X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;ds=sidebyside;f=docs%2Fclasses%2FDynamicThreadPool.html;h=af5ecbce6469b1600298b58e061f53ddc575d1c7;hb=14a2e530e555fa52f98454e182d0094e0ff5d86f;hp=23dc786f0a91b757a8400587aa0637f23f5e1c4d;hpb=8662ea71e523af81c1138618f0e12b89df35ce8a;p=poolifier.git diff --git a/docs/classes/DynamicThreadPool.html b/docs/classes/DynamicThreadPool.html index 23dc786f..af5ecbce 100644 --- a/docs/classes/DynamicThreadPool.html +++ b/docs/classes/DynamicThreadPool.html @@ -1,13 +1,15 @@ -
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, an event is emitted. If you want to listen to this event, use the pool's
- -emitter
.Template
of data sent to the worker. This can only be serializable data.
- -Template
of response of execution. This can only be serializable data.
+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'semitter
.Author
Alessandro Pio Ardizio
@@ -30,17 +28,21 @@ When the maximum number of threads is reached, an event is emitted. If you wantType Parameters
Data = unknown
Data = unknown
+Type of data sent to the worker. This can only be serializable data.
+Response = unknown
Response = unknown
+Type of response of execution. This can only be serializable data.
+Hierarchy
-- FixedThreadPool<Data, Response>
+
- FixedThreadPool<Data, Response>
- DynamicThreadPool
@@ -54,42 +56,36 @@ When the maximum number of threads is reached, an event is emitted. If you wantemitter?
file Path
-max
-next Message Id
+max
number Of Workers
opts
-promise Map
+promise Response Map
worker Choice Strategy Context
-workers
-workers Tasks Usage
+worker Nodes
Properties
Accessors
Methods
-constructor
-- new
Dynamic Thread Pool<Data, Response>(min: number, max: number, filePath: string, opts?: PoolOptions<ThreadWorkerWithMessageChannel>): DynamicThreadPool<Data, Response>
+- new
Dynamic Thread Pool<Data, Response>(min: number, max: number, filePath: string, opts?: PoolOptions<ThreadWorkerWithMessageChannel>): DynamicThreadPool<Data, Response>
-
@@ -130,92 +126,86 @@ When the maximum number of threads is reached, an event is emitted. If you want
Constructs a new poolifier dynamic thread pool.
opts: PoolOptions<ThreadWorkerWithMessageChannel> = {}
Options for this dynamic thread pool.
Returns DynamicThreadPool<Data, Response>
Properties
-Optional
Readonly
emitterInherit Doc
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.Inherited from FixedThreadPool.emitter
-- Defined in src/pools/abstract-pool.ts:42
Path
-Readonly
filePath to the worker-file.
+Inherited from FixedThreadPool.filePath
-- Defined in src/pools/abstract-pool.ts:85
Readonly
maxInherit Doc
Inherited from FixedThreadPool.max
--- Defined in src/pools/thread/dynamic.ts:31
Message Id
-Protected
nextId of the next message.
+Maximum number of threads that can be created by this pool.
Inherited from FixedThreadPool.nextMessageId
-- Defined in src/pools/abstract-pool.ts:63
Of Workers
-Readonly
numberNumber of workers that this pool should manage.
+Inherited from FixedThreadPool.numberOfWorkers
-- Defined in src/pools/abstract-pool.ts:84
-Readonly
optsOptions for the pool.
+Inherited from FixedThreadPool.opts
-- Defined in src/pools/abstract-pool.ts:86
Map
-Protected
promiseThe promise map.
+ Response Map
+Protected
promiseThe execution response promise map.
-
-
+
+
-key
: This is the message Id of each submitted task.value
: An object that contains the worker, the resolve function and the reject function.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 and resolve/reject the promise based on the message.
+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.promiseMap
+Inherited from FixedThreadPool.promiseResponseMap
-- Defined in src/pools/abstract-pool.ts:55
Choice Strategy Context
-Protected
workerWorker choice strategy instance implementing the worker choice algorithm.
-Default to a strategy implementing a round robin algorithm.
+Worker choice strategy context referencing a worker choice algorithm implementation.
+Default to a round robin algorithm.
