X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=docs%2Fclasses%2FDynamicThreadPool.html;h=e38da9b543d9b879698ef2695cf8b26a8543f440;hb=33d02686234434468961547c907593eb19f2f526;hp=521c972adf7c7152540abdcdd598c1c23513e2c9;hpb=5decbf239157d04bdf38a642fe2757f565a8d466;p=poolifier.git diff --git a/docs/classes/DynamicThreadPool.html b/docs/classes/DynamicThreadPool.html index 521c972a..e38da9b5 100644 --- a/docs/classes/DynamicThreadPool.html +++ b/docs/classes/DynamicThreadPool.html @@ -1,13 +1,13 @@ -
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.
+Type of execution response. This can only be serializable data.
-Type of execution response. This can only be structured-cloneable data.
+Constructs a new poolifier dynamic thread pool.
Minimum number of threads which are always active.
-Maximum number of threads that can be created by this pool.
-Path to an implementation of a ThreadWorker
file, which can be relative or absolute.
Options for this dynamic thread pool.
-Optional
Readonly
emitterEmitter on which events can be listened to.
+Optional
emitterEvent emitter integrated with async resource on which events can be listened to.
+The async tracking tooling identifier is poolifier:<PoolType>-<WorkerType>-pool
.
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 concurrently their tasks quota.'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 >= maximum queue size).Protected
Readonly
fileProtected
Readonly
filePath to the worker file.
-Protected
Readonly
maxProtected
Readonly
maxMaximum number of threads that can be created by this pool.
-Protected
Readonly
numberProtected
Readonly
numberNumber of workers that this pool should manage.
-Inherited from FixedThreadPool.numberOfWorkers
Protected
Readonly
optsOptions for the pool.
-Protected
Readonly
optsOptions for this fixed thread pool.
+Inherited from FixedThreadPool.opts
Protected
promiseThe execution response promise map.
+Protected
promiseThe 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.
-Inherited from FixedThreadPool.promiseResponseMap
Protected
workerProtected
workerWorker choice strategy context referencing a worker choice algorithm implementation.
-Default to a round robin algorithm.
-Inherited from FixedThreadPool.workerChoiceStrategyContext
Readonly
workerReadonly
Internal
workerPool worker nodes.
-Inherited from FixedThreadPool.workerNodes
Protected
busyProtected
busyWhether the pool is busy or not.
The pool busyness boolean status.
Overrides FixedThreadPool.busy
Protected
fullProtected
fullWhether the pool is full or not.
The pool filling boolean status.
Inherited from FixedThreadPool.full
Pool information.
Inherited from FixedThreadPool.info
Protected
maxProtected
maxPool maximum size.
+The pool maximum size.
Overrides FixedThreadPool.maxSize
+Inherited from FixedThreadPool.maxSize
Protected
minProtected
minPool minimum size.
+The pool minimum size.
Inherited from FixedThreadPool.minSize
Private
readyThe pool readiness boolean status.
+Inherited from FixedThreadPool.ready
+Protected
typeProtected
typePool type.
+The pool type.
If it is 'dynamic'
, it provides the max
property.
Overrides FixedThreadPool.type
Private
utilizationThe approximate pool utilization.
+The pool utilization.
+ +Inherited from FixedThreadPool.utilization
+Protected
workerProtected
workerGets the worker type.
+The worker type.
Inherited from FixedThreadPool.worker
Adds a task function to this pool. +If a task function with the same name already exists, it will be overwritten.
+The name of the task function.
+The task function.
+true
if the task function was added, false
otherwise.
https://nodejs.org/api/errors.html#class-typeerror If the name
parameter is not a string or an empty string.
https://nodejs.org/api/errors.html#class-typeerror If the fn
parameter is not a function.
Inherited from FixedThreadPool.addTaskFunction
+Protected
afterProtected
afterHook executed after the worker task execution. Can be overridden.
@@ -308,40 +406,45 @@ Can be overridden.The worker.
-The worker node key.
+The received message.
-Inherited from FixedThreadPool.afterTaskExecutionHook
Protected
afterProtected
afterFunction 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.
The newly created worker.
-Inherited from FixedThreadPool.afterWorkerSetup
+The newly created worker node key.
+Inherited from FixedThreadPool.afterWorkerNodeSetup
Protected
beforeProtected
beforeThe task to execute.
+Inherited from FixedThreadPool.beforeTaskExecutionHook
Protected
chooseProtected
createChooses 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.
The worker node key
-Inherited from FixedThreadPool.chooseWorkerNode
+New, completely set up dynamic worker node key.
+ +Inherited from FixedThreadPool.createAndSetupDynamicWorkerNode
Protected
createProtected
createCreates a new worker and sets it up completely in the pool worker nodes.
+Creates a new, completely set up worker node.
New, completely set up worker.
-Inherited from FixedThreadPool.createAndSetupWorker
+New, completely set up worker node key.
