HiveSlimEventLoopMgr Class Reference

#include <GaudiHive/HiveSlimEventLoopMgr.h>

Inheritance diagram for HiveSlimEventLoopMgr:

Collaboration diagram for HiveSlimEventLoopMgr:

Public Member Functions
	HiveSlimEventLoopMgr (const std::string &nam, ISvcLocator *svcLoc)
	Standard Constructor. More...
	~HiveSlimEventLoopMgr () 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 IService::nextEvent More...
StatusCode	executeEvent (void *par) override
	implementation of IEventProcessor::executeEvent(void* par) More...
StatusCode	executeRun (int maxevt) override
	implementation of IEventProcessor::executeRun() More...
StatusCode	stopRun () override
	implementation of IEventProcessor::stopRun() 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...
StatusCode	setProperties ()
	Method for setting declared properties to the values specified for the job. 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 >
StatusCode	declareTool (ToolHandle< T > &handle, std::string toolTypeAndName, bool createIf=true)
	Declare used tool. More...
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 Gaudi::Details::PropertyBase &p) override
	set the property form another property More...
StatusCode	setProperty (const std::string &s) override
	set the property from the formatted string More...
StatusCode	setProperty (const std::string &n, const std::string &v) override
	set the property from name and the value More...
StatusCode	setProperty (const std::string &name, const TYPE &value)
	set the property form the value More...
StatusCode	getProperty (Gaudi::Details::PropertyBase *p) const override
	get the property More...
const Gaudi::Details::PropertyBase &	getProperty (const std::string &name) const override
	get the property by name More...
StatusCode	getProperty (const std::string &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 (const std::string &name) const override
	Return true if we have a property with the given name. More...
	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...
MSG::Level	outputLevel () const
	Backward compatibility function for getting the output level. More...
Public Member Functions inherited from CommonMessagingBase
virtual	~CommonMessagingBase ()=default
	Virtual destructor. More...
const SmartIF< IMessageSvc > &	msgSvc () const
	The standard message service. More...
MsgStream &	msgStream () const
	Return an uninitialized MsgStream. More...
MsgStream &	msgStream (const MSG::Level level) const
	Predefined configurable message stream for the efficient printouts. More...
MsgStream &	always () const
	shortcut for the method msgStream(MSG::ALWAYS) More...
MsgStream &	fatal () const
	shortcut for the method msgStream(MSG::FATAL) More...
MsgStream &	err () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	error () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	warning () const
	shortcut for the method msgStream(MSG::WARNING) More...
MsgStream &	info () const
	shortcut for the method msgStream(MSG::INFO) More...
MsgStream &	debug () const
	shortcut for the method msgStream(MSG::DEBUG) More...
MsgStream &	verbose () const
	shortcut for the method msgStream(MSG::VERBOSE) More...
MsgStream &	msg () const
	shortcut for the method msgStream(MSG::INFO) More...

Protected Member Functions
StatusCode	clearWBSlot (int evtSlot)
	Clear a slot in the WB. More...
StatusCode	declareEventRootAddress ()
	Declare the root address of the event. More...
StatusCode	createEventContext (EventContext *&eventContext, int createdEvents)
	Create event context. More...
StatusCode	drainScheduler (int &finishedEvents)
	Drain the scheduler from all actions that may be queued. More...
Protected Member Functions inherited from Service
	~Service () override
	Standard Destructor. More...
int	outputLevel () const
	get the Service's output level More...
Protected Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
Gaudi::Details::PropertyBase *	property (const std::string &name) const
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...

