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c32882b0 | 1 | import { DynamicThreadPool, PoolOptions } from 'poolifier'; |
a4624c96 | 2 | |
a4624c96 | 3 | import Utils from '../utils/Utils'; |
c32882b0 | 4 | import { Worker } from 'worker_threads'; |
fd1fdf1b | 5 | import WorkerAbstract from './WorkerAbstract'; |
a4624c96 | 6 | import { WorkerData } from '../types/Worker'; |
7874b0b1 | 7 | import { WorkerUtils } from './WorkerUtils'; |
a4624c96 | 8 | |
fd1fdf1b | 9 | export default class WorkerDynamicPool<T> extends WorkerAbstract { |
8df3f0a9 | 10 | private pool: DynamicThreadPool<WorkerData>; |
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11 | |
12 | /** | |
13 | * Create a new `WorkerDynamicPool`. | |
14 | * | |
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15 | * @param workerScript |
16 | * @param min | |
17 | * @param max | |
18 | * @param workerStartDelay | |
19 | * @param opts | |
a4624c96 | 20 | */ |
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21 | constructor(workerScript: string, min: number, max: number, workerStartDelay?: number, opts?: PoolOptions<Worker>) { |
22 | super(workerScript, workerStartDelay); | |
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23 | opts.exitHandler = opts?.exitHandler ?? WorkerUtils.defaultExitHandler; |
24 | this.pool = new DynamicThreadPool<WorkerData>(min, max, this.workerScript, opts); | |
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25 | } |
26 | ||
27 | get size(): number { | |
28 | return this.pool.workers.length; | |
29 | } | |
30 | ||
6e0964c8 | 31 | get maxElementsPerWorker(): number | null { |
85f78bc0 | 32 | return null; |
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33 | } |
34 | ||
35 | /** | |
36 | * | |
81797102 | 37 | * @returns |
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38 | * @public |
39 | */ | |
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40 | public async start(): Promise<void> { |
41 | // This is intentional | |
42 | } | |
a4624c96 | 43 | |
ded13d97 JB |
44 | /** |
45 | * | |
81797102 | 46 | * @returns |
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47 | * @public |
48 | */ | |
49 | public async stop(): Promise<void> { | |
50 | return this.pool.destroy(); | |
51 | } | |
52 | ||
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53 | /** |
54 | * | |
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55 | * @param elementData |
56 | * @returns | |
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57 | * @public |
58 | */ | |
8434025b | 59 | public async addElement(elementData: T): Promise<void> { |
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60 | await this.pool.execute(elementData); |
61 | // Start worker sequentially to optimize memory at startup | |
322c9192 | 62 | await Utils.sleep(this.workerStartDelay); |
a4624c96 JB |
63 | } |
64 | } |