A distributed object registry. More...

#include <objectMap.h>

Inheritance diagram for co::ObjectMap:

Collaboration diagram for co::ObjectMap:

Public Member Functions
CO_API	ObjectMap (ObjectHandler &handler, ObjectFactory &factory)
	Construct a new object map. More...

virtual CO_API	~ObjectMap ()
	Destroy this object map. More...

CO_API bool	register_ (Object *object, const uint32_t type)
	Add and register a new object as master instance to this object map. More...

CO_API bool	deregister (Object *object)
	Remove and deregister an object from this object map. More...

CO_API Object *	map (const uint128_t &identifier, Object *instance=0)
	Map and return an object. More...

CO_API bool	unmap (Object *object)
	Unmap an object from the object map. More...

CO_API void	clear ()
	Deregister or unmap all registered and mapped objects. More...

CO_API uint128_t	commit (const uint32_t incarnation=CO_COMMIT_NEXT) override
	Commit all registered objects. More...

Public Member Functions inherited from co::Serializable
CO_API uint64_t	getDirty () const

CO_API bool	isDirty () const override

virtual CO_API bool	isDirty (const uint64_t dirtyBits) const

CO_API uint128_t	commit (const uint32_t incarnation=CO_COMMIT_NEXT) override

Public Member Functions inherited from co::Object
virtual CO_API	~Object ()
	Destruct the distributed object. More...

CO_API bool	isAttached () const

CO_API LocalNodePtr	getLocalNode ()

CO_API void	setID (const uint128_t &identifier)
	Set the object's unique identifier. More...

CO_API const uint128_t &	getID () const

CO_API uint32_t	getInstanceID () const

CO_API bool	isBuffered () const

CO_API bool	isMaster () const

virtual uint64_t	getMaxVersions () const
	Limit the number of queued versions on slave instances. More...

virtual CO_API CompressorInfo	chooseCompressor () const
	Return the compressor to be used for data transmission. More...

CO_API void	push (const uint128_t &groupID, const uint128_t &objectType, const Nodes &nodes)
	Push the instance data of the object to the given nodes. More...

CO_API void	setAutoObsolete (const uint32_t count)
	Automatically obsolete old versions. More...

CO_API uint32_t	getAutoObsolete () const

virtual CO_API uint128_t	sync (const uint128_t &version=VERSION_HEAD)
	Sync to a given version. More...

CO_API uint128_t	getHeadVersion () const

CO_API uint128_t	getVersion () const

virtual CO_API void	notifyNewHeadVersion (const uint128_t &version)
	Notification that a new head version was received by a slave object. More...

virtual void	notifyNewVersion ()
	Notification that a new version was received by a master object. More...

CO_API ObjectOCommand	send (NodePtr node, const uint32_t cmd, const uint32_t instanceID=CO_INSTANCE_ALL)
	Send a command with optional data to object instance(s) on another node. More...

virtual void	notifyAttach ()
	Notify that this object will be registered or mapped. More...

virtual CO_API void	notifyDetach ()
	Notify that this object will be deregistered or unmapped. More...

virtual void	notifyDetached ()
	Notify that this object has been deregistered or unmapped. More...

uint32_t	getMasterInstanceID () const

CO_API NodePtr	getMasterNode ()

CO_API void	removeSlave (NodePtr node, const uint32_t instanceID)

CO_API void	removeSlaves (NodePtr node)

void	setMasterNode (NodePtr node)

void	addInstanceDatas (const ObjectDataIStreamDeque &, const uint128_t &)

void	setupChangeManager (const Object::ChangeType type, const bool master, LocalNodePtr localNode, const uint32_t masterInstanceID)

virtual CO_API void	attach (const uint128_t &id, const uint32_t instanceID)

virtual CO_API void	detach ()

void	transfer (Object *from)

void	applyMapData (const uint128_t &version)

void	sendInstanceData (const Nodes &nodes)

Public Member Functions inherited from co::Dispatcher
Dispatcher &	operator= (const Dispatcher &)

template<typename T >
void	registerCommand (const uint32_t command, const CommandFunc< T > &func, CommandQueue *queue)
	Register a command member function for a command. More...

virtual CO_API bool	dispatchCommand (ICommand &command)
	Dispatch a command from the receiver thread to the registered queue. More...

