/*************** Valblk H Declares Source Code File (.H) ***************/ /* Name: VALBLK.H Version 2.1 */ /* */ /* (C) Copyright to the author Olivier BERTRAND 2005-2014 */ /* */ /* This file contains the VALBLK and derived classes declares. */ /***********************************************************************/ /***********************************************************************/ /* Include required application header files */ /* assert.h is header required when using the assert function. */ /* block.h is header containing Block global declarations. */ /***********************************************************************/ #ifndef __VALBLK__H__ #define __VALBLK__H__ #include "value.h" /***********************************************************************/ /* Utility used to allocate value blocks. */ /***********************************************************************/ DllExport PVBLK AllocValBlock(PGLOBAL, void*, int, int, int, int, bool, bool, bool); const char *GetFmt(int type, bool un = false); /***********************************************************************/ /* DB static external variables. */ /***********************************************************************/ extern MBLOCK Nmblk; /* Used to initialize MBLOCK's */ /***********************************************************************/ /* Class MBVALS is a utility class for (re)allocating VALBLK's. */ /***********************************************************************/ class MBVALS : public BLOCK { //friend class LSTBLK; friend class ARRAY; public: // Constructors MBVALS(void) {Vblk = NULL; Mblk = Nmblk;} // Methods void *GetMemp(void) {return Mblk.Memp;} PVBLK Allocate(PGLOBAL g, int type, int len, int prec, int n, bool sub = false); bool ReAllocate(PGLOBAL g, int n); void Free(void); protected: // Members PVBLK Vblk; // Pointer to VALBLK MBLOCK Mblk; // The memory block }; // end of class MBVALS typedef class MBVALS *PMBV; /***********************************************************************/ /* Class VALBLK represent a base class for variable blocks. */ /***********************************************************************/ class VALBLK : public BLOCK { public: // Constructors VALBLK(void *mp, int type, int nval, bool un = false); // Implementation int GetNval(void) {return Nval;} void SetNval(int n) {Nval = n;} void *GetValPointer(void) {return Blkp;} void SetValPointer(void *mp) {Blkp = mp;} int GetType(void) {return Type;} int GetPrec(void) {return Prec;} void SetCheck(bool b) {Check = b;} void MoveNull(int i, int j) {if (To_Nulls) To_Nulls[j] = To_Nulls[j];} virtual void SetNull(int n, bool b) {if (To_Nulls) {To_Nulls[n] = (b) ? '*' : 0;}} virtual bool IsNull(int n) {return To_Nulls && To_Nulls[n];} virtual bool IsNullable(void) {return Nullable;} virtual void SetNullable(bool b); virtual bool IsUnsigned(void) {return Unsigned;} virtual bool Init(PGLOBAL g, bool check) = 0; virtual int GetVlen(void) = 0; virtual PSZ GetCharValue(int n); virtual char GetTinyValue(int n) = 0; virtual uchar GetUTinyValue(int n) = 0; virtual short GetShortValue(int n) = 0; virtual ushort GetUShortValue(int n) = 0; virtual int GetIntValue(int n) = 0; virtual uint GetUIntValue(int n) = 0; virtual longlong GetBigintValue(int n) = 0; virtual ulonglong GetUBigintValue(int n) = 0; virtual double GetFloatValue(int n) = 0; virtual char *GetCharString(char *p, int n) = 0; virtual void ReAlloc(void *mp, int n) {Blkp = mp; Nval = n;} virtual void Reset(int n) = 0; virtual bool SetFormat(PGLOBAL g, PCSZ fmt, int len, int year = 0); virtual void SetPrec(int p) {} virtual bool IsCi(void) {return false;} // Methods virtual void SetValue(short, int) {assert(false);} virtual void SetValue(ushort, int) {assert(false);} virtual void SetValue(int, int) {assert(false);} virtual void SetValue(uint, int) {assert(false);} virtual void SetValue(longlong, int) {assert(false);} virtual void SetValue(ulonglong, int) {assert(false);} virtual void SetValue(double, int) {assert(false);} virtual void SetValue(char, int) {assert(false);} virtual void SetValue(uchar, int) {assert(false);} virtual void SetValue(PCSZ, int) {assert(false);} virtual void SetValue(const char *, uint, int) {assert(false);} virtual void SetValue(PVAL valp, int n) = 0; virtual void SetValue(PVBLK