DbStatus.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: DbStatus.h 726071 2016-02-25 09:23:05Z krasznaa $
//====================================================================
//  Storage Service DbStatus definition file
//--------------------------------------------------------------------
//
//  @author      M.Frank
//====================================================================
#ifndef POOL_DBSTATUS_H
#define POOL_DBSTATUS_H 1
 
/*
 *   POOL namespace declaration
 */
namespace pool {
 
  class DbStatus  {
  private:
    unsigned int m_code;
 
  public:
    enum  ErrorLevel    {
      Success    = 1,
      Info       = (1u<<30),
      Warning    = (1u<<31),
      Error      = (1u<<31) + (1u<<30)
    };
    DbStatus() : m_code(Error)                          {                     }
    DbStatus(const DbStatus&) = default;
    DbStatus& operator=(const DbStatus&) = default;
    DbStatus(unsigned int code) : m_code(code)  {                        }
    DbStatus(ErrorLevel lvl, unsigned int fac, unsigned int code);
    ~DbStatus() = default;
    operator unsigned int() const              {  return m_code;              }
    DbStatus& operator=(unsigned int value)    { m_code = value; return *this;}
    unsigned int   severity()  const  { return  m_code>>30;                   }
    unsigned int   facility()  const  { return (m_code&0x0FFF0000)>>16;       }
    unsigned int   code()      const  { return  m_code&0x0000FFFF;            }
    unsigned int   reserved()  const  { return (m_code&0x3FFFFFFF)>>28;       }
    unsigned int   value()     const  { return  m_code;                       }
    bool            isSuccess() const { return (m_code>>30)==0 && (m_code&1); }
    bool            isInfo()    const { return (m_code>>30)==1;               }
    bool            isWarning() const { return (m_code>>30)==2;               }
    bool            isError()   const { return (m_code>>30)==3;               }
    static unsigned int success()     { return  Success;                      }
    static unsigned int info()        { return  Info;                         }        
    static unsigned int warning()     { return  Warning;                      }
    static unsigned int error()       { return  Error;                        }
 
    friend bool operator< ( const DbStatus& a, const DbStatus& b );
    friend bool operator> ( const DbStatus& a, const DbStatus& b );
  };
 
 
  inline DbStatus::DbStatus(DbStatus::ErrorLevel lvl, unsigned int fac, unsigned int cod)
  { m_code = (lvl&Error)+((fac&0x0FFF)<<16)+(cod&0xFFFF);                     }
  inline bool operator< ( const DbStatus& a, const DbStatus& b ) 
  { return a.m_code < b.m_code;                                               }
  inline bool operator> ( const DbStatus& a, const DbStatus& b ) 
  { return a.m_code < b.m_code;                                               }
}
 
#endif  // POOL_DBSTATUS_H