Protected Types
enum	DirtyBits { DIRTY_ADDED = Serializable::DIRTY_CUSTOM << 0, DIRTY_REMOVED = Serializable::DIRTY_CUSTOM << 1, DIRTY_CHANGED = Serializable::DIRTY_CUSTOM << 2, DIRTY_CUSTOM = Serializable::DIRTY_CUSTOM << 3 }

Protected Types inherited from co::Serializable
enum	DirtyBits { DIRTY_NONE = 0, DIRTY_CUSTOM = 1, DIRTY_ALL = 0xFFFFFFFFFFFFFFFFull }
	The changed parts of the serializable since the last pack(). More...

Protected Member Functions
CO_API bool	isDirty () const override
	Return if this object needs a commit. More...

CO_API void	serialize (DataOStream &os, const uint64_t dirtyBits) override
	Worker for pack() and getInstanceData(). More...

CO_API void	deserialize (DataIStream &is, const uint64_t dirtyBits) override
	Worker for unpack() and applyInstanceData(). More...

ChangeType	getChangeType () const override

CO_API void	notifyAttached () override
	Notify that this object has been registered or mapped. More...

Protected Member Functions inherited from co::Serializable
CO_API	Serializable ()
	Construct a new Serializable. More...

CO_API	Serializable (const Serializable &)
	Construct an unmapped, unregistered copy of a serializable. More...

virtual CO_API	~Serializable ()
	Destruct the serializable. More...

Serializable &	operator= (const Serializable &from)
	NOP assignment operator. More...

virtual CO_API void	setDirty (const uint64_t bits)
	Add dirty flags to mark data for distribution. More...

virtual CO_API void	unsetDirty (const uint64_t bits)
	Remove dirty flags to clear data from distribution. More...

ChangeType	getChangeType () const override

CO_API void	notifyAttached () override

void	getInstanceData (co::DataOStream &os) override
	Serialize all instance information of this distributed object. More...

CO_API void	applyInstanceData (co::DataIStream &is) override
	Deserialize the instance data. More...

CO_API void	pack (co::DataOStream &os) final
	Serialize the modifications since the last call to commit(). More...

CO_API void	unpack (co::DataIStream &is) final
	Deserialize a change. More...

Protected Member Functions inherited from co::Object
CO_API	Object ()
	Construct a new distributed object. More...

Object &	operator= (const Object &)
	NOP assignment operator. More...

CO_API	Object (const Object &)
	Copy construct a new, unattached object. More...

Protected Member Functions inherited from co::Dispatcher
CO_API	Dispatcher (const Dispatcher &from)

CO_API bool	_cmdUnknown (ICommand &command)
	The default handler for handling commands. More...

Additional Inherited Members
Public Types inherited from co::Object
enum	ChangeType { NONE, STATIC, INSTANCE, DELTA, UNBUFFERED }
	Object change handling characteristics, see Programming Guide. More...

Public Types inherited from co::Dispatcher
typedef CommandFunc< Dispatcher >	Func
	The signature of the base Dispatcher callback. More...

Detailed Description

A distributed object registry.

The object map takes care of distribution and synchronization of registered objects across all slave instances. Objects are registered with an additional type to resolve the creation of new objects during mapping. This creation is handled by an ObjectFactory which has to be provided and implemented for the desired object types.

Definition at line 42 of file objectMap.h.

Constructor & Destructor Documentation

CO_API co::ObjectMap::ObjectMap	(	ObjectHandler &	handler,
		ObjectFactory &	factory
	)

Construct a new object map.

Parameters

handler	used for object registration and mapping
factory	to create & destroy slave objects

Version: 1.0

virtual CO_API co::ObjectMap::~ObjectMap ( )

virtual

Destroy this object map.