pv, int n1, int n2) = 0; virtual void SetMin(PVAL valp, int n) = 0; virtual void SetMax(PVAL valp, int n) = 0; virtual void Move(int i, int j) = 0; virtual int CompVal(PVAL vp, int n) = 0; virtual int CompVal(int i1, int i2) = 0; virtual void *GetValPtr(int n) = 0; virtual void *GetValPtrEx(int n) = 0; virtual int Find(PVAL vp) = 0; virtual int GetMaxLength(void) = 0; bool Locate(PVAL vp, int& i); protected: bool AllocBuff(PGLOBAL g, size_t size); void ChkIndx(int n); void ChkTyp(PVAL v); void ChkTyp(PVBLK vb); // Members PGLOBAL Global; // Used for messages and allocation MBLOCK Mblk; // Used to allocate buffer char *To_Nulls; // Null values array void *Blkp; // To value block bool Check; // If true SetValue types must match bool Nullable; // True if values can be null bool Unsigned; // True if values are unsigned int Type; // Type of individual values int Nval; // Max number of values in block int Prec; // Precision of float values }; // end of class VALBLK /***********************************************************************/ /* Class TYPBLK: represents a block of typed values. */ /***********************************************************************/ template class TYPBLK : public VALBLK { public: // Constructors TYPBLK(void *mp, int size, int type, int prec = 0, bool un = false); // Implementation virtual bool Init(PGLOBAL g, bool check); virtual int GetVlen(void) {return sizeof(TYPE);} virtual char GetTinyValue(int n) {return (char)Typp[n];} virtual uchar GetUTinyValue(int n) {return (uchar)Typp[n];} virtual short GetShortValue(int n) {return (short)Typp[n];} virtual ushort GetUShortValue(int n) {return (ushort)Typp[n];} virtual int GetIntValue(int n) {return (int)Typp[n];} virtual uint GetUIntValue(int n) {return (uint)Typp[n];} virtual longlong GetBigintValue(int n) {return (longlong)Typp[n];} virtual ulonglong GetUBigintValue(int n) {return (ulonglong)Typp[n];} virtual double GetFloatValue(int n) {return (double)Typp[n];} virtual char *GetCharString(char *p, int n); virtual void Reset(int n) {Typp[n] = 0;} // Methods using VALBLK::SetValue; virtual void SetValue(PCSZ sp, int n); virtual void SetValue(const char *sp, uint len, int n); virtual void SetValue(short sval, int n) {Typp[n] = (TYPE)sval; SetNull(n, false);} virtual void SetValue(ushort sval, int n) {Typp[n] = (TYPE)sval; SetNull(n, false);} virtual void SetValue(int lval, int n) {Typp[n] = (TYPE)lval; SetNull(n, false);} virtual void SetValue(uint lval, int n) {Typp[n] = (TYPE)lval; SetNull(n, false);} virtual void SetValue(longlong lval, int n) {Typp[n] = (TYPE)lval; SetNull(n, false);} virtual void SetValue(ulonglong lval, int n) {Typp[n] = (TYPE)lval; SetNull(n, false);} virtual void SetValue(double fval, int n) {Typp[n] = (TYPE)fval; SetNull(n, false);} virtual void SetValue(char cval, int n) {Typp[n] = (TYPE)cval; SetNull(n, false);} virtual void SetValue(uchar cval, int n) {Typp[n] = (TYPE)cval; SetNull(n, false);} virtual void SetValue(PVAL valp, int n); virtual void SetValue(PVBLK pv, int n1, int n2); virtual void SetMin(PVAL valp, int n); virtual void SetMax(PVAL valp, int n); virtual void Move(int i, int j); virtual int CompVal(PVAL vp, int n); virtual int CompVal(int i1, int i2); virtual void *GetValPtr(int n); virtual void *GetValPtrEx(int n); virtual int Find(PVAL vp); virtual int GetMaxLength(void); protected: // Specialized functions static ulonglong MaxVal(void); TYPE GetTypedValue(PVAL vp); TYPE GetTypedValue(PVBLK blk, int n); // Members TYPE* const &Typp; const char *Fmt; }; // end of class TYPBLK /***********************************************************************/ /* Class CHRBLK: represent a block of fixed length strings. */ /***********************************************************************/ class CHRBLK : public VALBLK { public: // Constructors CHRBLK(void *mp, int size, int type, int len, int prec, bool b); // Implementation virtual bool Init(PGLOBAL g, bool check); virtual int GetVlen(void) {return Long;} virtual PSZ GetCharValue(int n); virtual char GetTinyValue(int n); virtual uchar GetUTinyValue(int n); virtual short GetShortValue(int n); virtual ushort GetUShortValue(int n); virtual int GetIntValue(int n); virtual uint GetUIntValue(int n); virtual longlong GetBigintValue(int n); virtual ulonglong GetUBigintValue(int