Commit | Line | Data |
---|---|---|
fc3e6586 | 1 | import crypto from 'node:crypto' |
62c15a68 | 2 | import { performance } from 'node:perf_hooks' |
2740a743 | 3 | import type { MessageValue, PromiseResponseWrapper } from '../utility-types' |
bbeadd16 JB |
4 | import { |
5 | DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, | |
6 | EMPTY_FUNCTION, | |
0d80593b | 7 | isPlainObject, |
bbeadd16 JB |
8 | median |
9 | } from '../utils' | |
34a0cfab | 10 | import { KillBehaviors, isKillBehavior } from '../worker/worker-options' |
65d7a1c9 | 11 | import { CircularArray } from '../circular-array' |
29ee7e9a | 12 | import { Queue } from '../queue' |
c4855468 | 13 | import { |
65d7a1c9 | 14 | type IPool, |
7c5a1080 | 15 | PoolEmitter, |
c4855468 | 16 | PoolEvents, |
6b27d407 | 17 | type PoolInfo, |
c4855468 | 18 | type PoolOptions, |
6b27d407 JB |
19 | type PoolType, |
20 | PoolTypes, | |
184855e6 | 21 | type TasksQueueOptions, |
83fa0a36 JB |
22 | type WorkerType, |
23 | WorkerTypes | |
c4855468 | 24 | } from './pool' |
e102732c JB |
25 | import type { |
26 | IWorker, | |
27 | MessageHandler, | |
28 | Task, | |
29 | WorkerNode, | |
30 | WorkerUsage | |
31 | } from './worker' | |
a35560ba | 32 | import { |
f0d7f803 | 33 | Measurements, |
a35560ba | 34 | WorkerChoiceStrategies, |
a20f0ba5 JB |
35 | type WorkerChoiceStrategy, |
36 | type WorkerChoiceStrategyOptions | |
bdaf31cd JB |
37 | } from './selection-strategies/selection-strategies-types' |
38 | import { WorkerChoiceStrategyContext } from './selection-strategies/worker-choice-strategy-context' | |
c97c7edb | 39 | |
729c563d | 40 | /** |
ea7a90d3 | 41 | * Base class that implements some shared logic for all poolifier pools. |
729c563d | 42 | * |
38e795c1 | 43 | * @typeParam Worker - Type of worker which manages this pool. |
e102732c JB |
44 | * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. |
45 | * @typeParam Response - Type of execution response. This can only be structured-cloneable data. | |
729c563d | 46 | */ |
c97c7edb | 47 | export abstract class AbstractPool< |
f06e48d8 | 48 | Worker extends IWorker, |
d3c8a1a8 S |
49 | Data = unknown, |
50 | Response = unknown | |
c4855468 | 51 | > implements IPool<Worker, Data, Response> { |
afc003b2 | 52 | /** @inheritDoc */ |
f06e48d8 | 53 | public readonly workerNodes: Array<WorkerNode<Worker, Data>> = [] |
4a6952ff | 54 | |
afc003b2 | 55 | /** @inheritDoc */ |
7c0ba920 JB |
56 | public readonly emitter?: PoolEmitter |
57 | ||
be0676b3 | 58 | /** |
a3445496 | 59 | * The execution response promise map. |
be0676b3 | 60 | * |
2740a743 | 61 | * - `key`: The message id of each submitted task. |
a3445496 | 62 | * - `value`: An object that contains the worker, the execution response promise resolve and reject callbacks. |
be0676b3 | 63 | * |
a3445496 | 64 | * When we receive a message from the worker, we get a map entry with the promise resolve/reject bound to the message id. |
be0676b3 | 65 | */ |
c923ce56 JB |
66 | protected promiseResponseMap: Map< |
67 | string, | |
68 | PromiseResponseWrapper<Worker, Response> | |
69 | > = new Map<string, PromiseResponseWrapper<Worker, Response>>() | |
c97c7edb | 70 | |
a35560ba | 71 | /** |
51fe3d3c | 72 | * Worker choice strategy context referencing a worker choice algorithm implementation. |
a35560ba S |
73 | */ |
74 | protected workerChoiceStrategyContext: WorkerChoiceStrategyContext< | |
78cea37e JB |
75 | Worker, |
76 | Data, | |
77 | Response | |
a35560ba S |
78 | > |
79 | ||
729c563d S |
80 | /** |
81 | * Constructs a new poolifier pool. | |
82 | * | |
38e795c1 | 83 | * @param numberOfWorkers - Number of workers that this pool should manage. |
029715f0 | 84 | * @param filePath - Path to the worker file. |
38e795c1 | 85 | * @param opts - Options for the pool. |
729c563d | 86 | */ |
c97c7edb | 87 | public constructor ( |
b4213b7f JB |
88 | protected readonly numberOfWorkers: number, |
89 | protected readonly filePath: string, | |
90 | protected readonly opts: PoolOptions<Worker> | |
c97c7edb | 91 | ) { |
78cea37e | 92 | if (!this.isMain()) { |
c97c7edb S |
93 | throw new Error('Cannot start a pool from a worker!') |
94 | } | |
8d3782fa | 95 | this.checkNumberOfWorkers(this.numberOfWorkers) |
c510fea7 | 96 | this.checkFilePath(this.filePath) |
7c0ba920 | 97 | this.checkPoolOptions(this.opts) |
1086026a | 98 | |
7254e419 JB |
99 | this.chooseWorkerNode = this.chooseWorkerNode.bind(this) |
100 | this.executeTask = this.executeTask.bind(this) | |
101 | this.enqueueTask = this.enqueueTask.bind(this) | |
102 | this.checkAndEmitEvents = this.checkAndEmitEvents.bind(this) | |
1086026a | 103 | |
6bd72cd0 | 104 | if (this.opts.enableEvents === true) { |
7c0ba920 JB |
105 | this.emitter = new PoolEmitter() |
106 | } | |
d59df138 JB |
107 | this.workerChoiceStrategyContext = new WorkerChoiceStrategyContext< |
108 | Worker, | |
109 | Data, | |
110 | Response | |
da309861 JB |
111 | >( |
112 | this, | |
113 | this.opts.workerChoiceStrategy, | |
114 | this.opts.workerChoiceStrategyOptions | |
115 | ) | |
b6b32453 JB |
116 | |
117 | this.setupHook() | |
118 | ||
119 | for (let i = 1; i <= this.numberOfWorkers; i++) { | |
120 | this.createAndSetupWorker() | |
121 | } | |
c97c7edb S |
122 | } |
123 | ||
