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Interface ExpiringLock

Interface for a lock that expires after a certain period of inactivity. Activity can be signaled by calling renew, which resets the expiration timeout. When the lock has expired, an expired event is emitted and the lock is released.

Hierarchy

  • Lock
  • EventEmitter
    • ExpiringLock

Implemented by

Index

Constructors

Properties

Methods

Constructors

constructor

  • new ExpiringLock(options?: EventEmitterOptions): ExpiringLock

Properties

release

release: () => Promise<void>

Release this lock.

returns

A promise resolving when the release is finished.

Type declaration

    • (): Promise<void>

    • Returns Promise<void>

renew

renew: () => void

Reset the lock expiration timeout.

Type declaration

    • (): void

    • Returns void

Static defaultMaxListeners

defaultMaxListeners: number

Static Readonly errorMonitor

errorMonitor: unique symbol

This symbol shall be used to install a listener for only monitoring 'error' events. Listeners installed using this symbol are called before the regular 'error' listeners are called.

Installing a listener using this symbol does not change the behavior once an 'error' event is emitted, therefore the process will still crash if no regular 'error' listener is installed.

Methods

addListener

  • addListener(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

emit

  • emit(event: string | symbol, ...args: any[]): boolean

  • Parameters

    • event: string | symbol
    • Rest ...args: any[]

    Returns boolean

eventNames

  • eventNames(): Array<string | symbol>

getMaxListeners

  • getMaxListeners(): number

listenerCount

  • listenerCount(event: string | symbol): number

listeners

  • listeners(event: string | symbol): Function[]

  • Parameters

    • event: string | symbol

    Returns Function[]

off

  • off(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

on

  • on(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

once

  • once(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

prependListener

  • prependListener(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

prependOnceListener

  • prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

rawListeners

  • rawListeners(event: string | symbol): Function[]

  • Parameters

    • event: string | symbol

    Returns Function[]

removeAllListeners

  • removeAllListeners(event?: string | symbol): this

removeListener

  • removeListener(event: string | symbol, listener: (...args: any[]) => void): this

  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void

        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

setMaxListeners

  • setMaxListeners(n: number): this

Static listenerCount

  • listenerCount(emitter: EventEmitter, event: string | symbol): number
  • deprecated

    since v4.0.0

    Parameters

    • emitter: EventEmitter
    • event: string | symbol

    Returns number