X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=docs%2Fclasses%2FFixedClusterPool.html;h=1716132ec7d23928b8eb717416704e153e50eace;hb=00471704103b2a235432b950ddc5aec84a613e07;hp=129160a1ea042c6bdbec37bdb05046a348e45c60;hpb=4f487526a63c873d168386250b40ad8103c5a4d8;p=poolifier.git diff --git a/docs/classes/FixedClusterPool.html b/docs/classes/FixedClusterPool.html index 129160a1..1716132e 100644 --- a/docs/classes/FixedClusterPool.html +++ b/docs/classes/FixedClusterPool.html @@ -1,4 +1,4 @@ -FixedClusterPool | poolifier

+FixedClusterPool | poolifier - v2.6.30

@@ -17,8 +17,6 @@

Class FixedClusterPool<Data, Response>

A cluster pool with a fixed number of workers.

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

This pool selects the workers in a round robin fashion.

Author

Christopher Quadflieg

@@ -30,12 +28,12 @@

Data = unknown
-
Type of data sent to the worker. This can only be serializable data.
+
Type of data sent to the worker. This can only be structured-cloneable data.
Response = unknown
-
Type of execution response. This can only be serializable data.
+
Type of execution response. This can only be structured-cloneable data.

@@ -47,7 +45,7 @@

DynamicClusterPool

Defined in src/pools/cluster/fixed.ts:33

@@ -61,6 +59,7 @@

Properties

emitter? filePath +max? numberOfWorkers opts promiseResponseMap @@ -72,26 +71,35 @@

busy full info -maxSize -minSize +maxSize +minSize +ready type +utilization worker

Defined in src/pools/cluster/fixed.ts:44

Properties

@@ -146,16 +154,19 @@

Emitter on which events can be listened to.

Events that can currently be listened to:

'full': Emitted when the pool is dynamic and full.
'busy': Emitted when the pool is busy.
'ready': Emitted when the number of workers created in the pool has reached the minimum size expected and are ready.
'busy': Emitted when the number of workers created in the pool has reached the maximum size expected and are executing at least one task.
'full': Emitted when the pool is dynamic and the number of workers created has reached the maximum size expected.
'destroy': Emitted when the pool is destroyed.
'error': Emitted when an uncaught error occurs.
'taskError': Emitted when an error occurs while executing a task.
'backPressure': Emitted when all worker nodes have back pressure (i.e. their tasks queue is full: queue size >= pool maximum size^2).

Defined in src/pools/abstract-pool.ts:65

`Protected` `Readonly` filePath

filePath: string

@@ -164,7 +175,16 @@

Defined in src/pools/abstract-pool.ts:110

`Protected` `Optional` `Readonly` max

max?: number

Dynamic pool maximum size property placeholder.

`Protected` `Readonly` numberOfWorkers

numberOfWorkers: number

@@ -173,7 +193,7 @@

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

`Protected` `Readonly` opts

opts: ClusterPoolOptions = {}

@@ -182,11 +202,11 @@

Defined in src/pools/cluster/fixed.ts:47

`Protected` promiseResponseMap

promiseResponseMap: Map<string, PromiseResponseWrapper<Worker, Response>> = ...

The execution response promise map.

promiseResponseMap: Map<string, PromiseResponseWrapper<Response>> = ...

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.

Defined in src/pools/abstract-pool.ts:75

`Protected` workerChoiceStrategyContext

workerChoiceStrategyContext: WorkerChoiceStrategyContext<Worker, Data, Response>

Worker choice strategy context referencing a worker choice algorithm implementation.

Default to a round robin algorithm.

Defined in src/pools/abstract-pool.ts:81

`Readonly` workerNodes

workerNodes: WorkerNode<Worker, Data>[] = []

`Readonly` `Internal` workerNodes

workerNodes: IWorkerNode<Worker, Data>[] = []

Pool worker nodes.

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

Accessors

@@ -230,7 +249,7 @@

Defined in src/pools/cluster/fixed.ts:120

`Protected` full

Defined in src/pools/abstract-pool.ts:641

info

Defined in src/pools/abstract-pool.ts:324

`Protected` maxSize

get maxSize(): number
-
Pool maximum size.
+
The pool maximum size.

Returns number
-
Overrides AbstractPool.maxSize
+
Inherited from AbstractPool.maxSize
- Defined in src/pools/cluster/fixed.ts:118

Defined in src/pools/abstract-pool.ts:525

`Protected` minSize

get minSize(): number
-
Pool minimum size.
+
The pool minimum size.

