Gaudi Framework, version v20r2
	Generated: 18 Jul 2008

DLLClassManager Class Reference

#include <DLLClassManager.h>

Inheritance diagram for DLLClassManager:

[legend]Collaboration diagram for DLLClassManager:

[legend]List of all members.

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Detailed Description

Definition at line 28 of file DLLClassManager.h.

Public Member Functions
	DLLClassManager (IInterface *iface)
virtual	~DLLClassManager ()
virtual StatusCode	loadModule (const std::string &module, bool fireIncident=true)
	Declare a shareable library to be used for creating instances of a given algorithm type.
virtual unsigned long	addRef ()
	Increment the reference count of Interface instance.
virtual unsigned long	release ()
	Release Interface instance.
virtual StatusCode	queryInterface (const InterfaceID &iid, void **pinterface)
	Query interfaces of Interface.
Private Attributes
unsigned long	m_refcount
ISvcLocator *	m_svclocator
IAlgManager *	m_algmanager
ISvcManager *	m_svcmanager
ICnvManager *	m_cnvmanager
IObjManager *	m_objmanager
IMessageSvc *	m_msgsvc
IInterface *	m_pOuter

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Constructor & Destructor Documentation

DLLClassManager::DLLClassManager

(

IInterface *

iface

)

Definition at line 18 of file DLLClassManager.cpp.

References StatusCode::ignore(), IID_ISvcLocator, m_msgsvc, m_pOuter, m_refcount, m_svclocator, and IInterface::queryInterface().

                                                    {
  m_pOuter = iface;
  m_pOuter->queryInterface(IID_ISvcLocator, pp_cast<void>(&m_svclocator)).ignore();
  assert( 0 != m_svclocator );
  m_msgsvc     = 0;
//  m_algmanager = 0;
//  m_svcmanager = 0;
//  m_cnvmanager = 0;
//  m_objmanager = 0;
  m_refcount   = 1;
}

DLLClassManager::~DLLClassManager

(

)

[virtual]

Definition at line 31 of file DLLClassManager.cpp.

References m_msgsvc, m_svclocator, and IInterface::release().

                                  {
  if( m_msgsvc ) m_msgsvc->release();
  //if( m_algmanager ) m_algmanager->release();
  //if( m_svcmanager ) m_svcmanager->release();
  //if( m_cnvmanager ) m_cnvmanager->release();
  //if( m_objmanager ) m_objmanager->release();
  if( m_svclocator ) m_svclocator->release();
}

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Member Function Documentation

StatusCode DLLClassManager::loadModule	(	const std::string &	module,
		bool	fireIncident = true
	)			[virtual]

Declare a shareable library to be used for creating instances of a given algorithm type.

Implements IClassManager.

Definition at line 41 of file DLLClassManager.cpp.

References endmsg(), endreq(), MSG::ERROR, StatusCode::FAILURE, MSG::FATAL, IIncidentSvc::fireIncident(), System::getLastErrorString(), ISvcLocator::getService(), StatusCode::ignore(), IID_IMessageSvc, StatusCode::isFailure(), System::loadDynamicLib(), m_msgsvc, m_svclocator, System::moduleNameFull(), IInterface::release(), ISvcLocator::service(), StatusCode::SUCCESS, and std::exception::what().

Referenced by ApplicationMgr::decodeDllNameList(), and ApplicationMgr::i_startup().

                                                            {
  // Access the message service if not yet done already
  if( m_msgsvc == 0 ) {
    m_svclocator->getService( "MessageSvc", IID_IMessageSvc, *pp_cast<IInterface>(&m_msgsvc) ).ignore();
  }
  MsgStream log(m_msgsvc, "DllClassManager");

  std::string mod = module=="" ? System::moduleNameFull() : module;
  if( module == "NONE" ) return StatusCode::SUCCESS;

  void* libHandle = 0;
  StatusCode status = StatusCode::FAILURE;
  try
  {
    status = System::loadDynamicLib( module, &libHandle);
  }
  catch ( const std::exception & excpt )
  {
    if ( m_msgsvc )
    {
      log << MSG::ERROR << "Exception whilst loading " << module << " : " << excpt.what() << endmsg;
    }
    status = StatusCode::FAILURE;
  }