Protected Attributes
Gaudi::Property< std::string >	m_histPersName {this, "HistogramPersistency", "", ""}
Gaudi::Property< std::string >	m_evtsel {this, "EvtSel", "", ""}
Gaudi::Property< bool >	m_warnings {this, "Warnings", true, "Set this property to false to suppress warning messages"}
Gaudi::Property< std::string >	m_schedulerName
Gaudi::Property< std::vector< unsigned int > >	m_eventNumberBlacklist {this, "EventNumberBlackList", {}, ""}
SmartIF< IDataManagerSvc >	m_evtDataMgrSvc
	Reference to the Event Data Service's IDataManagerSvc interface. More...
SmartIF< IEvtSelector >	m_evtSelector
	Reference to the Event Selector. More...
IEvtSelector::Context *	m_evtContext = nullptr
	Event Iterator. More...
SmartIF< IDataManagerSvc >	m_histoDataMgrSvc
	Reference to the Histogram Data Service. More...
SmartIF< IConversionSvc >	m_histoPersSvc
	Reference to the Histogram Persistency Service. More...
SmartIF< IHiveWhiteBoard >	m_whiteboard
	Reference to the Whiteboard. More...
SmartIF< IAlgResourcePool >	m_algResourcePool
	Reference to the Algorithm resource pool. More...
SmartIF< IAlgExecStateSvc >	m_algExecStateSvc
	Reference to the AlgExecStateSvc. More...
SmartIF< IProperty >	m_appMgrProperty
	Property interface of ApplicationMgr. More...
bool	m_endEventFired = false
	Flag to avoid to fire the EnvEvent incident twice in a row (and also not before the first event) More...
SmartIF< IScheduler >	m_schedulerSvc
	A shortcut for the scheduler. More...
SmartIF< IIncidentListener >	m_abortEventListener
	Instance of the incident listener waiting for AbortEvent. More...
bool	m_scheduledStop = false
	Scheduled stop of event processing. More...
SmartIF< IAppMgrUI >	m_appMgrUI
	Reference to the IAppMgrUI interface of the application manager. More...
SmartIF< IIncidentSvc >	m_incidentSvc
	Reference to the incident service. More...
boost::dynamic_bitset *	m_blackListBS = nullptr
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"}
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()"}
SmartIF< IAuditorSvc >	m_pAuditorSvc
	Auditor Service. More...

Additional Inherited Members
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
typedef Gaudi::PluginService::Factory< IService *, const std::string &, ISvcLocator * >	Factory
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...

Detailed Description

Definition at line 26 of file HiveSlimEventLoopMgr.h.

Constructor & Destructor Documentation

HiveSlimEventLoopMgr::HiveSlimEventLoopMgr	(	const std::string &	nam,
		ISvcLocator *	svcLoc
	)

Standard Constructor.

Definition at line 43 of file HiveSlimEventLoopMgr.cpp.

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

HiveSlimEventLoopMgr::~HiveSlimEventLoopMgr ( )

override

Standard Destructor.

Definition at line 51 of file HiveSlimEventLoopMgr.cpp.

{
  m_histoDataMgrSvc.reset();
  m_histoPersSvc.reset();
  m_evtDataMgrSvc.reset();
  m_whiteboard.reset();
  m_evtSelector.reset();
  delete m_evtContext;
}

Member Function Documentation

StatusCode HiveSlimEventLoopMgr::clearWBSlot ( int  evtSlot )

protected

Clear a slot in the WB.

Definition at line 621 of file HiveSlimEventLoopMgr.cpp.

{
  StatusCode sc = m_whiteboard->clearStore( evtSlot );
  if ( !sc.isSuccess() ) warning() << "Clear of Event data store failed" << endmsg;
  return m_whiteboard->freeStore( evtSlot );
}

StatusCode HiveSlimEventLoopMgr::createEventContext ( EventContext *&  eventContext, int  createdEvents  )

protected

Create event context.

Definition at line 541 of file HiveSlimEventLoopMgr.cpp.

{
  evtContext = new EventContext;
  evtContext->set( createdEvts, m_whiteboard->allocateStore( createdEvts ) );
  m_algExecStateSvc->reset( *evtContext );

  StatusCode sc = m_whiteboard->selectStore( evtContext->slot() );
  if ( sc.isFailure() ) {
    warning() << "Slot " << evtContext->slot() << " could not be selected for the WhiteBoard" << endmsg;
  }
  return sc;
}

StatusCode HiveSlimEventLoopMgr::declareEventRootAddress ( )

protected

Declare the root address of the event.

Definition at line 514 of file HiveSlimEventLoopMgr.cpp.

{
  StatusCode sc;
  if ( m_evtContext ) {
    //---This is the "event iterator" context from EventSelector
    IOpaqueAddress* pAddr = nullptr;
    sc                    = getEventRoot( pAddr );
    if ( !sc.isSuccess() ) {
      info() << "No more events in event selection " << endmsg;
      return StatusCode::FAILURE;
    }
    sc = m_evtDataMgrSvc->setRoot( "/Event", pAddr );
    if ( !sc.isSuccess() ) {
      warning() << "Error declaring event root address." << endmsg;
    }
  } else {
    //---In case of no event selector----------------
    sc = m_evtDataMgrSvc->setRoot( "/Event", new DataObject() );
    if ( !sc.isSuccess() ) {
      warning() << "Error declaring event root DataObject" << endmsg;
    }
  }
  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::drainScheduler ( int &  finishedEvents )

protected

Drain the scheduler from all actions that may be queued.

