* The maximum time to keep this worker active while idle.
* The pool automatically checks and terminates this worker when the time expires.
*/
- maxInactiveTime: DEFAULT_MAX_INACTIVE_TIME
+ maxInactiveTime: DEFAULT_MAX_INACTIVE_TIME,
+ /**
+ * The function to call when the worker is killed.
+ */
+ killHandler: EMPTY_FUNCTION
}
) {
super(type)
this.opts.killBehavior = opts.killBehavior ?? DEFAULT_KILL_BEHAVIOR
this.opts.maxInactiveTime =
opts.maxInactiveTime ?? DEFAULT_MAX_INACTIVE_TIME
+ this.opts.killHandler = opts.killHandler ?? EMPTY_FUNCTION
delete this.opts.async
}
this.taskFunctions.set(DEFAULT_TASK_NAME, boundFn)
this.taskFunctions.set(
typeof taskFunctions.name === 'string' &&
- taskFunctions.name.trim().length > 0
+ taskFunctions.name.trim().length > 0
? taskFunctions.name
: 'fn1',
boundFn
'A taskFunctions parameter object key is not a string'
)
}
+ if (typeof name === 'string' && name.trim().length === 0) {
+ throw new TypeError(
+ 'A taskFunctions parameter object key an empty string'
+ )
+ }
if (typeof fn !== 'function') {
throw new TypeError(
'A taskFunctions parameter object value is not a function'
if (typeof name !== 'string') {
throw new TypeError('name parameter is not a string')
}
+ if (typeof name === 'string' && name.trim().length === 0) {
+ throw new TypeError('name parameter is an empty string')
+ }
return this.taskFunctions.has(name)
}
if (typeof name !== 'string') {
throw new TypeError('name parameter is not a string')
}
+ if (typeof name === 'string' && name.trim().length === 0) {
+ throw new TypeError('name parameter is an empty string')
+ }
if (name === DEFAULT_TASK_NAME) {
throw new Error(
'Cannot add a task function with the default reserved name'
this.taskFunctions.set(DEFAULT_TASK_NAME, boundFn)
}
this.taskFunctions.set(name, boundFn)
+ this.sendTaskFunctionsListToMainWorker()
return true
} catch {
return false
if (typeof name !== 'string') {
throw new TypeError('name parameter is not a string')
}
+ if (typeof name === 'string' && name.trim().length === 0) {
+ throw new TypeError('name parameter is an empty string')
+ }
if (name === DEFAULT_TASK_NAME) {
throw new Error(
'Cannot remove the task function with the default reserved name'
'Cannot remove the task function used as the default task function'
)
}
- return this.taskFunctions.delete(name)
+ const deleteStatus = this.taskFunctions.delete(name)
+ this.sendTaskFunctionsListToMainWorker()
+ return deleteStatus
}
/**
if (typeof name !== 'string') {
throw new TypeError('name parameter is not a string')
}
+ if (typeof name === 'string' && name.trim().length === 0) {
+ throw new TypeError('name parameter is an empty string')
+ }
if (name === DEFAULT_TASK_NAME) {
throw new Error(
'Cannot set the default task function reserved name as the default task function'
* @param message - The received message.
*/
protected messageListener (message: MessageValue<Data>): void {
- if (message.workerId != null && message.workerId !== this.id) {
- throw new Error('Message worker id does not match worker id')
+ if (this.isMain) {
+ throw new Error('Cannot handle message to worker in main worker')
+ } else if (message.workerId != null && message.workerId !== this.id) {
+ throw new Error(
+ `Message worker id ${message.workerId} does not match the worker id ${this.id}`
+ )
} else if (message.workerId === this.id) {
if (message.statistics != null) {
// Statistics message received
this.statistics = message.statistics
} else if (message.checkActive != null) {
// Check active message received
- !this.isMain && message.checkActive
- ? this.startCheckActive()
- : this.stopCheckActive()
+ message.checkActive ? this.startCheckActive() : this.stopCheckActive()
} else if (message.taskId != null && message.data != null) {
// Task message received
this.run(message)
* @param message - The kill message.
*/
protected handleKillMessage (message: MessageValue<Data>): void {
- !this.isMain && this.stopCheckActive()
- this.emitDestroy()
+ this.stopCheckActive()
+ if (isAsyncFunction(this.opts.killHandler)) {
+ (this.opts.killHandler?.() as Promise<void>)
+ .then(() => {
+ this.sendToMainWorker({ kill: 'success', workerId: this.id })
+ return null
+ })
+ .catch(() => {
+ this.sendToMainWorker({ kill: 'failure', workerId: this.id })
+ })
+ .finally(() => {
+ this.emitDestroy()
+ })
+ .catch(EMPTY_FUNCTION)
+ } else {
+ try {
+ // eslint-disable-next-line @typescript-eslint/no-invalid-void-type
+ this.opts.killHandler?.() as void
+ this.sendToMainWorker({ kill: 'success', workerId: this.id })
+ } catch {
+ this.sendToMainWorker({ kill: 'failure', workerId: this.id })
+ } finally {
+ this.emitDestroy()
+ }
+ }
}
/**
message: MessageValue<Response, Data>
): void
+ /**
+ * Sends the list of task function names to the main worker.
+ */
+ protected sendTaskFunctionsListToMainWorker (): void {
+ this.sendToMainWorker({
+ taskFunctions: this.listTaskFunctions(),
+ workerId: this.id
+ })
+ }
+
/**
* Handles an error and convert it to a string so it can be sent back to the main worker.
*
* @throws {@link https://nodejs.org/api/errors.html#class-error} If the task function is not found.
*/
protected run (task: Task<Data>): void {
- if (this.isMain) {
- throw new Error('Cannot run a task in the main worker')
- }
const fn = this.getTaskFunction(task.name)
if (isAsyncFunction(fn)) {
this.runInAsyncScope(this.runAsync.bind(this), this, fn, task)
): void {
let taskPerformance = this.beginTaskPerformance(task.name)
fn(task.data)
- .then(res => {
+ .then((res) => {
taskPerformance = this.endTaskPerformance(taskPerformance)
this.sendToMainWorker({
data: res,
})
return null
})
- .catch(e => {
+ .catch((e) => {
const errorMessage = this.handleError(e as Error | string)
this.sendToMainWorker({
taskError: {
}
private updateLastTaskTimestamp (): void {
- if (!this.isMain && this.activeInterval != null) {
+ if (this.activeInterval != null) {
this.lastTaskTimestamp = performance.now()
}
}
repositories / poolifier.git / blobdiff