| 1 | import type { EventLoopUtilization } from 'node:perf_hooks' |
| 2 | import type { MessagePort, TransferListItem } from 'node:worker_threads' |
| 3 | import type { KillBehavior } from './worker/worker-options' |
| 4 | |
| 5 | /** |
| 6 | * Task error. |
| 7 | * |
| 8 | * @typeParam Data - Type of data sent to the worker triggering an error. This can only be structured-cloneable data. |
| 9 | */ |
| 10 | export interface TaskError<Data = unknown> { |
| 11 | /** |
| 12 | * Task name triggering the error. |
| 13 | */ |
| 14 | readonly name: string |
| 15 | /** |
| 16 | * Error message. |
| 17 | */ |
| 18 | readonly message: string |
| 19 | /** |
| 20 | * Data triggering the error. |
| 21 | */ |
| 22 | readonly data?: Data |
| 23 | } |
| 24 | |
| 25 | /** |
| 26 | * Task performance. |
| 27 | * |
| 28 | * @internal |
| 29 | */ |
| 30 | export interface TaskPerformance { |
| 31 | /** |
| 32 | * Task name. |
| 33 | */ |
| 34 | readonly name: string |
| 35 | /** |
| 36 | * Task performance timestamp. |
| 37 | */ |
| 38 | readonly timestamp: number |
| 39 | /** |
| 40 | * Task runtime. |
| 41 | */ |
| 42 | readonly runTime?: number |
| 43 | /** |
| 44 | * Task event loop utilization. |
| 45 | */ |
| 46 | readonly elu?: EventLoopUtilization |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Performance statistics computation. |
| 51 | * |
| 52 | * @internal |
| 53 | */ |
| 54 | export interface WorkerStatistics { |
| 55 | runTime: boolean |
| 56 | elu: boolean |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Message object that is passed as a task between main worker and worker. |
| 61 | * |
| 62 | * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. |
| 63 | * @internal |
| 64 | */ |
| 65 | export interface Task<Data = unknown> { |
| 66 | /** |
| 67 | * Worker id. |
| 68 | */ |
| 69 | readonly workerId: number |
| 70 | /** |
| 71 | * Task name. |
| 72 | */ |
| 73 | readonly name?: string |
| 74 | /** |
| 75 | * Task input data that will be passed to the worker. |
| 76 | */ |
| 77 | readonly data?: Data |
| 78 | /** |
| 79 | * Array of transferable objects. |
| 80 | */ |
| 81 | readonly transferList?: TransferListItem[] |
| 82 | /** |
| 83 | * Timestamp. |
| 84 | */ |
| 85 | readonly timestamp?: number |
| 86 | /** |
| 87 | * Task UUID. |
| 88 | */ |
| 89 | readonly taskId?: string |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Message object that is passed between main worker and worker. |
| 94 | * |
| 95 | * @typeParam Data - Type of data sent to the worker or execution response. This can only be structured-cloneable data. |
| 96 | * @typeParam ErrorData - Type of data sent to the worker triggering an error. This can only be structured-cloneable data. |
| 97 | * @internal |
| 98 | */ |
| 99 | export interface MessageValue<Data = unknown, ErrorData = unknown> |
| 100 | extends Task<Data> { |
| 101 | /** |
| 102 | * Kill code. |
| 103 | */ |
| 104 | readonly kill?: KillBehavior | true | 'success' | 'failure' |
| 105 | /** |
| 106 | * Task error. |
| 107 | */ |
| 108 | readonly taskError?: TaskError<ErrorData> |
| 109 | /** |
| 110 | * Task performance. |
| 111 | */ |
| 112 | readonly taskPerformance?: TaskPerformance |
| 113 | /** |
| 114 | * Task function names. |
| 115 | */ |
| 116 | readonly taskFunctions?: string[] |
| 117 | /** |
| 118 | * Whether the worker computes the given statistics or not. |
| 119 | */ |
| 120 | readonly statistics?: WorkerStatistics |
| 121 | /** |
| 122 | * Whether the worker is ready or not. |
| 123 | */ |
| 124 | readonly ready?: boolean |
| 125 | /** |
| 126 | * Whether the worker starts or stops its activity check. |
| 127 | */ |
| 128 | readonly checkActive?: boolean |
| 129 | /** |
| 130 | * Message port. |
| 131 | */ |
| 132 | readonly port?: MessagePort |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * An object holding the task execution response promise resolve/reject callbacks. |
| 137 | * |
| 138 | * @typeParam Response - Type of execution response. This can only be structured-cloneable data. |
| 139 | * @internal |
| 140 | */ |
| 141 | export interface PromiseResponseWrapper<Response = unknown> { |
| 142 | /** |
| 143 | * Resolve callback to fulfill the promise. |
| 144 | */ |
| 145 | readonly resolve: (value: Response | PromiseLike<Response>) => void |
| 146 | /** |
| 147 | * Reject callback to reject the promise. |
| 148 | */ |
| 149 | readonly reject: (reason?: unknown) => void |
| 150 | /** |
| 151 | * The worker node key executing the task. |
| 152 | */ |
| 153 | readonly workerNodeKey: number |
| 154 | } |
| 155 | |
| 156 | export type Writable<T> = { -readonly [P in keyof T]: T[P] } |