X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=docs%2Fclasses%2FFixedThreadPool.html;h=e0337f6da7d7ce5d90ae9a370f853298812aa781;hb=2a6631992868d900762f62e4c228dce4e4ee549a;hp=57265e609f7b34bbbea60218553d07ed0907f5fb;hpb=7cd8af0033b35def46016a78ea9be1ee516480bf;p=poolifier.git diff --git a/docs/classes/FixedThreadPool.html b/docs/classes/FixedThreadPool.html index 57265e60..405c43bc 100644 --- a/docs/classes/FixedThreadPool.html +++ b/docs/classes/FixedThreadPool.html @@ -1,4 +1,4 @@ -FixedThreadPool | poolifier
+FixedThreadPool | poolifier
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  • poolifier
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    Class FixedThreadPool<Data, Response>

A thread pool with a fixed number of threads.

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It is possible to perform tasks in sync or asynchronous mode as you prefer.

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This pool selects the threads in a round robin fashion.

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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 response of execution. 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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Constructors

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    • Constructs a new poolifier fixed 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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      numberOfThreads: number
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      numberOfThreads: number

      Number of threads for 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 fixed thread pool.

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    Returns FixedThreadPool<Data, Response>

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    Returns FixedThreadPool<Data, Response>

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  • Defined in src/pools/thread/fixed.ts:48
  • Properties

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    emitter?: PoolEmitter
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    Inherit Doc

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    filePath: string
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    Path to the worker-file.

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    numberOfWorkers: number
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    emitter?: PoolEmitter
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    Emitter on which events can be listened to.

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    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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    • '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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    numberOfWorkers: number

    Number of workers that this pool should manage.

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    Options for the pool.

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

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    Options for this fixed thread pool.

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

    • key: The message id of each submitted task.
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    • value: An object that contains the worker, the promise resolve and reject callbacks.
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    • value: An object that contains the worker, the execution response promise resolve and reject callbacks.
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    When we receive a message from the worker we get a map entry with the promise resolve/reject bound to the message.

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    workerChoiceStrategyContext: WorkerChoiceStrategyContext<ThreadWorkerWithMessageChannel, Data, Response>
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    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<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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    workers: WorkerType<ThreadWorkerWithMessageChannel>[] = []
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    Inherit Doc

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    workerNodes: WorkerNode<Worker, Data>[] = []
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    Pool worker nodes.

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  • Defined in src/pools/abstract-pool.ts:55
  • Accessors

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

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      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 concurrently running 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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      Inherit Doc

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      Returns PoolType

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    • get minSize(): number
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      Pool minimum size.

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      Returns number

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    • get runTime(): number
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      Gets the pool run time.

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      Returns number

      The pool run time in milliseconds.

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

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

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      Returns "fixed" | "dynamic"

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  • Defined in src/pools/thread/fixed.ts:81
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    Methods

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        Hook executed after the worker task promise resolution. +

        Hook executed after the worker task execution. Can be overridden.

        Parameters

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        message: MessageValue<Response, unknown>
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        message: MessageValue<Response, unknown>

        The received message.

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      Returns void

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    Returns void

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      Inherit Doc

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

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      Parameters

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      Returns void

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      worker: Worker
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      The newly created worker.

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    Returns void

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      Hook executed before the worker task promise resolution. +

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

      Parameters

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        workerKey: number
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        The worker key.

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      Returns void

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    Returns void

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      Creates a new worker for this pool and sets it up completely.

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

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      Returns Worker

      New, completely set up dynamic worker.

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      Returns

      New, completely set up worker.

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      worker: Worker
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      A worker within workerNodes.

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    Returns Promise<void>

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      Inherit Doc

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      Enables/disables the worker tasks queue in this pool.

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      Parameters

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        data: Data
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      Returns Promise<Response>

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      Inherit Doc

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      Returns number

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      Inherit Doc

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      Type Parameters

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        enable: boolean
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        Whether to enable or disable the worker tasks queue.

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        Message

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

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        listener: ((message: MessageValue<Message, unknown>) => void)
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          • (message: MessageValue<Message, unknown>): void
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            Optional name: string
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            The name of the worker function to execute. If not specified, the default worker function will be executed.

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      Returns Promise<Response>

      Promise that will be fulfilled when the task is completed.

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      Sends a message to the given worker.

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      Parameters

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        message: MessageValue<Message, unknown>
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      Returns void

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    Returns void

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    Returns void

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      Removes the given worker from the pool.

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      Sets the worker tasks queue options in this pool.

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      Returns void

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    Returns void

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      Inherit Doc

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      Sets the worker choice strategy in this pool.

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      Parameters

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        worker: ThreadWorkerWithMessageChannel
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        workerChoiceStrategy: "ROUND_ROBIN" | "LEAST_USED" | "LEAST_BUSY" | "LEAST_ELU" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN" | "INTERLEAVED_WEIGHTED_ROUND_ROBIN"
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        The worker choice strategy.

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        message: MessageValue<Data, unknown>
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      Returns void

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      Optional workerChoiceStrategyOptions: WorkerChoiceStrategyOptions
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      The worker choice strategy options.

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    Returns void

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      Inherit Doc

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      Sets the worker choice strategy options in this pool.

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      Parameters

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        workerChoiceStrategy: "ROUND_ROBIN" | "LESS_USED" | "LESS_BUSY" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN"
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      Returns void

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    Returns void

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      Setup hook that can be overridden by a Poolifier pool implementation -to run code before workers are created in the abstract constructor. -Can be overridden

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      Returns void

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      Setup hook to execute code before worker nodes are created in the abstract constructor. +Can be overridden.

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      Returns void

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      This function is the listener registered for each worker.

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      Returns

      The listener function to execute when a message is received from a worker.

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      This function is the listener registered for each worker message.

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      Returns ((message: MessageValue<Response, unknown>) => void)

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      Returns ((message) => void)

      The listener function to execute when a message is received from a worker.

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        • (message: MessageValue<Response, unknown>): void
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          • (message): void
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            This function is the listener registered for each worker.

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            Returns

            The listener function to execute when a message is received from a worker.

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            This function is the listener registered for each worker message.

            Parameters

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              message: MessageValue<Response, unknown>
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            Returns void

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      Returns void

      The listener function to execute when a message is received from a worker.

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    On This Page

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  • constructor
  • +
  • emitter
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  • filePath
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  • numberOfWorkers
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  • opts
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  • promiseResponseMap
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  • workerChoiceStrategyContext
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  • workerNodes
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  • busy
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  • full
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  • info
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  • maxSize
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  • minSize
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  • runTime
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  • type
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  • utilization
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  • worker
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  • afterTaskExecutionHook
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  • afterWorkerSetup
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  • beforeTaskExecutionHook
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  • createAndSetupDynamicWorker
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  • createAndSetupWorker
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  • createWorker
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  • destroy
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  • destroyWorker
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  • enableTasksQueue
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  • execute
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  • internalBusy
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  • isMain
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  • sendToWorker
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  • setTasksQueueOptions
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  • setWorkerChoiceStrategy
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  • setWorkerChoiceStrategyOptions
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  • setupHook
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  • workerListener
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