dtk_uuid.hpp

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#ifndef __DTK_UUID_HPP__
#define __DTK_UUID_HPP__
 
#include <iosfwd>
#include "def/define.h"
 
class Dtk_UUID
{
private:
     Dtk_Int32   _vals[ 4 ];
public:
     Dtk_UUID() { _vals[ 0 ] = _vals[ 1 ] = _vals[ 2 ] = _vals[ 3 ] = 0; };
     Dtk_UUID( const Dtk_UUID & s )
     {
          _vals[ 0 ] = s._vals[ 0 ];
          _vals[ 1 ] = s._vals[ 1 ];
          _vals[ 2 ] = s._vals[ 2 ];
          _vals[ 3 ] = s._vals[ 3 ];
     };
     Dtk_UUID( const Dtk_Int32( &inVals )[ 4 ] )
     {
          _vals[ 0 ] = inVals[ 0 ];
          _vals[ 1 ] = inVals[ 1 ];
          _vals[ 2 ] = inVals[ 2 ];
          _vals[ 3 ] = inVals[ 3 ];
     };
     Dtk_UUID( const Dtk_Int32 inVal1, const Dtk_Int32 inVal2, const Dtk_Int32 inVal3, const Dtk_Int32 inVal4 )
     {
          _vals[ 0 ] = inVal1;
          _vals[ 1 ] = inVal2;
          _vals[ 2 ] = inVal3;
          _vals[ 3 ] = inVal4;
     };
     Dtk_Int32& operator []( Dtk_Size_t pos ) { return ( pos < 4 ) ? _vals[ pos ] : _vals[ 3 ]; }
     const Dtk_Int32& operator []( Dtk_Size_t pos ) const { return ( pos < 4 ) ? _vals[ pos ] : _vals[ 3 ]; }
     void Increment();
     int CompareTo( const Dtk_UUID& inUuid ) const;
     static void GenerateRandomUUID( Dtk_UUID& outRes );
     void clear() { _vals[ 0 ] = _vals[ 1 ] = _vals[ 2 ] = _vals[ 3 ] = 0; }
     Dtk_bool IsNull() const { return( _vals[ 0 ] || _vals[ 1 ] || _vals[ 2 ] || _vals[ 3 ] ) ? DTK_FALSE : DTK_TRUE; }
     friend inline int operator < ( const Dtk_UUID &s1, const Dtk_UUID &s2 ) { return ( s1.CompareTo( s2 ) < 0 ) ? 1 : 0; }
     bool operator ==( const Dtk_UUID& s1 ) const { return ( _vals[ 0 ] == s1._vals[ 0 ] ) && ( _vals[ 1 ] == s1._vals[ 1 ] ) && ( _vals[ 2 ] == s1._vals[ 2 ] ) && ( _vals[ 3 ] == s1._vals[ 3 ] ); }
     friend std::ostream& operator <<( std::ostream &inOutStream, const Dtk_UUID &inVal );
};
class Dtk_Random
{
private:
     static long _Seed;
     static long InitSrand();
public:
     static long GetRandomNumber();
};
 
#endif