Commit | Line | Data |
---|---|---|
fc3e6586 | 1 | import crypto from 'node:crypto' |
be0676b3 APA |
2 | import type { |
3 | MessageValue, | |
4 | PromiseWorkerResponseWrapper | |
5 | } from '../utility-types' | |
ed6dd37f | 6 | import { EMPTY_FUNCTION } from '../utils' |
34a0cfab | 7 | import { KillBehaviors, isKillBehavior } from '../worker/worker-options' |
bdaf31cd | 8 | import type { PoolOptions } from './pool' |
b4904890 | 9 | import { PoolEmitter } from './pool' |
ffcbbad8 | 10 | import type { IPoolInternal, TasksUsage, WorkerType } from './pool-internal' |
b4904890 | 11 | import { PoolType } from './pool-internal' |
ea7a90d3 | 12 | import type { IPoolWorker } from './pool-worker' |
a35560ba S |
13 | import { |
14 | WorkerChoiceStrategies, | |
63220255 | 15 | type WorkerChoiceStrategy |
bdaf31cd JB |
16 | } from './selection-strategies/selection-strategies-types' |
17 | import { WorkerChoiceStrategyContext } from './selection-strategies/worker-choice-strategy-context' | |
c97c7edb | 18 | |
729c563d | 19 | /** |
ea7a90d3 | 20 | * Base class that implements some shared logic for all poolifier pools. |
729c563d | 21 | * |
38e795c1 JB |
22 | * @typeParam Worker - Type of worker which manages this pool. |
23 | * @typeParam Data - Type of data sent to the worker. This can only be serializable data. | |
24 | * @typeParam Response - Type of response of execution. This can only be serializable data. | |
729c563d | 25 | */ |
c97c7edb | 26 | export abstract class AbstractPool< |
ea7a90d3 | 27 | Worker extends IPoolWorker, |
d3c8a1a8 S |
28 | Data = unknown, |
29 | Response = unknown | |
9b2fdd9f | 30 | > implements IPoolInternal<Worker, Data, Response> { |
38e795c1 | 31 | /** {@inheritDoc} */ |
ffcbbad8 JB |
32 | public readonly workers: Map<number, WorkerType<Worker>> = new Map< |
33 | number, | |
34 | WorkerType<Worker> | |
bf9549ae | 35 | >() |
4a6952ff | 36 | |
38e795c1 | 37 | /** {@inheritDoc} */ |
7c0ba920 JB |
38 | public readonly emitter?: PoolEmitter |
39 | ||
ffcbbad8 JB |
40 | /** |
41 | * Id of the next worker. | |
42 | */ | |
43 | protected nextWorkerId: number = 0 | |
44 | ||
be0676b3 APA |
45 | /** |
46 | * The promise map. | |
47 | * | |
ffcbbad8 | 48 | * - `key`: This is the message id of each submitted task. |
be0676b3 APA |
49 | * - `value`: An object that contains the worker, the resolve function and the reject function. |
50 | * | |
51 | * When we receive a message from the worker we get a map entry and resolve/reject the promise based on the message. | |
52 | */ | |
53 | protected promiseMap: Map< | |
b4e75778 | 54 | string, |
78cea37e | 55 | PromiseWorkerResponseWrapper<Worker, Response> |
b4e75778 | 56 | > = new Map<string, PromiseWorkerResponseWrapper<Worker, Response>>() |
c97c7edb | 57 | |
a35560ba S |
58 | /** |
59 | * Worker choice strategy instance implementing the worker choice algorithm. | |
60 | * | |
61 | * Default to a strategy implementing a round robin algorithm. | |
62 | */ | |
63 | protected workerChoiceStrategyContext: WorkerChoiceStrategyContext< | |
78cea37e JB |
64 | Worker, |
65 | Data, | |
66 | Response | |
a35560ba S |
67 | > |
68 | ||
729c563d S |
69 | /** |
70 | * Constructs a new poolifier pool. | |
71 | * | |
38e795c1 JB |
72 | * @param numberOfWorkers - Number of workers that this pool should manage. |
73 | * @param filePath - Path to the worker-file. | |
74 | * @param opts - Options for the pool. | |
729c563d | 75 | */ |
c97c7edb | 76 | public constructor ( |
5c5a1fb7 | 77 | public readonly numberOfWorkers: number, |
