import {
SHARE_ENV,
Worker as ThreadWorker,
- type WorkerOptions
+ type WorkerOptions,
} from 'node:worker_threads'
import type { MessageValue, Task } from '../utility-types.js'
import {
type MeasurementStatisticsRequirements,
WorkerChoiceStrategies,
- type WorkerChoiceStrategy
+ type WorkerChoiceStrategy,
} from './selection-strategies/selection-strategies-types.js'
import type { WorkerChoiceStrategiesContext } from './selection-strategies/worker-choice-strategies-context.js'
import {
type WorkerNodeOptions,
type WorkerType,
WorkerTypes,
- type WorkerUsage
+ type WorkerUsage,
} from './worker.js'
/**
{
aggregate: false,
average: false,
- median: false
+ median: false,
}
export const getDefaultTasksQueueOptions = (
size: Math.pow(poolMaxSize, 2),
concurrency: 1,
taskStealing: true,
- tasksStealingOnBackPressure: true,
- tasksFinishedTimeout: 2000
+ tasksStealingOnBackPressure: false,
+ tasksFinishedTimeout: 2000,
}
}
}
}
+export const checkValidPriority = (priority: number | undefined): void => {
+ if (priority != null && !Number.isSafeInteger(priority)) {
+ throw new TypeError(`Invalid property 'priority': '${priority.toString()}'`)
+ }
+ if (
+ priority != null &&
+ Number.isSafeInteger(priority) &&
+ (priority < -20 || priority > 19)
+ ) {
+ throw new RangeError("Property 'priority' must be between -20 and 19")
+ }
+}
+
export const checkValidWorkerChoiceStrategy = (
workerChoiceStrategy: WorkerChoiceStrategy | undefined
): void => {
tasksQueueOptions.concurrency <= 0
) {
throw new RangeError(
- `Invalid worker node tasks concurrency: ${tasksQueueOptions.concurrency} is a negative integer or zero`
+ `Invalid worker node tasks concurrency: ${tasksQueueOptions.concurrency.toString()} is a negative integer or zero`
)
}
if (
}
if (tasksQueueOptions?.size != null && tasksQueueOptions.size <= 0) {
throw new RangeError(
- `Invalid worker node tasks queue size: ${tasksQueueOptions.size} is a negative integer or zero`
+ `Invalid worker node tasks queue size: ${tasksQueueOptions.size.toString()} is a negative integer or zero`
)
}
}
}
if (!isPlainObject(opts)) {
throw new TypeError(
- 'Cannot construct a worker node with invalid options: must be a plain object'
+ 'Cannot construct a worker node with invalid worker node options: must be a plain object'
)
}
if (opts.tasksQueueBackPressureSize == null) {
'Cannot construct a worker node with a tasks queue back pressure size option that is not a positive integer'
)
}
+ if (opts.tasksQueueBucketSize == null) {
+ throw new TypeError(
+ 'Cannot construct a worker node without a tasks queue bucket size option'
+ )
+ }
+ if (!Number.isSafeInteger(opts.tasksQueueBucketSize)) {
+ throw new TypeError(
+ 'Cannot construct a worker node with a tasks queue bucket size option that is not an integer'
+ )
+ }
+ if (opts.tasksQueueBucketSize <= 0) {
+ throw new RangeError(
+ 'Cannot construct a worker node with a tasks queue bucket size option that is not a positive integer'
+ )
+ }
+ if (opts.tasksQueuePriority == null) {
+ throw new TypeError(
+ 'Cannot construct a worker node without a tasks queue priority option'
+ )
+ }
+ if (typeof opts.tasksQueuePriority !== 'boolean') {
+ throw new TypeError(
+ 'Cannot construct a worker node with a tasks queue priority option that is not a boolean'
+ )
+ }
}
/**
* Updates the given measurement statistics.
- *
* @param measurementStatistics - The measurement statistics to update.
* @param measurementRequirements - The measurement statistics requirements.
* @param measurementValue - The measurement value.
