import type { IPoolWorker } from '../pool-worker'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
+import type { IWorkerChoiceStrategy } from './selection-strategies-types'
/**
* Selects the next worker in a round robin fashion.
*
- * @template Worker Type of worker which manages the strategy.
- * @template Data Type of data sent to the worker. This can only be serializable data.
- * @template Response Type of response of execution. This can only be serializable data.
+ * @typeParam Worker - Type of worker which manages the strategy.
+ * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
+ * @typeParam Response - Type of response of execution. This can only be serializable data.
*/
export class RoundRobinWorkerChoiceStrategy<
- Worker extends IPoolWorker,
- Data,
- Response
-> extends AbstractWorkerChoiceStrategy<Worker, Data, Response> {
+ Worker extends IPoolWorker,
+ Data,
+ Response
+ >
+ extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
+ implements IWorkerChoiceStrategy<Worker, Data, Response> {
/**
- * Index for the next worker.
+ * Id of the next worker.
*/
- private nextWorkerIndex: number = 0
+ private nextWorkerId: number = 0
- /** @inheritDoc */
- public resetStatistics (): boolean {
+ /** {@inheritDoc} */
+ public reset (): boolean {
+ this.nextWorkerId = 0
return true
}
- /** @inheritDoc */
- public choose (): Worker {
- const chosenWorker = this.pool.workers[this.nextWorkerIndex]
- this.nextWorkerIndex =
- this.nextWorkerIndex === this.pool.workers.length - 1
+ /** {@inheritDoc} */
+ public choose (): number {
+ const chosenWorkerKey = this.nextWorkerId
+ this.nextWorkerId =
+ this.nextWorkerId === this.pool.workers.length - 1
? 0
- : this.nextWorkerIndex + 1
- return chosenWorker
+ : this.nextWorkerId + 1
+ return chosenWorkerKey
+ }
+
+ /** {@inheritDoc} */
+ public remove (workerKey: number): boolean {
+ if (this.nextWorkerId === workerKey) {
+ this.nextWorkerId =
+ this.nextWorkerId > this.pool.workers.length - 1
+ ? this.pool.workers.length - 1
+ : this.nextWorkerId
+ }
+ return true
}
}