DLLClassManager Class Reference

#include <DLLClassManager.h>

Inheritance diagram for DLLClassManager:

Collaboration diagram for DLLClassManager:

List of all members.

Public Member Functions
	DLLClassManager (IInterface *iface)
virtual	~DLLClassManager ()
virtual StatusCode	loadModule (const std::string &module, bool fireIncident=true)
	Declare a sharable library to be used for creating instances of a given algorithm type.
virtual StatusCode	queryInterface (const InterfaceID &iid, void **pinterface)
	implementation of IInterface::queryInterface
Private Attributes
SmartIF< ISvcLocator >	m_svclocator
SmartIF< IMessageSvc >	m_msgsvc
SmartIF< IInterface >	m_pOuter

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Detailed Description

Definition at line 28 of file DLLClassManager.h.

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Constructor & Destructor Documentation

DLLClassManager::DLLClassManager

(

IInterface *

iface )

Definition at line 21 of file DLLClassManager.cpp.

                                                    {
  m_pOuter = iface;
  m_svclocator = m_pOuter;

  assert(m_svclocator.isValid());

  addRef(); // Initial count set to 1
}

DLLClassManager::~DLLClassManager

(

)

[virtual]

Definition at line 31 of file DLLClassManager.cpp.

                                  {
}

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Member Function Documentation

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

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

Implements IClassManager.

Definition at line 35 of file DLLClassManager.cpp.

                                                            {
  // Access the message service if not yet done already
  if (!m_msgsvc.isValid()) {
    m_msgsvc = m_svclocator;
  }
  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
    const bool CREATEIF(true);
    SmartIF<IIncidentSvc> pIncidentSvc(m_svclocator->service("IncidentSvc", CREATEIF));
    if( !pIncidentSvc.isValid() )  {
      log << MSG::FATAL << "Can not locate IncidentSvc" << endmsg;
      throw GaudiException("Error retrieving IncidentSvc",
                           "DLLClassManager::DLLClassManager", StatusCode::FAILURE);
    }
    pIncidentSvc->fireIncident(ModuleLoadedIncident("DLLClassManager",
                                                     module) );
  }

  return StatusCode::SUCCESS;
}

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

implementation of IInterface::queryInterface

Implements IInterface.

Definition at line 86 of file DLLClassManager.cpp.

                                                                                    {
  // try local interfaces
  StatusCode sc = base_class::queryInterface(iid, pinterface);
  if (sc.isSuccess()) return sc;
  // fall back on the owner
  return m_pOuter->queryInterface(iid, pinterface);
}

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Member Data Documentation

SmartIF<IMessageSvc> DLLClassManager::m_msgsvc [private]

Definition at line 47 of file DLLClassManager.h.

SmartIF<IInterface> DLLClassManager::m_pOuter [private]

Definition at line 48 of file DLLClassManager.h.

SmartIF<ISvcLocator> DLLClassManager::m_svclocator [private]

Definition at line 42 of file DLLClassManager.h.

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r0/GaudiCoreSvc/src/ApplicationMgr/DLLClassManager.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r0/GaudiCoreSvc/src/ApplicationMgr/DLLClassManager.cpp