Commit | Line | Data |
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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 { |
f4ff1ce2 JB |
168 | return this.getWorkerTasksUsage(worker)?.running |
169 | } | |
170 | ||
171 | /** {@inheritDoc} */ | |
172 | public getWorkerRunTasks (worker: Worker): number | undefined { | |
173 | return this.getWorkerTasksUsage(worker)?.run | |
bdaf31cd JB |
174 | } |
175 | ||
38e795c1 | 176 | /** {@inheritDoc} */ |
bf9549ae | 177 | public getWorkerAverageTasksRunTime (worker: Worker): number | undefined { |
f4ff1ce2 | 178 | return this.getWorkerTasksUsage(worker)?.avgRunTime |
bdaf31cd JB |
179 | } |
180 | ||
38e795c1 | 181 | /** {@inheritDoc} */ |
a35560ba S |
182 | public setWorkerChoiceStrategy ( |
183 | workerChoiceStrategy: WorkerChoiceStrategy | |
184 | ): void { | |
b98ec2e6 | 185 | this.opts.workerChoiceStrategy = workerChoiceStrategy |
ffcbbad8 JB |
186 | for (const [key, value] of this.workers) { |
187 | this.setWorker(key, value.worker, { | |
188 | run: 0, | |
189 | running: 0, | |
190 | runTime: 0, | |
191 | avgRunTime: 0 | |
192 | }) | |
ea7a90d3 | 193 | } |
a35560ba S |
194 | this.workerChoiceStrategyContext.setWorkerChoiceStrategy( |
195 | workerChoiceStrategy | |
196 | ) | |
197 | } | |
198 | ||
38e795c1 | 199 | /** {@inheritDoc} */ |
7c0ba920 JB |
200 | public abstract get busy (): boolean |
201 | ||
202 | protected internalGetBusyStatus (): boolean { | |
203 | return ( | |
204 | this.numberOfRunningTasks >= this.numberOfWorkers && | |
bdaf31cd | 205 | this.findFreeWorker() === false |
7c0ba920 JB |
206 | ) |
207 | } | |
208 | ||
38e795c1 | 209 | /** {@inheritDoc} */ |
bdaf31cd | 210 | public findFreeWorker (): Worker | false { |
ffcbbad8 JB |
211 | for (const value of this.workers.values()) { |
212 | if (value.tasksUsage.running === 0) { | |
bdaf31cd | 213 | // A worker is free, return the matching worker |
ffcbbad8 | 214 | return value.worker |
7c0ba920 JB |
215 | } |
216 | } | |
217 | return false | |
218 | } | |
219 | ||
38e795c1 | 220 | /** {@inheritDoc} */ |
78cea37e | 221 | public async execute (data: Data): Promise<Response> { |
280c2a77 | 222 | const worker = this.chooseWorker() |
b4e75778 JB |
223 | const messageId = crypto.randomUUID() |
224 | const res = this.internalExecute(worker, messageId) | |
14916bf9 | 225 | this.checkAndEmitBusy() |
a05c10de | 226 | this.sendToWorker(worker, { |
e5a5c0fc JB |
227 | // eslint-disable-next-line @typescript-eslint/consistent-type-assertions |
228 | data: data ?? ({} as Data), | |
b4e75778 | 229 | id: messageId |
a05c10de | 230 | }) |
78cea37e | 231 | // eslint-disable-next-line @typescript-eslint/return-await |
280c2a77 S |
232 | return res |
233 | } | |
c97c7edb | 234 | |
38e795c1 | 235 | /** {@inheritDoc} */ |
c97c7edb | 236 | public async destroy (): Promise<void> { |
1fbcaa7c | 237 | await Promise.all( |
ffcbbad8 JB |
238 | [...this.workers].map(async ([, value]) => { |
239 | await this.destroyWorker(value.worker) | |
1fbcaa7c JB |
240 | }) |
241 | ) | |
c97c7edb S |
242 | } |
243 | ||
4a6952ff | 244 | /** |
675bb809 | 245 | * Shutdowns given worker. |
4a6952ff | 246 | * |
38e795c1 | 247 | * @param worker - A worker within `workers`. |
4a6952ff JB |
248 | */ |
249 | protected abstract destroyWorker (worker: Worker): void | Promise<void> | |
c97c7edb | 250 | |
729c563d | 251 | /** |
280c2a77 S |
252 | * Setup hook that can be overridden by a Poolifier pool implementation |
253 | * to run code before workers are created in the abstract constructor. | |