Definition at line 556 of file HiveSlimEventLoopMgr.cpp.

{

  StatusCode sc( StatusCode::SUCCESS );

  // maybe we can do better
  std::vector<EventContext*> finishedEvtContexts;

  EventContext* finishedEvtContext( nullptr );

  // Here we wait not to loose cpu resources
  debug() << "Waiting for a context" << endmsg;
  sc = m_schedulerSvc->popFinishedEvent( finishedEvtContext );

  // We got past it: cache the pointer
  if ( sc.isSuccess() ) {
    debug() << "Context obtained" << endmsg;
  } else {
    // A problem occurred.
    debug() << "Context not obtained: a problem in the scheduling?" << endmsg;
    //     return StatusCode::FAILURE;
  }

  finishedEvtContexts.push_back( finishedEvtContext );

  // Let's see if we can pop other event contexts
  while ( m_schedulerSvc->tryPopFinishedEvent( finishedEvtContext ).isSuccess() ) {
    finishedEvtContexts.push_back( finishedEvtContext );
  }

  // Now we flush them
  StatusCode finalSC;
  for ( auto& thisFinishedEvtContext : finishedEvtContexts ) {
    if ( !thisFinishedEvtContext ) {
      error() << "Detected nullptr ctxt before clearing WB!" << endmsg;
      finalSC = StatusCode::FAILURE;
      continue;
    }
    if ( m_algExecStateSvc->eventStatus( *thisFinishedEvtContext ) != EventStatus::Success ) {
      fatal() << "Failed event detected on " << thisFinishedEvtContext << endmsg;
      finalSC = StatusCode::FAILURE;
    }
    // shouldn't these incidents move to the forward scheduler?
    // If we want to consume incidents with an algorithm at the end of the graph
    // we need to add this to forward scheduler lambda action,
    // otherwise we have to do this serially on this thread!
    m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndProcessing, *thisFinishedEvtContext ) );
    m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndEvent, *thisFinishedEvtContext ) );

    debug() << "Clearing slot " << thisFinishedEvtContext->slot() << " (event " << thisFinishedEvtContext->evt()
            << ") of the whiteboard" << endmsg;

    StatusCode sc = clearWBSlot( thisFinishedEvtContext->slot() );
    if ( !sc.isSuccess() )
      error() << "Whiteboard slot " << thisFinishedEvtContext->slot() << " could not be properly cleared";

    delete thisFinishedEvtContext;

    finishedEvts++;
  }
  return finalSC;
}

StatusCode HiveSlimEventLoopMgr::executeEvent ( void *  par )

override

implementation of IEventProcessor::executeEvent(void* par)

Definition at line 301 of file HiveSlimEventLoopMgr.cpp.

{

  // Leave the interface intact and swallow this C trick.
  int& createdEvts = *( (int*)createdEvts_IntPtr );

  EventContext* evtContext( nullptr );

  // Check if event number is in blacklist
  if ( LIKELY( m_blackListBS != nullptr ) ) { // we are processing a finite number of events, use bitset blacklist
    if ( m_blackListBS->test( createdEvts ) ) {
      verbose() << "Event " << createdEvts << " on black list" << endmsg;
      return StatusCode::RECOVERABLE;
    }
  } else if ( std::binary_search( m_eventNumberBlacklist.begin(), m_eventNumberBlacklist.end(), createdEvts ) ) {

    verbose() << "Event " << createdEvts << " on black list" << endmsg;
    return StatusCode::RECOVERABLE;
  }

  if ( createEventContext( evtContext, createdEvts ).isFailure() ) {
    fatal() << "Impossible to create event context" << endmsg;
    return StatusCode::FAILURE;
  }

  verbose() << "Beginning to process event " << createdEvts << endmsg;

  // An incident may schedule a stop, in which case is better to exit before the actual execution.
  // DP have to find out who shoots this
  /*  if ( m_scheduledStop ) {
      always() << "Terminating event processing loop due to a stop scheduled by an incident listener" << endmsg;
      return StatusCode::SUCCESS;
      }*/

