DEFAULT_TASK_NAME,
EMPTY_FUNCTION,
exponentialDelay,
+ getWorkerId,
+ getWorkerType,
sleep
} from '../utils'
import { Deque } from '../deque'
type IWorker,
type IWorkerNode,
type WorkerInfo,
+ type WorkerNodeEventCallback,
type WorkerType,
WorkerTypes,
type WorkerUsage
/** @inheritdoc */
public tasksQueueBackPressureSize: number
/** @inheritdoc */
- public onBackPressure?: (workerId: number) => void
+ public onBackPressure?: WorkerNodeEventCallback
/** @inheritdoc */
- public onEmptyQueue?: (workerId: number) => void
+ public onEmptyQueue?: WorkerNodeEventCallback
private readonly tasksQueue: Deque<Task<Data>>
private onEmptyQueueCount: number
private readonly taskFunctionsUsage: Map<string, WorkerUsage>
* Constructs a new worker node.
*
* @param worker - The worker.
- * @param workerType - The worker type.
* @param tasksQueueBackPressureSize - The tasks queue back pressure size.
*/
- constructor (
- worker: Worker,
- workerType: WorkerType,
- tasksQueueBackPressureSize: number
- ) {
- if (worker == null) {
- throw new TypeError('Cannot construct a worker node without a worker')
- }
- if (workerType == null) {
- throw new TypeError(
- 'Cannot construct a worker node without a worker type'
- )
- }
- if (tasksQueueBackPressureSize == null) {
- throw new TypeError(
- 'Cannot construct a worker node without a tasks queue back pressure size'
- )
- }
- if (!Number.isSafeInteger(tasksQueueBackPressureSize)) {
- throw new TypeError(
- 'Cannot construct a worker node with a tasks queue back pressure size that is not an integer'
- )
- }
+ constructor (worker: Worker, tasksQueueBackPressureSize: number) {
+ this.checkWorkerNodeArguments(worker, tasksQueueBackPressureSize)
this.worker = worker
- this.info = this.initWorkerInfo(worker, workerType)
+ this.info = this.initWorkerInfo(worker)
this.usage = this.initWorkerUsage()
- if (workerType === WorkerTypes.thread) {
+ if (this.info.type === WorkerTypes.thread) {
this.messageChannel = new MessageChannel()
}
this.tasksQueueBackPressureSize = tasksQueueBackPressureSize
this.onEmptyQueueCount = 0
return
}
- (this.onEmptyQueue as (workerId: number) => void)(this.info.id as number)
+ (this.onEmptyQueue as WorkerNodeEventCallback)(this.info.id as number)
++this.onEmptyQueueCount
await sleep(exponentialDelay(this.onEmptyQueueCount))
await this.startOnEmptyQueue()
}
- private initWorkerInfo (worker: Worker, workerType: WorkerType): WorkerInfo {
+ private initWorkerInfo (worker: Worker): WorkerInfo {
return {
- id: this.getWorkerId(worker, workerType),
- type: workerType,
+ id: getWorkerId(worker),
+ type: getWorkerType(worker) as WorkerType,
dynamic: false,
ready: false
}
}
}
- /**
- * Gets the worker id.
- *
- * @param worker - The worker.
- * @param workerType - The worker type.
- * @returns The worker id.
- */
- private getWorkerId (
+ private checkWorkerNodeArguments (
worker: Worker,
- workerType: WorkerType
- ): number | undefined {
- if (workerType === WorkerTypes.thread) {
- return worker.threadId
- } else if (workerType === WorkerTypes.cluster) {
- return worker.id
+ tasksQueueBackPressureSize: number
+ ): void {
+ if (worker == null) {
+ throw new TypeError('Cannot construct a worker node without a worker')
+ }
+ if (tasksQueueBackPressureSize == null) {
+ throw new TypeError(
+ 'Cannot construct a worker node without a tasks queue back pressure size'
+ )
+ }
+ if (!Number.isSafeInteger(tasksQueueBackPressureSize)) {
+ throw new TypeError(
+ 'Cannot construct a worker node with a tasks queue back pressure size that is not an integer'
+ )
+ }
+ if (tasksQueueBackPressureSize <= 0) {
+ throw new RangeError(
+ 'Cannot construct a worker node with a tasks queue back pressure size that is not a positive integer'
+ )
}
}
}