a35560ba | 124 | private checkFilePath (filePath: string): void { |
ffcbbad8 JB |
125 | if ( |
126 | filePath == null || | |
127 | (typeof filePath === 'string' && filePath.trim().length === 0) | |
128 | ) { | |
c510fea7 APA |
129 | throw new Error('Please specify a file with a worker implementation') |
130 | } | |
131 | } | |
132 | ||
8d3782fa JB |
133 | private checkNumberOfWorkers (numberOfWorkers: number): void { |
134 | if (numberOfWorkers == null) { | |
135 | throw new Error( | |
136 | 'Cannot instantiate a pool without specifying the number of workers' | |
137 | ) | |
78cea37e | 138 | } else if (!Number.isSafeInteger(numberOfWorkers)) { |
473c717a | 139 | throw new TypeError( |
0d80593b | 140 | 'Cannot instantiate a pool with a non safe integer number of workers' |
8d3782fa JB |
141 | ) |
142 | } else if (numberOfWorkers < 0) { | |
473c717a | 143 | throw new RangeError( |
8d3782fa JB |
144 | 'Cannot instantiate a pool with a negative number of workers' |
145 | ) | |
6b27d407 | 146 | } else if (this.type === PoolTypes.fixed && numberOfWorkers === 0) { |
8d3782fa JB |
147 | throw new Error('Cannot instantiate a fixed pool with no worker') |
148 | } | |
149 | } | |
150 | ||
7c0ba920 | 151 | private checkPoolOptions (opts: PoolOptions<Worker>): void { |
0d80593b JB |
152 | if (isPlainObject(opts)) { |
153 | this.opts.workerChoiceStrategy = | |
154 | opts.workerChoiceStrategy ?? WorkerChoiceStrategies.ROUND_ROBIN | |
155 | this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy) | |
156 | this.opts.workerChoiceStrategyOptions = | |
157 | opts.workerChoiceStrategyOptions ?? | |
158 | DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS | |
49be33fe JB |
159 | this.checkValidWorkerChoiceStrategyOptions( |
160 | this.opts.workerChoiceStrategyOptions | |
161 | ) | |
1f68cede | 162 | this.opts.restartWorkerOnError = opts.restartWorkerOnError ?? true |
0d80593b JB |
163 | this.opts.enableEvents = opts.enableEvents ?? true |
164 | this.opts.enableTasksQueue = opts.enableTasksQueue ?? false | |
165 | if (this.opts.enableTasksQueue) { | |
166 | this.checkValidTasksQueueOptions( | |
167 | opts.tasksQueueOptions as TasksQueueOptions | |
168 | ) | |
169 | this.opts.tasksQueueOptions = this.buildTasksQueueOptions( | |
170 | opts.tasksQueueOptions as TasksQueueOptions | |
171 | ) | |
172 | } | |
173 | } else { | |
174 | throw new TypeError('Invalid pool options: must be a plain object') | |
7171d33f | 175 | } |
aee46736 JB |
176 | } |
177 | ||
178 | private checkValidWorkerChoiceStrategy ( | |
179 | workerChoiceStrategy: WorkerChoiceStrategy | |
180 | ): void { | |
181 | if (!Object.values(WorkerChoiceStrategies).includes(workerChoiceStrategy)) { | |
b529c323 | 182 | throw new Error( |
aee46736 | 183 | `Invalid worker choice strategy '${workerChoiceStrategy}'` |
b529c323 JB |
184 | ) |
185 | } | |
7c0ba920 JB |
186 | } |
187 | ||
0d80593b JB |
188 | private checkValidWorkerChoiceStrategyOptions ( |
189 | workerChoiceStrategyOptions: WorkerChoiceStrategyOptions | |
190 | ): void { | |
191 | if (!isPlainObject(workerChoiceStrategyOptions)) { | |
192 | throw new TypeError( | |
193 | 'Invalid worker choice strategy options: must be a plain object' | |
194 | ) | |
195 | } | |
49be33fe JB |
196 | if ( |
197 | workerChoiceStrategyOptions.weights != null && | |
6b27d407 | 198 | Object.keys(workerChoiceStrategyOptions.weights).length !== this.maxSize |
49be33fe JB |
199 | ) { |
200 | throw new Error( | |
201 | 'Invalid worker choice strategy options: must have a weight for each worker node' | |
202 | ) | |
203 | } | |
f0d7f803 JB |
204 | if ( |
205 | workerChoiceStrategyOptions.measurement != null && | |
206 | !Object.values(Measurements).includes( | |
207 | workerChoiceStrategyOptions.measurement | |
208 | ) | |
209 | ) { | |
210 | throw new Error( | |
211 | `Invalid worker choice strategy options: invalid measurement '${workerChoiceStrategyOptions.measurement}'` | |
212 | ) | |
213 | } | |
0d80593b JB |
214 | } |
215 | ||
a20f0ba5 JB |
216 | private checkValidTasksQueueOptions ( |
217 | tasksQueueOptions: TasksQueueOptions | |
218 | ): void { | |
0d80593b JB |
219 | if (tasksQueueOptions != null && !isPlainObject(tasksQueueOptions)) { |
220 | throw new TypeError('Invalid tasks queue options: must be a plain object') | |
221 | } | |
f0d7f803 JB |
222 | if ( |
223 | tasksQueueOptions?.concurrency != null && | |
224 | !Number.isSafeInteger(tasksQueueOptions.concurrency) | |
225 | ) { | |
226 | throw new TypeError( | |
227 | 'Invalid worker tasks concurrency: must be an integer' | |
228 | ) | |
229 | } | |
230 | if ( | |
231 | tasksQueueOptions?.concurrency != null && | |
232 | tasksQueueOptions.concurrency <= 0 | |
233 | ) { | |
a20f0ba5 | 234 | throw new Error( |
f0d7f803 | 235 | `Invalid worker tasks concurrency '${tasksQueueOptions.concurrency}'` |
a20f0ba5 JB |
236 | ) |
237 | } | |
238 | } | |
239 | ||
f59e1027 JB |
240 | private get starting (): boolean { |
241 | return this.workerNodes.some(workerNode => !workerNode.info.started) | |
242 | } | |
243 | ||
244 | private get started (): boolean { | |
245 | return this.workerNodes.some(workerNode => workerNode.info.started) | |
246 | } | |
247 | ||
08f3f44c | 248 | /** @inheritDoc */ |
6b27d407 JB |
