import { MessageChannel } from 'node:worker_threads'
import { CircularArray } from '../circular-array'
import type { Task } from '../utility-types'
-import { DEFAULT_TASK_NAME } from '../utils'
+import { DEFAULT_TASK_NAME, once } from '../utils'
import { Deque } from '../deque'
import {
type IWorker,
public usage: WorkerUsage
/** @inheritdoc */
public tasksQueueBackPressureSize: number
+ /** @inheritdoc */
+ public onBackPressure?: (workerId: number) => void
private readonly taskFunctionsUsage: Map<string, WorkerUsage>
private readonly tasksQueue: Deque<Task<Data>>
/** @inheritdoc */
public enqueueTask (task: Task<Data>): number {
- return this.tasksQueue.push(task)
+ const tasksQueueSize = this.tasksQueue.push(task)
+ if (this.onBackPressure != null && this.hasBackPressure()) {
+ once(this.onBackPressure, this)(this.info.id as number)
+ }
+ return tasksQueueSize
+ }
+
+ /** @inheritdoc */
+ public unshiftTask (task: Task<Data>): number {
+ const tasksQueueSize = this.tasksQueue.unshift(task)
+ if (this.onBackPressure != null && this.hasBackPressure()) {
+ once(this.onBackPressure, this)(this.info.id as number)
+ }
+ return tasksQueueSize
}
/** @inheritdoc */
return this.tasksQueue.shift()
}
+ /** @inheritdoc */
+ public popTask (): Task<Data> | undefined {
+ return this.tasksQueue.pop()
+ }
+
/** @inheritdoc */
public clearTasksQueue (): void {
this.tasksQueue.clear()