EventLoopMgr Class Reference

Class definition of EventLoopMgr. More...

#include </builds/gaudi/Gaudi/GaudiCoreSvc/src/ApplicationMgr/EventLoopMgr.h>

Inheritance diagram for EventLoopMgr:

Collaboration diagram for EventLoopMgr:

Public Member Functions
	~EventLoopMgr () override
	Standard Destructor. More...
StatusCode	getEventRoot (IOpaqueAddress *&refpAddr)
	Create event address using event selector. More...
StatusCode	initialize () override
	implementation of IService::initialize More...
StatusCode	reinitialize () override
	implementation of IService::reinitialize More...
StatusCode	stop () override
	implementation of IService::stop More...
StatusCode	finalize () override
	implementation of IService::finalize More...
StatusCode	nextEvent (int maxevt) override
	implementation of IEventProcessor::nextEvent More...
StatusCode	executeEvent (EventContext &&ctx) override
	implementation of IEventProcessor::executeEvent(EventContext&&) More...
	MinimalEventLoopMgr (const std::string &nam, ISvcLocator *svcLoc)
	Standard Constructor. More...
	MinimalEventLoopMgr (const MinimalEventLoopMgr &)=delete
	No copy allowed. More...
Public Member Functions inherited from MinimalEventLoopMgr
	MinimalEventLoopMgr (const std::string &nam, ISvcLocator *svcLoc)
	Standard Constructor. More...
	MinimalEventLoopMgr (const MinimalEventLoopMgr &)=delete
	No copy allowed. More...
MinimalEventLoopMgr &	operator= (const MinimalEventLoopMgr &)=delete
	No copy allowed. More...
StatusCode	initialize () override
	implementation of IService::initialize More...
StatusCode	start () override
	implementation of IService::start More...
StatusCode	stop () override
	implementation of IService::stop More...
StatusCode	finalize () override
	implementation of IService::finalize More...
StatusCode	reinitialize () override
	implementation of IService::reinitialize More...
StatusCode	restart () override
	implementation of IService::restart More...
EventContext	createEventContext () override
	implementation of IEventProcessor::createEventContext() More...
StatusCode	nextEvent (int maxevt) override
	implementation of IEventProcessor::nextEvent More...
StatusCode	executeEvent (EventContext &&ctx) override
	implementation of IEventProcessor::executeEvent(EventContext&&) More...
StatusCode	executeRun (int maxevt) override
	implementation of IEventProcessor::executeRun( ) More...
StatusCode	stopRun () override
	implementation of IEventProcessor::stopRun( ) More...
void	topAlgHandler (Gaudi::Details::PropertyBase &p)
	Top algorithm List handler. More...
StatusCode	decodeTopAlgs ()
	decodeTopAlgNameList & topAlgNameListHandler More...
void	outStreamHandler (Gaudi::Details::PropertyBase &p)
	Output stream List handler. More...
StatusCode	decodeOutStreams ()
	decodeOutStreamNameList & outStreamNameListHandler More...
Public Member Functions inherited from extends< Service, IEventProcessor >
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...
StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...
std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...
Public Member Functions inherited from Service
const std::string &	name () const override
	Retrieve name of the service More...
StatusCode	configure () override
StatusCode	initialize () override
StatusCode	start () override
StatusCode	stop () override
StatusCode	finalize () override
StatusCode	terminate () override
Gaudi::StateMachine::State	FSMState () const override
Gaudi::StateMachine::State	targetFSMState () const override
StatusCode	reinitialize () override
StatusCode	restart () override
StatusCode	sysInitialize () override
	Initialize Service More...
StatusCode	sysStart () override
	Initialize Service More...
StatusCode	sysStop () override
	Initialize Service More...
StatusCode	sysFinalize () override
	Finalize Service More...
StatusCode	sysReinitialize () override
	Re-initialize the Service. More...
StatusCode	sysRestart () override
	Re-initialize the Service. More...
	Service (std::string name, ISvcLocator *svcloc)
	Standard Constructor More...
SmartIF< ISvcLocator > &	serviceLocator () const override
	Retrieve pointer to service locator More...
template<class T >
StatusCode	service (const std::string &name, const T *&psvc, bool createIf=true) const
