Class ThreadWorker<Data, Response>

A thread worker used by a poolifier ThreadPool.

+ThreadWorker | poolifier - v4.0.2

Class ThreadWorker<Data, Response>

A thread worker used by a poolifier ThreadPool.

When this worker is inactive for more than the given maxInactiveTime, it will send a termination request to its main thread.

If you use a DynamicThreadPool the extra workers that were created will be terminated, @@ -7,7 +7,7 @@ but the minimum number of workers will be guaranteed.

Since

0.0.1

Type Parameters

Data = unknown
Type of data this worker receives from pool's execution. This can only be structured-cloneable data.
Response = unknown
Type of response the worker sends back to the main thread. This can only be structured-cloneable data.
-

Hierarchy (view full)

AbstractWorker<MessagePort, Data, Response>
- ThreadWorker

Index

Constructors

constructor +

Hierarchy (view full)

AbstractWorker<MessagePort, Data, Response>
- ThreadWorker

Index

Constructors

constructor

Properties

activeInterval? isMain lastTaskTimestamp @@ -23,62 +23,62 @@ but the minimum number of workers will be guaranteed.

handleReadyMessage handleTaskFunctionOperationMessage hasTaskFunction -listTaskFunctionNames +listTaskFunctionsProperties messageListener removeTaskFunction run runAsync runSync -sendTaskFunctionNamesToMainWorker +sendTaskFunctionsPropertiesToMainWorker sendToMainWorker setDefaultTaskFunction

Constructors

constructor

new ThreadWorker<Data, Response>(taskFunctions, opts?): ThreadWorker<Data, Response>
Constructs a new poolifier thread worker.
Type Parameters
- Data = unknown
- Response = unknown
Parameters
- taskFunctions: TaskFunction<Data, Response> | TaskFunctions<Data, Response>
  Task function(s) processed by the worker when the pool's execution function is invoked.
- opts: WorkerOptions = {}
  Options for the worker.
  -
Returns ThreadWorker<Data, Response>
Overrides AbstractWorker.constructor
- Defined in src/worker/thread-worker.ts:41

Properties

`Protected` `Optional` activeInterval

activeInterval?: Timeout

Handler id of the activeInterval worker activity check.

`Protected` `Readonly` isMain

isMain: undefined | boolean

Whether this is the main worker or not.

`Protected` lastTaskTimestamp

lastTaskTimestamp: number

Timestamp of the last task processed by this worker.

`Protected` opts

opts: WorkerOptions = DEFAULT_WORKER_OPTIONS

Options for the worker.

`Private` `Optional` port

port?: MessagePort

Message port used to communicate with the main worker.

`Protected` `Optional` statistics

statistics?: WorkerStatistics

Performance statistics computation requirements.

`Protected` taskFunctions

taskFunctions: Map<string, TaskFunction<Data, Response>>

Task function(s) processed by the worker when the pool's execution function is invoked.

Accessors

`Protected` id

get id(): number
Worker id.
-
Returns number
Overrides AbstractWorker.id
- Defined in src/worker/thread-worker.ts:79

Methods

addTaskFunction

addTaskFunction(name, fn): TaskFunctionOperationResult
Adds a task function to the worker. +

Returns ThreadWorker<Data, Response>

Properties

`Protected` `Optional` activeInterval

activeInterval?: Timeout

Handler id of the activeInterval worker activity check.

`Protected` `Readonly` isMain

isMain: undefined | boolean

Whether this is the main worker or not.

`Protected` lastTaskTimestamp

lastTaskTimestamp: number

Timestamp of the last task processed by this worker.

`Protected` opts

opts: WorkerOptions = DEFAULT_WORKER_OPTIONS

Options for the worker.

`Private` `Optional` port

port?: MessagePort

Message port used to communicate with the main worker.

`Protected` `Optional` statistics

statistics?: WorkerStatistics

Performance statistics computation requirements.

`Protected` taskFunctions

taskFunctions: Map<string, TaskFunctionObject<Data, Response>>

Task function object(s) processed by the worker when the pool's execution function is invoked.