  if( status.isFailure() ) {
    // DLL library not loaded
    log << MSG::ERROR << "Could not load module " << module << endmsg;
    log << MSG::ERROR << "System Error: " << System::getLastErrorString() << endmsg;
    return StatusCode::FAILURE; 
  }
  //FIXME this is a hack to avoid a very early call to moduleLoad from
  //FIXME AppMgr::i_startup
  if (fireIncident && module != "") {
    //now fire ModuleLoadedIncident
    IIncidentSvc* pIncidentSvc(0);
    const bool CREATEIF(true);
    StatusCode sc(m_svclocator->service("IncidentSvc", pIncidentSvc, CREATEIF));
    if( !sc.isSuccess() )  {
      log << MSG::FATAL << "Can not locate IncidentSvc" << endreq;
      throw GaudiException("Error retrieving IncidentSvc", 
                           "DLLClassManager::DLLClassManager", sc);
    }
    pIncidentSvc->fireIncident(ModuleLoadedIncident("DLLClassManager",
                                                     module) );
    pIncidentSvc->release();
  }

  return StatusCode::SUCCESS;
}

unsigned long DLLClassManager::addRef

(

)

[virtual]

Increment the reference count of Interface instance.

Implements IInterface.

Definition at line 94 of file DLLClassManager.cpp.

References m_refcount.

Referenced by queryInterface().

                                      {
  m_refcount++;
        return m_refcount;
}

unsigned long DLLClassManager::release

(

)

[virtual]

Release Interface instance.

Implements IInterface.

Definition at line 100 of file DLLClassManager.cpp.

References count(), and m_refcount.

Referenced by ApplicationMgr::~ApplicationMgr().

                                       {
  unsigned long count = --m_refcount;
  if( count <= 0) {
    delete this;
  }
  return count;
}

StatusCode DLLClassManager::queryInterface	(	const InterfaceID &	iid,
		void **	pinterface
	)			[virtual]

Query interfaces of Interface.

Parameters:

	riid	ID of Interface to be retrieved
	ppvInterface	Pointer to Location for interface pointer

Implements IInterface.

Definition at line 109 of file DLLClassManager.cpp.

References addRef(), IID_IClassManager, IID_IInterface, m_pOuter, IInterface::queryInterface(), and StatusCode::SUCCESS.

                                                                                    {
  if( iid == IID_IInterface ) {  
    *pinterface = (IInterface*)this;
    addRef();
    return StatusCode::SUCCESS;
  } 
  else if ( iid == IID_IClassManager ) {
    *pinterface = (IClassManager*)this;
    addRef();
    return StatusCode::SUCCESS;
  } 
  else {
    return m_pOuter->queryInterface(iid, pinterface);
  } 
  return StatusCode::SUCCESS;
}

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Member Data Documentation

unsigned long DLLClassManager::m_refcount [private]

Definition at line 46 of file DLLClassManager.h.

Referenced by addRef(), DLLClassManager(), and release().

ISvcLocator* DLLClassManager::m_svclocator [private]

Definition at line 47 of file DLLClassManager.h.

Referenced by DLLClassManager(), loadModule(), and ~DLLClassManager().

IAlgManager* DLLClassManager::m_algmanager [private]

Definition at line 48 of file DLLClassManager.h.

ISvcManager* DLLClassManager::m_svcmanager [private]

Definition at line 49 of file DLLClassManager.h.

ICnvManager* DLLClassManager::m_cnvmanager [private]

Definition at line 50 of file DLLClassManager.h.

IObjManager* DLLClassManager::m_objmanager [private]

Definition at line 51 of file DLLClassManager.h.

IMessageSvc* DLLClassManager::m_msgsvc [private]

Definition at line 52 of file DLLClassManager.h.

Referenced by DLLClassManager(), loadModule(), and ~DLLClassManager().

IInterface* DLLClassManager::m_pOuter [private]

Definition at line 53 of file DLLClassManager.h.

Referenced by DLLClassManager(), and queryInterface().

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r2/GaudiSvc/v17r1/src/ApplicationMgr/DLLClassManager.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r2/GaudiSvc/v17r1/src/ApplicationMgr/DLLClassManager.cpp

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