osg::SharedObject Class Reference

#include <OSGSharedObjectHandler.h>

Inheritance diagram for osg::SharedObject:

List of all members.

Public Types
enum	SharedObjectType { Invalid = 0x0000, Application = 0x0001, SharedLibrary = 0x0002 }
Public Member Functions
bool	open (void)
AnonSymbolHandle	getSymbol (const Char8 *szSymbolName)
bool	isOpen (void)
bool	reOpen (void)
const std::string &	getName (void)
const Char8 *	getCName (void)
void	dump (void)
Reference Counting
void	addRef (void)
void	subRef (void)
Int32	getRefCount (void)
Protected Member Functions
	SharedObject (const Char8 *szName)
virtual	~SharedObject (void)
bool	close (void)
Protected Attributes
std::string	_szName
SharedHandle	_pHandle
SharedObjectType	_type
Static Protected Attributes
static Char8	_szApplicationObjectName [] = "Application"
Private Types
typedef MemoryObject	Inherited
Private Member Functions
	SharedObject (const SharedObject &source)
void	operator= (const SharedObject &source)
Friends
class	SharedObjectHandler

---

Detailed Description

Definition at line 99 of file OSGSharedObjectHandler.h.

---

Member Typedef Documentation

typedef MemoryObject osg::SharedObject::Inherited [private]

Definition at line 132 of file OSGSharedObjectHandler.h.

---

Member Enumeration Documentation

enum osg::SharedObject::SharedObjectType

Enumerator:

Invalid
Application
SharedLibrary

Definition at line 111 of file OSGSharedObjectHandler.h.

    {
        Invalid       = 0x0000,
        Application   = 0x0001,
        SharedLibrary = 0x0002
    };

---

Constructor & Destructor Documentation

osg::SharedObject::SharedObject

(

const SharedObject &

source

)

[private]

SharedObject::SharedObject

(

const Char8 *

szName

)

[protected]

Definition at line 109 of file OSGSharedObjectHandler.cpp.

References _szApplicationObjectName, _szName, _type, Application, and FINFO.

                                              :
     Inherited(       ),
    _szName   (       ),
    _pHandle  (NULL   ),
    _type     (Invalid)
{
    if(szName == NULL)
    {
        _szName.assign(_szApplicationObjectName);

        _type = Application;
    }
    else
    {
        _szName.assign(szName);

        _type = SharedLibrary;
    }    
    
    FINFO(("construct SharedObject %s\n", _szName.c_str()));
}

SharedObject::~SharedObject

(

void

)

[protected, virtual]

Definition at line 131 of file OSGSharedObjectHandler.cpp.

References _szName, and FINFO.

{
    FINFO(("destroy SharedObject %s\n", _szName.c_str()));
}

---

Member Function Documentation

void osg::SharedObject::operator=

(

const SharedObject &

source

)

[private]

bool SharedObject::close

(

void

)

[protected]

Definition at line 136 of file OSGSharedObjectHandler.cpp.

References _pHandle.

Referenced by reOpen().

{
    bool returnValue = false;

    if(_pHandle != NULL)
    {
#ifndef WIN32
        returnValue = (dlclose(_pHandle) == 0);
#else
        returnValue = FreeLibrary(_pHandle);
#endif
        _pHandle    = NULL;
    }

    return returnValue;
}

bool SharedObject::open

(

void

)

Definition at line 159 of file OSGSharedObjectHandler.cpp.

References _pHandle, _szName, _type, and FWARNING.

Referenced by osg::SharedObjectHandler::getSharedObject(), getSymbol(), and reOpen().

{
    const Char8 *libName = NULL;

    if(_pHandle != NULL)
    {
        return true;
    }

    if(_type == SharedLibrary)
    {
        libName = _szName.c_str();
    }
    
#ifndef WIN32
#ifdef OSG_DLOPEN_LAZY
    _pHandle = dlopen(libName, RTLD_LAZY);
#else
    _pHandle = dlopen(libName, RTLD_NOW);
#endif

    if(_pHandle == NULL)
    {
        FWARNING(("Could not open shared object : %s\n", dlerror()));
    }
#else

    if(libName == NULL)
    {
        Char8 szModuleName[1024];

        GetModuleFileName(NULL, szModuleName, 1024);

        _pHandle = LoadLibrary(szModuleName);
    }
    else
    {
        _pHandle = LoadLibrary(libName);
    }
#endif

    return (_pHandle != NULL);
}

AnonSymbolHandle SharedObject::getSymbol

(

const Char8 *

szSymbolName

)

Definition at line 203 of file OSGSharedObjectHandler.cpp.