	Access a service by name, creating it if it doesn't already exist. More...
template<class T >
StatusCode	service (const std::string &name, T *&psvc, bool createIf=true) const
template<typename IFace = IService>
SmartIF< IFace >	service (const std::string &name, bool createIf=true) const
template<class T >
StatusCode	service (const std::string &svcType, const std::string &svcName, T *&psvc) const
	Access a service by name and type, creating it if it doesn't already exist. More...
template<class T >
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, ToolHandle< T > &hndl, const std::string &doc="none")
template<class T >
StatusCode	declareTool (ToolHandle< T > &handle, bool createIf=true)
template<class T >
StatusCode	declareTool (ToolHandle< T > &handle, const std::string &toolTypeAndName, bool createIf=true)
	Declare used tool. More...
template<class T >
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, ToolHandleArray< T > &hndlArr, const std::string &doc="none")
template<class T >
void	addToolsArray (ToolHandleArray< T > &hndlArr)
const std::vector< IAlgTool * > &	tools () const
SmartIF< IAuditorSvc > &	auditorSvc () const
	The standard auditor service.May not be invoked before sysInitialize() has been invoked. More...
Public Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	PropertyHolder ()=default
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Details::PropertyBase &prop)
	Declare a property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, TYPE &value, const std::string &doc="none")
	Helper to wrap a regular data member and use it as a regular property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, Gaudi::Property< TYPE, VERIFIER, HANDLERS > &prop, const std::string &doc="none")
	Declare a PropertyBase instance setting name and documentation. More...
Gaudi::Details::PropertyBase *	declareRemoteProperty (const std::string &name, IProperty *rsvc, const std::string &rname="")
	Declare a remote property. More...
StatusCode	setProperty (const std::string &name, const Gaudi::Details::PropertyBase &p) override
	set the property from another property with a different name More...
StatusCode	setProperty (const std::string &s) override
	set the property from the formatted string More...
StatusCode	setProperty (const Gaudi::Details::PropertyBase &p)
	Set the property from a property. More...
virtual StatusCode	setProperty (const std::string &name, const Gaudi::Details::PropertyBase &p)=0
	Set the property from a property with a different name. More...
virtual StatusCode	setProperty (const std::string &s)=0
	Set the property by string. More...
StatusCode	setProperty (const std::string &name, const char *v)
	Special case for string literals. More...
StatusCode	setProperty (const std::string &name, const std::string &v)
	Special case for std::string. More...
StatusCode	setProperty (const std::string &name, const TYPE &value)
	set the property form the value More...
StatusCode	setPropertyRepr (const std::string &n, const std::string &r) override
	set the property from name and value string representation More...
StatusCode	getProperty (Gaudi::Details::PropertyBase *p) const override
	get the property More...
const Gaudi::Details::PropertyBase &	getProperty (std::string_view name) const override
	get the property by name More...
StatusCode	getProperty (std::string_view n, std::string &v) const override
	convert the property to the string More...
const std::vector< Gaudi::Details::PropertyBase * > &	getProperties () const override
	get all properties More...
bool	hasProperty (std::string_view name) const override
	Return true if we have a property with the given name. More...
Gaudi::Details::PropertyBase *	property (std::string_view name) const
	\fixme property and bindPropertiesTo should be protected More...
void	bindPropertiesTo (Gaudi::Interfaces::IOptionsSvc &optsSvc)
	PropertyHolder (const PropertyHolder &)=delete
PropertyHolder &	operator= (const PropertyHolder &)=delete
Public Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	msgLevel () const
	get the cached level (originally extracted from the embedded MsgStream) More...
bool	msgLevel (MSG::Level lvl) const
	get the output level from the embedded MsgStream More...