  StatusCode declEvtRootSc = declareEventRootAddress();
  if ( declEvtRootSc.isFailure() ) { // We ran out of events!
    createdEvts = -1;                // Set created event to a negative value: we finished!
    return StatusCode::SUCCESS;
  }

  // Fire BeginEvent "Incident"
  m_incidentSvc->fireIncident( std::make_unique<Incident>( name(), IncidentType::BeginEvent, *evtContext ) );

  // Now add event to the scheduler
  verbose() << "Adding event " << evtContext->evt() << ", slot " << evtContext->slot() << " to the scheduler" << endmsg;

  m_incidentSvc->fireIncident( std::make_unique<Incident>( name(), IncidentType::BeginProcessing, *evtContext ) );

  StatusCode addEventStatus = m_schedulerSvc->pushNewEvent( evtContext );

  // If this fails, we need to wait for something to complete
  if ( !addEventStatus.isSuccess() ) {
    fatal() << "An event processing slot should be now free in the scheduler, but it appears not to be the case."
            << endmsg;
  }

  createdEvts++;
  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::executeRun ( int  maxevt )

override

implementation of IEventProcessor::executeRun()

Definition at line 364 of file HiveSlimEventLoopMgr.cpp.

{
  StatusCode sc;
  bool eventfailed = false;

  if ( maxevt > 0 ) { // finite number of events to process
    const unsigned int umaxevt = static_cast<unsigned int>( maxevt );
    m_blackListBS              = new boost::dynamic_bitset<>( maxevt ); // all initialized to zero
    for ( unsigned int i = 0; i < m_eventNumberBlacklist.size() && m_eventNumberBlacklist[i] <= umaxevt;
          ++i ) { // black list is sorted in init
      m_blackListBS->set( m_eventNumberBlacklist[i], true );
    }
  }

  // Call now the nextEvent(...)
  sc                                = nextEvent( maxevt );
  if ( sc.isFailure() ) eventfailed = true;

  delete m_blackListBS;

  return eventfailed ? StatusCode::FAILURE : StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::finalize ( )

override

implementation of IService::finalize

Definition at line 237 of file HiveSlimEventLoopMgr.cpp.

{

  StatusCode scRet;
  StatusCode sc = Service::finalize();

  if ( sc.isFailure() ) {
    scRet = StatusCode::FAILURE;
    error() << "Problems finalizing Service base class" << endmsg;
  }

  // Save Histograms Now
  if ( m_histoPersSvc ) {
    HistogramAgent agent;
    sc = m_histoDataMgrSvc->traverseTree( &agent );
    if ( sc.isSuccess() ) {
      const IDataSelector& objects = agent.selectedObjects();
      // skip /stat entry!
      sc = std::accumulate( begin( objects ), end( objects ), sc, [&]( StatusCode s, const auto& i ) {
        IOpaqueAddress* pAddr = nullptr;
        StatusCode iret       = m_histoPersSvc->createRep( i, pAddr );
        if ( iret.isSuccess() ) i->registry()->setAddress( pAddr );
        return s.isFailure() ? s : iret;
      } );
      sc = std::accumulate( begin( objects ), end( objects ), sc, [&]( StatusCode s, const auto& i ) {
        IRegistry* reg  = i->registry();
        StatusCode iret = m_histoPersSvc->fillRepRefs( reg->address(), i );
        return s.isFailure() ? s : iret;
      } );
      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;
    }
  }

  scRet = sc;

  // Release event selector context
  if ( m_evtSelector && m_evtContext ) {
    m_evtSelector->releaseContext( m_evtContext ).ignore();
    m_evtContext = nullptr;
  }

  m_incidentSvc.reset();
  m_appMgrUI.reset();

  // Release all interfaces...
  m_histoDataMgrSvc.reset();
  m_histoPersSvc.reset();

  m_evtSelector.reset();
  m_whiteboard.reset();
  m_evtDataMgrSvc.reset();

  return scRet;
}

StatusCode HiveSlimEventLoopMgr::getEventRoot

(

IOpaqueAddress *&

refpAddr

)

Create event address using event selector.

Definition at line 497 of file HiveSlimEventLoopMgr.cpp.

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

StatusCode HiveSlimEventLoopMgr::initialize ( )

override

implementation of IService::initialize

Definition at line 64 of file HiveSlimEventLoopMgr.cpp.