249 | public get info (): PoolInfo { |
250 | return { | |
251 | type: this.type, | |
184855e6 | 252 | worker: this.worker, |
6b27d407 JB |
253 | minSize: this.minSize, |
254 | maxSize: this.maxSize, | |
255 | workerNodes: this.workerNodes.length, | |
256 | idleWorkerNodes: this.workerNodes.reduce( | |
257 | (accumulator, workerNode) => | |
f59e1027 | 258 | workerNode.usage.tasks.executing === 0 |
a4e07f72 JB |
259 | ? accumulator + 1 |
260 | : accumulator, | |
6b27d407 JB |
261 | 0 |
262 | ), | |
263 | busyWorkerNodes: this.workerNodes.reduce( | |
264 | (accumulator, workerNode) => | |
f59e1027 | 265 | workerNode.usage.tasks.executing > 0 ? accumulator + 1 : accumulator, |
6b27d407 JB |
266 | 0 |
267 | ), | |
a4e07f72 | 268 | executedTasks: this.workerNodes.reduce( |
6b27d407 | 269 | (accumulator, workerNode) => |
f59e1027 | 270 | accumulator + workerNode.usage.tasks.executed, |
a4e07f72 JB |
271 | 0 |
272 | ), | |
273 | executingTasks: this.workerNodes.reduce( | |
274 | (accumulator, workerNode) => | |
f59e1027 | 275 | accumulator + workerNode.usage.tasks.executing, |
6b27d407 JB |
276 | 0 |
277 | ), | |
278 | queuedTasks: this.workerNodes.reduce( | |
df593701 | 279 | (accumulator, workerNode) => |
f59e1027 | 280 | accumulator + workerNode.usage.tasks.queued, |
6b27d407 JB |
281 | 0 |
282 | ), | |
283 | maxQueuedTasks: this.workerNodes.reduce( | |
284 | (accumulator, workerNode) => | |
f59e1027 | 285 | accumulator + workerNode.usage.tasks.maxQueued, |
6b27d407 | 286 | 0 |
a4e07f72 JB |
287 | ), |
288 | failedTasks: this.workerNodes.reduce( | |
289 | (accumulator, workerNode) => | |
f59e1027 | 290 | accumulator + workerNode.usage.tasks.failed, |
a4e07f72 | 291 | 0 |
6b27d407 JB |
292 | ) |
293 | } | |
294 | } | |
08f3f44c | 295 | |
8881ae32 JB |
296 | /** |
297 | * Pool type. | |
298 | * | |
299 | * If it is `'dynamic'`, it provides the `max` property. | |
300 | */ | |
301 | protected abstract get type (): PoolType | |
302 | ||
184855e6 JB |
303 | /** |
304 | * Gets the worker type. | |
305 | */ | |
306 | protected abstract get worker (): WorkerType | |
307 | ||
c2ade475 | 308 | /** |
6b27d407 | 309 | * Pool minimum size. |
c2ade475 | 310 | */ |
6b27d407 | 311 | protected abstract get minSize (): number |
ff733df7 JB |
312 | |
313 | /** | |
6b27d407 | 314 | * Pool maximum size. |
ff733df7 | 315 | */ |
6b27d407 | 316 | protected abstract get maxSize (): number |
a35560ba | 317 | |
f59e1027 JB |
318 | /** |
319 | * Get the worker given its id. | |
320 | * | |
321 | * @param workerId - The worker id. | |
322 | * @returns The worker if found in the pool worker nodes, `undefined` otherwise. | |
323 | */ | |
324 | private getWorkerById (workerId: number): Worker | undefined { | |
325 | return this.workerNodes.find(workerNode => workerNode.info.id === workerId) | |
326 | ?.worker | |
327 | } | |
328 | ||
ffcbbad8 | 329 | /** |
f06e48d8 | 330 | * Gets the given worker its worker node key. |
ffcbbad8 JB |
331 | * |
332 | * @param worker - The worker. | |
f59e1027 | 333 | * @returns The worker node key if found in the pool worker nodes, `-1` otherwise. |
ffcbbad8 | 334 | */ |
f06e48d8 JB |
335 | private getWorkerNodeKey (worker: Worker): number { |
336 | return this.workerNodes.findIndex( | |
337 | workerNode => workerNode.worker === worker | |
338 | ) | |
bf9549ae JB |
339 | } |
340 | ||
afc003b2 | 341 | /** @inheritDoc */ |
a35560ba | 342 | public setWorkerChoiceStrategy ( |
59219cbb JB |
343 | workerChoiceStrategy: WorkerChoiceStrategy, |
344 | workerChoiceStrategyOptions?: WorkerChoiceStrategyOptions | |
a35560ba | 345 | ): void { |
aee46736 | 346 | this.checkValidWorkerChoiceStrategy(workerChoiceStrategy) |
b98ec2e6 | 347 | this.opts.workerChoiceStrategy = workerChoiceStrategy |
b6b32453 JB |
348 | this.workerChoiceStrategyContext.setWorkerChoiceStrategy( |
349 | this.opts.workerChoiceStrategy | |
350 | ) | |
351 | if (workerChoiceStrategyOptions != null) { | |
352 | this.setWorkerChoiceStrategyOptions(workerChoiceStrategyOptions) | |
353 | } | |
9c16fb4b | 354 | for (const [workerNodeKey, workerNode] of this.workerNodes.entries()) { |
8604aaab JB |
355 | this.setWorkerNodeTasksUsage( |
356 | workerNode, | |
9c16fb4b | 357 | this.getWorkerUsage(workerNodeKey) |
8604aaab | 358 | ) |
b6b32453 | 359 | this.setWorkerStatistics(workerNode.worker) |
59219cbb | 360 | } |
a20f0ba5 JB |
361 | } |
362 | ||
363 | /** @inheritDoc */ | |
364 | public setWorkerChoiceStrategyOptions ( | |
365 | workerChoiceStrategyOptions: WorkerChoiceStrategyOptions | |
366 | ): void { | |
0d80593b | 367 | this.checkValidWorkerChoiceStrategyOptions(workerChoiceStrategyOptions) |
a20f0ba5 JB |
368 | this.opts.workerChoiceStrategyOptions = workerChoiceStrategyOptions |
369 | this.workerChoiceStrategyContext.setOptions( | |
370 | this.opts.workerChoiceStrategyOptions | |
a35560ba S |
371 | ) |
372 | } | |
373 | ||
a20f0ba5 | 374 | /** @inheritDoc */ |
8f52842f JB |
375 | public enableTasksQueue ( |
376 | enable: boolean, | |
377 | tasksQueueOptions?: TasksQueueOptions | |
378 | ): void { | |
a20f0ba5 | 379 | if (this.opts.enableTasksQueue === true && !enable) { |
ef41a6e6 | 380 | this.flushTasksQueues() |
a20f0ba5 JB |
381 | } |
382 | this.opts.enableTasksQueue = enable | |
