X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=docs%2Fclasses%2FDynamicThreadPool.html;h=7585f92eaff5c81028dd186af3421b630917e0fb;hb=f7d06005106fbf8e845731e6652dd676b765f60e;hp=02e1b442e92a7705258996de8b9e4622c676ec49;hpb=56960396878dec81e3ebeea5b76387efca8cc2dc;p=poolifier.git diff --git a/docs/classes/DynamicThreadPool.html b/docs/classes/DynamicThreadPool.html index 02e1b442..86171c79 100644 --- a/docs/classes/DynamicThreadPool.html +++ b/docs/classes/DynamicThreadPool.html @@ -1,4 +1,4 @@ -DynamicThreadPool | poolifier
+DynamicThreadPool | poolifier - v2.6.27
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poolifier
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  • poolifier - v2.6.27
    @@ -19,30 +19,33 @@

    A thread pool with a dynamic number of threads, but a guaranteed minimum number of threads.

    This thread pool creates new threads when the others are busy, up to the maximum number of threads. When the maximum number of threads is reached and workers are busy, an event is emitted. If you want to listen to this event, use the pool's emitter.

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    Author

    Alessandro Pio Ardizio

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    Author

    Alessandro Pio Ardizio

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    Since

    0.0.1

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    Since

    0.0.1

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    Type Parameters

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        Data = unknown

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        Type of data sent to the worker. This can only be serializable data.

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        Data = unknown

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        Type of data sent to the worker. This can only be structured-cloneable data.

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        Response = unknown

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        Type of execution response. This can only be serializable data.

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    Response = unknown

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    Type of execution response. This can only be structured-cloneable data.

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    Hierarchy

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  • Defined in src/pools/thread/dynamic.ts:15
  • @@ -50,228 +53,310 @@ When the maximum number of threads is reached and workers are busy, an event is

    Constructors

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      • Constructs a new poolifier dynamic thread pool.

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        Type Parameters

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            Data = unknown

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            Data = unknown

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            Response = unknown

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        Response = unknown

      Parameters

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        min: number
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        min: number

        Minimum number of threads which are always active.

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      max: number
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      max: number

      Maximum number of threads that can be created by this pool.

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    filePath: string
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    filePath: string

    Path to an implementation of a ThreadWorker file, which can be relative or absolute.

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    opts: PoolOptions<ThreadWorkerWithMessageChannel> = {}
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    opts: ThreadPoolOptions = {}

    Options for this dynamic thread pool.

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    Returns DynamicThreadPool<Data, Response>

    Properties

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    emitter?: PoolEmitter
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    emitter?: PoolEmitter

    Emitter on which events can be listened to.

    Events that can currently be listened to:

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    • 'full': Emitted when the pool is dynamic and full.
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    • 'busy': Emitted when the pool is busy.
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    • 'ready': Emitted when the number of workers created in the pool has reached the minimum size expected and are ready.
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    • 'busy': Emitted when the number of workers created in the pool has reached the maximum size expected and are executing at least one task.
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    • 'full': Emitted when the pool is dynamic and the number of workers created has reached the maximum size expected.
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    • 'destroy': Emitted when the pool is destroyed.
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    • 'error': Emitted when an uncaught error occurs.
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    • 'taskError': Emitted when an error occurs while executing a task.
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    filePath: string
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    Path to the worker-file.

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    filePath: string
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    Path to the worker file.

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    max: number
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  • Defined in src/pools/abstract-pool.ts:109
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    max: number

    Maximum number of threads that can be created by this pool.

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    numberOfWorkers: number
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  • Defined in src/pools/thread/dynamic.ts:29
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    numberOfWorkers: number

    Number of workers that this pool should manage.

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    Options for the pool.

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    Options for this fixed thread pool.

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    promiseResponseMap: Map<string, PromiseResponseWrapper<ThreadWorkerWithMessageChannel, Response>> = ...
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    The execution response promise map.

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  • Defined in src/pools/thread/fixed.ts:49
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    promiseResponseMap: Map<string, PromiseResponseWrapper<Response>> = ...
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    The task execution response promise map.