729c563d | 254 | */ |
280c2a77 S |
255 | protected setupHook (): void { |
256 | // Can be overridden | |
257 | } | |
c97c7edb | 258 | |
729c563d | 259 | /** |
280c2a77 S |
260 | * Should return whether the worker is the main worker or not. |
261 | */ | |
262 | protected abstract isMain (): boolean | |
263 | ||
264 | /** | |
bf9549ae JB |
265 | * Hook executed before the worker task promise resolution. |
266 | * Can be overridden. | |
729c563d | 267 | * |
38e795c1 | 268 | * @param worker - The worker. |
729c563d | 269 | */ |
bf9549ae JB |
270 | protected beforePromiseWorkerResponseHook (worker: Worker): void { |
271 | this.increaseWorkerRunningTasks(worker) | |
c97c7edb S |
272 | } |
273 | ||
c01733f1 | 274 | /** |
bf9549ae JB |
275 | * Hook executed after the worker task promise resolution. |
276 | * Can be overridden. | |
c01733f1 | 277 | * |
38e795c1 JB |
278 | * @param message - The received message. |
279 | * @param promise - The Promise response. | |
c01733f1 | 280 | */ |
bf9549ae JB |
281 | protected afterPromiseWorkerResponseHook ( |
282 | message: MessageValue<Response>, | |
283 | promise: PromiseWorkerResponseWrapper<Worker, Response> | |
284 | ): void { | |
285 | this.decreaseWorkerRunningTasks(promise.worker) | |
286 | this.stepWorkerRunTasks(promise.worker, 1) | |
287 | this.updateWorkerTasksRunTime(promise.worker, message.taskRunTime) | |
c01733f1 | 288 | } |
289 | ||
729c563d S |
290 | /** |
291 | * Removes the given worker from the pool. | |
292 | * | |
38e795c1 | 293 | * @param worker - The worker that will be removed. |
729c563d | 294 | */ |
f2fdaa86 | 295 | protected removeWorker (worker: Worker): void { |
ffcbbad8 JB |
296 | this.workers.delete(this.getWorkerKey(worker) as number) |
297 | --this.nextWorkerId | |
f2fdaa86 JB |
298 | } |
299 | ||
280c2a77 | 300 | /** |
675bb809 | 301 | * Chooses a worker for the next task. |
280c2a77 S |
302 | * |
303 | * The default implementation uses a round robin algorithm to distribute the load. | |
304 | * | |
305 | * @returns Worker. | |
306 | */ | |
307 | protected chooseWorker (): Worker { | |
a35560ba | 308 | return this.workerChoiceStrategyContext.execute() |
c97c7edb S |
309 | } |
310 | ||
280c2a77 | 311 | /** |
675bb809 | 312 | * Sends a message to the given worker. |
280c2a77 | 313 | * |
38e795c1 JB |
314 | * @param worker - The worker which should receive the message. |
315 | * @param message - The message. | |
280c2a77 S |
316 | */ |
317 | protected abstract sendToWorker ( | |
318 | worker: Worker, | |
319 | message: MessageValue<Data> | |
320 | ): void | |
321 | ||
4a6952ff | 322 | /** |
bdede008 | 323 | * Registers a listener callback on a given worker. |
4a6952ff | 324 | * |
38e795c1 JB |
325 | * @param worker - The worker which should register a listener. |
326 | * @param listener - The message listener callback. | |
4a6952ff JB |
327 | */ |
328 | protected abstract registerWorkerMessageListener< | |
4f7fa42a | 329 | Message extends Data | Response |
78cea37e | 330 | >(worker: Worker, listener: (message: MessageValue<Message>) => void): void |
c97c7edb | 331 | |
729c563d S |
332 | /** |
333 | * Returns a newly created worker. | |
334 | */ | |
280c2a77 | 335 | protected abstract createWorker (): Worker |
c97c7edb | 336 | |
729c563d S |
337 | /** |
338 | * Function that can be hooked up when a worker has been newly created and moved to the workers registry. | |
339 | * | |
38e795c1 | 340 | * Can be used to update the `maxListeners` or binding the `main-worker`\<-\>`worker` connection if not bind by default. |