(measurementStatistics.aggregate ?? 0) + measurementValue
measurementStatistics.minimum = min(
measurementValue,
- measurementStatistics.minimum ?? Infinity
+ measurementStatistics.minimum ?? Number.POSITIVE_INFINITY
)
measurementStatistics.maximum = max(
measurementValue,
- measurementStatistics.maximum ?? -Infinity
+ measurementStatistics.maximum ?? Number.NEGATIVE_INFINITY
)
if (measurementRequirements.average || measurementRequirements.median) {
- measurementStatistics.history.push(measurementValue)
+ measurementStatistics.history.put(measurementValue)
if (measurementRequirements.average) {
- measurementStatistics.average = average(measurementStatistics.history)
+ measurementStatistics.average = average(
+ measurementStatistics.history.toArray()
+ )
} else if (measurementStatistics.average != null) {
delete measurementStatistics.average
}
if (measurementRequirements.median) {
- measurementStatistics.median = median(measurementStatistics.history)
+ measurementStatistics.median = median(
+ measurementStatistics.history.toArray()
+ )
} else if (measurementStatistics.median != null) {
delete measurementStatistics.median
}
Data = unknown,
Response = unknown
>(
- workerChoiceStrategyContext:
+ workerChoiceStrategiesContext:
| WorkerChoiceStrategiesContext<Worker, Data, Response>
| undefined,
workerUsage: WorkerUsage,
const taskWaitTime = timestamp - (task.timestamp ?? timestamp)
updateMeasurementStatistics(
workerUsage.waitTime,
- workerChoiceStrategyContext?.getTaskStatisticsRequirements().waitTime,
+ workerChoiceStrategiesContext?.getTaskStatisticsRequirements().waitTime,
taskWaitTime
)
}
Data = unknown,
Response = unknown
>(
- workerChoiceStrategyContext:
+ workerChoiceStrategiesContext:
| WorkerChoiceStrategiesContext<Worker, Data, Response>
| undefined,
workerUsage: WorkerUsage,
}
updateMeasurementStatistics(
workerUsage.runTime,
- workerChoiceStrategyContext?.getTaskStatisticsRequirements().runTime,
+ workerChoiceStrategiesContext?.getTaskStatisticsRequirements().runTime,
message.taskPerformance?.runTime ?? 0
)
}
Data = unknown,
Response = unknown
>(
- workerChoiceStrategyContext:
+ workerChoiceStrategiesContext:
| WorkerChoiceStrategiesContext<Worker, Data, Response>
| undefined,
workerUsage: WorkerUsage,
return
}
const eluTaskStatisticsRequirements =
- workerChoiceStrategyContext?.getTaskStatisticsRequirements().elu
+ workerChoiceStrategiesContext?.getTaskStatisticsRequirements().elu
updateMeasurementStatistics(
workerUsage.elu.active,
eluTaskStatisticsRequirements,
export const createWorker = <Worker extends IWorker>(
type: WorkerType,
filePath: string,
- opts: { env?: Record<string, unknown>, workerOptions?: WorkerOptions }
+ opts: { env?: Record<string, unknown>; workerOptions?: WorkerOptions }
): Worker => {
switch (type) {
case WorkerTypes.thread:
return new ThreadWorker(filePath, {
env: SHARE_ENV,
- ...opts.workerOptions
+ ...opts.workerOptions,
}) as unknown as Worker
case WorkerTypes.cluster:
return cluster.fork(opts.env) as unknown as Worker
/**
* Returns the worker type of the given worker.
- *
* @param worker - The worker to get the type of.
* @returns The worker type of the given worker.
* @internal
/**
* Returns the worker id of the given worker.
- *
* @param worker - The worker to get the id of.
* @returns The worker id of the given worker.
* @internal
resolve(events)
return
}
- workerNode.on(workerNodeEvent, () => {
- ++events
- if (events === numberOfEventsToWait) {
- resolve(events)
- }
- })
+ switch (workerNodeEvent) {
+ case 'idle':
+ case 'backPressure':
+ case 'taskFinished':
+ workerNode.on(workerNodeEvent, () => {
+ ++events
+ if (events === numberOfEventsToWait) {
+ resolve(events)
+ }
+ })
+ break
+ default:
+ throw new Error('Invalid worker node event')
+ }
if (timeout >= 0) {
setTimeout(() => {
resolve(events)
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