    • key: The message id of each submitted task.
    • value: An object that contains the worker, the execution response promise resolve and reject callbacks.

    When we receive a message from the worker, we get a map entry with the promise resolve/reject bound to the message id.

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    workerChoiceStrategyContext: WorkerChoiceStrategyContext<ThreadWorkerWithMessageChannel, Data, Response>
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  • Defined in src/pools/abstract-pool.ts:75
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    workerChoiceStrategyContext: WorkerChoiceStrategyContext<Worker, Data, Response>

    Worker choice strategy context referencing a worker choice algorithm implementation.

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    Default to a round robin algorithm.

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    workerNodes: WorkerNode<ThreadWorkerWithMessageChannel, Data>[] = []
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  • Defined in src/pools/abstract-pool.ts:81
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    workerNodes: IWorkerNode<Worker, Data>[] = []

    Pool worker nodes.

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  • Defined in src/pools/abstract-pool.ts:62
  • Accessors

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    • get full(): boolean
    • Whether the pool is full or not.

      The pool filling boolean status.

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      Returns boolean

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    • get info(): PoolInfo
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      Number of tasks queued in the pool.

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      Pool information.

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      Returns number

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    • get maxSize(): number
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      Number of tasks running in the pool.

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      The pool maximum size.

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      Returns number

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    • get minSize(): number
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      The pool minimum size.

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      Returns number

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    • get ready(): boolean
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    • +

      The pool readiness boolean status.

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      Returns boolean

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    • get type(): "fixed" | "dynamic"
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      Pool type.

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      The pool type.

      If it is 'dynamic', it provides the max property.

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      Returns PoolType

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  • Defined in src/pools/thread/dynamic.ts:38
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    Methods

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      Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes.

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      Can be used to update the maxListeners or binding the main-worker<->worker connection if not bind by default.

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      Method hooked up after a worker node has been newly created. +Can be overridden.

      Parameters

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      Returns void

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      workerNodeKey: number
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      The newly created worker node key.

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    Returns void

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    • Hook executed before the worker task execution. Can be overridden.

      @@ -322,199 +412,367 @@ Can be overridden.

      Parameters

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        workerNodeKey: number
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        workerNodeKey: number

        The worker node key.

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      Returns void

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      task: Task<Data>
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      The task to execute.

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    Returns void

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      Creates a new worker and sets it up completely in the pool worker nodes.

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      Creates a new, completely set up dynamic worker node.

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      Returns number

      New, completely set up dynamic worker node key.

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      Returns

      New, completely set up worker.

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      workerNodeKey: number
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      The worker node key.

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    Returns Promise<void>

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      Performs the task specified in the constructor with the data parameter.

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      Returns

      Promise that will be resolved when the task is successfully completed.

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      Enables/disables the worker tasks queue in this pool.

      Parameters

      • -
        data: Data
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        The input for the specified task. This can only be serializable data.

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      Returns Promise<Response>

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      Optional tasksQueueOptions: TasksQueueOptions
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      The worker tasks queue options.

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    Returns void

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      Executes the specified function in the worker constructor with the task data input parameter.

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      Parameters

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        Optional data: Data
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        The optional task input data for the specified task function. This can only be structured-cloneable data.

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        Optional name: string
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        The optional name of the task function to execute. If not specified, the default task function will be executed.

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        Optional transferList: TransferListItem[]
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        An optional array of transferable objects to transfer ownership of. Ownership of the transferred objects is given to the pool's worker_threads worker and they should not be used in the main thread afterwards.

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      Returns Promise<Response>

      Promise that will be fulfilled when the task is completed.

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      Finds a free worker node key based on the number of tasks the worker has applied.

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      If a worker is found with 0 running tasks, it is detected as free and its worker node key is returned.

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      If no free worker is found, -1 is returned.

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      Returns

      A worker node key if there is one, -1 otherwise.

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      Returns number

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      Registers a listener callback on the given worker.

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      Registers a listener callback on the worker given its worker node key.

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      Type Parameters

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          Message

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      Message

    Parameters

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      messageChannel: ThreadWorkerWithMessageChannel
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      The worker which should register a listener.

