edm::RootAutoLibraryLoader Class Reference

#include <RootAutoLibraryLoader.h>

Inheritance diagram for edm::RootAutoLibraryLoader:

Public Member Functions
virtual TClass *	GetClass (char const *classname, Bool_t load)
	return class type More...
virtual TClass *	GetClass (type_info const &typeinfo, Bool_t load)
	return class type More...

Static Public Member Functions
static void	enable ()
	interface for TClass generators More...
static void	loadAll ()
	load all known libraries holding dictionaries More...

Private Member Functions
RootAutoLibraryLoader const &	operator= (RootAutoLibraryLoader const &)
	RootAutoLibraryLoader ()
	RootAutoLibraryLoader (RootAutoLibraryLoader const &)

Private Attributes
char const *	classNameAttemptingToLoad_
bool	isInitializingCintex_

Friends
class	DummyClassToStopCompilerWarning

Detailed Description

Definition at line 19 of file RootAutoLibraryLoader.h.

Constructor & Destructor Documentation

RootAutoLibraryLoader::RootAutoLibraryLoader ( )

private

Definition at line 300 of file RootAutoLibraryLoader.cc.

References classNameAttemptingToLoad_, G__p_class_autoloading, h, and isInitializingCintex_.

                                                :
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
     classNameAttemptingToLoad_(nullptr),
     isInitializingCintex_(true) {
#else
     classNameAttemptingToLoad_(nullptr) {
#endif
      AssertHandler h;
      gROOT->AddClassGenerator(this);
      ROOT::Cintex::Cintex::Enable();
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
      isInitializingCintex_ =false;
#endif
      //set the special cases
      std::map<std::string, std::string>& specials = cintToReflexSpecialCasesMap();
      if(specials.empty()) {
         addWrapperOfVectorOfBuiltin(specials,"bool");

         addWrapperOfVectorOfBuiltin(specials,"char");
         addWrapperOfVectorOfBuiltin(specials,"unsigned char");
         addWrapperOfVectorOfBuiltin(specials,"signed char");
         addWrapperOfVectorOfBuiltin(specials,"short");
         addWrapperOfVectorOfBuiltin(specials,"unsigned short");
         addWrapperOfVectorOfBuiltin(specials,"int");
         addWrapperOfVectorOfBuiltin(specials,"unsigned int");
         addWrapperOfVectorOfBuiltin(specials,"long");
         addWrapperOfVectorOfBuiltin(specials,"unsigned long");
         addWrapperOfVectorOfBuiltin(specials,"long long");
         addWrapperOfVectorOfBuiltin(specials,"unsigned long long");

         addWrapperOfVectorOfBuiltin(specials,"float");
         addWrapperOfVectorOfBuiltin(specials,"double");
      }
      //std::cout << "my loader" << std::endl;
      //remember if the callback was already set so we can chain together our results
      gPrevious = G__p_class_autoloading;
      G__set_class_autoloading_callback(&ALL_AutoLoadCallback);
      registerTypes();
   }

edm::RootAutoLibraryLoader::RootAutoLibraryLoader ( RootAutoLibraryLoader const &  )

private

Member Function Documentation

void RootAutoLibraryLoader::enable ( )

static

interface for TClass generators

enable automatic library loading

Definition at line 404 of file RootAutoLibraryLoader.cc.

Referenced by AutoLibraryLoader::enable(), edm::service::InitRootHandlers::InitRootHandlers(), loadAll(), and edm::StreamerOutputModuleBase::StreamerOutputModuleBase().

                                 {
      //static BareRootProductGetter s_getter;
      //static EDProductGetter::Operate s_op(&s_getter);
      static RootAutoLibraryLoader s_loader;
   }

TClass * RootAutoLibraryLoader::GetClass ( char const *  classname, Bool_t  load  )

virtual

return class type

Definition at line 345 of file RootAutoLibraryLoader.cc.

References className(), data-class-funcs::classname, classNameAttemptingToLoad_, customizeTrackingMonitorSeedNumber::idx, isInitializingCintex_, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by GetClass().