All registered and mapped objects will be deregistered and unmapped. All mapped and owned objects will be destroyed using the object factory.

Version: 1.0

Member Function Documentation

CO_API void co::ObjectMap::clear ( )

Deregister or unmap all registered and mapped objects.

Version: 1.0

CO_API uint128_t co::ObjectMap::commit ( const uint32_t incarnation = CO_COMMIT_NEXT )

overridevirtual

Commit all registered objects.

Version: 1.0

Reimplemented from co::Object.

CO_API bool co::ObjectMap::deregister ( Object * object )

Remove and deregister an object from this object map.

Upon deregistering using the map's object handler, this object will be remembered for unmap and possible deletion on the next commit of this object map.

Parameters

object the object to remove and deregister

Returns: false on if object was not registered, true otherwise

Version: 1.0

CO_API void co::ObjectMap::deserialize	(	DataIStream &	,
		const uint64_t
	)

overrideprotectedvirtual

Worker for unpack() and applyInstanceData().

This function is called with the dirty bits send by the master instance. The dirty bits are received beforehand, and do not need to be deserialized by the overriding method.

See also: serialize()

Version: 1.0

Implements co::Serializable.

ChangeType co::ObjectMap::getChangeType ( ) const

inlineoverrideprotectedvirtual

Returns: how the changes are to be handled.

Version: 1.0

Reimplemented from co::Object.

Definition at line 136 of file objectMap.h.

CO_API bool co::ObjectMap::isDirty ( ) const

overrideprotectedvirtual

Return if this object needs a commit.

This function is used for optimization, to detect early that no commit is needed. If it returns true, pack() or getInstanceData() will be executed. The serialization methods can still decide to not write any data, upon which no new version will be created. If it returns false, commit() will exit early.

Returns: true if a commit is needed.

Version: 1.0

Reimplemented from co::Object.

CO_API Object* co::ObjectMap::map	(	const uint128_t &	identifier,
		Object *	instance = `0`
	)

Map and return an object.

The object is either created via its type specified upon registering or an already created instance is used if passed to this function. Passed instances will not be considered for deletion during explicit unmap(), implicit unmap caused by deregister(), or destruction of this object map.

The object will be mapped to the version that was current on registration time.

Parameters

identifier	unique object identifier used for map operation
instance	already created instance to skip factory creation

Returns: 0 if not registered, the valid instance otherwise

Version: 1.0

CO_API void co::ObjectMap::notifyAttached ( )

overrideprotectedvirtual

Notify that this object has been registered or mapped.

The method is called from the thread initiating the registration or mapping, after the operation has been completed successfully.

See also: isMaster()

Version: 1.0

Reimplemented from co::Object.

CO_API bool co::ObjectMap::register_	(	Object *	object,
		const uint32_t	type
	)

Add and register a new object as master instance to this object map.

Upon registering using the map's object handler, this object will be remembered for serialization on the next commit of this object map.

Parameters

object	the new object to add and register
type	unique object type to create object via slave factory

Returns: false on failed ObjectHandler::registerObject, true otherwise

Version: 1.0

CO_API void co::ObjectMap::serialize	(	DataOStream &	,
		const uint64_t
	)

overrideprotectedvirtual

Worker for pack() and getInstanceData().

Override this and deserialize() to distribute subclassed data.

This method is called with DIRTY_ALL from getInstanceData() and with the actual dirty bits from pack(), which also resets the dirty state afterwards. The dirty bits are transmitted beforehand, and do not need to be transmitted by the overriding method.

Version: 1.0

Implements co::Serializable.

CO_API bool co::ObjectMap::unmap ( Object * object )

Unmap an object from the object map.

The object is unmapped using the map's object handler and will not be considered for further synchronization. The object will be destructed if if was created by the object map.

Parameters

object the object to unmap

Returns: false on if object was not mapped, true otherwise

Version: 1.0

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

objectMap.h

Public Member Functions

Protected Types

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation