| # Gaudi Framework, version v21r6 |

Home |  | Generated: 11 Nov 2009

# Gaudi::BootSvcLocator Class Reference

Inheritance diagram for Gaudi::BootSvcLocator:

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Collaboration diagram for Gaudi::BootSvcLocator:

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List of all members.

## Detailed Description

A dual-stage boostrap mechanism is used to ensure an orderly startup of the ApplicationMgr.

If this function is called before the singleton ApplicationMgr instance exists, a BootstrapAppMgr singleton instance is created. This responds to any subsequent requests for services by returning StatusCode::FAILURE, unless the ApplicationMgr singleton instance has been created in the interim. In this case, the BootstrapAppMgr forwards the request to the ApplicationMgr instance. The motiviation for this is to handle static object instances where the constructor attempts to locate services and would otherwise instantiate the ApplicationMgr instance in an unorderly manner. This logic requires that the ApplicationMgr instance is created explicitly.

Definition at line 37 of file Bootstrap.cpp.

## Public Member Functions
| BootSvcLocator ()
virtual | ~BootSvcLocator ()
virtual StatusCode | getService (const Gaudi::Utils::TypeNameString &typeName, const InterfaceID &iid, IInterface *&pinterface)
| Get a specific interface pointer given a service name and interface id.
virtual StatusCode | getService (const Gaudi::Utils::TypeNameString &typeName, IService *&svc, const bool createIf=true)
| Get a reference to the service given a service name.
virtual const std::list < IService * > & | getServices () const
| Get a reference to a service and create it if it does not exists.
virtual bool | existsService (const std::string &name) const
| Check the existence of a service given a service name.
virtual SmartIF< IService > & | service (const Gaudi::Utils::TypeNameString &typeName, const bool createIf=true)
| Returns a smart pointer to a service.

## Constructor & Destructor Documentation

BootSvcLocator::BootSvcLocator | ( |  | ) |

Definition at line 243 of file Bootstrap.cpp.

    00243                                {
    00244 }

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

Definition at line 245 of file Bootstrap.cpp.

    00245                                 {
    00246 }

## Member Function Documentation

StatusCode Gaudi::BootSvcLocator::getService | ( | const Gaudi::Utils::TypeNameString & | typeName,
|  | const InterfaceID & | iid,
|  | IInterface *& | pinterface |
| ) |  |  | `[virtual]`

Get a specific interface pointer given a service name and interface id.

Parameters:

  | name | Service name
  | iid | Interface ID
  | pinterface | Returned pointer to the requested interface

Reimplemented from ISvcLocator.

Definition at line 249 of file Bootstrap.cpp.

    00251                                                                  {
    00252   StatusCode sc = StatusCode::FAILURE;
    00253   if ( s_appmgrInstance.isValid() ) {
    00254     sc = s_svclocInstance->getService(typeName, iid, pinterface );
    00255   } else {
    00256     pinterface = s_bootInterface.get();
    00257   }
    00258   return sc;
    00259 }

StatusCode Gaudi::BootSvcLocator::getService | ( | const Gaudi::Utils::TypeNameString & | typeName,
|  | IService *& | svc,
|  | const bool | createIf = `true` |
| ) |  |  | `[virtual]`

Get a reference to the service given a service name.

Parameters:

  | name | Service name
  | svc | Returned service pointer

Reimplemented from ISvcLocator.

Definition at line 260 of file Bootstrap.cpp.

    00262                                                              {
    00263   StatusCode sc = StatusCode::FAILURE;
    00264   if ( s_appmgrInstance.isValid() ) {
    00265     sc = s_svclocInstance->getService(typeName, svc, createIf );
    00266   } else {
    00267     svc = s_bootService.get();
    00268   }
    00269   return sc;
    00270 }

const std::list< IService * > & Gaudi::BootSvcLocator::getServices | ( |  | ) | const`[virtual]`

Get a reference to a service and create it if it does not exists.

Parameters:

  | name | Service name
  | svc | Returned service pointer
  | createIf | flag to control the creation Return the list of Services

Implements ISvcLocator.

Definition at line 273 of file Bootstrap.cpp.

    00273                                                                   {
    00274   StatusCode sc = StatusCode::FAILURE;
    00275   if ( s_appmgrInstance.isValid() ) {
    00276     return s_svclocInstance->getServices( );
    00277   } else {
    00278     return s_bootServices;
    00279   }
    00280 }

bool Gaudi::BootSvcLocator::existsService | ( | const std::string & | name | ) | const`[virtual]`

Check the existence of a service given a service name.

Implements ISvcLocator.

Definition at line 281 of file Bootstrap.cpp.

    00281                                                                      {
    00282   bool result = false;
    00283   if ( s_appmgrInstance.isValid() ) {
    00284     result = s_svclocInstance->existsService(name);
    00285   }
    00286   return result;
    00287 }

SmartIF< IService > & Gaudi::BootSvcLocator::service | ( | const Gaudi::Utils::TypeNameString & | typeName,
|  | const bool | createIf = `true` |
| ) |  |  | `[virtual]`

Returns a smart pointer to a service.

Implements ISvcLocator.

Definition at line 290 of file Bootstrap.cpp.

    00290                                                                                                              {
    00291   if ( s_appmgrInstance.isValid() ) {
    00292     return s_svclocInstance->service(typeName, createIf);
    00293   } else {
    00294     return s_bootService;
    00295   }
    00296 }

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r6/GaudiKernel/src/Lib/Bootstrap.cpp