Manages I/O object lifecycle and dispatch. More...

#include <handler.hxx>

Inheritance diagram for dawn::CIOHandler:

Collaboration diagram for dawn::CIOHandler:

Public Member Functions
	CIOHandler ()
	Construct I/O handler.

	~CIOHandler ()=default
	Destructor.

int	bindObjects (IHandler &io, IHandler &prog, IHandler &prot, IHandler &dev)
	Bind special I/O objects (Config, Control, Trigger) to targets.

int	configureAll ()
	Configure all objects managed by this handler.

int	deinitAll ()
	De-initialize all I/O objects.

CIOCommon *	getIO (SObjectId::UObjectId &id) const
	Get I/O object by ObjectID as CIOCommon*.

CObject *	getObject (const SObjectId::ObjectId id)
	Get object by ObjectID as CObject*.

CIOCommon *	getObjectAt (size_t index) const
	Get object at index.

CIOCommon *	getObjectById (const SObjectId::UObjectId &id) const
	Get object by ObjectID.

size_t	getObjectCount () const
	Get total number of registered objects.

const std::vector< CIOCommon * > &	getObjects () const
	Get read-only access to all objects.

bool	hasThread () const
	Check if handler is currently running.

int	init (CDescriptor &desc, IIOFactory *f)
	Initialize virtual I/O.

int	initAll ()
	Configure and initialize all I/O objects.

bool	isObjectValid (SObjectId::UObjectId &obj) const
	Validate object ID.

int	objalloc (CDescriptor &desc, CDescriptor::allocobj_func_t func)
	Allocate objects from descriptor.

int	startAll ()
	Start all I/O objects.

int	stopAll ()
	Stop all I/O objects.

Protected Member Functions
const char *	getObjectTypeName () const
	Get human-readable object type name for logging.

void	onInitObject (CIOCommon *io)
	Hook called for each I/O object during initAll().

virtual void	onStartObject (CIOCommon *obj)
	Hook for subclass-specific pre-start operations.

int	registerObject (CIOCommon *obj)
	Register object.

Protected Attributes
std::vector< CIOCommon * >	objects
	Vector of registered objects.

Detailed Description

Manages I/O object lifecycle and dispatch.

Creates, initializes, starts, stops, and provides lookup for all I/O objects in the system.

Definition at line 36 of file handler.hxx.

Constructor & Destructor Documentation

◆ CIOHandler()

dawn::CIOHandler::CIOHandler ( )

inlineexplicit

Construct I/O handler.

Creates empty handler with no objects.

Definition at line 45 of file handler.hxx.

◆ ~CIOHandler()

dawn::CIOHandler::~CIOHandler ( )

default

Destructor.

All I/O objects are destroyed here if deinitAll() was not called.

Member Function Documentation

◆ bindObjects()

int CIOHandler::bindObjects	(	IHandler &	io,
		IHandler &	prog,
		IHandler &	prot,
		IHandler &	dev
	)

Bind special I/O objects (Config, Control, Trigger) to targets.

Iterates all IOs and resolves bound target object IDs for special IO types against all three handlers. Called after all initAll() phases.

Parameters

io	I/O handler for resolving IO targets.
prog	PROG handler for resolving program targets.
prot	PROTO handler for resolving protocol targets.
dev	DEV handler for resolving OBJTYPE_ANY dev-object targets.

Returns: OK on success, negative error code on failure.

Definition at line 276 of file handler.cxx.

References dawn::CObject::getCls(), dawn::CIOControl::ids, dawn::CIOTrigger::ids, dawn::CIOCommon::IO_CLASS_CONFIG, dawn::CIOCommon::IO_CLASS_CONTROL, dawn::CIOCommon::IO_CLASS_TRIGGER, dawn::CIOConfig::map, and dawn::CGenericHandler< CIOCommon >::objects.

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◆ configureAll()

int dawn::CGenericHandler< CIOCommon >::configureAll ( )

inlineinherited

Configure all objects managed by this handler.

Returns: OK on success, negative error code on failure.

Definition at line 114 of file generic_handler.hxx.

◆ deinitAll()

int dawn::CIOHandler::deinitAll ( )

inlinevirtual

De-initialize all I/O objects.

Calls deinit() method on each I/O object in reverse order.

Returns: OK if all objects deinitialized, first error otherwise.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 88 of file handler.hxx.

References dawn::CGenericHandler< T >::deinitAll().

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◆ getIO()

CIOCommon * CIOHandler::getIO ( SObjectId::UObjectId & id ) const

Get I/O object by ObjectID as CIOCommon*.

Implements IIOHandler interface.

Parameters

id	Reference to ObjectID to retrieve.

Returns: Pointer to CIOCommon object or nullptr if not found.

Definition at line 181 of file handler.cxx.

References dawn::CGenericHandler< T >::getObjectById().

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◆ getObject()

CObject * CIOHandler::getObject ( const SObjectId::ObjectId id )

virtual

Get object by ObjectID as CObject*.

Returns object as CObject pointer for generic handler operations.

Parameters

id	ObjectID to retrieve.

Returns: Pointer to CObject (CIOCommon*) or nullptr if not found.

Implements dawn::IHandler.

Definition at line 174 of file handler.cxx.

References getIO(), and dawn::SObjectId::UObjectId::v.

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◆ getObjectAt()

CIOCommon * dawn::CGenericHandler< CIOCommon >::getObjectAt ( size_t index ) const

inlineinherited

Get object at index.