Inherited from FixedThreadPool.workerChoiceStrategyContext
-- Defined in src/pools/abstract-pool.ts:70
-Readonly
workersInherit Doc
Inherited from FixedThreadPool.workers
--- Defined in src/pools/abstract-pool.ts:33
Tasks Usage
-Readonly
workersInherit Doc
Inherited from FixedThreadPool.workersTasksUsage
--- Defined in src/pools/abstract-pool.ts:36
Nodes
+Readonly
workerPool worker nodes.
+Inherited from FixedThreadPool.workerNodes
++- Defined in src/pools/abstract-pool.ts:38
Accessors
Inherit Doc
Whether the pool is busy or not.
+The pool busyness boolean status.
+Returns boolean
Overrides FixedThreadPool.busy
-- Defined in src/pools/thread/dynamic.ts:44
number Of Running Tasks
-+- Defined in src/pools/thread/dynamic.ts:49
full
++- get full(): boolean
+-
+
+
+
Whether the pool is full or not.
+The pool filling boolean status.
+Returns boolean
Overrides FixedThreadPool.full
++- Defined in src/pools/thread/dynamic.ts:44
Of Queued Tasks
+Private
number+- get numberOfQueuedTasks(): number
+-
+
+
+
Number of tasks queued in the pool.
+Returns number
Inherited from FixedThreadPool.numberOfQueuedTasks
++- Defined in src/pools/abstract-pool.ts:186
Of Running Tasks
+Private
numberInherit Doc
Number of tasks running in the pool.
+Returns number
Inherited from FixedThreadPool.numberOfRunningTasks
-- Defined in src/pools/abstract-pool.ts:156
type
-- get type(): PoolType
+- get type(): PoolType
-
-
-
-
+
+
Inherit Doc
Returns PoolType
Pool type.
+If it is
+'dynamic'
, it provides themax
property.Returns PoolType
Overrides FixedThreadPool.type
-- Defined in src/pools/thread/dynamic.ts:39
Methods
- Promise Worker Response Hook
+Protected
afterProtected
after-- after
Promise Worker Response Hook(message: MessageValue<Response, unknown>, promise: PromiseWorkerResponseWrapper<ThreadWorkerWithMessageChannel, Response>): void
+- after
Task Execution Hook(worker: ThreadWorkerWithMessageChannel, message: MessageValue<Response, unknown>): void
-
-
-
-
-
-
-
+- Defined in src/pools/abstract-pool.ts:327
Worker Setup
- after
Worker Setup(worker: ThreadWorkerWithMessageChannel): void
-
-
-
+
-
-
+
-
-- Defined in src/pools/thread/fixed.ts:85
+
+ Task Execution Hook
+- Defined in src/pools/thread/fixed.ts:62
+- Defined in src/pools/abstract-pool.ts:209
Hook
- setup
Hook(): void
-
-
+- Defined in src/pools/abstract-pool.ts:301
Listener
-
+- Defined in src/pools/abstract-pool.ts:445
+
+
-
-
-
+- constructor
+- emitter
+- file
Path
+- max
+- number
Of Workers
+- opts
+- promise
Response Map
+- worker
Choice Strategy Context
+- worker
Nodes
+- busy
+- full
+- number
Of Queued Tasks
+- number
Of Running Tasks
+- type
+- after
Task Execution Hook
+- after
Worker Setup
+- before
Task Execution Hook
+- choose
Worker Node
+- create
And Setup Worker
+- create
Worker
+- destroy
+- destroy
Worker
+- execute
+- find
Free Worker Node Key
+- internal
Busy
+- is
Main
+- register
Worker Message Listener
+- send
To Worker
+- set
Worker Choice Strategy
+- setup
Hook
+- worker
Listener
+
+
Hook executed after the worker task promise resolution. +
Hook executed after the worker task execution. Can be overridden.
Parameters
message: MessageValue<Response, unknown>
-The received message.
+worker: ThreadWorkerWithMessageChannel
+The worker.
promise: PromiseWorkerResponseWrapper<ThreadWorkerWithMessageChannel, Response>
-The Promise response.
+message: MessageValue<Response, unknown>
+The received message.
