dawn::IIONotifier Class Reference

Abstract interface for registering asynchronous I/O notification. More...

#include <inotifier.hxx>

Inheritance diagram for dawn::IIONotifier:

Classes
struct	SIONotifier
	Notifier registration structure. More...

Public Types
typedef int(*	notifier_cb_t) (void *priv, io_ddata_t *data)
	Notifier callback function type.

Public Member Functions
virtual int	notifyData (CIOCommon *io, io_ddata_t *data)
	Emit an immediate notification for already-available data.
virtual int	regNotifier (SIONotifier n)=0
	Register I/O notification callback.

Detailed Description

Abstract interface for registering asynchronous I/O notification.

Enables event-driven architecture where I/O data arrival triggers callback execution from a dedicated worker thread.

Definition at line 24 of file inotifier.hxx.

Member Typedef Documentation

notifier_cb_t

typedef int(* dawn::IIONotifier::notifier_cb_t) (void *priv, io_ddata_t *data)

Notifier callback function type.

Callback signature for I/O notification events.

Parameters

priv	Private context pointer registered with callback.
data	Dynamically allocated I/O data (io_ddata_t*).

Returns

Reserved for future use (currently unused).

Definition at line 37 of file inotifier.hxx.

Member Function Documentation

notifyData()

virtual int dawn::IIONotifier::notifyData ( CIOCommon *  io, io_ddata_t *  data  )

inlinevirtual

Emit an immediate notification for already-available data.

Poll-based notifiers still use regNotifier() for fd-driven updates; this hook covers synchronous writes where the payload is already available.

Parameters

io	I/O object that produced the data.
data	Data payload to pass to callbacks.

Returns

OK on success, negative error code on failure.

Reimplemented in dawn::CIONotifier.

Definition at line 103 of file inotifier.hxx.

regNotifier()

virtual int dawn::IIONotifier::regNotifier ( SIONotifier  n )

pure virtual

Register I/O notification callback.

Implements IIONotifier interface.

Parameters

n	SIONotifier structure containing callback configuration.

Returns

OK on success, negative error code on failure.

Implemented in dawn::CIONotifier, dawn::CStreamNotifier, and dawn::CIOVirt.

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The documentation for this class was generated from the following file:

• dawn/include/dawn/io/inotifier.hxx