                                                                     {
      TClass* returnValue = nullptr;
      if(classNameAttemptingToLoad_ != nullptr && !strcmp(classname, classNameAttemptingToLoad_)) {
         // We can try to see if the class name contains "basic_string<char>".
         // If so, we replace "basic_string<char>" with "string" and try again.
         std::string className(classname);
         std::string::size_type idx = className.find("basic_string<char>");
         if (idx != std::string::npos) {
            className.replace(idx, 18, std::string("string"));
            //if basic_string<char> was the last argument to a templated class
            // then there would be an extra space to separate the two '>'
            if(className.size() > idx + 6 && className[idx + 6] == ' ') {
              className.replace(idx + 6, 1, "");
            }
            classNameAttemptingToLoad_ = className.c_str();
            returnValue = TClass::GetClass(className.c_str(), kTRUE);
            classNameAttemptingToLoad_ = classname;
            return returnValue;
         }
         //NOTE: As of ROOT 5.27.06 this warning generates false positives for HepMC classes because
         // ROOT has special handling for them built into class.rules
         //std::cerr << "WARNING[RootAutoLibraryLoader]: ROOT failed to create CINT dictionary for " << classname << std::endl;
         return nullptr;
      }
      //std::cout << "looking for " << classname << " load " << (load? "T":"F") << std::endl;
      if (load) {
        //std::cout << " going to call loadLibraryForClass" << std::endl;
        //[ROOT 5.28] When Cintex is in its 'Enable' method it will register callbacks to build
        // TClasses. During this phase we do not want to actually force TClasses to have to 
        // come into existence.
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
        if (not isInitializingCintex_ and loadLibraryForClass(classname)) {
#else
         if (loadLibraryForClass(classname)) {
#endif
          //use this to check for infinite recursion attempt
          classNameAttemptingToLoad_ = classname;
          // This next call will create the TClass object for the class.
          // It will also attempt to load the dictionary for the class
          // if the second argument is kTRUE. This is the default, so it
          // need not be explicitly specified.
          returnValue = TClass::GetClass(classname, kTRUE);
          classNameAttemptingToLoad_ = nullptr;
        }
      }
      return returnValue;
   }

TClass * RootAutoLibraryLoader::GetClass ( type_info const &  typeinfo, Bool_t  load  )

virtual

return class type

Definition at line 394 of file RootAutoLibraryLoader.cc.

References GetClass(), and svgfig::load().

                                                                         {
     //std::cout << "looking for type " << typeinfo.name() << std::endl;
      TClass* returnValue = nullptr;
      if(load) {
         return GetClass(typeinfo.name(), load);
      }
      return returnValue;
   }

void RootAutoLibraryLoader::loadAll ( )

static

load all known libraries holding dictionaries

Definition at line 411 of file RootAutoLibraryLoader.cc.

References edmplugin::PluginManager::categoryToInfos(), enable(), edmplugin::PluginCapabilities::get(), edmplugin::PluginManager::get(), edmplugin::PluginCapabilities::load(), and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by edm::service::InitRootHandlers::InitRootHandlers(), and AutoLibraryLoader::loadAll().

                                  {
     // std::cout << "LoadAllDictionaries" << std::endl;
     enable();

     edmplugin::PluginManager* db =  edmplugin::PluginManager::get();

     typedef edmplugin::PluginManager::CategoryToInfos CatToInfos;

     CatToInfos::const_iterator itFound = db->categoryToInfos().find("Capability");

     if(itFound == db->categoryToInfos().end()) {
       return;
     }
     std::string lastClass;

     //give ROOT a name for the file we are loading
     RootLoadFileSentry sentry;

     for(auto const& info : itFound->second) {
       if (lastClass == info.name_) {
         continue;
       }

       lastClass = info.name_;
       edmplugin::PluginCapabilities::get()->load(lastClass);
       //NOTE: since we have the library already, we could be more efficient if we just load it ourselves
     }
   }

RootAutoLibraryLoader const& edm::RootAutoLibraryLoader::operator= ( RootAutoLibraryLoader const &  )

private

Friends And Related Function Documentation

friend class DummyClassToStopCompilerWarning

friend

Definition at line 20 of file RootAutoLibraryLoader.h.

Member Data Documentation

char const* edm::RootAutoLibraryLoader::classNameAttemptingToLoad_

private

Definition at line 35 of file RootAutoLibraryLoader.h.

Referenced by GetClass(), and RootAutoLibraryLoader().

bool edm::RootAutoLibraryLoader::isInitializingCintex_

private

Definition at line 40 of file RootAutoLibraryLoader.h.

Referenced by GetClass(), and RootAutoLibraryLoader().