import type { IPoolWorker } from '../pool-worker'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
-import type { RequiredStatistics } from './selection-strategies-types'
+import type {
+ IWorkerChoiceStrategy,
+ RequiredStatistics
+} from './selection-strategies-types'
/**
* Selects the less busy worker.
* @typeParam Response - Type of response of execution. This can only be serializable data.
*/
export class LessBusyWorkerChoiceStrategy<
- Worker extends IPoolWorker,
- Data,
- Response
-> extends AbstractWorkerChoiceStrategy<Worker, Data, Response> {
+ Worker extends IPoolWorker,
+ Data,
+ Response
+ >
+ extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
+ implements IWorkerChoiceStrategy {
/** {@inheritDoc} */
public readonly requiredStatistics: RequiredStatistics = {
- runTime: true
+ runTime: true,
+ avgRunTime: false
}
/** {@inheritDoc} */
}
/** {@inheritDoc} */
- public choose (): Worker {
+ public choose (): number {
+ const freeWorkerKey = this.pool.findFreeWorkerKey()
+ if (freeWorkerKey !== -1) {
+ return freeWorkerKey
+ }
let minRunTime = Infinity
- let lessBusyWorker!: Worker
- for (const value of this.pool.workers.values()) {
- const worker = value.worker
- const workerRunTime = this.pool.getWorkerTasksUsage(worker)
- ?.runTime as number
- if (!this.isDynamicPool && workerRunTime === 0) {
- return worker
+ let lessBusyWorkerKey!: number
+ for (const [index, workerItem] of this.pool.workers.entries()) {
+ const workerRunTime = workerItem.tasksUsage.runTime
+ if (workerRunTime === 0) {
+ return index
} else if (workerRunTime < minRunTime) {
minRunTime = workerRunTime
- lessBusyWorker = worker
+ lessBusyWorkerKey = index
}
}
- return lessBusyWorker
+ return lessBusyWorkerKey
+ }
+
+ /** {@inheritDoc} */
+ public remove (workerKey: number): boolean {
+ return true
}
}