exception.hpp

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/*
---------------------------------------------------------------------------
 
    This file is part of uHAL.
 
    uHAL is a hardware access library and programming framework
    originally developed for upgrades of the Level-1 trigger of the CMS
    experiment at CERN.
 
    uHAL is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    uHAL is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with uHAL.  If not, see <http://www.gnu.org/licenses/>.
 
 
      Andrew Rose, Imperial College, London
      email: awr01 <AT> imperial.ac.uk
 
      Marc Magrans de Abril, CERN
      email: marc.magrans.de.abril <AT> cern.ch
 
---------------------------------------------------------------------------
*/
 
#ifndef _uhal_log_exception_hpp_
#define _uhal_log_exception_hpp_
 
 
#include <exception>
#include <string>
#include <sys/time.h>
 
 
#define UHAL_DEFINE_DERIVED_EXCEPTION_CLASS( ClassName , BaseClassName, ClassDescription )\
  class ClassName : public BaseClassName {\
  public:\
    ClassName() : BaseClassName() {}\
    ClassName(const std::string& aMessage) : BaseClassName() {append(aMessage.c_str());}\
    void throwAsDerivedType(){ throw ClassName(*this); } \
  protected:\
    std::string description() const throw() { return std::string( ClassDescription ); } \
};
 
#define UHAL_DEFINE_EXCEPTION_CLASS( ClassName , ClassDescription ) UHAL_DEFINE_DERIVED_EXCEPTION_CLASS(ClassName, uhal::exception::exception, ClassDescription)
 
 
namespace uhal
{
 
  namespace exception
  {
 
    class exception : public std::exception
    {
      public:
 
        exception ();
 
        exception ( const exception& aExc );
 
        exception& operator= ( const exception& aExc );
 
        virtual ~exception() throw();
 
        virtual const char* what() const throw();
 
        virtual void throwAsDerivedType() = 0;
 
        void append ( const char* aCStr ) throw();
 
 
      protected:
        virtual std::string description() const throw() = 0;
 
      private:
        timeval mTime;
 
        char* mString;
    };
 
  }
}
 
 
#endif