+ +Inherited from FixedThreadPool.createAndSetupWorkerNode
Protected
createProtected
createReturns a newly created worker.
+Creates a new worker.
Newly created worker.
+ +Inherited from FixedThreadPool.createWorker
Protected
deregisterDeregisters a listener callback on the worker given its worker node key.
+The worker node key.
+The message listener callback.
+Inherited from FixedThreadPool.deregisterWorkerMessageListener
+Shutdowns every current worker in this pool.
+Terminates all workers in this pool.
Inherited from FixedThreadPool.destroy
Protected
destroyProtected
destroyShutdowns the given worker.
+Terminates the worker node given its worker node key.
A worker within workerNodes
.
Inherited from FixedThreadPool.destroyWorker
+The worker node key.
+Inherited from FixedThreadPool.destroyWorkerNode
Enables/disables the worker tasks queue in this pool.
+Enables/disables the worker node tasks queue in this pool.
Whether to enable or disable the worker tasks queue.
-Whether to enable or disable the worker node tasks queue.
+Optional
tasksQueueOptions: TasksQueueOptionsThe worker tasks queue options.
-The worker node tasks queue options.
+Inherited from FixedThreadPool.enableTasksQueue
Executes the specified function in the worker constructor with the task data input parameter.
Optional
data: DataThe 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: stringThe 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.
+Promise that will be fulfilled when the task is completed.
-Inherited from FixedThreadPool.execute
Protected
flushInherited from FixedThreadPool.flushTasksQueue
+Protected
getGets the worker information given its worker node key.
+The worker node key.
+The worker information.
+ +Inherited from FixedThreadPool.getWorkerInfo
+Whether the specified task function exists in this pool.
+The name of the task function.
+true
if the task function exists, false
otherwise.
Inherited from FixedThreadPool.hasTaskFunction
+Internal
+Whether the worker node has back pressure (i.e. its tasks queue is full).
+The worker node key.
+true
if the worker node has back pressure, false
otherwise.
Inherited from FixedThreadPool.hasWorkerNodeBackPressure
+Protected
internalProtected
internalWhether worker nodes are executing concurrently their tasks quota or not.
+Worker nodes busyness boolean status.
+ +Inherited from FixedThreadPool.internalBusy
Protected
isProtected
isShould return whether the worker is the main worker or not.
Inherited from FixedThreadPool.isMain
Lists the names of task function available in this pool.
+The names of task function available in this pool.
+ +Inherited from FixedThreadPool.listTaskFunctionNames
+Protected
registerRegisters once a listener callback on the worker given its worker node key.
+The worker node key.
+The message listener callback.
+Inherited from FixedThreadPool.registerOnceWorkerMessageListener
+Protected
registerProtected
registerRegisters a listener callback on the given worker.
+Registers a listener callback on the worker given its worker node key.
The worker which should register a listener.
-The worker node key.
+The message listener callback.
Inherited from FixedThreadPool.registerWorkerMessageListener
Removes a task function from this pool.
+The name of the task function.
+true
if the task function was removed, false
otherwise.
Inherited from FixedThreadPool.removeTaskFunction
+Protected
sendInherited from FixedThreadPool.sendKillMessageToWorker
+Protected
sendSends the startup message to worker given its worker node key.
+The worker node key.
+Inherited from FixedThreadPool.sendStartupMessageToWorker
+Protected
sendProtected
sendSends a message to the given worker.
+Sends a message to worker given its worker node key.
The worker which should receive the message.
-The worker node key.
+The message.
-Optional
transferList: TransferListItem[]The optional array of transferable objects.
+Inherited from FixedThreadPool.sendToWorker
Sets the default task function in this pool.
+The name of the task function.
+true
if the default task function was set, false
otherwise.
Inherited from FixedThreadPool.setDefaultTaskFunction
+Sets the worker tasks queue options in this pool.
+Sets the worker node tasks queue options in this pool.
The worker tasks queue options.
-The worker node tasks queue options.
+Inherited from FixedThreadPool.setTasksQueueOptions
Sets the worker choice strategy in this pool.
The worker choice strategy.
-Optional
workerChoiceStrategyOptions: WorkerChoiceStrategyOptionsThe worker choice strategy options.
-Inherited from FixedThreadPool.setWorkerChoiceStrategy
Sets the worker choice strategy options in this pool.
The worker choice strategy options.
-Inherited from FixedThreadPool.setWorkerChoiceStrategyOptions
Protected
setupProtected
setupSetup 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.
Inherited from FixedThreadPool.setupHook
Protected
workerThis function is the listener registered for each worker message.
+Starts the minimum number of workers in this pool.
The listener function to execute when a message is received from a worker.
- -Inherited from FixedThreadPool.start
+Protected
workerThis function is the listener registered for each worker message.
+This method is the message listener registered on each worker.
The listener function to execute when a message is received from a worker.
-Inherited from FixedThreadPool.workerListener
+Inherited from FixedThreadPool.workerMessageListener
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+ \ No newline at end of file
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
.