNode<Worker, Data> {
public readonly worker: Worker
public readonly info: WorkerInfo
public usage: WorkerUsage
+ private readonly tasksUsage: Map<string, WorkerUsage>
private readonly tasksQueue: Queue<Task<Data>>
+ /**
+ * Constructs a new worker node.
+ *
+ * @param worker - The worker.
+ * @param workerType - The worker type.
+ */
constructor (worker: Worker, workerType: WorkerType) {
this.worker = worker
this.info = this.initWorkerInfo(worker, workerType)
this.usage = this.initWorkerUsage()
+ this.tasksUsage = new Map<string, WorkerUsage>()
this.tasksQueue = new Queue<Task<Data>>()
}
}
/**
- * Worker node tasks queue maximum size.
+ * Tasks queue maximum size.
*
* @returns The tasks queue maximum size.
*/
this.tasksQueue.clear()
}
+ /** @inheritdoc */
public resetUsage (): void {
this.usage = this.initWorkerUsage()
+ this.tasksUsage.clear()
+ }
+
+ /** @inheritdoc */
+ public closeChannel (): void {
+ if (this.info.messageChannel != null) {
+ this.info.messageChannel?.port1.unref()
+ this.info.messageChannel?.port2.unref()
+ this.info.messageChannel?.port1.close()
+ this.info.messageChannel?.port2.close()
+ delete this.info.messageChannel
+ }
+ }
+
+ /** @inheritdoc */
+ public getTaskWorkerUsage (name: string): WorkerUsage | undefined {
+ if (!this.tasksUsage.has(name)) {
+ this.tasksUsage.set(name, this.initTaskWorkerUsage(name))
+ }
+ return this.tasksUsage.get(name)
}
private initWorkerInfo (worker: Worker, workerType: WorkerType): WorkerInfo {
id: this.getWorkerId(worker, workerType),
type: workerType,
dynamic: false,
- started: true
+ ready: false,
+ ...(workerType === WorkerTypes.thread && {
+ messageChannel: new MessageChannel()
+ })
}
}
const getTasksQueueSize = (): number => {
return this.tasksQueueSize()
}
- const getTasksMaxQueueSize = (): number => {
+ const getTasksQueueMaxSize = (): number => {
return this.tasksQueueMaxSize()
}
return {
return getTasksQueueSize()
},
get maxQueued (): number {
- return getTasksMaxQueueSize()
+ return getTasksQueueMaxSize()
+ },
+ failed: 0
+ },
+ runTime: {
+ history: new CircularArray()
+ },
+ waitTime: {
+ history: new CircularArray()
+ },
+ elu: {
+ idle: {
+ history: new CircularArray()
+ },
+ active: {
+ history: new CircularArray()
+ }
+ }
+ }
+ }
+
+ private initTaskWorkerUsage (name: string): WorkerUsage {
+ const getTaskQueueSize = (): number => {
+ let taskQueueSize = 0
+ for (const task of this.tasksQueue) {
+ if (task.name === name) {
+ ++taskQueueSize
+ }
+ }
+ return taskQueueSize
+ }
+ return {
+ tasks: {
+ executed: 0,
+ executing: 0,
+ get queued (): number {
+ return getTaskQueueSize()
},
failed: 0
},
* Gets the worker id.
*
* @param worker - The worker.
+ * @param workerType - The worker type.
* @returns The worker id.
*/
private getWorkerId (