8f52842f | 383 | this.setTasksQueueOptions(tasksQueueOptions as TasksQueueOptions) |
a20f0ba5 JB |
384 | } |
385 | ||
386 | /** @inheritDoc */ | |
8f52842f | 387 | public setTasksQueueOptions (tasksQueueOptions: TasksQueueOptions): void { |
a20f0ba5 | 388 | if (this.opts.enableTasksQueue === true) { |
8f52842f JB |
389 | this.checkValidTasksQueueOptions(tasksQueueOptions) |
390 | this.opts.tasksQueueOptions = | |
391 | this.buildTasksQueueOptions(tasksQueueOptions) | |
5baee0d7 | 392 | } else if (this.opts.tasksQueueOptions != null) { |
a20f0ba5 JB |
393 | delete this.opts.tasksQueueOptions |
394 | } | |
395 | } | |
396 | ||
397 | private buildTasksQueueOptions ( | |
398 | tasksQueueOptions: TasksQueueOptions | |
399 | ): TasksQueueOptions { | |
400 | return { | |
401 | concurrency: tasksQueueOptions?.concurrency ?? 1 | |
402 | } | |
403 | } | |
404 | ||
c319c66b JB |
405 | /** |
406 | * Whether the pool is full or not. | |
407 | * | |
408 | * The pool filling boolean status. | |
409 | */ | |
dea903a8 JB |
410 | protected get full (): boolean { |
411 | return this.workerNodes.length >= this.maxSize | |
412 | } | |
c2ade475 | 413 | |
c319c66b JB |
414 | /** |
415 | * Whether the pool is busy or not. | |
416 | * | |
417 | * The pool busyness boolean status. | |
418 | */ | |
419 | protected abstract get busy (): boolean | |
7c0ba920 | 420 | |
6c6afb84 JB |
421 | /** |
422 | * Whether worker nodes are executing at least one task. | |
423 | * | |
424 | * @returns Worker nodes busyness boolean status. | |
425 | */ | |
c2ade475 | 426 | protected internalBusy (): boolean { |
e0ae6100 JB |
427 | return ( |
428 | this.workerNodes.findIndex(workerNode => { | |
f59e1027 | 429 | return workerNode.usage.tasks.executing === 0 |
e0ae6100 JB |
430 | }) === -1 |
431 | ) | |
cb70b19d JB |
432 | } |
433 | ||
afc003b2 | 434 | /** @inheritDoc */ |
a86b6df1 | 435 | public async execute (data?: Data, name?: string): Promise<Response> { |
b6b32453 | 436 | const timestamp = performance.now() |
20dcad1a | 437 | const workerNodeKey = this.chooseWorkerNode() |
adc3c320 | 438 | const submittedTask: Task<Data> = { |
a86b6df1 | 439 | name, |
e5a5c0fc JB |
440 | // eslint-disable-next-line @typescript-eslint/consistent-type-assertions |
441 | data: data ?? ({} as Data), | |
b6b32453 | 442 | timestamp, |
adc3c320 JB |
443 | id: crypto.randomUUID() |
444 | } | |
2e81254d | 445 | const res = new Promise<Response>((resolve, reject) => { |
02706357 | 446 | this.promiseResponseMap.set(submittedTask.id as string, { |
2e81254d JB |
447 | resolve, |
448 | reject, | |
20dcad1a | 449 | worker: this.workerNodes[workerNodeKey].worker |
2e81254d JB |
450 | }) |
451 | }) | |
ff733df7 JB |
452 | if ( |
453 | this.opts.enableTasksQueue === true && | |
7171d33f | 454 | (this.busy || |
f59e1027 | 455 | this.workerNodes[workerNodeKey].usage.tasks.executing >= |
7171d33f | 456 | ((this.opts.tasksQueueOptions as TasksQueueOptions) |
3528c992 | 457 | .concurrency as number)) |
ff733df7 | 458 | ) { |
26a929d7 JB |
459 | this.enqueueTask(workerNodeKey, submittedTask) |
460 | } else { | |
2e81254d | 461 | this.executeTask(workerNodeKey, submittedTask) |
adc3c320 | 462 | } |
ff733df7 | 463 | this.checkAndEmitEvents() |
78cea37e | 464 | // eslint-disable-next-line @typescript-eslint/return-await |
280c2a77 S |
465 | return res |
466 | } | |
c97c7edb | 467 | |
afc003b2 | 468 | /** @inheritDoc */ |
c97c7edb | 469 | public async destroy (): Promise<void> { |
1fbcaa7c | 470 | await Promise.all( |
875a7c37 JB |
471 | this.workerNodes.map(async (workerNode, workerNodeKey) => { |
472 | this.flushTasksQueue(workerNodeKey) | |
47aacbaa | 473 | // FIXME: wait for tasks to be finished |
f06e48d8 | 474 | await this.destroyWorker(workerNode.worker) |
1fbcaa7c JB |
475 | }) |
476 | ) | |
c97c7edb S |
477 | } |
478 | ||
4a6952ff | 479 | /** |
6c6afb84 | 480 | * Terminates the given worker. |
4a6952ff | 481 | * |
f06e48d8 | 482 | * @param worker - A worker within `workerNodes`. |
4a6952ff JB |
483 | */ |
484 | protected abstract destroyWorker (worker: Worker): void | Promise<void> | |
c97c7edb | 485 | |
729c563d | 486 | /** |
6677a3d3 JB |
487 | * Setup hook to execute code before worker nodes are created in the abstract constructor. |
488 | * Can be overridden. | |
afc003b2 JB |
489 | * |
490 | * @virtual | |
729c563d | 491 | */ |
280c2a77 | 492 | protected setupHook (): void { |
d99ba5a8 | 493 | // Intentionally empty |
280c2a77 | 494 | } |
c97c7edb | 495 | |
729c563d | 496 | /** |
280c2a77 S |
497 | * Should return whether the worker is the main worker or not. |
498 | */ | |
499 | protected abstract isMain (): boolean | |
500 | ||
501 | /** | |
2e81254d | 502 | * Hook executed before the worker task execution. |
bf9549ae | 503 | * Can be overridden. |
729c563d | 504 | * |
f06e48d8 | 505 | * @param workerNodeKey - The worker node key. |
1c6fe997 | 506 | * @param task - The task to execute. |
729c563d | 507 | */ |
1c6fe997 JB |
508 | protected beforeTaskExecutionHook ( |
509 | workerNodeKey: number, | |
510 | task: Task<Data> | |
511 | ): void { | |
f59e1027 | 512 | const workerUsage = this.workerNodes[workerNodeKey].usage |
1c6fe997 JB |
513 | ++workerUsage.tasks.executing |
514 | this.updateWaitTimeWorkerUsage(workerUsage, task) | |
