import type {
TaskAsyncFunction,
TaskFunction,
+ TaskFunctionOperationReturnType,
TaskFunctions,
TaskSyncFunction
} from './task-functions'
this.opts = { ...DEFAULT_WORKER_OPTIONS, ...opts }
}
- private checkValidTaskFunction (
+ private checkValidTaskFunctionEntry (
name: string,
fn: TaskFunction<Data, Response>
): void {
} else if (isPlainObject(taskFunctions)) {
let firstEntry = true
for (const [name, fn] of Object.entries(taskFunctions)) {
- this.checkValidTaskFunction(name, fn)
+ this.checkValidTaskFunctionEntry(name, fn)
const boundFn = fn.bind(this)
if (firstEntry) {
this.taskFunctions.set(DEFAULT_TASK_NAME, boundFn)
*
* @param name - The name of the task function to check.
* @returns Whether the worker has a task function with the given name or not.
- * @throws {@link https://nodejs.org/api/errors.html#class-typeerror} If the `name` parameter is not a string or an empty string.
*/
- public hasTaskFunction (name: string): boolean {
- this.checkTaskFunctionName(name)
- return this.taskFunctions.has(name)
+ public hasTaskFunction (name: string): TaskFunctionOperationReturnType {
+ try {
+ this.checkTaskFunctionName(name)
+ } catch (error) {
+ return { status: false, error: error as Error }
+ }
+ return { status: this.taskFunctions.has(name) }
}
/**
* @param name - The name of the task function to add.
* @param fn - The task function to add.
* @returns Whether the task function was added or not.
- * @throws {@link https://nodejs.org/api/errors.html#class-typeerror} If the `name` parameter is not a string or an empty string.
- * @throws {@link https://nodejs.org/api/errors.html#class-error} If the `name` parameter is the default task function reserved name.
- * @throws {@link https://nodejs.org/api/errors.html#class-typeerror} If the `fn` parameter is not a function.
*/
public addTaskFunction (
name: string,
fn: TaskFunction<Data, Response>
- ): boolean {
- this.checkTaskFunctionName(name)
- if (name === DEFAULT_TASK_NAME) {
- throw new Error(
- 'Cannot add a task function with the default reserved name'
- )
- }
- if (typeof fn !== 'function') {
- throw new TypeError('fn parameter is not a function')
- }
+ ): TaskFunctionOperationReturnType {
try {
+ this.checkTaskFunctionName(name)
+ if (name === DEFAULT_TASK_NAME) {
+ throw new Error(
+ 'Cannot add a task function with the default reserved name'
+ )
+ }
+ if (typeof fn !== 'function') {
+ throw new TypeError('fn parameter is not a function')
+ }
const boundFn = fn.bind(this)
if (
this.taskFunctions.get(name) ===
this.taskFunctions.set(DEFAULT_TASK_NAME, boundFn)
}
this.taskFunctions.set(name, boundFn)
- this.sendTaskFunctionsListToMainWorker()
- return true
- } catch {
- return false
+ this.sendTaskFunctionNamesToMainWorker()
+ return { status: true }
+ } catch (error) {
+ return { status: false, error: error as Error }
}
}
*
* @param name - The name of the task function to remove.
* @returns Whether the task function existed and was removed or not.
- * @throws {@link https://nodejs.org/api/errors.html#class-typeerror} If the `name` parameter is not a string or an empty string.
- * @throws {@link https://nodejs.org/api/errors.html#class-error} If the `name` parameter is the default task function reserved name.
- * @throws {@link https://nodejs.org/api/errors.html#class-error} If the `name` parameter is the task function used as default task function.
*/
- public removeTaskFunction (name: string): boolean {
- this.checkTaskFunctionName(name)
- if (name === DEFAULT_TASK_NAME) {
- throw new Error(
- 'Cannot remove the task function with the default reserved name'
- )
- }
- if (
- this.taskFunctions.get(name) === this.taskFunctions.get(DEFAULT_TASK_NAME)
- ) {
- throw new Error(
- 'Cannot remove the task function used as the default task function'
- )
+ public removeTaskFunction (name: string): TaskFunctionOperationReturnType {
+ try {
+ this.checkTaskFunctionName(name)
+ if (name === DEFAULT_TASK_NAME) {
+ throw new Error(
+ 'Cannot remove the task function with the default reserved name'
+ )
+ }
+ if (
+ this.taskFunctions.get(name) ===
+ this.taskFunctions.get(DEFAULT_TASK_NAME)
+ ) {
+ throw new Error(
+ 'Cannot remove the task function used as the default task function'
+ )
+ }
+ const deleteStatus = this.taskFunctions.delete(name)
+ this.sendTaskFunctionNamesToMainWorker()
+ return { status: deleteStatus }
+ } catch (error) {
+ return { status: false, error: error as Error }
}
- const deleteStatus = this.taskFunctions.delete(name)
- this.sendTaskFunctionsListToMainWorker()
- return deleteStatus
}
/**
*
* @returns The names of the worker's task functions.
*/
- public listTaskFunctions (): string[] {
+ public listTaskFunctionNames (): string[] {
const names: string[] = [...this.taskFunctions.keys()]
let defaultTaskFunctionName: string = DEFAULT_TASK_NAME
for (const [name, fn] of this.taskFunctions) {
*
* @param name - The name of the task function to use as default task function.
* @returns Whether the default task function was set or not.
- * @throws {@link https://nodejs.org/api/errors.html#class-typeerror} If the `name` parameter is not a string or an empty string.
- * @throws {@link https://nodejs.org/api/errors.html#class-error} If the `name` parameter is the default task function reserved name.