c97c7edb | 78 | public readonly filePath: string, |
1927ee67 | 79 | public readonly opts: PoolOptions<Worker> |
c97c7edb | 80 | ) { |
78cea37e | 81 | if (!this.isMain()) { |
c97c7edb S |
82 | throw new Error('Cannot start a pool from a worker!') |
83 | } | |
8d3782fa | 84 | this.checkNumberOfWorkers(this.numberOfWorkers) |
c510fea7 | 85 | this.checkFilePath(this.filePath) |
7c0ba920 | 86 | this.checkPoolOptions(this.opts) |
c97c7edb S |
87 | this.setupHook() |
88 | ||
5c5a1fb7 | 89 | for (let i = 1; i <= this.numberOfWorkers; i++) { |
280c2a77 | 90 | this.createAndSetupWorker() |
c97c7edb S |
91 | } |
92 | ||
6bd72cd0 | 93 | if (this.opts.enableEvents === true) { |
7c0ba920 JB |
94 | this.emitter = new PoolEmitter() |
95 | } | |
a35560ba S |
96 | this.workerChoiceStrategyContext = new WorkerChoiceStrategyContext( |
97 | this, | |
4a6952ff JB |
98 | () => { |
99 | const workerCreated = this.createAndSetupWorker() | |
f3636726 | 100 | this.registerWorkerMessageListener(workerCreated, message => { |
4a6952ff JB |
101 | if ( |
102 | isKillBehavior(KillBehaviors.HARD, message.kill) || | |
bdaf31cd | 103 | this.getWorkerRunningTasks(workerCreated) === 0 |
4a6952ff JB |
104 | ) { |
105 | // Kill received from the worker, means that no new tasks are submitted to that worker for a while ( > maxInactiveTime) | |
a9d9ea34 | 106 | void this.destroyWorker(workerCreated) |
4a6952ff JB |
107 | } |
108 | }) | |
109 | return workerCreated | |
110 | }, | |
e843b904 | 111 | this.opts.workerChoiceStrategy |
a35560ba | 112 | ) |
c97c7edb S |
113 | } |
114 | ||
a35560ba | 115 | private checkFilePath (filePath: string): void { |
ffcbbad8 JB |
116 | if ( |
117 | filePath == null || | |
118 | (typeof filePath === 'string' && filePath.trim().length === 0) | |
119 | ) { | |
c510fea7 APA |
120 | throw new Error('Please specify a file with a worker implementation') |
121 | } | |
122 | } | |
123 | ||
8d3782fa JB |
124 | private checkNumberOfWorkers (numberOfWorkers: number): void { |
125 | if (numberOfWorkers == null) { | |
126 | throw new Error( | |
127 | 'Cannot instantiate a pool without specifying the number of workers' | |
128 | ) | |
78cea37e | 129 | } else if (!Number.isSafeInteger(numberOfWorkers)) { |
473c717a | 130 | throw new TypeError( |
8d3782fa JB |
131 | 'Cannot instantiate a pool with a non integer number of workers' |
132 | ) | |
133 | } else if (numberOfWorkers < 0) { | |
473c717a | 134 | throw new RangeError( |
8d3782fa JB |
135 | 'Cannot instantiate a pool with a negative number of workers' |
136 | ) | |
7c0ba920 | 137 | } else if (this.type === PoolType.FIXED && numberOfWorkers === 0) { |
8d3782fa JB |
138 | throw new Error('Cannot instantiate a fixed pool with no worker') |
139 | } | |
140 | } | |
141 | ||
7c0ba920 | 142 | private checkPoolOptions (opts: PoolOptions<Worker>): void { |
e843b904 JB |
143 | this.opts.workerChoiceStrategy = |
144 | opts.workerChoiceStrategy ?? WorkerChoiceStrategies.ROUND_ROBIN | |
7c0ba920 JB |
145 | this.opts.enableEvents = opts.enableEvents ?? true |
146 | } | |
147 | ||
38e795c1 | 148 | /** {@inheritDoc} */ |
7c0ba920 JB |
149 | public abstract get type (): PoolType |
150 | ||
38e795c1 | 151 | /** {@inheritDoc} */ |
7c0ba920 JB |
152 | public get numberOfRunningTasks (): number { |
153 | return this.promiseMap.size | |
a35560ba S |
154 | } |
155 | ||
ffcbbad8 | 156 | /** |
b4e75778 | 157 | * Gets the given worker key. |
ffcbbad8 JB |
158 | * |
159 | * @param worker - The worker. | |
160 | * @returns The worker key. | |
161 | */ | |
