X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fround-robin-worker-choice-strategy.ts;h=be4fe3326b9585c8bd4f7261023cda4fe5af710e;hb=48ce047aceb6831be7bc8bcb9255a56e110e4dd5;hp=ea1ad5673ba7dc7bd4a7b2f75f0af9dd1ff7a165;hpb=bdaf31cd0e637aa466c78d54a49f157899a2cb3f;p=poolifier.git diff --git a/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts b/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts index ea1ad567..be4fe332 100644 --- a/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts +++ b/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts @@ -1,30 +1,70 @@ -import type { AbstractPoolWorker } from '../abstract-pool-worker' +import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils' +import type { IPool } from '../pool' +import type { IWorker } from '../worker' import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy' +import type { + IWorkerChoiceStrategy, + WorkerChoiceStrategyOptions +} 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 execution response. This can only be serializable data. */ export class RoundRobinWorkerChoiceStrategy< - Worker extends AbstractPoolWorker, - Data, - Response -> extends AbstractWorkerChoiceStrategy { + Worker extends IWorker, + Data = unknown, + Response = unknown + > + extends AbstractWorkerChoiceStrategy + implements IWorkerChoiceStrategy { /** - * Index for the next worker. + * Id of the next worker node. */ - private nextWorkerIndex: number = 0 + private nextWorkerNodeId: number = 0 - /** @inheritdoc */ - public choose (): Worker { - const chosenWorker = this.pool.workers[this.nextWorkerIndex] - this.nextWorkerIndex = - this.nextWorkerIndex === this.pool.workers.length - 1 + /** @inheritDoc */ + public constructor ( + pool: IPool, + opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS + ) { + super(pool, opts) + this.setRequiredStatistics(this.opts) + } + + /** @inheritDoc */ + public reset (): boolean { + this.nextWorkerNodeId = 0 + return true + } + + /** @inheritDoc */ + public update (): boolean { + return true + } + + /** @inheritDoc */ + public choose (): number { + const chosenWorkerNodeKey = this.nextWorkerNodeId + this.nextWorkerNodeId = + this.nextWorkerNodeId === this.pool.workerNodes.length - 1 ? 0 - : this.nextWorkerIndex + 1 - return chosenWorker + : this.nextWorkerNodeId + 1 + return chosenWorkerNodeKey + } + + /** @inheritDoc */ + public remove (workerNodeKey: number): boolean { + if (this.nextWorkerNodeId === workerNodeKey) { + if (this.pool.workerNodes.length === 0) { + this.nextWorkerNodeId = 0 + } else if (this.nextWorkerNodeId > this.pool.workerNodes.length - 1) { + this.nextWorkerNodeId = this.pool.workerNodes.length - 1 + } + } + return true } }