Protected Attributes
Gaudi::Property< std::string >	m_histPersName { this, "HistogramPersistency", {}, "name of the Hist Pers type" }
Gaudi::Property< std::string >	m_evtsel { this, "EvtSel", {}, "event selector" }
Gaudi::Property< bool >	m_warnings { this, "Warnings", true, "set to false to suppress warning messages" }
SmartIF< IDataManagerSvc >	m_evtDataMgrSvc = nullptr
	Reference to the Event Data Service's IDataManagerSvc interface. More...
SmartIF< IDataProviderSvc >	m_evtDataSvc = nullptr
	Reference to the Event Data Service's IDataProviderSvc interface. More...
SmartIF< IEvtSelector >	m_evtSelector = nullptr
	Reference to the Event Selector. More...
IEvtSelector::Context *	m_evtContext = nullptr
	Event Iterator. More...
SmartIF< IDataManagerSvc >	m_histoDataMgrSvc = nullptr
	Reference to the Histogram Data Service. More...
SmartIF< IConversionSvc >	m_histoPersSvc = nullptr
	Reference to the Histogram Persistency Service. More...
SmartIF< IProperty >	m_appMgrProperty = nullptr
	Property interface of ApplicationMgr. More...
bool	m_endEventFired = true
	Flag to avoid to fire the EnvEvent incident twice in a row (and also not before the first event) More...
Protected Attributes inherited from MinimalEventLoopMgr
Gaudi::Property< std::vector< std::string > >	m_topAlgNames
Gaudi::Property< std::vector< std::string > >	m_outStreamNames
Gaudi::Property< bool >	m_printCFExp
SmartIF< IAppMgrUI >	m_appMgrUI
	Reference to the IAppMgrUI interface of the application manager. More...
SmartIF< IIncidentSvc >	m_incidentSvc
	Reference to the incident service. More...
SmartIF< IAlgExecStateSvc >	m_aess
	List of top level algorithms. More...
ListAlg	m_topAlgList
ListAlg	m_outStreamList
	List of output streams. More...
State	m_state = OFFLINE
	State of the object. More...
bool	m_scheduledStop = false
	Scheduled stop of event processing. More...
AbortEventListener	m_abortEventListener
	Instance of the incident listener waiting for AbortEvent. More...
SmartIF< IHiveWhiteBoard >	m_WB
	< Event data service (whiteboard) More...
size_t	m_nevt { 0 }
Protected Attributes inherited from Service
Gaudi::StateMachine::State	m_state = Gaudi::StateMachine::OFFLINE
	Service state More...
Gaudi::StateMachine::State	m_targetState = Gaudi::StateMachine::OFFLINE
	Service state More...
Gaudi::Property< int >	m_outputLevel { this, "OutputLevel", MSG::NIL, "output level" }
	flag indicating whether ToolHandle tools have been added to m_tools More...
Gaudi::Property< bool >	m_auditInit { this, "AuditServices", false, "[[deprecated]] unused" }
Gaudi::Property< bool >	m_auditorInitialize { this, "AuditInitialize", false, "trigger auditor on initialize()" }
Gaudi::Property< bool >	m_auditorStart { this, "AuditStart", false, "trigger auditor on start()" }
Gaudi::Property< bool >	m_auditorStop { this, "AuditStop", false, "trigger auditor on stop()" }
Gaudi::Property< bool >	m_auditorFinalize { this, "AuditFinalize", false, "trigger auditor on finalize()" }
Gaudi::Property< bool >	m_auditorReinitialize { this, "AuditReinitialize", false, "trigger auditor on reinitialize()" }
Gaudi::Property< bool >	m_auditorRestart { this, "AuditRestart", false, "trigger auditor on restart()" }
Gaudi::Property< bool >	m_autoRetrieveTools
Gaudi::Property< bool >	m_checkToolDeps
SmartIF< IAuditorSvc >	m_pAuditorSvc
	Auditor Service More...