c97c7edb S |
515 | } |
516 | ||
c01733f1 | 517 | /** |
2e81254d | 518 | * Hook executed after the worker task execution. |
bf9549ae | 519 | * Can be overridden. |
c01733f1 | 520 | * |
c923ce56 | 521 | * @param worker - The worker. |
38e795c1 | 522 | * @param message - The received message. |
c01733f1 | 523 | */ |
2e81254d | 524 | protected afterTaskExecutionHook ( |
c923ce56 | 525 | worker: Worker, |
2740a743 | 526 | message: MessageValue<Response> |
bf9549ae | 527 | ): void { |
f59e1027 | 528 | const workerUsage = this.workerNodes[this.getWorkerNodeKey(worker)].usage |
f1c06930 JB |
529 | this.updateTaskStatisticsWorkerUsage(workerUsage, message) |
530 | this.updateRunTimeWorkerUsage(workerUsage, message) | |
531 | this.updateEluWorkerUsage(workerUsage, message) | |
532 | } | |
533 | ||
534 | private updateTaskStatisticsWorkerUsage ( | |
535 | workerUsage: WorkerUsage, | |
536 | message: MessageValue<Response> | |
537 | ): void { | |
a4e07f72 JB |
538 | const workerTaskStatistics = workerUsage.tasks |
539 | --workerTaskStatistics.executing | |
540 | ++workerTaskStatistics.executed | |
82f36766 | 541 | if (message.taskError != null) { |
a4e07f72 | 542 | ++workerTaskStatistics.failed |
2740a743 | 543 | } |
f8eb0a2a JB |
544 | } |
545 | ||
a4e07f72 JB |
546 | private updateRunTimeWorkerUsage ( |
547 | workerUsage: WorkerUsage, | |
f8eb0a2a JB |
548 | message: MessageValue<Response> |
549 | ): void { | |
87de9ff5 JB |
550 | if ( |
551 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime | |
932fc8be | 552 | .aggregate |
87de9ff5 | 553 | ) { |
932fc8be | 554 | workerUsage.runTime.aggregate += message.taskPerformance?.runTime ?? 0 |
c6bd2650 | 555 | if ( |
932fc8be JB |
556 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime |
557 | .average && | |
a4e07f72 | 558 | workerUsage.tasks.executed !== 0 |
c6bd2650 | 559 | ) { |
a4e07f72 | 560 | workerUsage.runTime.average = |
f1c06930 JB |
561 | workerUsage.runTime.aggregate / |
562 | (workerUsage.tasks.executed - workerUsage.tasks.failed) | |
3032893a | 563 | } |
3fa4cdd2 | 564 | if ( |
932fc8be JB |
565 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime |
566 | .median && | |
d715b7bc | 567 | message.taskPerformance?.runTime != null |
3fa4cdd2 | 568 | ) { |
a4e07f72 JB |
569 | workerUsage.runTime.history.push(message.taskPerformance.runTime) |
570 | workerUsage.runTime.median = median(workerUsage.runTime.history) | |
78099a15 | 571 | } |
3032893a | 572 | } |
f8eb0a2a JB |
573 | } |
574 | ||
a4e07f72 JB |
575 | private updateWaitTimeWorkerUsage ( |
576 | workerUsage: WorkerUsage, | |
1c6fe997 | 577 | task: Task<Data> |
f8eb0a2a | 578 | ): void { |
1c6fe997 JB |
579 | const timestamp = performance.now() |
580 | const taskWaitTime = timestamp - (task.timestamp ?? timestamp) | |
87de9ff5 JB |
581 | if ( |
582 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime | |
932fc8be | 583 | .aggregate |
87de9ff5 | 584 | ) { |
932fc8be | 585 | workerUsage.waitTime.aggregate += taskWaitTime ?? 0 |
09a6305f | 586 | if ( |
87de9ff5 | 587 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
932fc8be | 588 | .waitTime.average && |
a4e07f72 | 589 | workerUsage.tasks.executed !== 0 |
09a6305f | 590 | ) { |
a4e07f72 | 591 | workerUsage.waitTime.average = |
f1c06930 JB |
592 | workerUsage.waitTime.aggregate / |
593 | (workerUsage.tasks.executed - workerUsage.tasks.failed) | |
09a6305f JB |
594 | } |
595 | if ( | |
87de9ff5 | 596 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
932fc8be | 597 | .waitTime.median && |
1c6fe997 | 598 | taskWaitTime != null |
09a6305f | 599 | ) { |
1c6fe997 | 600 | workerUsage.waitTime.history.push(taskWaitTime) |
a4e07f72 | 601 | workerUsage.waitTime.median = median(workerUsage.waitTime.history) |
09a6305f | 602 | } |
0567595a | 603 | } |
c01733f1 | 604 | } |
605 | ||
a4e07f72 | 606 | private updateEluWorkerUsage ( |
5df69fab | 607 | workerUsage: WorkerUsage, |
62c15a68 JB |
608 | message: MessageValue<Response> |
609 | ): void { | |
5df69fab JB |
610 | if ( |
611 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu | |
612 | .aggregate | |
613 | ) { | |
614 | if (workerUsage.elu != null && message.taskPerformance?.elu != null) { | |
9adcefab JB |
615 | workerUsage.elu.idle.aggregate += message.taskPerformance.elu.idle |
616 | workerUsage.elu.active.aggregate += message.taskPerformance.elu.active | |
5df69fab JB |
617 | workerUsage.elu.utilization = |
618 | (workerUsage.elu.utilization + | |
619 | message.taskPerformance.elu.utilization) / | |
620 | 2 | |
621 | } else if (message.taskPerformance?.elu != null) { | |
622 | workerUsage.elu.idle.aggregate = message.taskPerformance.elu.idle | |
623 | workerUsage.elu.active.aggregate = message.taskPerformance.elu.active | |
624 | workerUsage.elu.utilization = message.taskPerformance.elu.utilization | |
625 | } | |
d715b7bc | 626 | if ( |
5df69fab JB |
627 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu |
628 | .average && | |
629 | workerUsage.tasks.executed !== 0 | |
630 | ) { | |
f1c06930 JB |
631 | const executedTasks = |
632 | workerUsage.tasks.executed - workerUsage.tasks.failed | |
5df69fab | 633 | workerUsage.elu.idle.average = |
f1c06930 | 634 | workerUsage.elu.idle.aggregate / executedTasks |