Returns void
Inherited from FixedThreadPool.afterPromiseWorkerResponseHook
+Inherited from FixedThreadPool.afterTaskExecutionHook
-- Defined in src/pools/abstract-pool.ts:263
Protected
afterInherit Doc
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 themain-worker
<->worker
connection if not bind by default.Parameters
worker: ThreadWorkerWithMessageChannel
worker: ThreadWorkerWithMessageChannel
+The newly created worker.
+Returns void
Inherited from FixedThreadPool.afterWorkerSetup
-- Defined in src/pools/thread/fixed.ts:80
Promise Worker Response Hook
+Protected
beforeProtected
before-- before
Promise Worker Response Hook(worker: ThreadWorkerWithMessageChannel): void
+- before
Task Execution Hook(workerNodeKey: number): void
-
-
-
-
-
-
-- Defined in src/pools/abstract-pool.ts:316
+
+ Worker Node
-
-
-
-
-
-
-
-
-
-- Defined in src/pools/abstract-pool.ts:248
+
+
-
-
+- Defined in src/pools/thread/fixed.ts:70
To Worker
Hook executed before the worker task promise resolution. +
Hook executed before the worker task execution. Can be overridden.
Parameters
worker: ThreadWorkerWithMessageChannel
-The worker.
+workerNodeKey: number
+The worker node key.
Returns void
Inherited from FixedThreadPool.beforePromiseWorkerResponseHook
+Inherited from FixedThreadPool.beforeTaskExecutionHook
-- Defined in src/pools/abstract-pool.ts:252
Worker
+Protected
chooseProtected
choose-- choose
Worker(): ThreadWorkerWithMessageChannel
+- choose
Worker Node(): [number, WorkerNode<ThreadWorkerWithMessageChannel, Data>]
-
-
-
-
+
+- Defined in src/pools/abstract-pool.ts:360
And Setup Worker
- create
And Setup Worker(): ThreadWorkerWithMessageChannel
-
-
+- Defined in src/pools/abstract-pool.ts:422
Worker
- create
Worker(): ThreadWorkerWithMessageChannel
-
-
-
+
+- Defined in src/pools/thread/fixed.ts:78
- destroy(): Promise<void>
-
-
-
+
+- Defined in src/pools/abstract-pool.ts:279
- destroy
Worker(worker: ThreadWorkerWithMessageChannel): Promise<void>
-
-
-
+
-
-
+
+- Defined in src/pools/thread/fixed.ts:54
+
Chooses a worker for the next task.
-The default implementation uses a round robin algorithm to distribute the load.
+Chooses a worker node for the next task.
+The default uses a round robin algorithm to distribute the load.
-Returns
Worker.
+Returns
[worker node key, worker node].
Returns ThreadWorkerWithMessageChannel
Inherited from FixedThreadPool.chooseWorker
+Returns [number, WorkerNode<ThreadWorkerWithMessageChannel, Data>]
Inherited from FixedThreadPool.chooseWorkerNode
-- Defined in src/pools/abstract-pool.ts:290
Protected
createCreates a new worker for this pool and sets it up completely.
+Creates a new worker and sets it up completely in the pool worker nodes.
Returns
New, completely set up worker.
Returns ThreadWorkerWithMessageChannel
Inherited from FixedThreadPool.createAndSetupWorker
-- Defined in src/pools/abstract-pool.ts:344
Protected
createInherit Doc
Returns a newly created worker.
+Returns ThreadWorkerWithMessageChannel
Inherited from FixedThreadPool.createWorker
-- Defined in src/pools/thread/fixed.ts:73
destroy
Inherit Doc
Shutdowns every current worker in this pool.
+Returns Promise<void>
Inherited from FixedThreadPool.destroy
-- Defined in src/pools/abstract-pool.ts:222
destroy Worker
Inherit Doc
Shutdowns the given worker.
+Parameters
worker: ThreadWorkerWithMessageChannel
worker: ThreadWorkerWithMessageChannel
+A worker within
+workerNodes
.Returns Promise<void>
Inherited from FixedThreadPool.destroyWorker
-- Defined in src/pools/thread/fixed.ts:49
execute
-- execute(data: Data): Promise<Response>
+- execute(data: Data): Promise<Response>
-
-
-
+
-
-
-
+
Inherit Doc
Performs the task specified in the constructor with the data parameter.
