#include <InitRootHandlers.h>

Inheritance diagram for edm::service::InitRootHandlers:

Public Member Functions
	InitRootHandlers (ParameterSet const &pset)
virtual	~InitRootHandlers ()
Static Public Member Functions
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
Private Member Functions
virtual void	disableErrorHandler_ ()
virtual void	enableErrorHandler_ ()
virtual void	enableErrorHandlerWithoutWarnings_ ()
Private Attributes
bool	autoLibraryLoader_
bool	resetErrHandler_
bool	unloadSigHandler_

Detailed Description

Definition at line 11 of file InitRootHandlers.h.

Constructor & Destructor Documentation

edm::service::InitRootHandlers::InitRootHandlers ( ParameterSet const & pset ) [explicit]

Definition at line 187 of file InitRootHandlers.cc.

References autoLibraryLoader_, edm::RootAutoLibraryLoader::enable(), reco::get(), edm::ParameterSet::getUntrackedParameter(), edm::installCustomHandler(), resetErrHandler_, edm::setRefCoreStreamer(), edm::setStreamedProductStreamer(), and unloadSigHandler_.

      : RootHandlers(),
        unloadSigHandler_(pset.getUntrackedParameter<bool> ("UnloadRootSigHandler")),
        resetErrHandler_(pset.getUntrackedParameter<bool> ("ResetRootErrHandler")),
        autoLibraryLoader_(pset.getUntrackedParameter<bool> ("AutoLibraryLoader")) {

      if(unloadSigHandler_) {
      // Deactivate all the Root signal handlers and restore the system defaults
        gSystem->ResetSignal(kSigChild);
        gSystem->ResetSignal(kSigBus);
        gSystem->ResetSignal(kSigSegmentationViolation);
        gSystem->ResetSignal(kSigIllegalInstruction);
        gSystem->ResetSignal(kSigSystem);
        gSystem->ResetSignal(kSigPipe);
        gSystem->ResetSignal(kSigAlarm);
        gSystem->ResetSignal(kSigUrgent);
        gSystem->ResetSignal(kSigFloatingException);
        gSystem->ResetSignal(kSigWindowChanged);
      } else if(pset.getUntrackedParameter<bool>("AbortOnSignal")){
        //NOTE: ROOT can also be told to abort on these kinds of problems BUT
        // it requires an TApplication to be instantiated which causes problems
        gSystem->ResetSignal(kSigBus);
        gSystem->ResetSignal(kSigSegmentationViolation);
        gSystem->ResetSignal(kSigIllegalInstruction);
        installCustomHandler(SIGBUS,sig_dostack_then_abort);
        installCustomHandler(SIGSEGV,sig_dostack_then_abort);
        installCustomHandler(SIGILL,sig_dostack_then_abort);
      }

      if(resetErrHandler_) {

      // Replace the Root error handler with one that uses the MessageLogger
        SetErrorHandler(RootErrorHandler);
      }

      // Enable automatic Root library loading.
      if(autoLibraryLoader_) {
        RootAutoLibraryLoader::enable();
      }

      // Enable Cintex.
      ROOT::Cintex::Cintex::Enable();

      // Set ROOT parameters.
      TTree::SetMaxTreeSize(kMaxLong64);
      TH1::AddDirectory(kFALSE);
      G__SetCatchException(0);

      // Set custom streamers
      setRefCoreStreamer();
      setStreamedProductStreamer();

      // Load the library containing dictionaries for std:: classes (e.g. std::vector<int>)
      if (ROOT::Reflex::Type()== Reflex::Type::ByName("std::vector<std::vector<unsigned int> >")) {
         edmplugin::PluginCapabilities::get()->load("LCGReflex/std::vector<std::vector<unsigned int> >");
      }
    }

edm::service::InitRootHandlers::~InitRootHandlers ( ) [virtual]

Definition at line 245 of file InitRootHandlers.cc.

References f.

                                         {
      // close all open ROOT files
      // We get a new iterator each time,
      // because closing a file can invalidate the iterator
      while(gROOT->GetListOfFiles()->GetSize()) {
        TIter iter(gROOT->GetListOfFiles());
        TFile* f = dynamic_cast<TFile*>(iter.Next());
        if(f) f->Close();
      }
    }

Member Function Documentation

void edm::service::InitRootHandlers::disableErrorHandler_ ( ) [private, virtual]

Implements edm::RootHandlers.

Definition at line 271 of file InitRootHandlers.cc.

                                           {
        SetErrorHandler(DefaultErrorHandler);
    }

void edm::service::InitRootHandlers::enableErrorHandler_ ( ) [private, virtual]

Implements edm::RootHandlers.

Definition at line 276 of file InitRootHandlers.cc.

                                          {
        SetErrorHandler(RootErrorHandler);
    }

void edm::service::InitRootHandlers::enableErrorHandlerWithoutWarnings_ ( ) [private, virtual]

Implements edm::RootHandlers.

Definition at line 281 of file InitRootHandlers.cc.

                                                         {
        SetErrorHandler(RootErrorHandlerWithoutWarnings);
    }

void edm::service::InitRootHandlers::fillDescriptions ( ConfigurationDescriptions & descriptions ) [static]

Definition at line 256 of file InitRootHandlers.cc.

References edm::ConfigurationDescriptions::add(), edm::ParameterSetDescription::addUntracked(), and edm::ParameterSetDescription::setComment().

                                                                                   {
      ParameterSetDescription desc;
      desc.setComment("Centralized interface to ROOT.");
      desc.addUntracked<bool>("UnloadRootSigHandler", false)
          ->setComment("If True, signals are handled by this service, rather than by ROOT.");
      desc.addUntracked<bool>("ResetRootErrHandler", true)
          ->setComment("If True, ROOT messages (e.g. errors, warnings) are handled by this service, rather than by ROOT.");
      desc.addUntracked<bool>("AutoLibraryLoader", true)
          ->setComment("If True, enables automatic loading of data dictionaries.");
      desc.addUntracked<bool>("AbortOnSignal",true)
      ->setComment("If True, do an abort when a signal occurs that causes a crash. If False, ROOT will do an exit which attempts to do a clean shutdown.");
      descriptions.add("InitRootHandlers", desc);
    }