5df69fab | 635 | workerUsage.elu.active.average = |
f1c06930 | 636 | workerUsage.elu.active.aggregate / executedTasks |
5df69fab JB |
637 | } |
638 | if ( | |
639 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu | |
640 | .median && | |
d715b7bc JB |
641 | message.taskPerformance?.elu != null |
642 | ) { | |
5df69fab JB |
643 | workerUsage.elu.idle.history.push(message.taskPerformance.elu.idle) |
644 | workerUsage.elu.active.history.push(message.taskPerformance.elu.active) | |
645 | workerUsage.elu.idle.median = median(workerUsage.elu.idle.history) | |
646 | workerUsage.elu.active.median = median(workerUsage.elu.active.history) | |
62c15a68 JB |
647 | } |
648 | } | |
649 | } | |
650 | ||
280c2a77 | 651 | /** |
f06e48d8 | 652 | * Chooses a worker node for the next task. |
280c2a77 | 653 | * |
6c6afb84 | 654 | * The default worker choice strategy uses a round robin algorithm to distribute the tasks. |
280c2a77 | 655 | * |
20dcad1a | 656 | * @returns The worker node key |
280c2a77 | 657 | */ |
6c6afb84 | 658 | private chooseWorkerNode (): number { |
930dcf12 | 659 | if (this.shallCreateDynamicWorker()) { |
6c6afb84 JB |
660 | const worker = this.createAndSetupDynamicWorker() |
661 | if ( | |
662 | this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker | |
663 | ) { | |
664 | return this.getWorkerNodeKey(worker) | |
665 | } | |
17393ac8 | 666 | } |
930dcf12 JB |
667 | return this.workerChoiceStrategyContext.execute() |
668 | } | |
669 | ||
6c6afb84 JB |
670 | /** |
671 | * Conditions for dynamic worker creation. | |
672 | * | |
673 | * @returns Whether to create a dynamic worker or not. | |
674 | */ | |
675 | private shallCreateDynamicWorker (): boolean { | |
930dcf12 | 676 | return this.type === PoolTypes.dynamic && !this.full && this.internalBusy() |
c97c7edb S |
677 | } |
678 | ||
280c2a77 | 679 | /** |
675bb809 | 680 | * Sends a message to the given worker. |
280c2a77 | 681 | * |
38e795c1 JB |
682 | * @param worker - The worker which should receive the message. |
683 | * @param message - The message. | |
280c2a77 S |
684 | */ |
685 | protected abstract sendToWorker ( | |
686 | worker: Worker, | |
687 | message: MessageValue<Data> | |
688 | ): void | |
689 | ||
4a6952ff | 690 | /** |
f06e48d8 | 691 | * Registers a listener callback on the given worker. |
4a6952ff | 692 | * |
38e795c1 JB |
693 | * @param worker - The worker which should register a listener. |
694 | * @param listener - The message listener callback. | |
4a6952ff | 695 | */ |
e102732c JB |
696 | private registerWorkerMessageListener<Message extends Data | Response>( |
697 | worker: Worker, | |
698 | listener: (message: MessageValue<Message>) => void | |
699 | ): void { | |
700 | worker.on('message', listener as MessageHandler<Worker>) | |
701 | } | |
c97c7edb | 702 | |
729c563d | 703 | /** |
41344292 | 704 | * Creates a new worker. |
6c6afb84 JB |
705 | * |
706 | * @returns Newly created worker. | |
729c563d | 707 | */ |
280c2a77 | 708 | protected abstract createWorker (): Worker |
c97c7edb | 709 | |
729c563d | 710 | /** |
f06e48d8 | 711 | * Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes. |
6677a3d3 | 712 | * Can be overridden. |
729c563d | 713 | * |
38e795c1 | 714 | * @param worker - The newly created worker. |
729c563d | 715 | */ |
6677a3d3 | 716 | protected afterWorkerSetup (worker: Worker): void { |
e102732c JB |
717 | // Listen to worker messages. |
718 | this.registerWorkerMessageListener(worker, this.workerListener()) | |
719 | } | |
c97c7edb | 720 | |
4a6952ff | 721 | /** |
f06e48d8 | 722 | * Creates a new worker and sets it up completely in the pool worker nodes. |
4a6952ff JB |
723 | * |
724 | * @returns New, completely set up worker. | |
725 | */ | |
726 | protected createAndSetupWorker (): Worker { | |
bdacc2d2 | 727 | const worker = this.createWorker() |
280c2a77 | 728 | |
35cf1c03 | 729 | worker.on('message', this.opts.messageHandler ?? EMPTY_FUNCTION) |
a35560ba | 730 | worker.on('error', this.opts.errorHandler ?? EMPTY_FUNCTION) |
1f68cede JB |
731 | worker.on('error', error => { |
732 | if (this.emitter != null) { | |
733 | this.emitter.emit(PoolEvents.error, error) | |
734 | } | |
f59e1027 | 735 | if (this.opts.restartWorkerOnError === true && !this.starting) { |
1f68cede | 736 | this.createAndSetupWorker() |
5baee0d7 JB |
737 | } |
738 | }) | |
a35560ba S |
739 | worker.on('online', this.opts.onlineHandler ?? EMPTY_FUNCTION) |
740 | worker.on('exit', this.opts.exitHandler ?? EMPTY_FUNCTION) | |
a974afa6 | 741 | worker.once('exit', () => { |
f06e48d8 | 742 | this.removeWorkerNode(worker) |
a974afa6 | 743 | }) |
280c2a77 | 744 | |
f06e48d8 | 745 | this.pushWorkerNode(worker) |
280c2a77 | 746 | |
b6b32453 JB |
747 | this.setWorkerStatistics(worker) |
748 | ||
280c2a77 S |
749 | this.afterWorkerSetup(worker) |
750 | ||
c97c7edb S |
751 | return worker |
752 | } | |
be0676b3 | 753 | |
930dcf12 JB |
754 | /** |
755 | * Creates a new dynamic worker and sets it up completely in the pool worker nodes. | |
756 | * | |
757 | * @returns New, completely set up dynamic worker. | |
758 | */ | |
759 | protected createAndSetupDynamicWorker (): Worker { | |
760 | const worker = this.createAndSetupWorker() | |