Parameters

index Zero-based index.

Returns: Pointer to object, nullptr if out of bounds.

Definition at line 311 of file generic_handler.hxx.

◆ getObjectById()

CIOCommon * dawn::CGenericHandler< CIOCommon >::getObjectById ( const SObjectId::UObjectId & id ) const

inlineinherited

Get object by ObjectID.

Parameters

id	ObjectID to retrieve.

Returns: Pointer to object, nullptr if not found.

Definition at line 323 of file generic_handler.hxx.

◆ getObjects()

const std::vector< CIOCommon * > & dawn::CGenericHandler< CIOCommon >::getObjects ( ) const

inlineinherited

Get read-only access to all objects.

Returns: Const reference to object vector.

Definition at line 298 of file generic_handler.hxx.

◆ getObjectTypeName()

const char * dawn::CIOHandler::getObjectTypeName ( ) const

inlineprotectedvirtual

Get human-readable object type name for logging.

Returns: String "IO" for I/O objects.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 191 of file handler.hxx.

◆ hasThread()

bool dawn::CIOHandler::hasThread ( ) const

inlinevirtual

Check if handler is currently running.

Returns: True if startAll() has been called and stopAll() has not.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 121 of file handler.hxx.

References dawn::CGenericHandler< T >::hasThread().

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◆ init()

int CIOHandler::init	(	CDescriptor &	desc,
		IIOFactory *	f
	)

Initialize virtual I/O.

Allocates internal data structures.

Parameters

desc	Device descriptor containing I/O definitions.
f	Optional user factory for custom I/O types (can be null).

Returns: OK on success, negative error code on failure.

Definition at line 91 of file handler.cxx.

References dawn::CDevInspector::getInst(), and dawn::CDevInspector::registerIOHandler().

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◆ initAll()

int CIOHandler::initAll ( )

virtual

Configure and initialize all I/O objects.

Runs configure/init lifecycle passes for each I/O object in order.

Returns: OK if all objects initialized, first error otherwise.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 135 of file handler.cxx.

References dawn::CGenericHandler< T >::configureAll(), and dawn::CGenericHandler< T >::initAll().

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◆ isObjectValid()

bool CIOHandler::isObjectValid ( SObjectId::UObjectId & obj ) const

virtual

Validate object ID.

Checks if an ObjectID refers to a valid I/O object in this handler.

Parameters

obj	Reference to ObjectID to validate.

Returns: True if object exists, false otherwise.

Implements dawn::IHandler.

Definition at line 169 of file handler.cxx.

References dawn::SObjectId::objectIsIO().

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◆ objalloc()

int dawn::CGenericHandler< CIOCommon >::objalloc	(	CDescriptor &	desc,
		CDescriptor::allocobj_func_t	func
	)

inlineinherited

Allocate objects from descriptor.

Generic descriptor allocation using callback pattern.

Parameters

desc	Device descriptor containing object definitions.
func	Static callback: void func(CHandler& handler, CDescObject&).

Definition at line 339 of file generic_handler.hxx.

◆ onInitObject()

void CIOHandler::onInitObject ( CIOCommon * io )

protectedvirtual

Hook called for each I/O object during initAll().

Called by CGenericHandler::initAll() after init() on each object.

Parameters

io	Pointer to I/O object just initialized.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 117 of file handler.cxx.

◆ onStartObject()

virtual void dawn::CGenericHandler< CIOCommon >::onStartObject ( CIOCommon * obj )

inlineprotectedvirtualinherited

Hook for subclass-specific pre-start operations.

Parameters

obj	Pointer to object about to start.

Definition at line 70 of file generic_handler.hxx.

◆ registerObject()

int dawn::CGenericHandler< CIOCommon >::registerObject ( CIOCommon * obj )

inlineprotectedinherited

Register object.

Parameters

obj	Pointer to object to register.

Definition at line 37 of file generic_handler.hxx.

◆ startAll()

int CIOHandler::startAll ( )

virtual

Start all I/O objects.

Calls start() method on each I/O object and starts the notifier thread (if CONFIG_DAWN_IO_NOTIFY enabled).

Returns: OK if all started, first error otherwise.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 124 of file handler.cxx.

References dawn::CGenericHandler< T >::startAll().

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◆ stopAll()

int CIOHandler::stopAll ( )

virtual

Stop all I/O objects.

Stops the notifier thread (if CONFIG_DAWN_IO_NOTIFY enabled) and calls stop() method on each I/O object in reverse order.

Returns: OK if all stopped, first error otherwise.

Reimplemented from dawn::CGenericHandler< CIOCommon >.

Definition at line 156 of file handler.cxx.

References dawn::CGenericHandler< T >::stopAll().

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

dawn/include/dawn/io/handler.hxx
dawn/src/io/handler.cxx

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CIOHandler()

◆ ~CIOHandler()

Member Function Documentation

◆ bindObjects()

◆ configureAll()

◆ deinitAll()

◆ getIO()

◆ getObject()

◆ getObjectAt()

◆ getObjectById()

◆ getObjects()

◆ getObjectTypeName()

◆ hasThread()

◆ init()

◆ initAll()

◆ isObjectValid()

◆ objalloc()

◆ onInitObject()

◆ onStartObject()

◆ registerObject()

◆ startAll()

◆ stopAll()