Returns number
-
Overrides AbstractPool.minSize
+
Inherited from AbstractPool.minSize
- Defined in src/pools/cluster/fixed.ts:113

Defined in src/pools/abstract-pool.ts:518

`Private` ready

get ready(): boolean
+
The pool readiness boolean status.
+
+
Returns boolean
+
+
Inherited from AbstractPool.ready
+
- Defined in src/pools/abstract-pool.ts:470

`Protected` type

get type(): "fixed" | "dynamic"
-
Pool type.
+
The pool type.

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

Returns "fixed" | "dynamic"
Overrides AbstractPool.type
- Defined in src/pools/cluster/fixed.ts:103

Defined in src/pools/cluster/fixed.ts:110

`Private` utilization

get utilization(): number
+
The approximate pool utilization.
+
+
Returns number
The pool utilization.
+ +
+
Inherited from AbstractPool.utilization
+
- Defined in src/pools/abstract-pool.ts:487

`Protected` worker

get worker(): "cluster" | "thread"
get worker(): "thread" | "cluster"
-
Gets the worker type.
+
The worker type.

-
Returns "cluster" | "thread"
+
Returns "thread" | "cluster"
Overrides AbstractPool.worker
- Defined in src/pools/cluster/fixed.ts:108

Defined in src/pools/cluster/fixed.ts:115

Methods

`Protected` afterTaskExecutionHook

afterTaskExecutionHook(worker, message): void
afterTaskExecutionHook(workerNodeKey, message): void
Hook executed after the worker task execution. Can be overridden.
@@ -319,12 +363,12 @@ Can be overridden.

Parameters
- -
  worker: Worker
  -
  The worker.
  +
  workerNodeKey: number
  +
  The worker node key.
- -
  message: MessageValue<Response, Worker | MessagePort>
  +
  message: MessageValue<Response, unknown>
  
  The received message.
@@ -332,32 +376,32 @@ Can be overridden.
Inherited from AbstractPool.afterTaskExecutionHook
- Defined in src/pools/abstract-pool.ts:467

`Protected` afterWorkerSetup

afterWorkerSetup(worker): void
Defined in src/pools/abstract-pool.ts:827

`Protected` afterWorkerNodeSetup

afterWorkerNodeSetup(workerNodeKey): void
-
Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes.
-
Can be used to update the maxListeners or binding the main-worker<->worker connection if not bind by default.
+
Method hooked up after a worker node has been newly created. +Can be overridden.
Parameters
- -
  worker: Worker
  -
  The newly created worker.
  +
  workerNodeKey: number
  +
  The newly created worker node key.
Returns void
-
Overrides AbstractPool.afterWorkerSetup
+
Inherited from AbstractPool.afterWorkerNodeSetup
- Defined in src/pools/cluster/fixed.ts:97

Defined in src/pools/abstract-pool.ts:1091

`Protected` beforeTaskExecutionHook

beforeTaskExecutionHook(workerNodeKey): void
beforeTaskExecutionHook(workerNodeKey, task): void
Hook executed before the worker task execution. Can be overridden.
@@ -369,83 +413,104 @@ Can be overridden.

workerNodeKey: number

The worker node key.

+
+
task: Task<Data>
+
The task to execute.
+

Returns void

`Protected` chooseWorkerNode

Defined in src/pools/abstract-pool.ts:804

`Protected` checkDynamicPoolSize

checkDynamicPoolSize(min, max): void
+
+
Parameters
+
- +
  min: number
- +
  max: number
+
Returns void
+
Inherited from AbstractPool.checkDynamicPoolSize
+
- Defined in src/pools/abstract-pool.ts:179

`Protected` createAndSetupDynamicWorkerNode

chooseWorkerNode(): number
createAndSetupDynamicWorkerNode(): number
-
Chooses a worker node for the next task.
-
The default worker choice strategy uses a round robin algorithm to distribute the load.
+
Creates a new, completely set up dynamic worker node.

-
Returns number
The worker node key
+
Returns number
New, completely set up dynamic worker node key.
-
Inherited from AbstractPool.chooseWorkerNode
+
Inherited from AbstractPool.createAndSetupDynamicWorkerNode
- Defined in src/pools/abstract-pool.ts:554

`Protected` createAndSetupWorker

Defined in src/pools/abstract-pool.ts:1037

`Protected` createAndSetupWorkerNode

createAndSetupWorker(): Worker
createAndSetupWorkerNode(): number
-
Creates a new worker and sets it up completely in the pool worker nodes.
+
Creates a new, completely set up worker node.