Accessors

`Protected` id

get id(): number
Worker id.
+
Returns number
Overrides AbstractWorker.id
- Defined in src/worker/thread-worker.ts:80

Methods

addTaskFunction

addTaskFunction(name, fn): TaskFunctionOperationResult
Adds a task function to the worker. If a task function with the same name already exists, it is replaced.
Parameters
- name: string
  The name of the task function to add.
  -
- fn: TaskFunction<Data, Response>
  The task function to add.
  +
- fn: TaskFunction<Data, Response> | TaskFunctionObject<Data, Response>
  The task function to add.
Returns TaskFunctionOperationResult
Whether the task function was added or not.
-
Inherited from AbstractWorker.addTaskFunction
- Defined in src/worker/abstract-worker.ts:179

`Protected` getMainWorker

getMainWorker(): MessagePort
Returns the main worker.
+
Inherited from AbstractWorker.addTaskFunction
- Defined in src/worker/abstract-worker.ts:189

`Protected` getMainWorker

getMainWorker(): MessagePort
Returns the main worker.

Returns MessagePort
Reference to the main worker.

Throws
https://nodejs.org/api/errors.html#class-error If the main worker is not set.
-
Inherited from AbstractWorker.getMainWorker
- Defined in src/worker/abstract-worker.ts:451

`Protected` handleError

handleError(error): string
Handles an error and convert it to a string so it can be sent back to the main worker.
+
Inherited from AbstractWorker.getMainWorker
- Defined in src/worker/abstract-worker.ts:477

`Protected` handleError

handleError(error): string
Handles an error and convert it to a string so it can be sent back to the main worker.
Parameters
- error: string | Error
  The error raised by the worker.
Returns string
The error message.
-
Overrides AbstractWorker.handleError
- Defined in src/worker/thread-worker.ts:97

`Protected` handleKillMessage

handleKillMessage(message): void
Handles a kill message sent by the main worker.
-
Parameters
- message: MessageValue<Data, unknown>
Returns void
Overrides AbstractWorker.handleKillMessage
- Defined in src/worker/thread-worker.ts:72

`Protected` handleReadyMessage

handleReadyMessage(message): void
Handles the ready message sent by the main worker.
+
Overrides AbstractWorker.handleError
- Defined in src/worker/thread-worker.ts:98

`Protected` handleKillMessage

handleKillMessage(message): void
Handles a kill message sent by the main worker.
+
Parameters
- message: MessageValue<Data, unknown>
Returns void
Overrides AbstractWorker.handleKillMessage
- Defined in src/worker/thread-worker.ts:73

`Protected` handleReadyMessage

handleReadyMessage(message): void
Handles the ready message sent by the main worker.
Parameters
- message: MessageValue<Data, unknown>
  The ready message.
  -
Returns void
Overrides AbstractWorker.handleReadyMessage
- Defined in src/worker/thread-worker.ts:49

`Protected` handleTaskFunctionOperationMessage

handleTaskFunctionOperationMessage(message): void
Parameters
- message: MessageValue<Data, unknown>
Returns void
Inherited from AbstractWorker.handleTaskFunctionOperationMessage
- Defined in src/worker/abstract-worker.ts:324

hasTaskFunction

hasTaskFunction(name): TaskFunctionOperationResult
Checks if the worker has a task function with the given name.
+

Returns void

`Protected` handleTaskFunctionOperationMessage

handleTaskFunctionOperationMessage(message): void
Parameters
- message: MessageValue<Data, unknown>
Returns void
Inherited from AbstractWorker.handleTaskFunctionOperationMessage
- Defined in src/worker/abstract-worker.ts:345

hasTaskFunction

hasTaskFunction(name): TaskFunctionOperationResult
Checks if the worker has a task function with the given name.
Parameters
- name: string
  The name of the task function to check.
Returns TaskFunctionOperationResult
Whether the worker has a task function with the given name or not.
-
Inherited from AbstractWorker.hasTaskFunction
- Defined in src/worker/abstract-worker.ts:162

listTaskFunctionNames

listTaskFunctionNames(): string[]
Lists the names of the worker's task functions.
-
Returns string[]
The names of the worker's task functions.
-
Inherited from AbstractWorker.listTaskFunctionNames
- Defined in src/worker/abstract-worker.ts:243