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      workerNodeKey: number
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      The worker node key.

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      listener: ((message: MessageValue<Message, unknown>) => void)
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      listener: ((message) => void)

      The message listener callback.

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    Returns void

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    Returns void

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    Returns void

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    Returns void

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  • Defined in src/pools/abstract-pool.ts:1109
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    On This Page

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    On This Page

    +
  • constructor
  • +
  • emitter
  • +
  • filePath
  • +
  • max
  • +
  • numberOfWorkers
  • +
  • opts
  • +
  • promiseResponseMap
  • +
  • workerChoiceStrategyContext
  • +
  • workerNodes
  • +
  • busy
  • +
  • full
  • +
  • info
  • +
  • maxSize
  • +
  • minSize
  • +
  • ready
  • +
  • type
  • +
  • utilization
  • +
  • worker
  • +
  • afterTaskExecutionHook
  • +
  • afterWorkerNodeSetup
  • +
  • beforeTaskExecutionHook
  • +
  • checkDynamicPoolSize
  • +
  • createAndSetupDynamicWorkerNode
  • +
  • createAndSetupWorkerNode
  • +
  • createWorker
  • +
  • destroy
  • +
  • destroyWorkerNode
  • +
  • enableTasksQueue
  • +
  • execute
  • +
  • flushTasksQueue
  • +
  • getWorkerInfo
  • +
  • internalBusy
  • +
  • isMain
  • +
  • listTaskFunctions
  • +
  • registerWorkerMessageListener
  • +
  • sendKillMessageToWorker
  • +
  • sendStartupMessageToWorker
  • +
  • sendToWorker
  • +
  • setTasksQueueOptions
  • +
  • setWorkerChoiceStrategy
  • +
  • setWorkerChoiceStrategyOptions
  • +
  • setupHook
  • +
  • workerListener
  • +
  • AbstractPool
  • +
  • AbstractWorker
  • +
  • CircularArray
  • +
  • ClusterWorker
  • +
  • DynamicClusterPool
  • +
  • DynamicThreadPool
  • +
  • FixedClusterPool
  • +
  • FixedThreadPool
  • +
  • PoolEmitter
  • +
  • Queue
  • +
  • ThreadWorker
  • +
  • WorkerChoiceStrategyContext
  • +
  • ClusterPoolOptions
  • +
  • EventLoopUtilizationMeasurementStatistics
  • +
  • IPool
  • +
  • IWorker
  • +
  • IWorkerChoiceStrategy
  • +
  • IWorkerNode
  • +
  • MeasurementOptions
  • +
  • MeasurementStatistics
  • +
  • MeasurementStatisticsRequirements
  • +
  • MessageValue
  • +
  • PoolInfo
  • +
  • PoolOptions
  • +
  • PromiseResponseWrapper
  • +
  • StrategyPolicy
  • +
  • Task
  • +
  • TaskError
  • +
  • TaskPerformance
  • +
  • TaskStatistics
  • +
  • TaskStatisticsRequirements
  • +
  • TasksQueueOptions
  • +
  • ThreadPoolOptions
  • +
  • WorkerChoiceStrategyOptions
  • +
  • WorkerInfo
  • +
  • WorkerOptions
  • +
  • WorkerStatistics
  • +
  • WorkerUsage
  • +
  • ErrorHandler
  • +
  • ExitHandler
  • +
  • KillBehavior
  • +
  • KillHandler
  • +
  • Measurement
  • +
  • MessageHandler
  • +
  • OnlineHandler
  • +
  • PoolEvent
  • +
  • PoolType
  • +
  • TaskAsyncFunction
  • +
  • TaskFunction
  • +
  • TaskFunctions
  • +
  • TaskSyncFunction
  • +
  • WorkerChoiceStrategy
  • +
  • WorkerType
  • +
  • KillBehaviors
  • +
  • Measurements
  • +
  • PoolEvents
  • +
  • PoolTypes
  • +
  • WorkerChoiceStrategies
  • +
  • WorkerTypes
  • +
  • availableParallelism
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