TStreamableClass is used by the private database class and pstream in the registration of streamable classes. More...

#include <owl/streambl.h>

Inheritance diagram for owl::TStreamableClass:

Public Member Functions
	TStreamableClass (LPCSTR n, BUILDER b, int d=NoDelta, ModuleId mid=GetModuleId())
	Creates a TStreamableClass object with the given name (n) and the given builder function (b), then registers the type.
	~TStreamableClass ()
int	operator== (const TStreamableClass &n) const
int	operator< (const TStreamableClass &n) const
Public Member Functions inherited from owl::ObjectBuilder
	ObjectBuilder (BUILDER b, int d)

Additional Inherited Members
Public Types inherited from owl::ObjectBuilder
enum	{ NoDelta = -1 }
Public Attributes inherited from owl::ObjectBuilder
BUILDER	Builder
int	Delta

Detailed Description

TStreamableClass is used by the private database class and pstream in the registration of streamable classes.

Definition at line 75 of file streambl.h.

Constructor & Destructor Documentation

◆ TStreamableClass()

owl::TStreamableClass::TStreamableClass	(	LPCSTR	n,
		BUILDER	b,
		int	d = NoDelta,
		ModuleId	mid = GetModuleId() )

Creates a TStreamableClass object with the given name (n) and the given builder function (b), then registers the type.

For example, each streamable has a Build member function of type BUILDER. For type-safe object-stream I/O, the stream manager needs to access the names and the type information for each class. To ensure that the appropriate functions are linked into any application using the stream manager, you must provide a reference such as:

TStreamableClass RegClassName;

owl::TStreamableClass::TStreamableClass

TStreamableClass(LPCSTR n, BUILDER b, int d=NoDelta, ModuleId mid=GetModuleId())

Creates a TStreamableClass object with the given name (n) and the given builder function (b),...

Definition objstrm.cpp:184

where TClassName is the name of the class for which objects need to be streamed. (Note that RegClassName is a single identifier.) This not only registers TClassName (telling the stream manager which Build function to use), it also automatically registers any dependent classes. You can register a class more than once without any harm or overhead. Invoke this function to provide raw memory of the correct size into which an object of the specified class can be read. Because the Build procedure invokes a special constructor for the class, all virtual table pointers are initialized correctly. The distance, in bytes, between the base of the streamable object and the beginning of the TStreamableBase component of the object is d. Calculate d by using the _ _DELTA macro. Example

TStreamableClass RegTClassName = TStreamableClass("TClassName",

TClassName::build, _ _DELTA(TClassName));

Definition at line 184 of file objstrm.cpp.

References owl::ObjectBuilder::ObjectBuilder(), and strnewdup().

◆ ~TStreamableClass()

owl::TStreamableClass::~TStreamableClass ( )

Definition at line 197 of file objstrm.cpp.

References CONST_CAST.

Member Function Documentation

◆ operator<()

int owl::TStreamableClass::operator< ( const TStreamableClass & n ) const

inline

Definition at line 93 of file streambl.h.

References TStreamableClass().

◆ operator==()

int owl::TStreamableClass::operator== ( const TStreamableClass & n ) const

inline

Definition at line 85 of file streambl.h.