-
Returns Worker
New, completely set up worker.
+
Returns number
New, completely set up worker node key.
-
Inherited from AbstractPool.createAndSetupWorker
+
Inherited from AbstractPool.createAndSetupWorkerNode
- Defined in src/pools/abstract-pool.ts:618

Defined in src/pools/abstract-pool.ts:997

`Protected` createWorker

createWorker(): Worker
-
Returns a newly created worker.
+
Creates a new worker.

-
Returns Worker
+
Returns Worker
Newly created worker.
+
Overrides AbstractPool.createWorker
- Defined in src/pools/cluster/fixed.ts:92

Defined in src/pools/cluster/fixed.ts:105

destroy

destroy(): Promise<void>
-
Shutdowns every current worker in this pool.
+
Terminates all workers in this pool.

Returns Promise<void>
Inherited from AbstractPool.destroy
- Defined in src/pools/abstract-pool.ts:418

`Protected` destroyWorker

Defined in src/pools/abstract-pool.ts:750

`Protected` destroyWorkerNode

destroyWorker(worker): void
destroyWorkerNode(workerNodeKey): Promise<void>
-
Shutdowns the given worker.
+
Terminates the worker node given its worker node key.
Parameters
- -
  worker: Worker
  -
  A worker within workerNodes.
  +
  workerNodeKey: number
  +
  The worker node key.
-
Returns void
+
Returns Promise<void>
-
Overrides AbstractPool.destroyWorker
+
Overrides AbstractPool.destroyWorkerNode
- Defined in src/pools/cluster/fixed.ts:73

Defined in src/pools/cluster/fixed.ts:63

enableTasksQueue

Defined in src/pools/abstract-pool.ts:606

execute

execute(data?, name?): Promise<Response>
execute(data?, name?, transferList?): Promise<Response>
Executes the specified function in the worker constructor with the task data input parameter.

@@ -483,12 +548,17 @@ Can be overridden.
- Optional data: Data
  -
  The task input data for the specified worker function. This can only be serializable data.
  +
  The optional task input data for the specified task function. This can only be structured-cloneable data.
- Optional name: string
  -
  The name of the worker function to execute. If not specified, the default worker function will be executed.
  +
  The optional name of the task function to execute. If not specified, the default task function will be executed.
  +
  +
- +
  Optional transferList: TransferListItem[]
  +
  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.
Returns Promise<Response>
Promise that will be fulfilled when the task is completed.
@@ -496,16 +566,76 @@ Can be overridden.
Inherited from AbstractPool.execute
- Defined in src/pools/abstract-pool.ts:383

Defined in src/pools/abstract-pool.ts:691

`Protected` flushTasksQueue

flushTasksQueue(workerNodeKey): void
+
+
Parameters
+
- +
  workerNodeKey: number
+
Returns void
+
Inherited from AbstractPool.flushTasksQueue
+
- Defined in src/pools/abstract-pool.ts:1345

`Protected` getWorkerInfo

getWorkerInfo(workerNodeKey): WorkerInfo
+
Gets the worker information given its worker node key.
+
+
+
Parameters
+
- +
  workerNodeKey: number
  +
  The worker node key.
  +
  +
+
Returns WorkerInfo
The worker information.
+ +
+
Inherited from AbstractPool.getWorkerInfo
+
- Defined in src/pools/abstract-pool.ts:1260

hasWorkerNodeBackPressure

hasWorkerNodeBackPressure(workerNodeKey): boolean
Internal +
Whether the worker node has back pressure (i.e. its tasks queue is full).
+
+
+
Parameters
+
- +
  workerNodeKey: number
  +
  The worker node key.
  +
  +
+
Returns boolean
true if the worker node has back pressure, false otherwise.
+ +
+
Inherited from AbstractPool.hasWorkerNodeBackPressure
+
- Defined in src/pools/abstract-pool.ts:1303

`Protected` internalBusy

internalBusy(): boolean
-
Returns boolean
+
Whether worker nodes are executing concurrently their tasks quota or not.
+
+
Returns boolean
Worker nodes busyness boolean status.
+ +
Inherited from AbstractPool.internalBusy
- Defined in src/pools/abstract-pool.ts:374

Defined in src/pools/abstract-pool.ts:657

`Protected` isMain

Defined in src/pools/cluster/fixed.ts:58

listTaskFunctions

listTaskFunctions(): string[]
+
Lists the names of task function available in this pool.
+
+
Returns string[]
The names of task function available in this pool.
+ +
+
Inherited from AbstractPool.listTaskFunctions
+
- Defined in src/pools/abstract-pool.ts:678

`Protected` registerWorkerMessageListener

registerWorkerMessageListener<Message>(worker, listener): void
registerWorkerMessageListener<Message>(workerNodeKey, listener): void
-
Registers a listener callback on the given worker.
+
Registers a listener callback on the worker given its worker node key.
Type Parameters
@@ -534,8 +677,8 @@ Can be overridden.

Parameters
- -
  worker: Worker
  -
  The worker which should register a listener.
  +
  workerNodeKey: number
  +
  The worker node key.
- @@ -552,30 +695,66 @@ Can be overridden.
  
  Parameters
  - -
    message: MessageValue<Message, Worker | MessagePort>
+
message: MessageValue<Message, unknown>

Returns void

Defined in src/pools/cluster/fixed.ts:97

`Protected` sendKillMessageToWorker

sendKillMessageToWorker(workerNodeKey, workerId): Promise<void>
+
+
Parameters
+
- +
  workerNodeKey: number
- +
  workerId: number
+
Returns Promise<void>
+
Inherited from AbstractPool.sendKillMessageToWorker
+
- Defined in src/pools/abstract-pool.ts:759

`Protected` sendStartupMessageToWorker

sendStartupMessageToWorker(workerNodeKey): void
+
Sends the startup message to worker given its worker node key.
+
+
+
Parameters
+
- +
  workerNodeKey: number
  +
  The worker node key.
  +
  +
+
Returns void
+
+
Overrides AbstractPool.sendStartupMessageToWorker
+
- Defined in src/pools/cluster/fixed.ts:89

`Protected` sendToWorker

sendToWorker(worker, message): void
sendToWorker(workerNodeKey, message): void
-
Sends a message to the given worker.
+
Sends a message to worker given its worker node key.
Parameters
- -
  worker: Worker
  -
  The worker which should receive the message.
  +
  workerNodeKey: number
  +
  The worker node key.
- -
  message: MessageValue<Data, Worker | MessagePort>
  +
  message: MessageValue<Data, unknown>
  
  The message.
@@ -583,7 +762,7 @@ Can be overridden.
Overrides AbstractPool.sendToWorker
- Defined in src/pools/cluster/fixed.ts:79

Defined in src/pools/cluster/fixed.ts:81

setTasksQueueOptions

Defined in src/pools/abstract-pool.ts:618

setWorkerChoiceStrategy

Parameters

-
workerChoiceStrategy: "ROUND_ROBIN" | "LEAST_USED" | "LEAST_BUSY" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN" | "INTERLEAVED_WEIGHTED_ROUND_ROBIN"
+
workerChoiceStrategy: "ROUND_ROBIN" | "LEAST_USED" | "LEAST_BUSY" | "LEAST_ELU" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN" | "INTERLEAVED_WEIGHTED_ROUND_ROBIN"

The worker choice strategy.

Defined in src/pools/abstract-pool.ts:573

setWorkerChoiceStrategyOptions

Defined in src/pools/abstract-pool.ts:592

`Protected` setupHook

setupHook(): void
-
Setup hook to execute code before worker node are created in the abstract constructor. -Can be overridden
+
Setup hook to execute code before worker nodes are created in the abstract constructor. +Can be overridden.

Returns void
Overrides AbstractPool.setupHook
- Defined in src/pools/cluster/fixed.ts:63

Defined in src/pools/cluster/fixed.ts:53

`Protected` workerListener

workerListener(): ((message) => void)
-
This function is the listener registered for each worker message.
+
This method is the listener registered for each worker message.

Returns ((message) => void)
The listener function to execute when a message is received from a worker.
@@ -676,20 +855,20 @@ Can be overridden
- (message): void
- -
  This function is the listener registered for each worker message.
  +
  This method is the listener registered for each worker message.
  Parameters
  
  -
  message: MessageValue<Response, Worker | MessagePort>
  +
  message: MessageValue<Response, unknown>
Returns void
The listener function to execute when a message is received from a worker.