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85aeb3f3 | 1 | import { MessageChannel } from 'node:worker_threads' |
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2 | import { CircularArray } from '../circular-array' |
3 | import { Queue } from '../queue' | |
5c4d16da | 4 | import type { Task } from '../utility-types' |
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5 | import { |
6 | type IWorker, | |
7 | type IWorkerNode, | |
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8 | type WorkerInfo, |
9 | type WorkerType, | |
10 | WorkerTypes, | |
11 | type WorkerUsage | |
12 | } from './worker' | |
13 | ||
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14 | /** |
15 | * Worker node. | |
16 | * | |
17 | * @typeParam Worker - Type of worker. | |
18 | * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. | |
19 | */ | |
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20 | export class WorkerNode<Worker extends IWorker, Data = unknown> |
21 | implements IWorkerNode<Worker, Data> { | |
22 | public readonly worker: Worker | |
23 | public readonly info: WorkerInfo | |
24 | public usage: WorkerUsage | |
ff128cc9 | 25 | private readonly tasksUsage: Map<string, WorkerUsage> |
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26 | private readonly tasksQueue: Queue<Task<Data>> |
27 | ||
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28 | /** |
29 | * Constructs a new worker node. | |
30 | * | |
31 | * @param worker - The worker. | |
32 | * @param workerType - The worker type. | |
60664f48 | 33 | */ |
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34 | constructor (worker: Worker, workerType: WorkerType) { |
35 | this.worker = worker | |
36 | this.info = this.initWorkerInfo(worker, workerType) | |
37 | this.usage = this.initWorkerUsage() | |
ff128cc9 | 38 | this.tasksUsage = new Map<string, WorkerUsage>() |
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39 | this.tasksQueue = new Queue<Task<Data>>() |
40 | } | |
41 | ||
42 | /** @inheritdoc */ | |
43 | public tasksQueueSize (): number { | |
44 | return this.tasksQueue.size | |
45 | } | |
46 | ||
47 | /** | |
eb8afc8a | 48 | * Tasks queue maximum size. |
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49 | * |
50 | * @returns The tasks queue maximum size. | |
51 | */ | |
52 | private tasksQueueMaxSize (): number { | |
53 | return this.tasksQueue.maxSize | |
54 | } | |
55 | ||
56 | /** @inheritdoc */ | |
57 | public enqueueTask (task: Task<Data>): number { | |
58 | return this.tasksQueue.enqueue(task) | |
59 | } | |
60 | ||
61 | /** @inheritdoc */ | |
62 | public dequeueTask (): Task<Data> | undefined { | |
63 | return this.tasksQueue.dequeue() | |
64 | } | |
65 | ||
66 | /** @inheritdoc */ | |
67 | public clearTasksQueue (): void { | |
68 | this.tasksQueue.clear() | |
69 | } | |
70 | ||
ff128cc9 | 71 | /** @inheritdoc */ |
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72 | public resetUsage (): void { |
73 | this.usage = this.initWorkerUsage() | |
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74 | this.tasksUsage.clear() |
75 | } | |
76 | ||
77 | /** @inheritdoc */ | |
ce1b31be | 78 | public getTaskWorkerUsage (name: string): WorkerUsage | undefined { |
ff128cc9 | 79 | if (!this.tasksUsage.has(name)) { |
b25a42cd | 80 | this.tasksUsage.set(name, this.initTaskWorkerUsage(name)) |
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81 | } |
82 | return this.tasksUsage.get(name) | |
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83 | } |
84 | ||
85 | private initWorkerInfo (worker: Worker, workerType: WorkerType): WorkerInfo { | |
86 | return { | |
87 | id: this.getWorkerId(worker, workerType), | |
88 | type: workerType, | |
89 | dynamic: false, | |
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90 | ready: false, |
91 | ...(workerType === WorkerTypes.thread && { | |
92 | messageChannel: new MessageChannel() | |
93 | }) | |
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94 | } |
95 | } | |
96 | ||
97 | private initWorkerUsage (): WorkerUsage { | |
98 | const getTasksQueueSize = (): number => { | |
99 | return this.tasksQueueSize() | |
100 | } | |
bf4ef2ca | 101 | const getTasksQueueMaxSize = (): number => { |
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102 | return this.tasksQueueMaxSize() |
103 | } | |
104 | return { | |
105 | tasks: { | |
106 | executed: 0, | |
107 | executing: 0, | |
108 | get queued (): number { | |
109 | return getTasksQueueSize() | |
110 | }, | |
111 | get maxQueued (): number { | |
bf4ef2ca | 112 | return getTasksQueueMaxSize() |
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113 | }, |
114 | failed: 0 | |
115 | }, | |
116 | runTime: { | |
117 | history: new CircularArray() | |
118 | }, | |
119 | waitTime: { | |
120 | history: new CircularArray() | |
121 | }, | |
122 | elu: { | |
123 | idle: { | |
124 | history: new CircularArray() | |
125 | }, | |
126 | active: { | |
127 | history: new CircularArray() | |
128 | } | |
129 | } | |
130 | } | |
131 | } | |
132 | ||
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133 | private initTaskWorkerUsage (name: string): WorkerUsage { |
134 | const getTaskQueueSize = (): number => { | |
135 | let taskQueueSize = 0 | |
136 | for (const task of this.tasksQueue) { | |
137 | if (task.name === name) { | |
138 | ++taskQueueSize | |
139 | } | |
140 | } | |
141 | return taskQueueSize | |
142 | } | |
143 | return { | |
144 | tasks: { | |
145 | executed: 0, | |
146 | executing: 0, | |
147 | get queued (): number { | |
148 | return getTaskQueueSize() | |
149 | }, | |
150 | failed: 0 | |
151 | }, | |
152 | runTime: { | |
153 | history: new CircularArray() | |
154 | }, | |
155 | waitTime: { | |
156 | history: new CircularArray() | |
157 | }, | |
158 | elu: { | |
159 | idle: { | |
160 | history: new CircularArray() | |
161 | }, | |
162 | active: { | |
163 | history: new CircularArray() | |
164 | } | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
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169 | /** |
170 | * Gets the worker id. | |
171 | * | |
172 | * @param worker - The worker. | |
60664f48 | 173 | * @param workerType - The worker type. |
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174 | * @returns The worker id. |
175 | */ | |
176 | private getWorkerId ( | |
177 | worker: Worker, | |
178 | workerType: WorkerType | |
179 | ): number | undefined { | |
180 | if (workerType === WorkerTypes.thread) { | |
181 | return worker.threadId | |
182 | } else if (workerType === WorkerTypes.cluster) { | |
183 | return worker.id | |
184 | } | |
185 | } | |
186 | } |