- * @throws {@link https://nodejs.org/api/errors.html#class-error} If the `name` parameter is a non-existing task function.
*/
- public setDefaultTaskFunction (name: string): boolean {
- this.checkTaskFunctionName(name)
- if (name === DEFAULT_TASK_NAME) {
- throw new Error(
- 'Cannot set the default task function reserved name as the default task function'
- )
- }
- if (!this.taskFunctions.has(name)) {
- throw new Error(
- 'Cannot set the default task function to a non-existing task function'
- )
- }
+ public setDefaultTaskFunction (name: string): TaskFunctionOperationReturnType {
try {
+ this.checkTaskFunctionName(name)
+ if (name === DEFAULT_TASK_NAME) {
+ throw new Error(
+ 'Cannot set the default task function reserved name as the default task function'
+ )
+ }
+ if (!this.taskFunctions.has(name)) {
+ throw new Error(
+ 'Cannot set the default task function to a non-existing task function'
+ )
+ }
this.taskFunctions.set(
DEFAULT_TASK_NAME,
this.taskFunctions.get(name) as TaskFunction<Data, Response>
)
- return true
- } catch {
- return false
+ this.sendTaskFunctionNamesToMainWorker()
+ return { status: true }
+ } catch (error) {
+ return { status: false, error: error as Error }
}
}
} else if (message.checkActive != null) {
// Check active message received
message.checkActive ? this.startCheckActive() : this.stopCheckActive()
+ } else if (message.taskFunctionOperation != null) {
+ // Task function operation message received
+ this.handleTaskFunctionOperationMessage(message)
} else if (message.taskId != null && message.data != null) {
// Task message received
this.run(message)
}
}
+ protected handleTaskFunctionOperationMessage (
+ message: MessageValue<Data>
+ ): void {
+ const { taskFunctionOperation, taskFunctionName, taskFunction } = message
+ let response!: TaskFunctionOperationReturnType
+ if (taskFunctionOperation === 'add') {
+ response = this.addTaskFunction(
+ taskFunctionName as string,
+ // eslint-disable-next-line @typescript-eslint/no-implied-eval, no-new-func
+ new Function(`return ${taskFunction as string}`)() as TaskFunction<
+ Data,
+ Response
+ >
+ )
+ } else if (taskFunctionOperation === 'remove') {
+ response = this.removeTaskFunction(taskFunctionName as string)
+ } else if (taskFunctionOperation === 'default') {
+ response = this.setDefaultTaskFunction(taskFunctionName as string)
+ }
+ this.sendToMainWorker({
+ taskFunctionOperation,
+ taskFunctionOperationStatus: response.status,
+ taskFunctionName,
+ ...(!response.status &&
+ response?.error != null && {
+ workerError: {
+ name: taskFunctionName as string,
+ message: this.handleError(response.error as Error | string)
+ }
+ })
+ })
+ }
+
/**
* Handles a kill message sent by the main worker.
*
if (isAsyncFunction(this.opts.killHandler)) {
(this.opts.killHandler?.() as Promise<void>)
.then(() => {
- this.sendToMainWorker({ kill: 'success', workerId: this.id })
+ this.sendToMainWorker({ kill: 'success' })
return null
})
.catch(() => {
- this.sendToMainWorker({ kill: 'failure', workerId: this.id })
+ this.sendToMainWorker({ kill: 'failure' })
})
.finally(() => {
this.emitDestroy()
try {
// eslint-disable-next-line @typescript-eslint/no-invalid-void-type
this.opts.killHandler?.() as void
- this.sendToMainWorker({ kill: 'success', workerId: this.id })
+ this.sendToMainWorker({ kill: 'success' })
} catch {
- this.sendToMainWorker({ kill: 'failure', workerId: this.id })
+ this.sendToMainWorker({ kill: 'failure' })
} finally {
this.emitDestroy()
}
performance.now() - this.lastTaskTimestamp >
(this.opts.maxInactiveTime ?? DEFAULT_MAX_INACTIVE_TIME)
) {
- this.sendToMainWorker({ kill: this.opts.killBehavior, workerId: this.id })
+ this.sendToMainWorker({ kill: this.opts.killBehavior })
}
}
): void
/**
- * Sends the list of task function names to the main worker.
+ * Sends task function names to the main worker.
*/
- protected sendTaskFunctionsListToMainWorker (): void {
+ protected sendTaskFunctionNamesToMainWorker (): void {
this.sendToMainWorker({
- taskFunctions: this.listTaskFunctions(),
- workerId: this.id
+ taskFunctionNames: this.listTaskFunctionNames()
})
}
const fn = this.taskFunctions.get(name ?? DEFAULT_TASK_NAME)
if (fn == null) {
this.sendToMainWorker({
- taskError: {
+ workerError: {
name: name as string,
message: `Task function '${name as string}' not found`,
data
},
- workerId: this.id,
taskId
})
return
this.sendToMainWorker({
data: res,
taskPerformance,
- workerId: this.id,
taskId
})
} catch (error) {
this.sendToMainWorker({
- taskError: {
+ workerError: {
name: name as string,
message: this.handleError(error as Error | string),
data
},
- workerId: this.id,
taskId
})
} finally {
this.sendToMainWorker({
data: res,
taskPerformance,
- workerId: this.id,
taskId
})
- return null
+ return undefined
})
.catch(error => {
this.sendToMainWorker({
- taskError: {
+ workerError: {
name: name as string,
message: this.handleError(error as Error | string),
data
},
- workerId: this.id,
taskId
})
})