162 | private getWorkerKey (worker: Worker): number | undefined { | |
163 | return [...this.workers].find(([, value]) => value.worker === worker)?.[0] | |
bf9549ae JB |
164 | } |
165 | ||
38e795c1 | 166 | /** {@inheritDoc} */ |
bdaf31cd | 167 | public getWorkerRunningTasks (worker: Worker): number | undefined { |
ffcbbad8 JB |
168 | return this.workers.get(this.getWorkerKey(worker) as number)?.tasksUsage |
169 | ?.running | |
bdaf31cd JB |
170 | } |
171 | ||
38e795c1 | 172 | /** {@inheritDoc} */ |
bf9549ae | 173 | public getWorkerAverageTasksRunTime (worker: Worker): number | undefined { |
ffcbbad8 JB |
174 | return this.workers.get(this.getWorkerKey(worker) as number)?.tasksUsage |
175 | ?.avgRunTime | |
bdaf31cd JB |
176 | } |
177 | ||
38e795c1 | 178 | /** {@inheritDoc} */ |
a35560ba S |
179 | public setWorkerChoiceStrategy ( |
180 | workerChoiceStrategy: WorkerChoiceStrategy | |
181 | ): void { | |
b98ec2e6 | 182 | this.opts.workerChoiceStrategy = workerChoiceStrategy |
ffcbbad8 JB |
183 | for (const [key, value] of this.workers) { |
184 | this.setWorker(key, value.worker, { | |
185 | run: 0, | |
186 | running: 0, | |
187 | runTime: 0, | |
188 | avgRunTime: 0 | |
189 | }) | |
ea7a90d3 | 190 | } |
a35560ba S |
191 | this.workerChoiceStrategyContext.setWorkerChoiceStrategy( |
192 | workerChoiceStrategy | |
193 | ) | |
194 | } | |
195 | ||
38e795c1 | 196 | /** {@inheritDoc} */ |
7c0ba920 JB |
197 | public abstract get busy (): boolean |
198 | ||
199 | protected internalGetBusyStatus (): boolean { | |
200 | return ( | |
201 | this.numberOfRunningTasks >= this.numberOfWorkers && | |
bdaf31cd | 202 | this.findFreeWorker() === false |
7c0ba920 JB |
203 | ) |
204 | } | |
205 | ||
38e795c1 | 206 | /** {@inheritDoc} */ |
bdaf31cd | 207 | public findFreeWorker (): Worker | false { |
ffcbbad8 JB |
208 | for (const value of this.workers.values()) { |
209 | if (value.tasksUsage.running === 0) { | |
bdaf31cd | 210 | // A worker is free, return the matching worker |
ffcbbad8 | 211 | return value.worker |
7c0ba920 JB |
212 | } |
213 | } | |
214 | return false | |
215 | } | |
216 | ||
38e795c1 | 217 | /** {@inheritDoc} */ |
78cea37e | 218 | public async execute (data: Data): Promise<Response> { |
280c2a77 | 219 | const worker = this.chooseWorker() |
b4e75778 JB |
220 | const messageId = crypto.randomUUID() |
221 | const res = this.internalExecute(worker, messageId) | |
14916bf9 | 222 | this.checkAndEmitBusy() |
a05c10de | 223 | this.sendToWorker(worker, { |
e5a5c0fc JB |
224 | // eslint-disable-next-line @typescript-eslint/consistent-type-assertions |
225 | data: data ?? ({} as Data), | |
b4e75778 | 226 | id: messageId |
a05c10de | 227 | }) |
78cea37e | 228 | // eslint-disable-next-line @typescript-eslint/return-await |
280c2a77 S |
229 | return res |
230 | } | |
c97c7edb | 231 | |
38e795c1 | 232 | /** {@inheritDoc} */ |
c97c7edb | 233 | public async destroy (): Promise<void> { |
1fbcaa7c | 234 | await Promise.all( |
ffcbbad8 JB |
235 | [...this.workers].map(async ([, value]) => { |
236 | await this.destroyWorker(value.worker) | |
1fbcaa7c JB |
237 | }) |
238 | ) | |
c97c7edb S |
239 | } |
240 | ||
4a6952ff | 241 | /** |
675bb809 | 242 | * Shutdowns given worker. |
4a6952ff | 243 | * |
38e795c1 | 244 | * @param worker - A worker within `workers`. |
4a6952ff JB |
245 | */ |
246 | protected abstract destroyWorker (worker: Worker): void | Promise<void> | |
c97c7edb | 247 | |
729c563d | 248 | /** |
280c2a77 S |
249 | * Setup hook that can be overridden by a Poolifier pool implementation |
