| # Gaudi Framework, version v25r0 |

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Public Member Functions | List of all members
Gaudi::BootSvcLocator Class Reference

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

Inheritance diagram for Gaudi::BootSvcLocator:
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Collaboration diagram for Gaudi::BootSvcLocator:
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## 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.

## Additional Inherited Members
Public Types inherited from implements1< ISvcLocator >
typedef implements1 | base_class
| Typedef to this class.
typedef extend_interfaces1 < ISvcLocator > | extend_interfaces_base
| Typedef to the base of this class.
typedef extend_interfaces_base::ext_iids | interfaces
| MPL set of all the implemented interfaces.
Static Public Member Functions inherited from IInterface
static const InterfaceID & | interfaceID ()
| Return an instance of InterfaceID identifying the interface.

## 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 motivation 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 35 of file Bootstrap.cpp.

## Constructor & Destructor Documentation

BootSvcLocator::BootSvcLocator | ( |  | ) |

Definition at line 235 of file Bootstrap.cpp.

{
}

BootSvcLocator::~BootSvcLocator | ( |  | ) |
| virtual

Definition at line 237 of file Bootstrap.cpp.

{
}

## Member Function Documentation

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 273 of file Bootstrap.cpp.

{
bool result = false;
if ( s_appmgrInstance.isValid() ) {
result = s_svclocInstance->existsService(name);
}
return result;
}

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 241 of file Bootstrap.cpp.

{
StatusCode sc = StatusCode::FAILURE;
if ( s_appmgrInstance.isValid() ) {
sc = s_svclocInstance->getService(typeName, iid, pinterface );
} else {
pinterface = s_bootInterface.get();
}
return sc;
}

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 252 of file Bootstrap.cpp.

{
StatusCode sc = StatusCode::FAILURE;
if ( s_appmgrInstance.isValid() ) {
sc = s_svclocInstance->getService(typeName, svc, createIf );
} else {
svc = s_bootService.get();
}
return sc;
}

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 creationReturn the list of Services

Implements ISvcLocator.

Definition at line 265 of file Bootstrap.cpp.

{
StatusCode sc = StatusCode::FAILURE;
if ( s_appmgrInstance.isValid() ) {
return s_svclocInstance->getServices( );
} else {
return s_bootServices;
}
}

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 282 of file Bootstrap.cpp.

{
if ( s_appmgrInstance.isValid() ) {
return s_svclocInstance->service(typeName, createIf);
} else {
return s_bootService;
}
}

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v25r0/GaudiKernel/src/Lib/Bootstrap.cpp