Additional Inherited Members
Public Types inherited from MinimalEventLoopMgr
typedef std::vector< SmartIF< IAlgorithm > >	ListAlg
Public Types inherited from extends< Service, IEventProcessor >
using	base_class = extends
	Typedef to this class. More...
using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...
Public Types inherited from Service
using	Factory = Gaudi::PluginService::Factory< IService *(const std::string &, ISvcLocator *)>
Public Types inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
using	PropertyHolderImpl = PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	Typedef used to refer to this class from derived classes, as in. More...
Public Types inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
using	base_class = CommonMessaging
Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...
Protected Types inherited from MinimalEventLoopMgr
enum	State { OFFLINE, CONFIGURED, FINALIZED, INITIALIZED }
Protected Member Functions inherited from Service
std::vector< IAlgTool * > &	tools ()
	~Service () override
	Standard Destructor More...
int	outputLevel () const
	get the Service's output level More...
Protected Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	setUpMessaging () const
	Set up local caches. More...
MSG::Level	resetMessaging ()
	Reinitialize internal states. More...
void	updateMsgStreamOutputLevel (int level)
	Update the output level of the cached MsgStream. More...

Detailed Description

Class definition of EventLoopMgr.

This is the default processing manager of the application manager. This object handles the minimal requirements needed by the application manager. It also handles the default user configuration setup for standard event processing.

• handling of the incidents when starting event processing
• handling of the event loop

History:

 +---------+----------------------------------------------+---------+
 |    Date |                 Comment                      | Who     |
 +---------+----------------------------------------------+---------+
 |13/12/00 | Initial version                              | M.Frank |
 +---------+----------------------------------------------+---------+
 

Author

Markus Frank

Version

1.0

Definition at line 44 of file EventLoopMgr.h.

Constructor & Destructor Documentation

~EventLoopMgr()

EventLoopMgr::~EventLoopMgr ( )

override

Standard Destructor.

Definition at line 31 of file EventLoopMgr.cpp.

{ delete m_evtContext; }

Member Function Documentation

executeEvent()

StatusCode EventLoopMgr::executeEvent ( EventContext &&  ctx )

override

implementation of IEventProcessor::executeEvent(EventContext&&)

Definition at line 245 of file EventLoopMgr.cpp.

                                                          {
 
  // DP Monitoring
 
  // Fire BeginEvent "Incident"
  m_incidentSvc->fireIncident( Incident( name(), IncidentType::BeginEvent ) );
  // An incident may schedule a stop, in which case is better to exit before the actual execution.
  if ( m_scheduledStop ) {
    always() << "Terminating event processing loop due to a stop scheduled by an incident listener" << endmsg;
    return StatusCode::SUCCESS;
  }
 
  // Execute Algorithms
  m_incidentSvc->fireIncident( Incident( name(), IncidentType::BeginProcessing ) );
  StatusCode sc = MinimalEventLoopMgr::executeEvent( std::move( ctx ) );
  m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndProcessing ) );
 
  // Check if there was an error processing current event
  if ( !sc.isSuccess() ) { error() << "Terminating event processing loop due to errors" << endmsg; }
  return sc;
}

finalize()

StatusCode EventLoopMgr::finalize ( )

override

implementation of IService::finalize

Definition at line 184 of file EventLoopMgr.cpp.