729c563d | 341 | * |
38e795c1 | 342 | * @param worker - The newly created worker. |
729c563d | 343 | */ |
280c2a77 | 344 | protected abstract afterWorkerSetup (worker: Worker): void |
c97c7edb | 345 | |
4a6952ff JB |
346 | /** |
347 | * Creates a new worker for this pool and sets it up completely. | |
348 | * | |
349 | * @returns New, completely set up worker. | |
350 | */ | |
351 | protected createAndSetupWorker (): Worker { | |
bdacc2d2 | 352 | const worker = this.createWorker() |
280c2a77 | 353 | |
35cf1c03 | 354 | worker.on('message', this.opts.messageHandler ?? EMPTY_FUNCTION) |
a35560ba S |
355 | worker.on('error', this.opts.errorHandler ?? EMPTY_FUNCTION) |
356 | worker.on('online', this.opts.onlineHandler ?? EMPTY_FUNCTION) | |
357 | worker.on('exit', this.opts.exitHandler ?? EMPTY_FUNCTION) | |
a974afa6 JB |
358 | worker.once('exit', () => { |
359 | this.removeWorker(worker) | |
360 | }) | |
280c2a77 | 361 | |
ffcbbad8 JB |
362 | this.setWorker(this.nextWorkerId, worker, { |
363 | run: 0, | |
364 | running: 0, | |
365 | runTime: 0, | |
366 | avgRunTime: 0 | |
367 | }) | |
368 | ++this.nextWorkerId | |
280c2a77 S |
369 | |
370 | this.afterWorkerSetup(worker) | |
371 | ||
c97c7edb S |
372 | return worker |
373 | } | |
be0676b3 APA |
374 | |
375 | /** | |
376 | * This function is the listener registered for each worker. | |
377 | * | |
bdacc2d2 | 378 | * @returns The listener function to execute when a message is received from a worker. |
be0676b3 APA |
379 | */ |
380 | protected workerListener (): (message: MessageValue<Response>) => void { | |
4a6952ff | 381 | return message => { |
bdacc2d2 JB |
382 | if (message.id !== undefined) { |
383 | const promise = this.promiseMap.get(message.id) | |
384 | if (promise !== undefined) { | |
78cea37e | 385 | if (message.error != null) { |
a05c10de JB |
386 | promise.reject(message.error) |
387 | } else { | |
388 | promise.resolve(message.data as Response) | |
389 | } | |
bf9549ae | 390 | this.afterPromiseWorkerResponseHook(message, promise) |
be0676b3 APA |
391 | this.promiseMap.delete(message.id) |
392 | } | |
393 | } | |
394 | } | |
be0676b3 | 395 | } |
7c0ba920 | 396 | |
78cea37e JB |
397 | private async internalExecute ( |
398 | worker: Worker, | |
b4e75778 | 399 | messageId: string |
78cea37e JB |
400 | ): Promise<Response> { |
401 | this.beforePromiseWorkerResponseHook(worker) | |
402 | return await new Promise<Response>((resolve, reject) => { | |
403 | this.promiseMap.set(messageId, { resolve, reject, worker }) | |
404 | }) | |
405 | } | |
406 | ||
7c0ba920 | 407 | private checkAndEmitBusy (): void { |
78cea37e | 408 | if (this.opts.enableEvents === true && this.busy) { |
7c0ba920 JB |
409 | this.emitter?.emit('busy') |
410 | } | |
411 | } | |
bf9549ae JB |
412 | |
413 | /** | |
10fcfaf4 | 414 | * Increases the number of tasks that the given worker has applied. |
bf9549ae | 415 | * |
38e795c1 | 416 | * @param worker - Worker which running tasks is increased. |
bf9549ae JB |
417 | */ |
418 | private increaseWorkerRunningTasks (worker: Worker): void { | |
419 | this.stepWorkerRunningTasks(worker, 1) | |
420 | } | |
421 | ||
422 | /** | |
10fcfaf4 | 423 | * Decreases the number of tasks that the given worker has applied. |
bf9549ae | 424 | * |
38e795c1 | 425 | * @param worker - Worker which running tasks is decreased. |
bf9549ae JB |
426 | */ |
427 | private decreaseWorkerRunningTasks (worker: Worker): void { | |
428 | this.stepWorkerRunningTasks(worker, -1) | |
429 | } | |