+ +Returns
Promise that will be resolved when the task is successfully completed.
+Parameters
data: Data
Returns Promise<Response>
data: Data
+The input for the specified task. This can only be serializable data.
+Returns Promise<Response>
Inherited from FixedThreadPool.execute
-- Defined in src/pools/abstract-pool.ts:210
find Free Worker
--- find
Free Worker(): false | ThreadWorkerWithMessageChannel
--
-
-
-
-
Inherit Doc
Returns false | ThreadWorkerWithMessageChannel
Inherited from FixedThreadPool.findFreeWorker
--- Defined in src/pools/abstract-pool.ts:199
get Worker Average Tasks Run Time
--- get
Worker Average Tasks Run Time(worker: ThreadWorkerWithMessageChannel): undefined | number
--
-
-
-
-
-
-
Inherit Doc
Parameters
---
-
worker: ThreadWorkerWithMessageChannel
Returns undefined | number
Inherited from FixedThreadPool.getWorkerAverageTasksRunTime
--- Defined in src/pools/abstract-pool.ts:171
get Worker Index
--- get
Worker Index(worker: ThreadWorkerWithMessageChannel): number
--
-
-
-
-
-
-
Inherit Doc
Parameters
---
-
worker: ThreadWorkerWithMessageChannel
Returns number
Inherited from FixedThreadPool.getWorkerIndex
--- Defined in src/pools/abstract-pool.ts:161
get Worker Running Tasks
--- get
Worker Running Tasks(worker: ThreadWorkerWithMessageChannel): undefined | number
--
-
-
-
-
-
-
Inherit Doc
Parameters
---
-
worker: ThreadWorkerWithMessageChannel
Returns undefined | number
Inherited from FixedThreadPool.getWorkerRunningTasks
--- Defined in src/pools/abstract-pool.ts:166
init Worker Tasks Usage
+find Free Worker Node Key
-- init
Worker Tasks Usage(worker: ThreadWorkerWithMessageChannel): void
+- find
Free Worker Node Key(): number
-
-
-
-
-
-
-
-
-
-- Defined in src/pools/abstract-pool.ts:241
+
+ Busy
+- Defined in src/pools/abstract-pool.ts:236
Main
- is
Main(): boolean
-
-
-
+
+- Defined in src/pools/thread/fixed.ts:49
Initializes tasks usage statistics.
+Finds a free worker node key based on the number of tasks the worker has applied.
+If a worker is found with
+0
running tasks, it is detected as free and its worker node key is returned.If no free worker is found,
+ +-1
is returned.Returns
A worker node key if there is one,
-1
otherwise.Parameters
---
-
worker: ThreadWorkerWithMessageChannel
-The worker.
-Returns void
Inherited from FixedThreadPool.initWorkerTasksUsage
--- Defined in src/pools/abstract-pool.ts:470
Execute
-Protected
internal-- internal
Execute(worker: ThreadWorkerWithMessageChannel, messageId: number): Promise<Response>
--
-
-
-
-
+
Parameters
---
-
--
-
worker: ThreadWorkerWithMessageChannel
messageId: number
Returns Promise<Response>
Inherited from FixedThreadPool.internalExecute
+Returns number
Inherited from FixedThreadPool.findFreeWorkerNodeKey
-- Defined in src/pools/abstract-pool.ts:315
Get Busy Status
+Protected
internalProtected
internal-- internal
Get Busy Status(): boolean
+- internal
Busy(): boolean
-
-
Returns boolean
Inherited from FixedThreadPool.internalGetBusyStatus
+Inherited from FixedThreadPool.internalBusy
-- Defined in src/pools/abstract-pool.ts:191
Protected
isInherit Doc
Should return whether the worker is the main worker or not.
+Returns boolean
Inherited from FixedThreadPool.isMain
-- Defined in src/pools/thread/fixed.ts:44
register Worker Message Listener
-- register
Worker Message Listener<Message>(messageChannel: ThreadWorkerWithMessageChannel, listener: ((message: MessageValue<Message, unknown>) => void)): void
+- register
Worker Message Listener<Message>(messageChannel: ThreadWorkerWithMessageChannel, listener: ((message: MessageValue<Message, unknown>) => void)): void
-
-
-
+
-
-
-
Inherit Doc
Registers a listener callback on the given worker.