                                  {
  // Finalize base class
  StatusCode sc = MinimalEventLoopMgr::finalize();
  if ( !sc.isSuccess() ) {
    error() << "Error finalizing base class" << endmsg;
    return sc;
  }
 
  // Save Histograms Now
  if ( m_histoPersSvc ) {
    std::vector<DataObject*> objects;
    sc = m_histoDataMgrSvc->traverseTree( [&objects]( IRegistry* reg, int ) {
      DataObject* obj = reg->object();
      if ( !obj || obj->clID() == CLID_StatisticsFile ) return false;
      objects.push_back( obj );
      return true;
    } );
    if ( sc.isSuccess() ) {
      // skip /stat entry!
      sc = std::accumulate( begin( objects ), end( objects ), sc, [&]( StatusCode isc, auto& i ) {
        IOpaqueAddress* pAddr = nullptr;
        StatusCode      iret  = m_histoPersSvc->createRep( i, pAddr );
        if ( iret.isFailure() ) return iret;
        i->registry()->setAddress( pAddr );
        return isc;
      } );
      sc = std::accumulate( begin( objects ), end( objects ), sc, [&]( StatusCode isc, auto& i ) {
        IRegistry* reg  = i->registry();
        StatusCode iret = m_histoPersSvc->fillRepRefs( reg->address(), i );
        return iret.isFailure() ? iret : isc;
      } );
      if ( sc.isSuccess() ) {
        info() << "Histograms converted successfully according to request." << endmsg;
      } else {
        error() << "Error while saving Histograms." << endmsg;
      }
    } else {
      error() << "Error while traversing Histogram data store" << endmsg;
    }
  }
 
  // Release event selector context
  if ( m_evtSelector && m_evtContext ) {
    m_evtSelector->releaseContext( m_evtContext ).ignore();
    m_evtContext = nullptr;
  }
 
  // Release all interfaces...
  m_histoDataMgrSvc = nullptr;
  m_histoPersSvc    = nullptr;
 
  m_evtSelector   = nullptr;
  m_evtDataSvc    = nullptr;
  m_evtDataMgrSvc = nullptr;
 
  return StatusCode::SUCCESS;
}

getEventRoot()

StatusCode EventLoopMgr::getEventRoot

(

IOpaqueAddress *&

refpAddr

)

Create event address using event selector.

Definition at line 361 of file EventLoopMgr.cpp.

                                                                 {
  refpAddr      = nullptr;
  StatusCode sc = m_evtSelector->next( *m_evtContext );
  if ( !sc.isSuccess() ) return sc;
  // Create root address and assign address to data service
  sc = m_evtSelector->createAddress( *m_evtContext, refpAddr );
  if ( !sc.isSuccess() ) {
    sc = m_evtSelector->next( *m_evtContext );
    if ( sc.isSuccess() ) {
      sc = m_evtSelector->createAddress( *m_evtContext, refpAddr );
      if ( !sc.isSuccess() ) warning() << "Error creating IOpaqueAddress." << endmsg;
    }
  }
  return sc;
}

initialize()

StatusCode EventLoopMgr::initialize ( )

override

implementation of IService::initialize

Definition at line 36 of file EventLoopMgr.cpp.

                                    {
  // Initialize the base class
  StatusCode sc = MinimalEventLoopMgr::initialize();
  if ( !sc.isSuccess() ) {
    DEBMSG << "Error Initializing base class MinimalEventLoopMgr." << endmsg;
    return sc;
  }
 
  // Setup access to event data services
  m_evtDataMgrSvc = serviceLocator()->service( "EventDataSvc" );
  if ( !m_evtDataMgrSvc ) {
    fatal() << "Error retrieving EventDataSvc interface IDataManagerSvc." << endmsg;
    return StatusCode::FAILURE;
  }
  m_evtDataSvc = serviceLocator()->service( "EventDataSvc" );
  if ( !m_evtDataSvc ) {
    fatal() << "Error retrieving EventDataSvc interface IDataProviderSvc." << endmsg;
    return StatusCode::FAILURE;
  }
 
  // Obtain the IProperty of the ApplicationMgr
  m_appMgrProperty = serviceLocator();
  if ( !m_appMgrProperty ) {
    fatal() << "IProperty interface not found in ApplicationMgr." << endmsg;
    return StatusCode::FAILURE;
  }
 
