isCancelled

import Dispatch

protocol DispatchSourceProtocol

@frozen struct Bool

A value type whose instances are either true or false.

var data: UInt { get }

var handle: UInt { get }

var mask: UInt { get }

func cancel()

func resume()

func setCancelHandler(handler: DispatchWorkItem)

func setCancelHandler(qos: DispatchQoS, flags: DispatchWorkItemFlags, handler: DispatchSourceHandler?)

func setEventHandler(handler: DispatchWorkItem)

func setEventHandler(qos: DispatchQoS, flags: DispatchWorkItemFlags, handler: DispatchSourceHandler?)

func setRegistrationHandler(handler: DispatchWorkItem)

func setRegistrationHandler(qos: DispatchQoS, flags: DispatchWorkItemFlags, handler: DispatchSourceHandler?)

func suspend()

var isCancelled: Bool { get }