| # Gaudi Framework, version v21r8 |

Home |  | Generated: 17 Mar 2010

# DLLClassManager Class Reference

`#include <DLLClassManager.h>`

Inheritance diagram for DLLClassManager:

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Collaboration diagram for DLLClassManager:

[legend]

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

## Detailed Description

Definition at line 28 of file DLLClassManager.h.

## Constructor & Destructor Documentation

DLLClassManager::DLLClassManager | ( | IInterface * | iface | ) |

Definition at line 21 of file DLLClassManager.cpp.

    00021                                                     {
    00022   m_pOuter = iface;
    00023   m_svclocator = m_pOuter;
    00024
    00025   assert(m_svclocator.isValid());
    00026
    00027   addRef(); // Initial count set to 1
    00028 }

DLLClassManager::~DLLClassManager | ( |  | ) | `[virtual]`

Definition at line 31 of file DLLClassManager.cpp.

    00031                                   {
    00032 }

## 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.

    00036                                                             {
    00037   // Access the message service if not yet done already
    00038   if (!m_msgsvc.isValid()) {
    00039     m_msgsvc = m_svclocator;
    00040   }
    00041   MsgStream log(m_msgsvc, "DllClassManager");
    00042
    00043   std::string mod = module=="" ? System::moduleNameFull() : module;
    00044   if( module == "NONE" ) return StatusCode::SUCCESS;
    00045
    00046   void* libHandle = 0;
    00047   StatusCode status = StatusCode::FAILURE;
    00048   try
    00049   {
    00050     status = System::loadDynamicLib( module, &libHandle);
    00051   }
    00052   catch ( const std::exception & excpt )
    00053   {
    00054     if ( m_msgsvc )
    00055     {
    00056       log << MSG::ERROR << "Exception whilst loading " << module << " : " << excpt.what() << endmsg;
    00057     }
    00058     status = StatusCode::FAILURE;
    00059   }
    00060
    00061   if( status.isFailure() ) {
    00062     // DLL library not loaded
    00063     log << MSG::ERROR << "Could not load module " << module << endmsg;
    00064     log << MSG::ERROR << "System Error: " << System::getLastErrorString() << endmsg;
    00065     return StatusCode::FAILURE;
    00066   }
    00067   //FIXME this is a hack to avoid a very early call to moduleLoad from
    00068   //FIXME AppMgr::i_startup
    00069   if (fireIncident && module != "") {
    00070     //now fire ModuleLoadedIncident
    00071     const bool CREATEIF(true);
    00072     SmartIF<IIncidentSvc> pIncidentSvc(m_svclocator->service("IncidentSvc", CREATEIF));
    00073     if( !pIncidentSvc.isValid() )  {
    00074       log << MSG::FATAL << "Can not locate IncidentSvc" << endmsg;
    00075       throw GaudiException("Error retrieving IncidentSvc",
    00076                            "DLLClassManager::DLLClassManager", StatusCode::FAILURE);
    00077     }
    00078     pIncidentSvc->fireIncident(ModuleLoadedIncident("DLLClassManager",
    00079                                                      module) );
    00080   }
    00081
    00082   return StatusCode::SUCCESS;
    00083 }

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

implementation of IInterface::queryInterface

Implements IInterface.

Definition at line 86 of file DLLClassManager.cpp.

    00086                                                                                     {
    00087   // try local interfaces
    00088   StatusCode sc = base_class::queryInterface(iid, pinterface);
    00089   if (sc.isSuccess()) return sc;
    00090   // fall back on the owner
    00091   return m_pOuter->queryInterface(iid, pinterface);
    00092 }

## Member Data Documentation

SmartIF<ISvcLocator> DLLClassManager::m_svclocator`[private]`

Definition at line 42 of file DLLClassManager.h.

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.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r8/GaudiSvc/src/ApplicationMgr/DLLClassManager.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r8/GaudiSvc/src/ApplicationMgr/DLLClassManager.cpp