  // We do not expect a Event Selector necessarily being declared
  setProperty( m_appMgrProperty->getProperty( "EvtSel" ) ).ignore();
 
  if ( m_evtsel != "NONE" || m_evtsel.empty() ) {
    m_evtSelector = serviceLocator()->service( "EventSelector" );
    if ( m_evtSelector ) {
      // Setup Event Selector
      sc = m_evtSelector->createContext( m_evtContext );
      if ( !sc.isSuccess() ) {
        fatal() << "Can not create the event selector Context." << endmsg;
        return sc;
      }
    } else {
      fatal() << "EventSelector not found." << endmsg;
      return sc;
    }
  } else {
    m_evtSelector = nullptr;
    m_evtContext  = nullptr;
    if ( m_warnings ) {
      warning() << "Unable to locate service \"EventSelector\" " << endmsg;
      warning() << "No events will be processed from external input." << endmsg;
    }
  }
 
  setProperty( m_appMgrProperty->getProperty( "HistogramPersistency" ) ).ignore();
  if ( m_histPersName != "NONE" && !m_histPersName.empty() ) {
    // Setup access to histogramming services
    m_histoDataMgrSvc = serviceLocator()->service( "HistogramDataSvc" );
    if ( !m_histoDataMgrSvc ) {
      fatal() << "Error retrieving HistogramDataSvc." << endmsg;
      return StatusCode::FAILURE;
    }
    // Setup histogram persistency
    m_histoPersSvc = serviceLocator()->service( "HistogramPersistencySvc" );
    if ( !m_histoPersSvc ) { warning() << "Histograms cannot not be saved - though required." << endmsg; }
  }
 
  return StatusCode::SUCCESS;
}

MinimalEventLoopMgr() [1/2]

MinimalEventLoopMgr::MinimalEventLoopMgr

delete

No copy allowed.

MinimalEventLoopMgr() [2/2]

MinimalEventLoopMgr::MinimalEventLoopMgr

Standard Constructor.

Definition at line 86 of file MinimalEventLoopMgr.cpp.

    : base_class( nam, svcLoc ), m_appMgrUI( svcLoc ) {}

nextEvent()

StatusCode EventLoopMgr::nextEvent ( int  maxevt )

override

implementation of IEventProcessor::nextEvent

Definition at line 272 of file EventLoopMgr.cpp.

                                               {
 
  // DP Monitoring
  // Calculate runtime
  typedef std::chrono::high_resolution_clock Clock;
  typedef Clock::time_point                  time_point;
 
  const float oneOver1024 = 1.f / 1024.f;
 
  DataObject* pObject = nullptr;
  StatusCode  sc      = StatusCode::SUCCESS;
 
  // loop over events if the maxevt (received as input) if different from -1.
  // if evtmax is -1 it means infinite loop
  time_point start_time = Clock::now();
  for ( int nevt = 0; maxevt == -1 || nevt < maxevt; ++nevt ) {
 
    if ( 1 == nevt ) // reset after first evt
      start_time = Clock::now();
 
    auto ctx = createEventContext();
 
    // always() << "Event Number = " << total_nevt
    //         << " WSS (MB) = " << System::mappedMemory(System::MemoryUnit::kByte)*oneOver1024
    //         << " Time (s) = " << secsFromStart(start_time) << endmsg;
 
    // Check if there is a scheduled stop issued by some algorithm/service
    if ( m_scheduledStop ) {
      m_scheduledStop = false;
      always() << "Terminating event processing loop due to scheduled stop" << endmsg;
      break;
    }
    // Clear the event store, if used in the event loop
    if ( 0 != ctx.evt() ) {
 
      if ( !m_endEventFired ) {
        // Fire EndEvent "Incident" (it is considered part of the clearing of the TS)
        m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndEvent ) );
        m_endEventFired = true;
      }
      sc = m_evtDataMgrSvc->clearStore();
      if ( !sc.isSuccess() ) { DEBMSG << "Clear of Event data store failed" << endmsg; }
    }
 
