diff options
Diffstat (limited to 'storage/connect/valblk.h')
| -rw-r--r-- | storage/connect/valblk.h | 73 |
1 files changed, 67 insertions, 6 deletions
diff --git a/storage/connect/valblk.h b/storage/connect/valblk.h index a9b1debe098..654db0b57b7 100644 --- a/storage/connect/valblk.h +++ b/storage/connect/valblk.h @@ -18,11 +18,41 @@ /***********************************************************************/ /* Utility used to allocate value blocks. */ /***********************************************************************/ -DllExport PVBLK AllocValBlock(PGLOBAL, void*, int, int, int, int, +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 { @@ -78,6 +108,8 @@ class VALBLK : public BLOCK { virtual void SetValue(char *sp, uint len, int n) {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; @@ -153,6 +185,8 @@ class TYPBLK : public VALBLK { {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); @@ -203,6 +237,8 @@ class CHRBLK : public VALBLK { virtual void SetValue(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); @@ -213,11 +249,11 @@ class CHRBLK : public VALBLK { 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 + 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 /***********************************************************************/ @@ -254,6 +290,8 @@ class STRBLK : public VALBLK { virtual void SetValue(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); @@ -291,5 +329,28 @@ class DATBLK : public TYPBLK<int> { 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) {} + + // Implementation + + // Methods + virtual void SetValue(PSZ p, int n) {Strp[n] = p;} + virtual int CompVal(int i1, int i2); + + protected: + // Members + }; // end of class PTRBLK + #endif // __VALBLK__H__ |