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01f4001e | 1 | import type { Worker } from 'node:worker_threads'; |
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2 | |
3 | import { DynamicThreadPool, type ErrorHandler, type ExitHandler } from 'poolifier'; | |
8114d10e | 4 | |
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5 | import { WorkerAbstract } from './WorkerAbstract'; |
6 | import type { WorkerData, WorkerOptions } from './WorkerTypes'; | |
789871d6 | 7 | import { defaultErrorHandler, defaultExitHandler, sleep } from './WorkerUtils'; |
a4624c96 | 8 | |
268a74bb | 9 | export class WorkerDynamicPool extends WorkerAbstract<WorkerData> { |
f2bf9948 | 10 | private readonly pool: DynamicThreadPool<WorkerData>; |
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11 | |
12 | /** | |
13 | * Create a new `WorkerDynamicPool`. | |
14 | * | |
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15 | * @param workerScript - |
16 | * @param workerOptions - | |
a4624c96 | 17 | */ |
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18 | constructor(workerScript: string, workerOptions?: WorkerOptions) { |
19 | super(workerScript, workerOptions); | |
0e4fa348 | 20 | this.workerOptions.poolOptions.errorHandler = ( |
789871d6 | 21 | this.workerOptions?.poolOptions?.errorHandler ?? defaultErrorHandler |
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22 | ).bind(this) as ErrorHandler<Worker>; |
23 | this.workerOptions.poolOptions.exitHandler = ( | |
789871d6 | 24 | this.workerOptions?.poolOptions?.exitHandler ?? defaultExitHandler |
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25 | ).bind(this) as ExitHandler<Worker>; |
26 | this.workerOptions.poolOptions.messageHandler.bind(this); | |
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27 | this.pool = new DynamicThreadPool<WorkerData>( |
28 | this.workerOptions.poolMinSize, | |
29 | this.workerOptions.poolMaxSize, | |
30 | this.workerScript, | |
31 | this.workerOptions.poolOptions | |
32 | ); | |
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33 | } |
34 | ||
35 | get size(): number { | |
4597fdc5 | 36 | return this.pool.workerNodes.length; |
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37 | } |
38 | ||
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39 | get maxElementsPerWorker(): number | undefined { |
40 | return undefined; | |
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41 | } |
42 | ||
43 | /** | |
44 | * | |
81797102 | 45 | * @returns |
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46 | * @public |
47 | */ | |
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48 | public async start(): Promise<void> { |
49 | // This is intentional | |
50 | } | |
a4624c96 | 51 | |
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52 | /** |
53 | * | |
81797102 | 54 | * @returns |
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55 | * @public |
56 | */ | |
57 | public async stop(): Promise<void> { | |
58 | return this.pool.destroy(); | |
59 | } | |
60 | ||
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61 | /** |
62 | * | |
0e4fa348 | 63 | * @param elementData - |
81797102 | 64 | * @returns |
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65 | * @public |
66 | */ | |
c3ee95af | 67 | public async addElement(elementData: WorkerData): Promise<void> { |
a4624c96 | 68 | await this.pool.execute(elementData); |
4bfd80fa | 69 | // Start element sequentially to optimize memory at startup |
789871d6 | 70 | this.workerOptions.elementStartDelay > 0 && (await sleep(this.workerOptions.elementStartDelay)); |
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71 | } |
72 | } |