    // Setup event in the event store
    if ( m_evtContext ) {
      IOpaqueAddress* addr = nullptr;
      // Only if there is a EventSelector
      sc = getEventRoot( addr );
      if ( !sc.isSuccess() ) {
        info() << "No more events in event selection " << endmsg;
        break;
      }
      // Set root clears the event data store first
      sc = m_evtDataMgrSvc->setRoot( "/Event", addr );
      if ( !sc.isSuccess() ) {
        warning() << "Error declaring event root address." << endmsg;
        continue;
      }
      sc = m_evtDataSvc->retrieveObject( "/Event", pObject );
      if ( !sc.isSuccess() ) {
        warning() << "Unable to retrieve Event root object" << endmsg;
        break;
      }
    } else {
      sc = m_evtDataMgrSvc->setRoot( "/Event", new DataObject() );
      if ( !sc.isSuccess() ) { warning() << "Error declaring event root DataObject" << endmsg; }
    }
    // Execute event for all required algorithms
    sc              = executeEvent( std::move( ctx ) );
    m_endEventFired = false;
    if ( !sc.isSuccess() ) {
      error() << "Terminating event processing loop due to errors" << endmsg;
      Gaudi::setAppReturnCode( m_appMgrProperty, Gaudi::ReturnCode::AlgorithmFailure ).ignore();
      return sc;
    }
  }
 
  if ( outputLevel() <= MSG::DEBUG )
    debug() << "---> Loop Finished - "
            << " WSS " << System::mappedMemory( System::MemoryUnit::kByte ) * oneOver1024
            << " | total time (skipping 1st evt) "
            << std::chrono::duration_cast<std::chrono::nanoseconds>( Clock::now() - start_time ).count() << " ns"
            << endmsg;
 
  return StatusCode::SUCCESS;
}

reinitialize()

StatusCode EventLoopMgr::reinitialize ( )

override

implementation of IService::reinitialize

Definition at line 106 of file EventLoopMgr.cpp.

                                      {
 
  // Initialize the base class
  StatusCode sc = MinimalEventLoopMgr::reinitialize();
  if ( !sc.isSuccess() ) {
    DEBMSG << "Error Initializing base class MinimalEventLoopMgr." << endmsg;
    return sc;
  }
 
  // Check to see whether a new Event Selector has been specified
  if ( sc = setProperty( m_appMgrProperty->getProperty( "EvtSel" ) ); !sc ) return sc;
  if ( m_evtsel != "NONE" || m_evtsel.length() == 0 ) {
    auto theSvc    = serviceLocator()->service<IService>( "EventSelector" );
    auto theEvtSel = theSvc.as<IEvtSelector>();
    if ( theEvtSel && ( theEvtSel.get() != m_evtSelector.get() ) ) {
      // Setup Event Selector
      if ( m_evtSelector.get() && m_evtContext ) {
        // Need to release context before switching to new event selector
        if ( sc = m_evtSelector->releaseContext( m_evtContext ); !sc ) return sc;
        m_evtContext = nullptr;
      }
      m_evtSelector = theEvtSel;
      if ( theSvc->FSMState() == Gaudi::StateMachine::INITIALIZED ) {
        sc = theSvc->reinitialize();
        if ( !sc.isSuccess() ) {
          error() << "Failure Reinitializing EventSelector " << theSvc->name() << endmsg;
          return sc;
        }
      } else {
        sc = theSvc->sysInitialize();
        if ( !sc.isSuccess() ) {
          error() << "Failure Initializing EventSelector " << theSvc->name() << endmsg;
          return sc;
        }
      }
      sc = m_evtSelector->createContext( m_evtContext );
      if ( !sc.isSuccess() ) {
        error() << "Can not create Context " << theSvc->name() << endmsg;
        return sc;
      }
      info() << "EventSelector service changed to " << theSvc->name() << endmsg;
    } else if ( m_evtSelector ) {
      if ( m_evtContext ) {
        if ( sc = m_evtSelector->releaseContext( m_evtContext ); !sc ) return sc;
        m_evtContext = nullptr;
      }
      sc = m_evtSelector->createContext( m_evtContext );
      if ( !sc.isSuccess() ) {
        error() << "Can not create Context " << theSvc->name() << endmsg;
        return sc;
      }
    }
  } else if ( m_evtSelector && m_evtContext ) {
    sc            = m_evtSelector->releaseContext( m_evtContext );
    m_evtSelector = nullptr;
    m_evtContext  = nullptr;
  }
  return sc;
}