`Protected` messageListener

messageListener(message): void
Worker message listener.
+
Inherited from AbstractWorker.hasTaskFunction
- Defined in src/worker/abstract-worker.ts:172

listTaskFunctionsProperties

listTaskFunctionsProperties(): TaskFunctionProperties[]
Lists the properties of the worker's task functions.
+
Returns TaskFunctionProperties[]
The properties of the worker's task functions.
+
Inherited from AbstractWorker.listTaskFunctionsProperties
- Defined in src/worker/abstract-worker.ts:254

`Protected` messageListener

messageListener(message): void
Worker message listener.
Parameters
- message: MessageValue<Data, unknown>
  The received message.
  -
Returns void
Inherited from AbstractWorker.messageListener
- Defined in src/worker/abstract-worker.ts:304

removeTaskFunction

removeTaskFunction(name): TaskFunctionOperationResult
Removes a task function from the worker.
+

Class ThreadWorker<Data, Response>

Class ThreadWorker<Data, Response>

Since

Type Parameters

Hierarchy (view full)

Index

Constructors

Hierarchy (view full)

Index

Constructors

Properties

Constructors

constructor

Type Parameters

Parameters

Returns ThreadWorker<Data, Response>

Properties

Protected Optional activeInterval

Protected Readonly isMain

Protected lastTaskTimestamp

Protected opts

Private Optional port

Protected Optional statistics

Protected taskFunctions

Accessors

Protected id

Returns number

Methods

addTaskFunction

Returns ThreadWorker<Data, Response>

Properties

Protected Optional activeInterval

Protected Readonly isMain

Protected lastTaskTimestamp

Protected opts

Private Optional port

Protected Optional statistics

Protected taskFunctions

Accessors

Protected id

Returns number

Methods

addTaskFunction

Parameters

Returns TaskFunctionOperationResult

Protected getMainWorker

Protected getMainWorker

Returns MessagePort

Throws

Protected handleError

Protected handleError

Parameters

Returns string

Protected handleKillMessage

Parameters

Returns void

Protected handleReadyMessage

Protected handleKillMessage

Parameters

Returns void

Protected handleReadyMessage

Parameters

Returns void

Protected handleTaskFunctionOperationMessage

Parameters

Returns void

hasTaskFunction

Returns void

Protected handleTaskFunctionOperationMessage

Parameters

Returns void

hasTaskFunction

Parameters

Returns TaskFunctionOperationResult

listTaskFunctionNames

Returns string[]

Protected messageListener

listTaskFunctionsProperties

Returns TaskFunctionProperties[]

Protected messageListener

`Protected` `Optional` activeInterval

`Protected` `Readonly` isMain

`Protected` lastTaskTimestamp

`Protected` opts

`Private` `Optional` port

`Protected` `Optional` statistics

`Protected` taskFunctions

`Protected` id

`Protected` `Optional` activeInterval

`Protected` `Readonly` isMain

`Protected` lastTaskTimestamp

`Protected` opts

`Private` `Optional` port

`Protected` `Optional` statistics

`Protected` taskFunctions

`Protected` id

`Protected` getMainWorker

`Protected` getMainWorker

`Protected` handleError

`Protected` handleError

`Protected` handleKillMessage

`Protected` handleReadyMessage

`Protected` handleKillMessage

`Protected` handleReadyMessage

`Protected` handleTaskFunctionOperationMessage

`Protected` handleTaskFunctionOperationMessage

`Protected` messageListener

`Protected` messageListener

`Protected` `Readonly` run

`Protected` `Readonly` run

`Protected` `Readonly` runAsync

`Protected` `Readonly` runAsync

`Protected` `Readonly` runSync

`Protected` `Readonly` runSync

`Protected` sendTaskFunctionNamesToMainWorker

`Protected` `Readonly` sendToMainWorker

`Protected` sendTaskFunctionsPropertiesToMainWorker

`Protected` `Readonly` sendToMainWorker