/data/refman/pasoursint/CMSSW_5_3_0/src/FWCore/Services/src/EnableFloatingPointExceptions.h

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#ifndef FWCore_Services_FpeHandler_h
#define FWCore_Services_FpeHandler_h
// -*- C++ -*-
//
// Package:     Services
// Class  :     EnableFloatingPointExceptions
// 
//
// Original Author:  E. Sexton-Kennedy
//         Created:  Tue Apr 11 13:43:16 CDT 2006
//

#include <string>
#include <map>
#include <stack>

namespace edm {

   class ParameterSet;
   class ActivityRegistry;
   class ModuleDescription;
   class ConfigurationDescriptions;

   namespace service {

      class EnableFloatingPointExceptions {
      public:
         typedef int fpu_flags_type;
         EnableFloatingPointExceptions(ParameterSet const& pset,
                                       ActivityRegistry & registry);

         void postEndJob();

         void preModuleBeginJob(ModuleDescription const& description);
         void postModuleBeginJob(ModuleDescription const& description);
         void preModuleEndJob(ModuleDescription const& description);
         void postModuleEndJob(ModuleDescription const& description);

         void preModuleBeginRun(ModuleDescription const& description);
         void postModuleBeginRun(ModuleDescription const& description);
         void preModuleEndRun(ModuleDescription const& description);
         void postModuleEndRun(ModuleDescription const& description);

         void preModuleBeginLumi(ModuleDescription const& description);
         void postModuleBeginLumi(ModuleDescription const& description);
         void preModuleEndLumi(ModuleDescription const& description);
         void postModuleEndLumi(ModuleDescription const& description);

         void preModule(ModuleDescription const& description);
         void postModule(ModuleDescription const& description);

         static void fillDescriptions(edm::ConfigurationDescriptions & descriptions);

      private:

         void establishModuleEnvironments(ParameterSet const& pset);

         void preActions(ModuleDescription const& description,
                         char const* debugInfo);

         void postActions(ModuleDescription const& description,
                          char const* debugInfo);

         void setPrecision(bool precisionDouble);

         void enableAndDisableExcept(fpu_flags_type target);

         void echoState() const;

         fpu_flags_type fpuState_;
         fpu_flags_type defaultState_;
         std::map<std::string, fpu_flags_type> stateMap_;
         std::stack<fpu_flags_type> stateStack_;
         bool reportSettings_;
      };
   }
}
#endif