| 1 | import { CircularArray } from '../circular-array' |
| 2 | import { Queue } from '../queue' |
| 3 | import { |
| 4 | type IWorker, |
| 5 | type IWorkerNode, |
| 6 | type Task, |
| 7 | type WorkerInfo, |
| 8 | type WorkerType, |
| 9 | WorkerTypes, |
| 10 | type WorkerUsage |
| 11 | } from './worker' |
| 12 | |
| 13 | /** |
| 14 | * Worker node. |
| 15 | * |
| 16 | * @typeParam Worker - Type of worker. |
| 17 | * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. |
| 18 | */ |
| 19 | export class WorkerNode<Worker extends IWorker, Data = unknown> |
| 20 | implements IWorkerNode<Worker, Data> { |
| 21 | public readonly worker: Worker |
| 22 | public readonly info: WorkerInfo |
| 23 | public usage: WorkerUsage |
| 24 | private readonly tasksQueue: Queue<Task<Data>> |
| 25 | |
| 26 | /** |
| 27 | * Constructs a new worker node. |
| 28 | * |
| 29 | * @param worker - The worker. |
| 30 | * @param workerType - The worker type. |
| 31 | * @internal |
| 32 | */ |
| 33 | constructor (worker: Worker, workerType: WorkerType) { |
| 34 | this.worker = worker |
| 35 | this.info = this.initWorkerInfo(worker, workerType) |
| 36 | this.usage = this.initWorkerUsage() |
| 37 | this.tasksQueue = new Queue<Task<Data>>() |
| 38 | } |
| 39 | |
| 40 | /** @inheritdoc */ |
| 41 | public tasksQueueSize (): number { |
| 42 | return this.tasksQueue.size |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Worker node tasks queue maximum size. |
| 47 | * |
| 48 | * @returns The tasks queue maximum size. |
| 49 | */ |
| 50 | private tasksQueueMaxSize (): number { |
| 51 | return this.tasksQueue.maxSize |
| 52 | } |
| 53 | |
| 54 | /** @inheritdoc */ |
| 55 | public enqueueTask (task: Task<Data>): number { |
| 56 | return this.tasksQueue.enqueue(task) |
| 57 | } |
| 58 | |
| 59 | /** @inheritdoc */ |
| 60 | public dequeueTask (): Task<Data> | undefined { |
| 61 | return this.tasksQueue.dequeue() |
| 62 | } |
| 63 | |
| 64 | /** @inheritdoc */ |
| 65 | public clearTasksQueue (): void { |
| 66 | this.tasksQueue.clear() |
| 67 | } |
| 68 | |
| 69 | public resetUsage (): void { |
| 70 | this.usage = this.initWorkerUsage() |
| 71 | } |
| 72 | |
| 73 | private initWorkerInfo (worker: Worker, workerType: WorkerType): WorkerInfo { |
| 74 | return { |
| 75 | id: this.getWorkerId(worker, workerType), |
| 76 | type: workerType, |
| 77 | dynamic: false, |
| 78 | ready: false |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | private initWorkerUsage (): WorkerUsage { |
| 83 | const getTasksQueueSize = (): number => { |
| 84 | return this.tasksQueueSize() |
| 85 | } |
| 86 | const getTasksQueueMaxSize = (): number => { |
| 87 | return this.tasksQueueMaxSize() |
| 88 | } |
| 89 | return { |
| 90 | tasks: { |
| 91 | executed: 0, |
| 92 | executing: 0, |
| 93 | get queued (): number { |
| 94 | return getTasksQueueSize() |
| 95 | }, |
| 96 | get maxQueued (): number { |
| 97 | return getTasksQueueMaxSize() |
| 98 | }, |
| 99 | failed: 0 |
| 100 | }, |
| 101 | runTime: { |
| 102 | history: new CircularArray() |
| 103 | }, |
| 104 | waitTime: { |
| 105 | history: new CircularArray() |
| 106 | }, |
| 107 | elu: { |
| 108 | idle: { |
| 109 | history: new CircularArray() |
| 110 | }, |
| 111 | active: { |
| 112 | history: new CircularArray() |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Gets the worker id. |
| 120 | * |
| 121 | * @param worker - The worker. |
| 122 | * @param workerType - The worker type. |
| 123 | * @returns The worker id. |
| 124 | */ |
| 125 | private getWorkerId ( |
| 126 | worker: Worker, |
| 127 | workerType: WorkerType |
| 128 | ): number | undefined { |
| 129 | if (workerType === WorkerTypes.thread) { |
| 130 | return worker.threadId |
| 131 | } else if (workerType === WorkerTypes.cluster) { |
| 132 | return worker.id |
| 133 | } |
| 134 | } |
| 135 | } |