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be0676b3 APA |
1 | import type { |
2 | MessageValue, | |
3 | PromiseWorkerResponseWrapper | |
4 | } from '../utility-types' | |
78cea37e | 5 | import { EMPTY_FUNCTION, EMPTY_LITERAL } from '../utils' |
4a6952ff | 6 | import { isKillBehavior, KillBehaviors } from '../worker/worker-options' |
bdaf31cd | 7 | import type { PoolOptions } from './pool' |
b4904890 | 8 | import { PoolEmitter } from './pool' |
bf9549ae | 9 | import type { IPoolInternal, TasksUsage } from './pool-internal' |
b4904890 | 10 | import { PoolType } from './pool-internal' |
ea7a90d3 | 11 | import type { IPoolWorker } from './pool-worker' |
a35560ba S |
12 | import { |
13 | WorkerChoiceStrategies, | |
bdaf31cd JB |
14 | WorkerChoiceStrategy |
15 | } from './selection-strategies/selection-strategies-types' | |
16 | import { WorkerChoiceStrategyContext } from './selection-strategies/worker-choice-strategy-context' | |
c97c7edb | 17 | |
729c563d | 18 | /** |
ea7a90d3 | 19 | * Base class that implements some shared logic for all poolifier pools. |
729c563d | 20 | * |
38e795c1 JB |
21 | * @typeParam Worker - Type of worker which manages this pool. |
22 | * @typeParam Data - Type of data sent to the worker. This can only be serializable data. | |
23 | * @typeParam Response - Type of response of execution. This can only be serializable data. | |
729c563d | 24 | */ |
c97c7edb | 25 | export abstract class AbstractPool< |
ea7a90d3 | 26 | Worker extends IPoolWorker, |
d3c8a1a8 S |
27 | Data = unknown, |
28 | Response = unknown | |
9b2fdd9f | 29 | > implements IPoolInternal<Worker, Data, Response> { |
38e795c1 | 30 | /** {@inheritDoc} */ |
4a6952ff JB |
31 | public readonly workers: Worker[] = [] |
32 | ||
38e795c1 | 33 | /** {@inheritDoc} */ |
ea7a90d3 | 34 | public readonly workersTasksUsage: Map<Worker, TasksUsage> = new Map< |
78cea37e JB |
35 | Worker, |
36 | TasksUsage | |
bf9549ae | 37 | >() |
4a6952ff | 38 | |
38e795c1 | 39 | /** {@inheritDoc} */ |
7c0ba920 JB |
40 | public readonly emitter?: PoolEmitter |
41 | ||
be0676b3 APA |
42 | /** |
43 | * The promise map. | |
44 | * | |
e088a00c | 45 | * - `key`: This is the message Id of each submitted task. |
be0676b3 APA |
46 | * - `value`: An object that contains the worker, the resolve function and the reject function. |
47 | * | |
48 | * When we receive a message from the worker we get a map entry and resolve/reject the promise based on the message. | |
49 | */ | |
50 | protected promiseMap: Map< | |
78cea37e JB |
51 | number, |
52 | PromiseWorkerResponseWrapper<Worker, Response> | |
be0676b3 APA |
53 | > = new Map<number, PromiseWorkerResponseWrapper<Worker, Response>>() |
54 | ||
729c563d | 55 | /** |
e088a00c | 56 | * Id of the next message. |
729c563d | 57 | */ |
280c2a77 | 58 | protected nextMessageId: number = 0 |
c97c7edb | 59 | |
a35560ba S |
60 | /** |
61 | * Worker choice strategy instance implementing the worker choice algorithm. | |
62 | * | |
63 | * Default to a strategy implementing a round robin algorithm. | |
64 | */ | |
65 | protected workerChoiceStrategyContext: WorkerChoiceStrategyContext< | |
78cea37e JB |
66 | Worker, |
67 | Data, | |
68 | Response | |
a35560ba S |
69 | > |
70 | ||
729c563d S |
71 | /** |
72 | * Constructs a new poolifier pool. | |
73 | * | |
38e795c1 JB |
74 | * @param numberOfWorkers - Number of workers that this pool should manage. |
75 | * @param filePath - Path to the worker-file. | |
76 | * @param opts - Options for the pool. | |
729c563d | 77 | */ |
c97c7edb | 78 | public constructor ( |
