Event Loops

Detailed Description

Application is the console process root. There is one instance. It uses an EventLoop. run() enters that loop. exit() leaves it. Command line arguments, environment variables, the working directory, and C signals are Application services.

EventLoop is the dispatch core of a thread or process. It is an EventSink. commitEvent() queues an event and wakes the loop. queueEvent() queues without waking. wake() starts processing. Events are delivered on eventReceived in the thread that called run(). MainLoop is the platform EventLoop.

A Selectable attaches with setActive so the loop can wait for it. detach() removes it and cancels outstanding operations. Timer is not a Selectable. It registers with setActive and emits timeout at an interval.

EventSource sends events to EventSink objects in other threads. Signal is not thread-safe. EventSource is.

Classes
class	Application
	Console process root. More...
class	EventLoop
	Event loop of a thread or process. More...
class	AsyncYield
	Awaitable that schedules a resume in the EventLoop. More...
class	EventSink
	Receiver for events. More...
class	EventSource
	Sends events to sinks in other threads. More...
class	MainLoop
	Platform event loop. More...
class	Selectable
	Operation that runs through an event loop. More...
class	Timer
	Interval timeout notifications. More...
class	AsyncWait
	Awaitable for async one-shot timer delay. More...