250 | * to run code before workers are created in the abstract constructor. | |
729c563d | 251 | */ |
280c2a77 S |
252 | protected setupHook (): void { |
253 | // Can be overridden | |
254 | } | |
c97c7edb | 255 | |
729c563d | 256 | /** |
280c2a77 S |
257 | * Should return whether the worker is the main worker or not. |
258 | */ | |
259 | protected abstract isMain (): boolean | |
260 | ||
261 | /** | |
bf9549ae JB |
262 | * Hook executed before the worker task promise resolution. |
263 | * Can be overridden. | |
729c563d | 264 | * |
38e795c1 | 265 | * @param worker - The worker. |
729c563d | 266 | */ |
bf9549ae JB |
267 | protected beforePromiseWorkerResponseHook (worker: Worker): void { |
268 | this.increaseWorkerRunningTasks(worker) | |
c97c7edb S |
269 | } |
270 | ||
c01733f1 | 271 | /** |
bf9549ae JB |
272 | * Hook executed after the worker task promise resolution. |
273 | * Can be overridden. | |
c01733f1 | 274 | * |
38e795c1 JB |
275 | * @param message - The received message. |
276 | * @param promise - The Promise response. | |
c01733f1 | 277 | */ |
bf9549ae JB |
278 | protected afterPromiseWorkerResponseHook ( |
279 | message: MessageValue<Response>, | |
280 | promise: PromiseWorkerResponseWrapper<Worker, Response> | |
281 | ): void { | |
282 | this.decreaseWorkerRunningTasks(promise.worker) | |
283 | this.stepWorkerRunTasks(promise.worker, 1) | |
284 | this.updateWorkerTasksRunTime(promise.worker, message.taskRunTime) | |
c01733f1 | 285 | } |
286 | ||
729c563d S |
287 | /** |
288 | * Removes the given worker from the pool. | |
289 | * | |
38e795c1 | 290 | * @param worker - The worker that will be removed. |
729c563d | 291 | */ |
f2fdaa86 | 292 | protected removeWorker (worker: Worker): void { |
ffcbbad8 JB |
293 | this.workers.delete(this.getWorkerKey(worker) as number) |
294 | --this.nextWorkerId | |
f2fdaa86 JB |
295 | } |
296 | ||
280c2a77 | 297 | /** |
675bb809 | 298 | * Chooses a worker for the next task. |
280c2a77 S |
299 | * |
300 | * The default implementation uses a round robin algorithm to distribute the load. | |
301 | * | |
302 | * @returns Worker. | |
303 | */ | |
304 | protected chooseWorker (): Worker { | |
a35560ba | 305 | return this.workerChoiceStrategyContext.execute() |
c97c7edb S |
306 | } |
307 | ||
280c2a77 | 308 | /** |
675bb809 | 309 | * Sends a message to the given worker. |
280c2a77 | 310 | * |
38e795c1 JB |
311 | * @param worker - The worker which should receive the message. |
312 | * @param message - The message. | |
280c2a77 S |
313 | */ |
314 | protected abstract sendToWorker ( | |
315 | worker: Worker, | |
316 | message: MessageValue<Data> | |
317 | ): void | |
318 | ||
4a6952ff | 319 | /** |
bdede008 | 320 | * Registers a listener callback on a given worker. |
4a6952ff | 321 | * |
38e795c1 JB |
322 | * @param worker - The worker which should register a listener. |
323 | * @param listener - The message listener callback. | |
4a6952ff JB |
324 | */ |
325 | protected abstract registerWorkerMessageListener< | |
4f7fa42a | 326 | Message extends Data | Response |
78cea37e | 327 | >(worker: Worker, listener: (message: MessageValue<Message>) => void): void |
c97c7edb | 328 | |
729c563d S |
329 | /** |
330 | * Returns a newly created worker. | |
331 | */ | |
280c2a77 | 332 | protected abstract createWorker (): Worker |
c97c7edb | 333 | |
729c563d S |
334 | /** |
335 | * Function that can be hooked up when a worker has been newly created and moved to the workers registry. | |
336 | * | |
38e795c1 | 337 | * Can be used to update the `maxListeners` or binding the `main-worker`\<-\>`worker` connection if not bind by default. |