761 | this.registerWorkerMessageListener(worker, message => { | |
e8b3a5ab | 762 | const workerNodeKey = this.getWorkerNodeKey(worker) |
930dcf12 JB |
763 | if ( |
764 | isKillBehavior(KillBehaviors.HARD, message.kill) || | |
7b56f532 JB |
765 | (message.kill != null && |
766 | ((this.opts.enableTasksQueue === false && | |
f59e1027 | 767 | this.workerNodes[workerNodeKey].usage.tasks.executing === 0) || |
7b56f532 | 768 | (this.opts.enableTasksQueue === true && |
f59e1027 | 769 | this.workerNodes[workerNodeKey].usage.tasks.executing === 0 && |
e8b3a5ab | 770 | this.tasksQueueSize(workerNodeKey) === 0))) |
930dcf12 JB |
771 | ) { |
772 | // Kill message received from the worker: no new tasks are submitted to that worker for a while ( > maxInactiveTime) | |
930dcf12 JB |
773 | void (this.destroyWorker(worker) as Promise<void>) |
774 | } | |
775 | }) | |
776 | return worker | |
777 | } | |
778 | ||
be0676b3 | 779 | /** |
ff733df7 | 780 | * This function is the listener registered for each worker message. |
be0676b3 | 781 | * |
bdacc2d2 | 782 | * @returns The listener function to execute when a message is received from a worker. |
be0676b3 APA |
783 | */ |
784 | protected workerListener (): (message: MessageValue<Response>) => void { | |
4a6952ff | 785 | return message => { |
f59e1027 JB |
786 | if (message.workerId != null && message.started != null) { |
787 | // Worker started message received | |
83fa0a36 JB |
788 | const worker = this.getWorkerById(message.workerId) |
789 | if (worker != null) { | |
790 | this.workerNodes[this.getWorkerNodeKey(worker)].info.started = | |
791 | message.started | |
792 | } else { | |
793 | throw new Error('Worker started message received from unknown worker') | |
794 | } | |
f59e1027 | 795 | } else if (message.id != null) { |
a3445496 | 796 | // Task execution response received |
2740a743 | 797 | const promiseResponse = this.promiseResponseMap.get(message.id) |
b1989cfd | 798 | if (promiseResponse != null) { |
82f36766 | 799 | if (message.taskError != null) { |
91ee39ed | 800 | if (this.emitter != null) { |
82f36766 | 801 | this.emitter.emit(PoolEvents.taskError, message.taskError) |
91ee39ed | 802 | } |
cd9580e7 | 803 | promiseResponse.reject(message.taskError.message) |
a05c10de | 804 | } else { |
2740a743 | 805 | promiseResponse.resolve(message.data as Response) |
a05c10de | 806 | } |
2e81254d | 807 | this.afterTaskExecutionHook(promiseResponse.worker, message) |
2740a743 | 808 | this.promiseResponseMap.delete(message.id) |
ff733df7 JB |
809 | const workerNodeKey = this.getWorkerNodeKey(promiseResponse.worker) |
810 | if ( | |
811 | this.opts.enableTasksQueue === true && | |
416fd65c | 812 | this.tasksQueueSize(workerNodeKey) > 0 |
ff733df7 | 813 | ) { |
2e81254d JB |
814 | this.executeTask( |
815 | workerNodeKey, | |
ff733df7 JB |
816 | this.dequeueTask(workerNodeKey) as Task<Data> |
817 | ) | |
818 | } | |
e5536a06 | 819 | this.workerChoiceStrategyContext.update(workerNodeKey) |
be0676b3 APA |
820 | } |
821 | } | |
822 | } | |
be0676b3 | 823 | } |
7c0ba920 | 824 | |
ff733df7 | 825 | private checkAndEmitEvents (): void { |
1f68cede | 826 | if (this.emitter != null) { |
ff733df7 | 827 | if (this.busy) { |
6b27d407 | 828 | this.emitter?.emit(PoolEvents.busy, this.info) |
ff733df7 | 829 | } |
6b27d407 JB |
830 | if (this.type === PoolTypes.dynamic && this.full) { |
831 | this.emitter?.emit(PoolEvents.full, this.info) | |
ff733df7 | 832 | } |
164d950a JB |
833 | } |
834 | } | |
835 | ||
0ebe2a9f JB |
836 | /** |
837 | * Sets the given worker node its tasks usage in the pool. | |
838 | * | |
839 | * @param workerNode - The worker node. | |
a4e07f72 | 840 | * @param workerUsage - The worker usage. |
0ebe2a9f JB |
841 | */ |
842 | private setWorkerNodeTasksUsage ( | |
843 | workerNode: WorkerNode<Worker, Data>, | |
a4e07f72 | 844 | workerUsage: WorkerUsage |
0ebe2a9f | 845 | ): void { |
f59e1027 | 846 | workerNode.usage = workerUsage |
0ebe2a9f JB |
847 | } |
848 | ||
a05c10de | 849 | /** |
f06e48d8 | 850 | * Pushes the given worker in the pool worker nodes. |
ea7a90d3 | 851 | * |
38e795c1 | 852 | * @param worker - The worker. |
f06e48d8 | 853 | * @returns The worker nodes length. |
ea7a90d3 | 854 | */ |
f06e48d8 | 855 | private pushWorkerNode (worker: Worker): number { |
9c16fb4b | 856 | this.workerNodes.push({ |
ffcbbad8 | 857 | worker, |
83fa0a36 | 858 | info: { id: this.getWorkerId(worker), started: false }, |
f59e1027 | 859 | usage: this.getWorkerUsage(), |
29ee7e9a | 860 | tasksQueue: new Queue<Task<Data>>() |
ea7a90d3 | 861 | }) |
9c16fb4b JB |
862 | const workerNodeKey = this.getWorkerNodeKey(worker) |
863 | this.setWorkerNodeTasksUsage( | |
864 | this.workerNodes[workerNodeKey], | |
865 | this.getWorkerUsage(workerNodeKey) | |
866 | ) | |
867 | return this.workerNodes.length | |
ea7a90d3 | 868 | } |
c923ce56 | 869 | |
83fa0a36 JB |
870 | /** |
871 | * Gets the worker id. | |
872 | * | |
873 | * @param worker - The worker. | |
874 | * @returns The worker id. | |
875 | */ | |
876 | private getWorkerId (worker: Worker): number | undefined { | |
877 | if (this.worker === WorkerTypes.thread) { | |
878 | return worker.threadId | |
879 | } else if (this.worker === WorkerTypes.cluster) { | |
880 | return worker.id | |
881 | } | |