430 | ||
ffcbbad8 | 431 | /** |
b4e75778 | 432 | * Gets tasks usage of the given worker. |
ffcbbad8 JB |
433 | * |
434 | * @param worker - Worker which tasks usage is returned. | |
435 | */ | |
436 | private getWorkerTasksUsage (worker: Worker): TasksUsage | undefined { | |
437 | if (this.checkWorker(worker)) { | |
438 | const workerKey = this.getWorkerKey(worker) as number | |
439 | const workerEntry = this.workers.get(workerKey) as WorkerType<Worker> | |
440 | return workerEntry.tasksUsage | |
441 | } | |
442 | } | |
443 | ||
bf9549ae | 444 | /** |
10fcfaf4 | 445 | * Steps the number of tasks that the given worker has applied. |
bf9549ae | 446 | * |
38e795c1 JB |
447 | * @param worker - Worker which running tasks are stepped. |
448 | * @param step - Number of running tasks step. | |
bf9549ae JB |
449 | */ |
450 | private stepWorkerRunningTasks (worker: Worker, step: number): void { | |
ffcbbad8 JB |
451 | // prettier-ignore |
452 | (this.getWorkerTasksUsage(worker) as TasksUsage).running += step | |
bf9549ae JB |
453 | } |
454 | ||
455 | /** | |
10fcfaf4 | 456 | * Steps the number of tasks that the given worker has run. |
bf9549ae | 457 | * |
38e795c1 JB |
458 | * @param worker - Worker which has run tasks. |
459 | * @param step - Number of run tasks step. | |
bf9549ae | 460 | */ |
10fcfaf4 | 461 | private stepWorkerRunTasks (worker: Worker, step: number): void { |
ffcbbad8 JB |
462 | // prettier-ignore |
463 | (this.getWorkerTasksUsage(worker) as TasksUsage).run += step | |
bf9549ae JB |
464 | } |
465 | ||
466 | /** | |
23135a89 | 467 | * Updates tasks runtime for the given worker. |
bf9549ae | 468 | * |
38e795c1 JB |
469 | * @param worker - Worker which run the task. |
470 | * @param taskRunTime - Worker task runtime. | |
bf9549ae JB |
471 | */ |
472 | private updateWorkerTasksRunTime ( | |
473 | worker: Worker, | |
474 | taskRunTime: number | undefined | |
10fcfaf4 JB |
475 | ): void { |
476 | if ( | |
477 | this.workerChoiceStrategyContext.getWorkerChoiceStrategy() | |
ffcbbad8 | 478 | .requiredStatistics.runTime |
10fcfaf4 | 479 | ) { |
ffcbbad8 JB |
480 | const workerTasksUsage = this.getWorkerTasksUsage(worker) as TasksUsage |
481 | workerTasksUsage.runTime += taskRunTime ?? 0 | |
482 | if (workerTasksUsage.run !== 0) { | |
483 | workerTasksUsage.avgRunTime = | |
484 | workerTasksUsage.runTime / workerTasksUsage.run | |
10fcfaf4 | 485 | } |
a05c10de JB |
486 | } |
487 | } | |
488 | ||
489 | /** | |
ffcbbad8 | 490 | * Sets the given worker. |
ea7a90d3 | 491 | * |
ffcbbad8 | 492 | * @param workerKey - The worker key. |
38e795c1 | 493 | * @param worker - The worker. |
ffcbbad8 | 494 | * @param tasksUsage - The worker tasks usage. |
ea7a90d3 | 495 | */ |
ffcbbad8 JB |
496 | private setWorker ( |
497 | workerKey: number, | |
498 | worker: Worker, | |
499 | tasksUsage: TasksUsage | |
500 | ): void { | |
501 | this.workers.set(workerKey, { | |
502 | worker, | |
503 | tasksUsage | |
ea7a90d3 JB |
504 | }) |
505 | } | |
506 | ||
bf9549ae | 507 | /** |
ffcbbad8 | 508 | * Checks if the given worker is registered in the pool. |
ea7a90d3 | 509 | * |
ffcbbad8 JB |
510 | * @param worker - Worker to check. |
511 | * @returns `true` if the worker is registered in the pool. | |
ea7a90d3 | 512 | */ |
ffcbbad8 JB |
513 | private checkWorker (worker: Worker): boolean { |
514 | if (this.getWorkerKey(worker) == null) { | |
515 | throw new Error('Worker could not be found in the pool') | |
516 | } | |
517 | return true | |
ea7a90d3 | 518 | } |
c97c7edb | 519 | } |