729c563d | 338 | * |
38e795c1 | 339 | * @param worker - The newly created worker. |
729c563d | 340 | */ |
280c2a77 | 341 | protected abstract afterWorkerSetup (worker: Worker): void |
c97c7edb | 342 | |
4a6952ff JB |
343 | /** |
344 | * Creates a new worker for this pool and sets it up completely. | |
345 | * | |
346 | * @returns New, completely set up worker. | |
347 | */ | |
348 | protected createAndSetupWorker (): Worker { | |
bdacc2d2 | 349 | const worker = this.createWorker() |
280c2a77 | 350 | |
35cf1c03 | 351 | worker.on('message', this.opts.messageHandler ?? EMPTY_FUNCTION) |
a35560ba S |
352 | worker.on('error', this.opts.errorHandler ?? EMPTY_FUNCTION) |
353 | worker.on('online', this.opts.onlineHandler ?? EMPTY_FUNCTION) | |
354 | worker.on('exit', this.opts.exitHandler ?? EMPTY_FUNCTION) | |
a974afa6 JB |
355 | worker.once('exit', () => { |
356 | this.removeWorker(worker) | |
357 | }) | |
280c2a77 | 358 | |
ffcbbad8 JB |
359 | this.setWorker(this.nextWorkerId, worker, { |
360 | run: 0, | |
361 | running: 0, | |
362 | runTime: 0, | |
363 | avgRunTime: 0 | |
364 | }) | |
365 | ++this.nextWorkerId | |
280c2a77 S |
366 | |
367 | this.afterWorkerSetup(worker) | |
368 | ||
c97c7edb S |
369 | return worker |
370 | } | |
be0676b3 APA |
371 | |
372 | /** | |
373 | * This function is the listener registered for each worker. | |
374 | * | |
bdacc2d2 | 375 | * @returns The listener function to execute when a message is received from a worker. |
be0676b3 APA |
376 | */ |
377 | protected workerListener (): (message: MessageValue<Response>) => void { | |
4a6952ff | 378 | return message => { |
bdacc2d2 JB |
379 | if (message.id !== undefined) { |
380 | const promise = this.promiseMap.get(message.id) | |
381 | if (promise !== undefined) { | |
78cea37e | 382 | if (message.error != null) { |
a05c10de JB |
383 | promise.reject(message.error) |
384 | } else { | |
385 | promise.resolve(message.data as Response) | |
386 | } | |
bf9549ae | 387 | this.afterPromiseWorkerResponseHook(message, promise) |
be0676b3 APA |
388 | this.promiseMap.delete(message.id) |
389 | } | |
390 | } | |
391 | } | |
be0676b3 | 392 | } |
7c0ba920 | 393 | |
78cea37e JB |
394 | private async internalExecute ( |
395 | worker: Worker, | |
b4e75778 | 396 | messageId: string |
78cea37e JB |
397 | ): Promise<Response> { |
398 | this.beforePromiseWorkerResponseHook(worker) | |
399 | return await new Promise<Response>((resolve, reject) => { | |
400 | this.promiseMap.set(messageId, { resolve, reject, worker }) | |
401 | }) | |
402 | } | |
403 | ||
7c0ba920 | 404 | private checkAndEmitBusy (): void { |
78cea37e | 405 | if (this.opts.enableEvents === true && this.busy) { |
7c0ba920 JB |
406 | this.emitter?.emit('busy') |
407 | } | |
408 | } | |
bf9549ae JB |
409 | |
410 | /** | |
10fcfaf4 | 411 | * Increases the number of tasks that the given worker has applied. |
bf9549ae | 412 | * |
38e795c1 | 413 | * @param worker - Worker which running tasks is increased. |
bf9549ae JB |
414 | */ |
415 | private increaseWorkerRunningTasks (worker: Worker): void { | |
416 | this.stepWorkerRunningTasks(worker, 1) | |
417 | } | |
418 | ||
419 | /** | |
10fcfaf4 | 420 | * Decreases the number of tasks that the given worker has applied. |
bf9549ae | 421 | * |
38e795c1 | 422 | * @param worker - Worker which running tasks is decreased. |
bf9549ae JB |
423 | */ |
424 | private decreaseWorkerRunningTasks (worker: Worker): void { | |
425 | this.stepWorkerRunningTasks(worker, -1) | |