882 | } | |
883 | ||
8604aaab JB |
884 | // /** |
885 | // * Sets the given worker in the pool worker nodes. | |
886 | // * | |
887 | // * @param workerNodeKey - The worker node key. | |
888 | // * @param worker - The worker. | |
f59e1027 | 889 | // * @param workerInfo - The worker info. |
8604aaab JB |
890 | // * @param workerUsage - The worker usage. |
891 | // * @param tasksQueue - The worker task queue. | |
892 | // */ | |
893 | // private setWorkerNode ( | |
894 | // workerNodeKey: number, | |
895 | // worker: Worker, | |
f59e1027 | 896 | // workerInfo: WorkerInfo, |
8604aaab JB |
897 | // workerUsage: WorkerUsage, |
898 | // tasksQueue: Queue<Task<Data>> | |
899 | // ): void { | |
900 | // this.workerNodes[workerNodeKey] = { | |
901 | // worker, | |
f59e1027 JB |
902 | // info: workerInfo, |
903 | // usage: workerUsage, | |
8604aaab JB |
904 | // tasksQueue |
905 | // } | |
906 | // } | |
51fe3d3c JB |
907 | |
908 | /** | |
f06e48d8 | 909 | * Removes the given worker from the pool worker nodes. |
51fe3d3c | 910 | * |
f06e48d8 | 911 | * @param worker - The worker. |
51fe3d3c | 912 | */ |
416fd65c | 913 | private removeWorkerNode (worker: Worker): void { |
f06e48d8 | 914 | const workerNodeKey = this.getWorkerNodeKey(worker) |
1f68cede JB |
915 | if (workerNodeKey !== -1) { |
916 | this.workerNodes.splice(workerNodeKey, 1) | |
917 | this.workerChoiceStrategyContext.remove(workerNodeKey) | |
918 | } | |
51fe3d3c | 919 | } |
adc3c320 | 920 | |
2e81254d | 921 | private executeTask (workerNodeKey: number, task: Task<Data>): void { |
1c6fe997 | 922 | this.beforeTaskExecutionHook(workerNodeKey, task) |
2e81254d JB |
923 | this.sendToWorker(this.workerNodes[workerNodeKey].worker, task) |
924 | } | |
925 | ||
f9f00b5f | 926 | private enqueueTask (workerNodeKey: number, task: Task<Data>): number { |
29ee7e9a | 927 | return this.workerNodes[workerNodeKey].tasksQueue.enqueue(task) |
adc3c320 JB |
928 | } |
929 | ||
416fd65c | 930 | private dequeueTask (workerNodeKey: number): Task<Data> | undefined { |
29ee7e9a | 931 | return this.workerNodes[workerNodeKey].tasksQueue.dequeue() |
adc3c320 JB |
932 | } |
933 | ||
416fd65c | 934 | private tasksQueueSize (workerNodeKey: number): number { |
4d8bf9e4 | 935 | return this.workerNodes[workerNodeKey].tasksQueue.size |
adc3c320 | 936 | } |
ff733df7 | 937 | |
df593701 JB |
938 | private tasksMaxQueueSize (workerNodeKey: number): number { |
939 | return this.workerNodes[workerNodeKey].tasksQueue.maxSize | |
940 | } | |
941 | ||
416fd65c JB |
942 | private flushTasksQueue (workerNodeKey: number): void { |
943 | if (this.tasksQueueSize(workerNodeKey) > 0) { | |
29ee7e9a JB |
944 | for (let i = 0; i < this.tasksQueueSize(workerNodeKey); i++) { |
945 | this.executeTask( | |
946 | workerNodeKey, | |
947 | this.dequeueTask(workerNodeKey) as Task<Data> | |
948 | ) | |
ff733df7 | 949 | } |
ff733df7 | 950 | } |
df593701 | 951 | this.workerNodes[workerNodeKey].tasksQueue.clear() |
ff733df7 JB |
952 | } |
953 | ||
ef41a6e6 JB |
954 | private flushTasksQueues (): void { |
955 | for (const [workerNodeKey] of this.workerNodes.entries()) { | |
956 | this.flushTasksQueue(workerNodeKey) | |
957 | } | |
958 | } | |
b6b32453 JB |
959 | |
960 | private setWorkerStatistics (worker: Worker): void { | |
961 | this.sendToWorker(worker, { | |
962 | statistics: { | |
87de9ff5 JB |
963 | runTime: |
964 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() | |
932fc8be | 965 | .runTime.aggregate, |
87de9ff5 | 966 | elu: this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
5df69fab | 967 | .elu.aggregate |
b6b32453 JB |
968 | } |
969 | }) | |
970 | } | |
8604aaab | 971 | |
9c16fb4b | 972 | private getWorkerUsage (workerNodeKey?: number): WorkerUsage { |
e3347a5c JB |
973 | const getTasksQueueSize = (workerNodeKey?: number): number => { |
974 | return workerNodeKey != null ? this.tasksQueueSize(workerNodeKey) : 0 | |
9c16fb4b | 975 | } |
df593701 JB |
976 | const getTasksMaxQueueSize = (workerNodeKey?: number): number => { |
977 | return workerNodeKey != null ? this.tasksMaxQueueSize(workerNodeKey) : 0 | |
978 | } | |
8604aaab | 979 | return { |
9c16fb4b JB |
980 | tasks: { |
981 | executed: 0, | |
982 | executing: 0, | |
983 | get queued (): number { | |
e3347a5c | 984 | return getTasksQueueSize(workerNodeKey) |
9c16fb4b | 985 | }, |
df593701 JB |
986 | get maxQueued (): number { |
987 | return getTasksMaxQueueSize(workerNodeKey) | |
988 | }, | |
9c16fb4b JB |
989 | failed: 0 |
990 | }, | |
8604aaab | 991 | runTime: { |
932fc8be | 992 | aggregate: 0, |
8604aaab JB |
993 | average: 0, |
994 | median: 0, | |
995 | history: new CircularArray() | |
996 | }, | |
997 | waitTime: { | |
932fc8be | 998 | aggregate: 0, |
8604aaab JB |
999 | average: 0, |
1000 | median: 0, | |
1001 | history: new CircularArray() | |
1002 | }, | |
5df69fab JB |
1003 | elu: { |
1004 | idle: { | |
1005 | aggregate: 0, | |
1006 | average: 0, | |
1007 | median: 0, | |
1008 | history: new CircularArray() | |
1009 | }, | |
1010 | active: { | |
1011 | aggregate: 0, | |
1012 | average: 0, | |
1013 | median: 0, | |
1014 | history: new CircularArray() | |
1015 | }, | |
1016 | utilization: 0 | |
1017 | } | |
8604aaab JB |
1018 | } |
1019 | } | |
c97c7edb | 1020 | } |