qb::io::async::event::io Struct Reference

Event for file descriptor I/O readiness notifications (read/write). More...

#include <io.h>

Inheritance diagram for qb::io::async::event::io:

Collaboration diagram for qb::io::async::event::io:

Public Types
using	base_t = base<ev::io>
	Base type alias for base<ev::io>.
Public Types inherited from qb::io::async::event::base< ev::io >
using	ev_t
	Alias for the underlying libev event watcher type.

Public Member Functions
	io (ev::loop_ref loop)
	Constructor.
Public Member Functions inherited from qb::io::async::event::base< ev::io >
	base (ev::loop_ref loop)
	Constructor.

Additional Inherited Members
Public Attributes inherited from qb::io::async::event::base< ev::io >
IRegisteredKernelEvent *	_interface
	Pointer to the kernel event interface responsible for handling this event.
int	_revents
	Stores the event flags (e.g., EV_READ, EV_WRITE) received from libev when the event triggers.

Detailed Description

Event for file descriptor I/O readiness notifications (read/write).

This event extends qb::io::async::event::base<ev::io> and thus wraps an ev::io watcher from libev. It is used by asynchronous I/O components (like those derived from qb::io::async::input, output, or io) to monitor file descriptors (e.g., sockets) for readiness to perform read or write operations without blocking.

The _revents member of this struct (inherited from event::base) will contain flags like EV_READ or EV_WRITE indicating the type of readiness.

Note

This event is primarily used internally by the qb-io asynchronous framework (e.g., within qb::io::async::io::on(event::io const &event)). Application code typically handles higher-level events like message arrival or disconnection rather than directly processing this raw I/O readiness event.

Constructor & Destructor Documentation

io()

qb::io::async::event::io::io ( ev::loop_ref loop )

inlineexplicit

Constructor.

Parameters

loop	Reference to the libev event loop (ev::loop_ref) this event watcher will be associated with.