5c5a1fb7 | 79 | public readonly numberOfWorkers: number, |
c97c7edb | 80 | public readonly filePath: string, |
1927ee67 | 81 | public readonly opts: PoolOptions<Worker> |
c97c7edb | 82 | ) { |
78cea37e | 83 | if (!this.isMain()) { |
c97c7edb S |
84 | throw new Error('Cannot start a pool from a worker!') |
85 | } | |
8d3782fa | 86 | this.checkNumberOfWorkers(this.numberOfWorkers) |
c510fea7 | 87 | this.checkFilePath(this.filePath) |
7c0ba920 | 88 | this.checkPoolOptions(this.opts) |
c97c7edb S |
89 | this.setupHook() |
90 | ||
5c5a1fb7 | 91 | for (let i = 1; i <= this.numberOfWorkers; i++) { |
280c2a77 | 92 | this.createAndSetupWorker() |
c97c7edb S |
93 | } |
94 | ||
6bd72cd0 | 95 | if (this.opts.enableEvents === true) { |
7c0ba920 JB |
96 | this.emitter = new PoolEmitter() |
97 | } | |
a35560ba S |
98 | this.workerChoiceStrategyContext = new WorkerChoiceStrategyContext( |
99 | this, | |
4a6952ff JB |
100 | () => { |
101 | const workerCreated = this.createAndSetupWorker() | |
f3636726 | 102 | this.registerWorkerMessageListener(workerCreated, message => { |
4a6952ff JB |
103 | if ( |
104 | isKillBehavior(KillBehaviors.HARD, message.kill) || | |
bdaf31cd | 105 | this.getWorkerRunningTasks(workerCreated) === 0 |
4a6952ff JB |
106 | ) { |
107 | // Kill received from the worker, means that no new tasks are submitted to that worker for a while ( > maxInactiveTime) | |
f44936ae | 108 | void (this.destroyWorker(workerCreated) as Promise<void>) |
4a6952ff JB |
109 | } |
110 | }) | |
111 | return workerCreated | |
112 | }, | |
e843b904 | 113 | this.opts.workerChoiceStrategy |
a35560ba | 114 | ) |
c97c7edb S |
115 | } |
116 | ||
a35560ba | 117 | private checkFilePath (filePath: string): void { |
78cea37e | 118 | if (filePath == null || filePath.length === 0) { |
c510fea7 APA |
119 | throw new Error('Please specify a file with a worker implementation') |
120 | } | |
121 | } | |
122 | ||
8d3782fa JB |
123 | private checkNumberOfWorkers (numberOfWorkers: number): void { |
124 | if (numberOfWorkers == null) { | |
125 | throw new Error( | |
126 | 'Cannot instantiate a pool without specifying the number of workers' | |
127 | ) | |
78cea37e | 128 | } else if (!Number.isSafeInteger(numberOfWorkers)) { |
473c717a | 129 | throw new TypeError( |
8d3782fa JB |
130 | 'Cannot instantiate a pool with a non integer number of workers' |
131 | ) | |
132 | } else if (numberOfWorkers < 0) { | |
473c717a | 133 | throw new RangeError( |
8d3782fa JB |
134 | 'Cannot instantiate a pool with a negative number of workers' |
135 | ) | |
7c0ba920 | 136 | } else if (this.type === PoolType.FIXED && numberOfWorkers === 0) { |
8d3782fa JB |
137 | throw new Error('Cannot instantiate a fixed pool with no worker') |
138 | } | |
139 | } | |
140 | ||
7c0ba920 | 141 | private checkPoolOptions (opts: PoolOptions<Worker>): void { |
e843b904 JB |
142 | this.opts.workerChoiceStrategy = |
143 | opts.workerChoiceStrategy ?? WorkerChoiceStrategies.ROUND_ROBIN | |
7c0ba920 JB |
144 | this.opts.enableEvents = opts.enableEvents ?? true |
145 | } | |
146 | ||
38e795c1 | 147 | /** {@inheritDoc} */ |
7c0ba920 JB |
148 | public abstract get type (): PoolType |
149 | ||
38e795c1 | 150 | /** {@inheritDoc} */ |
7c0ba920 JB |
151 | public get numberOfRunningTasks (): number { |
152 | return this.promiseMap.size | |
a35560ba S |
153 | } |
154 | ||
38e795c1 | 155 | /** {@inheritDoc} */ |
bf9549ae JB |
156 | public getWorkerIndex (worker: Worker): number { |
157 | return this.workers.indexOf(worker) | |
158 | } | |
159 | ||
38e795c1 | 160 | /** {@inheritDoc} */ |
bdaf31cd | 161 | public getWorkerRunningTasks (worker: Worker): number | undefined { |
bf9549ae | 162 | return this.workersTasksUsage.get(worker)?.running |
bdaf31cd JB |
163 | } |
164 | ||
38e795c1 | 165 | /** {@inheritDoc} */ |
bf9549ae JB |
166 | public getWorkerAverageTasksRunTime (worker: Worker): number | undefined { |
167 | return this.workersTasksUsage.get(worker)?.avgRunTime | |
bdaf31cd JB |
168 | } |
169 | ||
38e795c1 | 170 | /** {@inheritDoc} */ |
a35560ba S |
171 | public setWorkerChoiceStrategy ( |
172 | workerChoiceStrategy: WorkerChoiceStrategy | |
173 | ): void { | |
b98ec2e6 | 174 | this.opts.workerChoiceStrategy = workerChoiceStrategy |
ea7a90d3 JB |
175 | for (const worker of this.workers) { |
176 | this.resetWorkerTasksUsage(worker) | |
177 | } | |
a35560ba S |
178 | this.workerChoiceStrategyContext.setWorkerChoiceStrategy( |
179 | workerChoiceStrategy | |
180 | ) | |
181 | } | |
182 | ||
38e795c1 | 183 | /** {@inheritDoc} */ |
7c0ba920 JB |
184 | public abstract get busy (): boolean |
185 | ||
186 | protected internalGetBusyStatus (): boolean { | |
187 | return ( | |
188 | this.numberOfRunningTasks >= this.numberOfWorkers && | |
bdaf31cd | 189 | this.findFreeWorker() === false |
7c0ba920 JB |
190 | ) |
191 | } | |
192 | ||
38e795c1 | 193 | /** {@inheritDoc} */ |
bdaf31cd JB |
194 | public findFreeWorker (): Worker | false { |
195 | for (const worker of this.workers) { | |
196 | if (this.getWorkerRunningTasks(worker) === 0) { | |
197 | // A worker is free, return the matching worker | |
198 | return worker | |
7c0ba920 JB |
199 | } |
200 | } | |
201 | return false | |
202 | } | |
203 | ||
38e795c1 | 204 | /** {@inheritDoc} */ |
78cea37e | 205 | public async execute (data: Data): Promise<Response> { |
280c2a77 S |
206 | // Configure worker to handle message with the specified task |
207 | const worker = this.chooseWorker() | |
a05c10de | 208 | const res = this.internalExecute(worker, this.nextMessageId) |
14916bf9 | 209 | this.checkAndEmitBusy() |
a05c10de | 210 | this.sendToWorker(worker, { |
78cea37e | 211 | data: data ?? (EMPTY_LITERAL as Data), |
a05c10de JB |
212 | id: this.nextMessageId |
213 | }) | |
214 | ++this.nextMessageId | |
78cea37e | 215 | // eslint-disable-next-line @typescript-eslint/return-await |
280c2a77 S |
216 | return res |
217 | } | |
c97c7edb | 218 | |
38e795c1 | 219 | /** {@inheritDoc} */ |
c97c7edb | 220 | public async destroy (): Promise<void> { |
45dbbb14 | 221 | await Promise.all(this.workers.map(worker => this.destroyWorker(worker))) |
c97c7edb S |
222 | } |
223 | ||
4a6952ff | 224 | /** |
675bb809 | 225 | * Shutdowns given worker. |
4a6952ff | 226 | * |
38e795c1 | 227 | * @param worker - A worker within `workers`. |
4a6952ff JB |
228 | */ |
229 | protected abstract destroyWorker (worker: Worker): void | Promise<void> | |
c97c7edb | 230 | |
729c563d | 231 | /** |
280c2a77 S |
232 | * Setup hook that can be overridden by a Poolifier pool implementation |
233 | * to run code before workers are created in the abstract constructor. | |
729c563d | 234 | */ |
280c2a77 S |
235 | protected setupHook (): void { |
236 | // Can be overridden | |
237 | } | |
c97c7edb | 238 | |
729c563d | 239 | /** |
280c2a77 S |
240 | * Should return whether the worker is the main worker or not. |
241 | */ | |
242 | protected abstract isMain (): boolean | |
243 | ||
244 | /** | |
bf9549ae JB |
245 | * Hook executed before the worker task promise resolution. |
246 | * Can be overridden. | |
729c563d | 247 | * |
38e795c1 | 248 | * @param worker - The worker. |
729c563d | 249 | */ |
bf9549ae JB |
250 | protected beforePromiseWorkerResponseHook (worker: Worker): void { |
251 | this.increaseWorkerRunningTasks(worker) | |
c97c7edb S |
252 | } |
253 | ||
c01733f1 | 254 | /** |
bf9549ae JB |
255 | * Hook executed after the worker task promise resolution. |
256 | * Can be overridden. | |
c01733f1 | 257 | * |
38e795c1 JB |
258 | * @param message - The received message. |
259 | * @param promise - The Promise response. | |
c01733f1 | 260 | */ |
bf9549ae JB |
261 | protected afterPromiseWorkerResponseHook ( |
262 | message: MessageValue<Response>, | |
263 | promise: PromiseWorkerResponseWrapper<Worker, Response> | |
264 | ): void { | |
265 | this.decreaseWorkerRunningTasks(promise.worker) | |
266 | this.stepWorkerRunTasks(promise.worker, 1) | |
267 | this.updateWorkerTasksRunTime(promise.worker, message.taskRunTime) | |
c01733f1 | 268 | } |
269 | ||
729c563d S |
270 | /** |
271 | * Removes the given worker from the pool. | |
272 | * | |
38e795c1 | 273 | * @param worker - The worker that will be removed. |
729c563d | 274 | */ |
f2fdaa86 JB |
275 | protected removeWorker (worker: Worker): void { |
276 | // Clean worker from data structure | |
bdaf31cd | 277 | this.workers.splice(this.getWorkerIndex(worker), 1) |
10fcfaf4 | 278 | this.removeWorkerTasksUsage(worker) |
f2fdaa86 JB |
279 | } |
280 | ||
280c2a77 | 281 | /** |
675bb809 | 282 | * Chooses a worker for the next task. |
280c2a77 S |
283 | * |
284 | * The default implementation uses a round robin algorithm to distribute the load. | |
285 | * | |
286 | * @returns Worker. | |
287 | */ | |
288 | protected chooseWorker (): Worker { | |
a35560ba | 289 | return this.workerChoiceStrategyContext.execute() |
c97c7edb S |
290 | } |
291 | ||
280c2a77 | 292 | /** |
675bb809 | 293 | * Sends a message to the given worker. |
280c2a77 | 294 | * |
38e795c1 JB |
295 | * @param worker - The worker which should receive the message. |
296 | * @param message - The message. | |
280c2a77 S |
297 | */ |
298 | protected abstract sendToWorker ( | |
299 | worker: Worker, | |
300 | message: MessageValue<Data> | |
301 | ): void | |
302 | ||
4a6952ff | 303 | /** |
bdede008 | 304 | * Registers a listener callback on a given worker. |
4a6952ff | 305 | * |
38e795c1 JB |
306 | * @param worker - The worker which should register a listener. |
307 | * @param listener - The message listener callback. | |
4a6952ff JB |
308 | */ |
309 | protected abstract registerWorkerMessageListener< | |
4f7fa42a | 310 | Message extends Data | Response |
78cea37e | 311 | >(worker: Worker, listener: (message: MessageValue<Message>) => void): void |
c97c7edb | 312 | |
729c563d S |
313 | /** |
314 | * Returns a newly created worker. | |
315 | */ | |
280c2a77 | 316 | protected abstract createWorker (): Worker |
c97c7edb | 317 | |
729c563d S |
318 | /** |
319 | * Function that can be hooked up when a worker has been newly created and moved to the workers registry. | |
320 | * | |
38e795c1 | 321 | * Can be used to update the `maxListeners` or binding the `main-worker`\<-\>`worker` connection if not bind by default. |
729c563d | 322 | * |
38e795c1 | 323 | * @param worker - The newly created worker. |
729c563d | 324 | */ |
280c2a77 | 325 | protected abstract afterWorkerSetup (worker: Worker): void |
c97c7edb | 326 | |
4a6952ff JB |
327 | /** |
328 | * Creates a new worker for this pool and sets it up completely. | |
329 | * | |
330 | * @returns New, completely set up worker. | |
331 | */ | |
332 | protected createAndSetupWorker (): Worker { | |
bdacc2d2 | 333 | const worker = this.createWorker() |
280c2a77 | 334 | |
35cf1c03 | 335 | worker.on('message', this.opts.messageHandler ?? EMPTY_FUNCTION) |
a35560ba S |
336 | worker.on('error', this.opts.errorHandler ?? EMPTY_FUNCTION) |
337 | worker.on('online', this.opts.onlineHandler ?? EMPTY_FUNCTION) | |
338 | worker.on('exit', this.opts.exitHandler ?? EMPTY_FUNCTION) | |
a974afa6 JB |
339 | worker.once('exit', () => { |
340 | this.removeWorker(worker) | |
341 | }) | |
280c2a77 | 342 | |
c97c7edb | 343 | this.workers.push(worker) |
280c2a77 | 344 | |
bf9549ae | 345 | // Init worker tasks usage map |
ea7a90d3 | 346 | this.initWorkerTasksUsage(worker) |
280c2a77 S |
347 | |
348 | this.afterWorkerSetup(worker) | |
349 | ||
c97c7edb S |
350 | return worker |
351 | } | |
be0676b3 APA |
352 | |
353 | /** | |
354 | * This function is the listener registered for each worker. | |
355 | * | |
bdacc2d2 | 356 | * @returns The listener function to execute when a message is received from a worker. |
be0676b3 APA |
357 | */ |
358 | protected workerListener (): (message: MessageValue<Response>) => void { | |
4a6952ff | 359 | return message => { |
bdacc2d2 JB |
360 | if (message.id !== undefined) { |
361 | const promise = this.promiseMap.get(message.id) | |
362 | if (promise !== undefined) { | |
78cea37e | 363 | if (message.error != null) { |
a05c10de JB |
364 | promise.reject(message.error) |
365 | } else { | |
366 | promise.resolve(message.data as Response) | |
367 | } | |
bf9549ae | 368 | this.afterPromiseWorkerResponseHook(message, promise) |
be0676b3 APA |
369 | this.promiseMap.delete(message.id) |
370 | } | |
371 | } | |
372 | } | |
be0676b3 | 373 | } |
7c0ba920 | 374 | |
78cea37e JB |
375 | private async internalExecute ( |
376 | worker: Worker, | |
377 | messageId: number | |
378 | ): Promise<Response> { | |
379 | this.beforePromiseWorkerResponseHook(worker) | |
380 | return await new Promise<Response>((resolve, reject) => { | |
381 | this.promiseMap.set(messageId, { resolve, reject, worker }) | |
382 | }) | |
383 | } | |
384 | ||
7c0ba920 | 385 | private checkAndEmitBusy (): void { |
78cea37e | 386 | if (this.opts.enableEvents === true && this.busy) { |
7c0ba920 JB |
387 | this.emitter?.emit('busy') |
388 | } | |
389 | } | |
bf9549ae JB |
390 | |
391 | /** | |
10fcfaf4 | 392 | * Increases the number of tasks that the given worker has applied. |
bf9549ae | 393 | * |
38e795c1 | 394 | * @param worker - Worker which running tasks is increased. |
bf9549ae JB |
395 | */ |
396 | private increaseWorkerRunningTasks (worker: Worker): void { | |
397 | this.stepWorkerRunningTasks(worker, 1) | |
398 | } | |
399 | ||
400 | /** | |
10fcfaf4 | 401 | * Decreases the number of tasks that the given worker has applied. |
bf9549ae | 402 | * |
38e795c1 | 403 | * @param worker - Worker which running tasks is decreased. |
bf9549ae JB |
404 | */ |
405 | private decreaseWorkerRunningTasks (worker: Worker): void { | |
406 | this.stepWorkerRunningTasks(worker, -1) | |
407 | } | |
408 | ||
409 | /** | |
10fcfaf4 | 410 | * Steps the number of tasks that the given worker has applied. |
bf9549ae | 411 | * |
38e795c1 JB |
412 | * @param worker - Worker which running tasks are stepped. |
413 | * @param step - Number of running tasks step. | |
bf9549ae JB |
414 | */ |
415 | private stepWorkerRunningTasks (worker: Worker, step: number): void { | |
78cea37e | 416 | if (this.checkWorkerTasksUsage(worker)) { |
a05c10de | 417 | const tasksUsage = this.workersTasksUsage.get(worker) as TasksUsage |