References _pHandle, FWARNING, isOpen(), and open().

{
    AnonSymbolHandle returnValue = NULL;

    if(isOpen() == false)
    {
        if(open() == false)
        {
            return returnValue;
        }
    }

    if(_pHandle != NULL && szSymbolName != NULL)
    {
#ifndef WIN32
        returnValue = dlsym(_pHandle, szSymbolName);
#else
        returnValue = GetProcAddress(_pHandle, szSymbolName);
#endif
    }

#ifndef WIN32
    if(returnValue == NULL)
    {
        FWARNING(("could not get symbol %s : %s\n", szSymbolName, dlerror()));
    }
#else
#endif

    return returnValue;
}

bool SharedObject::isOpen

(

void

)

Definition at line 235 of file OSGSharedObjectHandler.cpp.

References _pHandle.

Referenced by getSymbol().

{
    return _pHandle != NULL;
}

bool SharedObject::reOpen

(

void

)

Definition at line 240 of file OSGSharedObjectHandler.cpp.

References close(), and open().

{
    close();
    
    return open();
}

const std::string & SharedObject::getName

(

void

)

Definition at line 247 of file OSGSharedObjectHandler.cpp.

References _szName.

Referenced by osg::SharedObjectHandler::getSharedObject().

{
    return _szName;
}

const Char8 * SharedObject::getCName

(

void

)

Definition at line 252 of file OSGSharedObjectHandler.cpp.

References _szName.

Referenced by osg::SharedObjectHandler::removeSharedObject().

{
    return _szName.c_str();
}

void SharedObject::dump

(

void

)

Definition at line 257 of file OSGSharedObjectHandler.cpp.

References _pHandle, _szName, and FINFO.

{
    FINFO(("\tObject %s | %p\n", _szName.c_str(), _pHandle));
}

void MemoryObject::addRef

(

void

)

[inherited]

Definition at line 64 of file OSGMemoryObject.cpp.

References osg::MemoryObject::_refCount.

Referenced by osg::SharedObjectHandler::getSharedObject(), and osg::SharedObjectHandler::initialize().

{
    _refCount++;
}

void MemoryObject::subRef

(

void

)

[inherited]

Definition at line 69 of file OSGMemoryObject.cpp.

References osg::MemoryObject::_refCount.

{
    _refCount--;

    if(_refCount <= 0)
        delete this;
}

Int32 MemoryObject::getRefCount

(

void

)

[inherited]

Definition at line 77 of file OSGMemoryObject.cpp.

References osg::MemoryObject::_refCount.

{
    return _refCount;
}

---

Friends And Related Function Documentation

friend class SharedObjectHandler [friend]

Definition at line 138 of file OSGSharedObjectHandler.h.

---

Member Data Documentation

Char8 SharedObject::_szApplicationObjectName = "Application" [static, protected]

Definition at line 179 of file OSGSharedObjectHandler.h.

Referenced by osg::SharedObjectHandler::findSharedObject(), osg::SharedObjectHandler::removeSharedObject(), and SharedObject().

std::string osg::SharedObject::_szName [protected]

Definition at line 189 of file OSGSharedObjectHandler.h.

Referenced by dump(), getCName(), getName(), open(), SharedObject(), and ~SharedObject().

SharedHandle osg::SharedObject::_pHandle [protected]

Definition at line 190 of file OSGSharedObjectHandler.h.

Referenced by close(), dump(), getSymbol(), isOpen(), and open().

SharedObjectType osg::SharedObject::_type [protected]

Definition at line 192 of file OSGSharedObjectHandler.h.

Referenced by open(), and SharedObject().

---

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

• OSGSharedObjectHandler.h
• OSGSharedObjectHandler.cpp