+Type Parameters
@@ -521,104 +467,96 @@ Can be overridden.-
-
+
Parameters
messageChannel: ThreadWorkerWithMessageChannel
messageChannel: ThreadWorkerWithMessageChannel
+The worker which should register a listener.
+listener: ((message: MessageValue<Message, unknown>) => void)
+listener: ((message: MessageValue<Message, unknown>) => void)
+The message listener callback.
+-- (message: MessageValue<Message, unknown>): void
+- (message: MessageValue<Message, unknown>): void
-
-
-
+
Parameters
message: MessageValue<Message, unknown>
message: MessageValue<Message, unknown>
Returns void
Returns void
Inherited from FixedThreadPool.registerWorkerMessageListener
-- Defined in src/pools/thread/fixed.ts:65
Worker
-Protected
remove-- remove
Worker(worker: ThreadWorkerWithMessageChannel): void
--
-
-
-
-
-
Removes the given worker from the pool.
-Parameters
---
-
worker: ThreadWorkerWithMessageChannel
-The worker that will be removed.
-Returns void
Inherited from FixedThreadPool.removeWorker
--- Defined in src/pools/abstract-pool.ts:277
Protected
send-- send
To Worker(worker: ThreadWorkerWithMessageChannel, message: MessageValue<Data, unknown>): void
+- send
To Worker(worker: ThreadWorkerWithMessageChannel, message: MessageValue<Data, unknown>): void
-
-
-
+
-
-
+
-
-
+
Inherit Doc
Sends a message to the given worker.
+Parameters
worker: ThreadWorkerWithMessageChannel
worker: ThreadWorkerWithMessageChannel
+The worker which should receive the message.
+message: MessageValue<Data, unknown>
message: MessageValue<Data, unknown>
+The message.
+Returns void
Inherited from FixedThreadPool.sendToWorker
-- Defined in src/pools/thread/fixed.ts:57
set Worker Choice Strategy
-- set
Worker Choice Strategy(workerChoiceStrategy: "ROUND_ROBIN" | "LESS_RECENTLY_USED" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN"): void
+- set
Worker Choice Strategy(workerChoiceStrategy: "ROUND_ROBIN" | "LESS_USED" | "LESS_BUSY" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN"): void
-
-
-
+
-
-
+
Inherit Doc
Sets the worker choice strategy in this pool.
+Parameters
workerChoiceStrategy: "ROUND_ROBIN" | "LESS_RECENTLY_USED" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN"
workerChoiceStrategy: "ROUND_ROBIN" | "LESS_USED" | "LESS_BUSY" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN"
+The worker choice strategy.
+Returns void
Inherited from FixedThreadPool.setWorkerChoiceStrategy
-- Defined in src/pools/abstract-pool.ts:176
Protected
setupSetup hook that can be overridden by a Poolifier pool implementation -to run code before workers are created in the abstract constructor.
+Setup hook to execute code before worker node are created in the abstract constructor. +Can be overridden
Returns void
Inherited from FixedThreadPool.setupHook
-- Defined in src/pools/abstract-pool.ts:237
Protected
worker-- worker
Listener(): ((message: MessageValue<Response, unknown>) => void)
+- worker
Listener(): ((message: MessageValue<Response, unknown>) => void)
-
-
--
This function is the listener registered for each worker.
+This function is the listener registered for each worker message.
Returns
The listener function to execute when a message is received from a worker.
Returns ((message: MessageValue<Response, unknown>) => void)
+Returns ((message: MessageValue<Response, unknown>) => void)
-- (message: MessageValue<Response, unknown>): void
+- (message: MessageValue<Response, unknown>): void
-
-
@@ -626,15 +564,16 @@ to run code before workers are created in the abstract constructor.
-
-
+
This function is the listener registered for each worker.
+This function is the listener registered for each worker message.
Returns
The listener function to execute when a message is received from a worker.
Parameters
message: MessageValue<Response, unknown>
message: MessageValue<Response, unknown>
Returns void
Inherited from FixedThreadPool.workerListener
-- Defined in src/pools/abstract-pool.ts:368
-
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