426 | } | |
427 | ||
ffcbbad8 | 428 | /** |
b4e75778 | 429 | * Gets tasks usage of the given worker. |
ffcbbad8 JB |
430 | * |
431 | * @param worker - Worker which tasks usage is returned. | |
432 | */ | |
433 | private getWorkerTasksUsage (worker: Worker): TasksUsage | undefined { | |
434 | if (this.checkWorker(worker)) { | |
435 | const workerKey = this.getWorkerKey(worker) as number | |
436 | const workerEntry = this.workers.get(workerKey) as WorkerType<Worker> | |
437 | return workerEntry.tasksUsage | |
438 | } | |
439 | } | |
440 | ||
bf9549ae | 441 | /** |
10fcfaf4 | 442 | * Steps the number of tasks that the given worker has applied. |
bf9549ae | 443 | * |
38e795c1 JB |
444 | * @param worker - Worker which running tasks are stepped. |
445 | * @param step - Number of running tasks step. | |
bf9549ae JB |
446 | */ |
447 | private stepWorkerRunningTasks (worker: Worker, step: number): void { | |
ffcbbad8 JB |
448 | // prettier-ignore |
449 | (this.getWorkerTasksUsage(worker) as TasksUsage).running += step | |
bf9549ae JB |
450 | } |
451 | ||
452 | /** | |
10fcfaf4 | 453 | * Steps the number of tasks that the given worker has run. |
bf9549ae | 454 | * |
38e795c1 JB |
455 | * @param worker - Worker which has run tasks. |
456 | * @param step - Number of run tasks step. | |
bf9549ae | 457 | */ |
10fcfaf4 | 458 | private stepWorkerRunTasks (worker: Worker, step: number): void { |
ffcbbad8 JB |
459 | // prettier-ignore |
460 | (this.getWorkerTasksUsage(worker) as TasksUsage).run += step | |
bf9549ae JB |
461 | } |
462 | ||
463 | /** | |
23135a89 | 464 | * Updates tasks runtime for the given worker. |
bf9549ae | 465 | * |
38e795c1 JB |
466 | * @param worker - Worker which run the task. |
467 | * @param taskRunTime - Worker task runtime. | |
bf9549ae JB |
468 | */ |
469 | private updateWorkerTasksRunTime ( | |
470 | worker: Worker, | |
471 | taskRunTime: number | undefined | |
10fcfaf4 JB |
472 | ): void { |
473 | if ( | |
474 | this.workerChoiceStrategyContext.getWorkerChoiceStrategy() | |
ffcbbad8 | 475 | .requiredStatistics.runTime |
10fcfaf4 | 476 | ) { |
ffcbbad8 JB |
477 | const workerTasksUsage = this.getWorkerTasksUsage(worker) as TasksUsage |
478 | workerTasksUsage.runTime += taskRunTime ?? 0 | |
479 | if (workerTasksUsage.run !== 0) { | |
480 | workerTasksUsage.avgRunTime = | |
481 | workerTasksUsage.runTime / workerTasksUsage.run | |
10fcfaf4 | 482 | } |
a05c10de JB |
483 | } |
484 | } | |
485 | ||
486 | /** | |
ffcbbad8 | 487 | * Sets the given worker. |
ea7a90d3 | 488 | * |
ffcbbad8 | 489 | * @param workerKey - The worker key. |
38e795c1 | 490 | * @param worker - The worker. |
ffcbbad8 | 491 | * @param tasksUsage - The worker tasks usage. |
ea7a90d3 | 492 | */ |
ffcbbad8 JB |
493 | private setWorker ( |
494 | workerKey: number, | |
495 | worker: Worker, | |
496 | tasksUsage: TasksUsage | |
497 | ): void { | |
498 | this.workers.set(workerKey, { | |
499 | worker, | |
500 | tasksUsage | |
ea7a90d3 JB |
501 | }) |
502 | } | |
503 | ||
bf9549ae | 504 | /** |
ffcbbad8 | 505 | * Checks if the given worker is registered in the pool. |
ea7a90d3 | 506 | * |
ffcbbad8 JB |
507 | * @param worker - Worker to check. |
508 | * @returns `true` if the worker is registered in the pool. | |
ea7a90d3 | 509 | */ |
ffcbbad8 JB |
510 | private checkWorker (worker: Worker): boolean { |
511 | if (this.getWorkerKey(worker) == null) { | |
512 | throw new Error('Worker could not be found in the pool') | |
513 | } | |
514 | return true | |
ea7a90d3 | 515 | } |
c97c7edb | 516 | } |