{

  if ( !m_appMgrUI ) return StatusCode::FAILURE;

  StatusCode sc = Service::initialize();
  if ( !sc.isSuccess() ) {
    error() << "Failed to initialize Service Base class." << endmsg;
    return StatusCode::FAILURE;
  }

  // Get the references to the services that are needed by the ApplicationMgr itself
  m_incidentSvc = serviceLocator()->service( "IncidentSvc" );
  if ( !m_incidentSvc ) {
    fatal() << "Error retrieving IncidentSvc." << endmsg;
    return StatusCode::FAILURE;
  }

  // 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_whiteboard = serviceLocator()->service( "EventDataSvc" );
  if ( !m_whiteboard ) {
    fatal() << "Error retrieving EventDataSvc interface IHiveWhiteBoard." << endmsg;
    return StatusCode::FAILURE;
  }
  m_schedulerSvc = serviceLocator()->service( m_schedulerName );
  if ( !m_schedulerSvc ) {
    fatal() << "Error retrieving SchedulerSvc interface IScheduler." << 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.length() == 0 ) {
    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 = 0;
    m_evtContext  = 0;
    if ( m_warnings ) {
      warning() << "Unable to locate service \"EventSelector\" " << endmsg;
      warning() << "No events will be processed from external input." << endmsg;
    }
  }

  // Setup access to histogramming services
  m_histoDataMgrSvc = serviceLocator()->service( "HistogramDataSvc" );
  if ( !m_histoDataMgrSvc ) {
    fatal() << "Error retrieving HistogramDataSvc." << endmsg;
    return sc;
  }
  // Setup histogram persistency
  m_histoPersSvc = serviceLocator()->service( "HistogramPersistencySvc" );
  if ( !m_histoPersSvc ) {
    warning() << "Histograms cannot not be saved - though required." << endmsg;
    return sc;
  }

  // Setup algorithm resource pool
  m_algResourcePool = serviceLocator()->service( "AlgResourcePool" );
  if ( !m_algResourcePool ) {
    fatal() << "Error retrieving AlgResourcePool" << endmsg;
    return StatusCode::FAILURE;
  }

  m_algExecStateSvc = serviceLocator()->service( "AlgExecStateSvc" );
  if ( !m_algExecStateSvc ) {
    fatal() << "Error retrieving AlgExecStateSvc" << endmsg;
    return StatusCode::FAILURE;
  }

  std::sort( m_eventNumberBlacklist.begin(), m_eventNumberBlacklist.end() );
  info() << "Found " << m_eventNumberBlacklist.size() << " events in black list" << endmsg;

  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::nextEvent ( int  maxevt )

override

implementation of IService::nextEvent

Definition at line 408 of file HiveSlimEventLoopMgr.cpp.

{

  // Calculate runtime
  using Clock = std::chrono::high_resolution_clock;

  // Reset the application return code.
  Gaudi::setAppReturnCode( m_appMgrProperty, Gaudi::ReturnCode::Success, true ).ignore();

  int finishedEvts = 0;
  int createdEvts  = 0;
  int skippedEvts  = 0;
  info() << "Starting loop on events" << endmsg;
  // Loop until the finished events did not reach the maxevt number
  bool loop_ended = false;
  // Run the first event before spilling more than one
  bool newEvtAllowed = false;

  constexpr double oneOver1024 = 1. / 1024.;

  uint iteration  = 0;
  auto start_time = Clock::now();
  while ( !loop_ended && ( maxevt < 0 || ( finishedEvts + skippedEvts ) < maxevt ) ) {
    debug() << "work loop iteration " << iteration++ << endmsg;
    // if the created events did not reach maxevt, create an event
    if ( ( newEvtAllowed || createdEvts == 0 ) &&  // Launch the first event alone
         createdEvts >= 0 &&                       // The events are not finished with an unlimited number of events
         ( createdEvts < maxevt || maxevt < 0 ) && // The events are not finished with a limited number of events
         m_schedulerSvc->freeSlots() > 0 &&        // There are still free slots in the scheduler
         m_whiteboard->freeSlots() > 0 ) {         // There are still free slots in the whiteboard

      if ( 1 == createdEvts ) // reset counter to count from event 1
        start_time = Clock::now();

      debug() << "createdEvts: " << createdEvts << ", freeslots: " << m_schedulerSvc->freeSlots() << endmsg;
      //  DP remove to remove the syscalls...
      //      if (0!=createdEvts){
      //        info()   << "Event Number = " << createdEvts
      //                 << " WSS (MB) = " << System::mappedMemory(System::MemoryUnit::kByte)*oneOver1024
      //                << " Time (s) = " << secsFromStart(start_time) << endmsg;
      //        }