stop()

StatusCode EventLoopMgr::stop ( )

override

implementation of IService::stop

Definition at line 169 of file EventLoopMgr.cpp.

                              {
  if ( !m_endEventFired ) {
    // Fire pending EndEvent incident
    m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndEvent ) );
    m_endEventFired = true;
  }
  return m_evtDataMgrSvc
      ->clearStore()                                               //
      .andThen( [this]() { return MinimalEventLoopMgr::stop(); } ) //
      .orElse( [this]() { DEBMSG << "Clear of Event data store failed" << endmsg; } );
}

Member Data Documentation

m_appMgrProperty

SmartIF<IProperty> EventLoopMgr::m_appMgrProperty = nullptr

protected

Property interface of ApplicationMgr.

Definition at line 66 of file EventLoopMgr.h.

m_endEventFired

bool EventLoopMgr::m_endEventFired = true

protected

Flag to avoid to fire the EnvEvent incident twice in a row (and also not before the first event)

Definition at line 69 of file EventLoopMgr.h.

m_evtContext

IEvtSelector::Context* EventLoopMgr::m_evtContext = nullptr

protected

Event Iterator.

Definition at line 60 of file EventLoopMgr.h.

m_evtDataMgrSvc

SmartIF<IDataManagerSvc> EventLoopMgr::m_evtDataMgrSvc = nullptr

protected

Reference to the Event Data Service's IDataManagerSvc interface.

Definition at line 54 of file EventLoopMgr.h.

m_evtDataSvc

SmartIF<IDataProviderSvc> EventLoopMgr::m_evtDataSvc = nullptr

protected

Reference to the Event Data Service's IDataProviderSvc interface.

Definition at line 56 of file EventLoopMgr.h.

m_evtsel

Gaudi::Property<std::string> EventLoopMgr::m_evtsel { this, "EvtSel", {}, "event selector" }

protected

Definition at line 50 of file EventLoopMgr.h.

m_evtSelector

SmartIF<IEvtSelector> EventLoopMgr::m_evtSelector = nullptr

protected

Reference to the Event Selector.

Definition at line 58 of file EventLoopMgr.h.

m_histoDataMgrSvc

SmartIF<IDataManagerSvc> EventLoopMgr::m_histoDataMgrSvc = nullptr

protected

Reference to the Histogram Data Service.

Definition at line 62 of file EventLoopMgr.h.

m_histoPersSvc

SmartIF<IConversionSvc> EventLoopMgr::m_histoPersSvc = nullptr

protected

Reference to the Histogram Persistency Service.

Definition at line 64 of file EventLoopMgr.h.

m_histPersName

Gaudi::Property<std::string> EventLoopMgr::m_histPersName { this, "HistogramPersistency", {}, "name of the Hist Pers type" }

protected

Definition at line 49 of file EventLoopMgr.h.

m_warnings

Gaudi::Property<bool> EventLoopMgr::m_warnings { this, "Warnings", true, "set to false to suppress warning messages" }

protected

Definition at line 51 of file EventLoopMgr.h.

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

• GaudiCoreSvc/src/ApplicationMgr/EventLoopMgr.h
• GaudiCoreSvc/src/ApplicationMgr/EventLoopMgr.cpp