bf9549ae JB |
418 | tasksUsage.running = tasksUsage.running + step |
419 | this.workersTasksUsage.set(worker, tasksUsage) | |
bf9549ae JB |
420 | } |
421 | } | |
422 | ||
423 | /** | |
10fcfaf4 | 424 | * Steps the number of tasks that the given worker has run. |
bf9549ae | 425 | * |
38e795c1 JB |
426 | * @param worker - Worker which has run tasks. |
427 | * @param step - Number of run tasks step. | |
bf9549ae | 428 | */ |
10fcfaf4 | 429 | private stepWorkerRunTasks (worker: Worker, step: number): void { |
78cea37e | 430 | if (this.checkWorkerTasksUsage(worker)) { |
a05c10de | 431 | const tasksUsage = this.workersTasksUsage.get(worker) as TasksUsage |
bf9549ae JB |
432 | tasksUsage.run = tasksUsage.run + step |
433 | this.workersTasksUsage.set(worker, tasksUsage) | |
bf9549ae JB |
434 | } |
435 | } | |
436 | ||
437 | /** | |
23135a89 | 438 | * Updates tasks runtime for the given worker. |
bf9549ae | 439 | * |
38e795c1 JB |
440 | * @param worker - Worker which run the task. |
441 | * @param taskRunTime - Worker task runtime. | |
bf9549ae JB |
442 | */ |
443 | private updateWorkerTasksRunTime ( | |
444 | worker: Worker, | |
445 | taskRunTime: number | undefined | |
10fcfaf4 JB |
446 | ): void { |
447 | if ( | |
448 | this.workerChoiceStrategyContext.getWorkerChoiceStrategy() | |
78cea37e JB |
449 | .requiredStatistics.runTime && |
450 | this.checkWorkerTasksUsage(worker) | |
10fcfaf4 | 451 | ) { |
a05c10de JB |
452 | const tasksUsage = this.workersTasksUsage.get(worker) as TasksUsage |
453 | tasksUsage.runTime += taskRunTime ?? 0 | |
454 | if (tasksUsage.run !== 0) { | |
455 | tasksUsage.avgRunTime = tasksUsage.runTime / tasksUsage.run | |
10fcfaf4 | 456 | } |
a05c10de JB |
457 | this.workersTasksUsage.set(worker, tasksUsage) |
458 | } | |
459 | } | |
460 | ||
461 | /** | |
462 | * Checks if the given worker is registered in the workers tasks usage map. | |
463 | * | |
38e795c1 | 464 | * @param worker - Worker to check. |
a05c10de JB |
465 | * @returns `true` if the worker is registered in the workers tasks usage map. `false` otherwise. |
466 | */ | |
467 | private checkWorkerTasksUsage (worker: Worker): boolean { | |
468 | const hasTasksUsage = this.workersTasksUsage.has(worker) | |
78cea37e | 469 | if (!hasTasksUsage) { |
a05c10de | 470 | throw new Error('Worker could not be found in workers tasks usage map') |
bf9549ae | 471 | } |
a05c10de | 472 | return hasTasksUsage |
bf9549ae JB |
473 | } |
474 | ||
ea7a90d3 JB |
475 | /** |
476 | * Initializes tasks usage statistics. | |
477 | * | |
38e795c1 | 478 | * @param worker - The worker. |
ea7a90d3 | 479 | */ |
e336fea6 | 480 | private initWorkerTasksUsage (worker: Worker): void { |
ea7a90d3 JB |
481 | this.workersTasksUsage.set(worker, { |
482 | run: 0, | |
483 | running: 0, | |
484 | runTime: 0, | |
485 | avgRunTime: 0 | |
486 | }) | |
487 | } | |
488 | ||
bf9549ae | 489 | /** |
10fcfaf4 | 490 | * Removes worker tasks usage statistics. |
bf9549ae | 491 | * |
38e795c1 | 492 | * @param worker - The worker. |
bf9549ae | 493 | */ |
10fcfaf4 | 494 | private removeWorkerTasksUsage (worker: Worker): void { |
bf9549ae JB |
495 | this.workersTasksUsage.delete(worker) |
496 | } | |
ea7a90d3 JB |
497 | |
498 | /** | |
499 | * Resets worker tasks usage statistics. | |
500 | * | |
38e795c1 | 501 | * @param worker - The worker. |
ea7a90d3 JB |
502 | */ |
503 | private resetWorkerTasksUsage (worker: Worker): void { | |
504 | this.removeWorkerTasksUsage(worker) | |
505 | this.initWorkerTasksUsage(worker) | |
506 | } | |
c97c7edb | 507 | } |