      // TODO can we adapt the interface of executeEvent for a nicer solution?
      StatusCode sc = StatusCode::RECOVERABLE;
      while ( !sc.isSuccess()                               // we haven't created an event yet
              && ( createdEvts < maxevt || maxevt < 0 ) ) { // redunant check for maxEvts, can we do better?
        sc = executeEvent( &createdEvts );

        if ( sc.isRecoverable() ) { // we skipped an event

          // this is all to skip the event
          size_t slot =
              m_whiteboard->allocateStore( createdEvts ); // we need a new store, not to change the previous event
          m_whiteboard->selectStore( slot );
          declareEventRootAddress();       // actually skip over the event
          m_whiteboard->freeStore( slot ); // delete the store

          ++createdEvts;
          ++skippedEvts;
        } else if ( sc.isRecoverable() ) { // exit immediatly
          return StatusCode::FAILURE;
        } // else we have an success --> exit loop
      }

    } // end if condition createdEvts < maxevt
    else {
      // all the events were created but not all finished or the slots were
      // all busy: the scheduler should finish its job

      debug() << "Draining the scheduler" << endmsg;

      // Pull out of the scheduler the finished events
      if ( drainScheduler( finishedEvts ).isFailure() ) loop_ended = true;
      newEvtAllowed                                                = true;
    }
  } // end main loop on finished events
  auto end_time = Clock::now();

  info() << "---> Loop Finished (skipping 1st evt) - "
         << " WSS " << System::mappedMemory( System::MemoryUnit::kByte ) * oneOver1024 << " total time "
         << std::chrono::duration_cast<std::chrono::nanoseconds>( end_time - start_time ).count() << endmsg;
  info() << skippedEvts << " events were SKIPed" << endmsg;

  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::reinitialize ( )

override

implementation of IService::reinitialize

Definition at line 164 of file HiveSlimEventLoopMgr.cpp.

{

  // Check to see whether a new Event Selector has been specified
  setProperty( m_appMgrProperty->getProperty( "EvtSel" ) );
  if ( m_evtsel != "NONE" || m_evtsel.empty() ) {
    auto theSvc    = serviceLocator()->service( "EventSelector" );
    auto theEvtSel = theSvc.as<IEvtSelector>();
    StatusCode sc;
    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
        m_evtSelector->releaseContext( m_evtContext );
        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;
      }

    } else if ( m_evtSelector ) {
      if ( m_evtContext ) {
        m_evtSelector->releaseContext( m_evtContext );
        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 ) {
    m_evtSelector->releaseContext( m_evtContext );
    m_evtSelector = nullptr;
    m_evtContext  = nullptr;
  }
  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::stop ( )

override

implementation of IService::stop

Definition at line 223 of file HiveSlimEventLoopMgr.cpp.

{
  if ( !m_endEventFired ) {
    // Fire pending EndEvent incident
    m_incidentSvc->fireIncident( Incident( name(), IncidentType::EndEvent ) );
    m_endEventFired = true;
  }
  return StatusCode::SUCCESS;
}

StatusCode HiveSlimEventLoopMgr::stopRun ( )

override

implementation of IEventProcessor::stopRun()

Definition at line 390 of file HiveSlimEventLoopMgr.cpp.

{
  // Set the application return code
  auto appmgr = serviceLocator()->as<IProperty>();
  if ( Gaudi::setAppReturnCode( appmgr, Gaudi::ReturnCode::ScheduledStop ).isFailure() ) {
    error() << "Could not set return code of the application (" << Gaudi::ReturnCode::ScheduledStop << ")" << endmsg;
  }
  m_scheduledStop = true;
  return StatusCode::SUCCESS;
}

Member Data Documentation

SmartIF<IIncidentListener> HiveSlimEventLoopMgr::m_abortEventListener

protected

Instance of the incident listener waiting for AbortEvent.

Definition at line 69 of file HiveSlimEventLoopMgr.h.

SmartIF<IAlgExecStateSvc> HiveSlimEventLoopMgr::m_algExecStateSvc

protected

Reference to the AlgExecStateSvc.