n); virtual double GetFloatValue(int n); virtual char *GetCharString(char *p, int n); virtual void Reset(int n); virtual void SetPrec(int p) {Ci = (p != 0);} virtual bool IsCi(void) {return Ci;} // Methods using VALBLK::SetValue; virtual void SetValue(PCSZ sp, int n); virtual void SetValue(const char *sp, uint len, int n); virtual void SetValue(PVAL valp, int n); virtual void SetValue(PVBLK pv, int n1, int n2); virtual void SetMin(PVAL valp, int n); virtual void SetMax(PVAL valp, int n); virtual void Move(int i, int j); virtual int CompVal(PVAL vp, int n); virtual int CompVal(int i1, int i2); virtual void *GetValPtr(int n); virtual void *GetValPtrEx(int n); virtual int Find(PVAL vp); virtual int GetMaxLength(void); protected: // Members char* const &Chrp; // Pointer to char buffer PSZ Valp; // Used to make a zero ended value bool Blanks; // True for right filling with blanks bool Ci; // True if case insensitive int Long; // Length of each string }; // end of class CHRBLK /***********************************************************************/ /* Class STRBLK: represent a block of string pointers. */ /* Currently this class is used only by the DECODE scalar function */ /* and by the MyColumn function to store date formats. */ /***********************************************************************/ class STRBLK : public VALBLK { public: // Constructors STRBLK(PGLOBAL g, void *mp, int size, int type); // Implementation virtual void SetNull(int n, bool b) {if (b) {Strp[n] = NULL;}} virtual bool IsNull(int n) {return Strp[n] == NULL;} virtual void SetNullable(bool) {} // Always nullable virtual bool Init(PGLOBAL g, bool check); virtual int GetVlen(void) {return sizeof(PSZ);} virtual PSZ GetCharValue(int n) {return Strp[n];} virtual char GetTinyValue(int n); virtual uchar GetUTinyValue(int n); virtual short GetShortValue(int n); virtual ushort GetUShortValue(int n); virtual int GetIntValue(int n); virtual uint GetUIntValue(int n); virtual longlong GetBigintValue(int n); virtual ulonglong GetUBigintValue(int n); virtual double GetFloatValue(int n) {return atof(Strp[n]);} virtual char *GetCharString(char *, int n) {return Strp[n];} virtual void Reset(int n) {Strp[n] = NULL;} // Methods using VALBLK::SetValue; virtual void SetValue(PCSZ sp, int n); virtual void SetValue(const char *sp, uint len, int n); virtual void SetValue(PVAL valp, int n); virtual void SetValue(PVBLK pv, int n1, int n2); virtual void SetMin(PVAL valp, int n); virtual void SetMax(PVAL valp, int n); virtual void Move(int i, int j); virtual int CompVal(PVAL vp, int n); virtual int CompVal(int i1, int i2); virtual void *GetValPtr(int n); virtual void *GetValPtrEx(int n); virtual int Find(PVAL vp); virtual int GetMaxLength(void); // Specific void SetSorted(bool b) {Sorted = b;} protected: // Members PSZ* const &Strp; // Pointer to PSZ buffer bool Sorted; // Values are (semi?) sorted }; // end of class STRBLK /***********************************************************************/ /* Class DATBLK: represents a block of time stamp values. */ /***********************************************************************/ class DATBLK : public TYPBLK { public: // Constructor DATBLK(void *mp, int size); // Implementation virtual bool SetFormat(PGLOBAL g, PCSZ fmt, int len, int year = 0); virtual char *GetCharString(char *p, int n); // Methods using TYPBLK::SetValue; virtual void SetValue(PCSZ sp, int n); protected: // Members PVAL Dvalp; // Date value used to convert string }; // end of class DATBLK /***********************************************************************/ /* Class PTRBLK: represent a block of char pointers. */ /* Currently this class is used only by the ARRAY class to make and */ /* sort a list of char pointers. */ /***********************************************************************/ class PTRBLK : public STRBLK { friend class ARRAY; friend PVBLK AllocValBlock(PGLOBAL, void *, int, int, int, int, bool, bool, bool); protected: // Constructors PTRBLK(PGLOBAL g, void *mp, int size) : STRBLK(g, mp, size, TYPE_PCHAR) {} // Implementation // Methods using STRBLK::SetValue; using STRBLK::CompVal; virtual void SetValue(PCSZ p, int n) {Strp[n] = (char*)p;} virtual int CompVal(int i1, int i2); protected: // Members }; // end of class PTRBLK #endif // __VALBLK__H__