X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fround-robin-worker-choice-strategy.ts;h=1f5c499e0103dcddf612fe8e540d92c570d91656;hb=3a5027122ca6401ae1d755843b20f714c61e3240;hp=44dfa4b76a941fe6caa005fe07bf5dc5ccd34644;hpb=ffcbbad84f63b8a77f2b1a08f82deef5430f646e;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 44dfa4b7..1f5c499e 100644 --- a/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts +++ b/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts @@ -1,37 +1,78 @@ -import type { IPoolWorker } from '../pool-worker' -import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy' +import type { IPool } from '../pool.js' +import type { IWorker } from '../worker.js' +import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy.js' +import type { + IWorkerChoiceStrategy, + WorkerChoiceStrategyOptions, +} from './selection-strategies-types.js' /** * Selects the next worker in a round robin fashion. - * * @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. + * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. + * @typeParam Response - Type of execution response. This can only be structured-cloneable data. */ export class RoundRobinWorkerChoiceStrategy< - Worker extends IPoolWorker, - Data, - Response -> extends AbstractWorkerChoiceStrategy { - /** - * Id of the next worker. - */ - private nextWorkerId: number = 0 + Worker extends IWorker, + Data = unknown, + Response = unknown + > + extends AbstractWorkerChoiceStrategy + implements IWorkerChoiceStrategy { + /** @inheritDoc */ + public constructor ( + pool: IPool, + opts?: WorkerChoiceStrategyOptions + ) { + super(pool, opts) + } - /** {@inheritDoc} */ + /** @inheritDoc */ public reset (): boolean { - this.nextWorkerId = 0 + this.resetWorkerNodeKeyProperties() + return true + } + + /** @inheritDoc */ + public update (): boolean { + return true + } + + /** @inheritDoc */ + public choose (): number | undefined { + const chosenWorkerNodeKey = this.nextWorkerNodeKey + this.setPreviousWorkerNodeKey(chosenWorkerNodeKey) + this.roundRobinNextWorkerNodeKey() + this.checkNextWorkerNodeKey() + return chosenWorkerNodeKey + } + + /** @inheritDoc */ + public remove (workerNodeKey: number): boolean { + if (this.pool.workerNodes.length === 0) { + this.reset() + return true + } + if ( + this.nextWorkerNodeKey === workerNodeKey && + this.nextWorkerNodeKey > this.pool.workerNodes.length - 1 + ) { + this.nextWorkerNodeKey = this.pool.workerNodes.length - 1 + } + if ( + this.previousWorkerNodeKey === workerNodeKey && + this.previousWorkerNodeKey > this.pool.workerNodes.length - 1 + ) { + this.previousWorkerNodeKey = this.pool.workerNodes.length - 1 + } return true } - /** {@inheritDoc} */ - public choose (): Worker { - const chosenWorker = this.pool.workers.get(this.nextWorkerId) - ?.worker as Worker - this.nextWorkerId = - this.nextWorkerId === this.pool.workers.size - 1 + private roundRobinNextWorkerNodeKey (): number | undefined { + this.nextWorkerNodeKey = + this.nextWorkerNodeKey === this.pool.workerNodes.length - 1 ? 0 - : this.nextWorkerId + 1 - return chosenWorker + : (this.nextWorkerNodeKey ?? this.previousWorkerNodeKey) + 1 + return this.nextWorkerNodeKey } }