Definition at line 52 of file HiveSlimEventLoopMgr.h.

SmartIF<IAlgResourcePool> HiveSlimEventLoopMgr::m_algResourcePool

protected

Reference to the Algorithm resource pool.

Definition at line 50 of file HiveSlimEventLoopMgr.h.

SmartIF<IProperty> HiveSlimEventLoopMgr::m_appMgrProperty

protected

Property interface of ApplicationMgr.

Definition at line 54 of file HiveSlimEventLoopMgr.h.

SmartIF<IAppMgrUI> HiveSlimEventLoopMgr::m_appMgrUI

protected

Reference to the IAppMgrUI interface of the application manager.

Definition at line 73 of file HiveSlimEventLoopMgr.h.

boost::dynamic_bitset* HiveSlimEventLoopMgr::m_blackListBS = nullptr

protected

Definition at line 78 of file HiveSlimEventLoopMgr.h.

bool HiveSlimEventLoopMgr::m_endEventFired = false

protected

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

Definition at line 57 of file HiveSlimEventLoopMgr.h.

Gaudi::Property<std::vector<unsigned int> > HiveSlimEventLoopMgr::m_eventNumberBlacklist {this, "EventNumberBlackList", {}, ""}

protected

Definition at line 35 of file HiveSlimEventLoopMgr.h.

IEvtSelector::Context* HiveSlimEventLoopMgr::m_evtContext = nullptr

protected

Event Iterator.

Definition at line 42 of file HiveSlimEventLoopMgr.h.

SmartIF<IDataManagerSvc> HiveSlimEventLoopMgr::m_evtDataMgrSvc

protected

Reference to the Event Data Service's IDataManagerSvc interface.

Definition at line 38 of file HiveSlimEventLoopMgr.h.

Gaudi::Property<std::string> HiveSlimEventLoopMgr::m_evtsel {this, "EvtSel", "", ""}

protected

Definition at line 31 of file HiveSlimEventLoopMgr.h.

SmartIF<IEvtSelector> HiveSlimEventLoopMgr::m_evtSelector

protected

Reference to the Event Selector.

Definition at line 40 of file HiveSlimEventLoopMgr.h.

SmartIF<IDataManagerSvc> HiveSlimEventLoopMgr::m_histoDataMgrSvc

protected

Reference to the Histogram Data Service.

Definition at line 44 of file HiveSlimEventLoopMgr.h.

SmartIF<IConversionSvc> HiveSlimEventLoopMgr::m_histoPersSvc

protected

Reference to the Histogram Persistency Service.

Definition at line 46 of file HiveSlimEventLoopMgr.h.

Gaudi::Property<std::string> HiveSlimEventLoopMgr::m_histPersName {this, "HistogramPersistency", "", ""}

protected

Definition at line 30 of file HiveSlimEventLoopMgr.h.

SmartIF<IIncidentSvc> HiveSlimEventLoopMgr::m_incidentSvc

protected

Reference to the incident service.

Definition at line 75 of file HiveSlimEventLoopMgr.h.

bool HiveSlimEventLoopMgr::m_scheduledStop = false

protected

Scheduled stop of event processing.

Definition at line 71 of file HiveSlimEventLoopMgr.h.

Gaudi::Property<std::string> HiveSlimEventLoopMgr::m_schedulerName

protected

Initial value:

{this, "SchedulerName", "AvalancheSchedulerSvc",
                                               "Name of the scheduler to be used"}

Definition at line 33 of file HiveSlimEventLoopMgr.h.

SmartIF<IScheduler> HiveSlimEventLoopMgr::m_schedulerSvc

protected

A shortcut for the scheduler.

Definition at line 59 of file HiveSlimEventLoopMgr.h.

Gaudi::Property<bool> HiveSlimEventLoopMgr::m_warnings {this, "Warnings", true, "Set this property to false to suppress warning messages"}

protected

Definition at line 32 of file HiveSlimEventLoopMgr.h.

SmartIF<IHiveWhiteBoard> HiveSlimEventLoopMgr::m_whiteboard

protected

Reference to the Whiteboard.

Definition at line 48 of file HiveSlimEventLoopMgr.h.

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

• GaudiHive/GaudiHive/HiveSlimEventLoopMgr.h
• GaudiHive/src/HiveSlimEventLoopMgr.cpp