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-rw-r--r--storage/connect/xobject.h278
1 files changed, 159 insertions, 119 deletions
diff --git a/storage/connect/xobject.h b/storage/connect/xobject.h
index 1621b4e82ff..bb7b0150ed8 100644
--- a/storage/connect/xobject.h
+++ b/storage/connect/xobject.h
@@ -1,119 +1,159 @@
-/*************** Xobject H Declares Source Code File (.H) **************/
-/* Name: XOBJECT.H Version 2.4 */
-/* */
-/* (C) Copyright to the author Olivier BERTRAND 1998-2014 */
-/* */
-/* This file contains the XOBJECT and derived classes declares. */
-/***********************************************************************/
-
-#ifndef __XOBJECT__H
-#define __XOBJECT__H
-
-/***********************************************************************/
-/* Include required application header files */
-/* block.h is header containing Block global declarations. */
-/***********************************************************************/
-#include "block.h"
-#include "valblk.h" // includes value.h
-
-/***********************************************************************/
-/* Types used in some class definitions. */
-/***********************************************************************/
-//typedef struct _tabdesc *PTABD; // For friend setting
-
-/***********************************************************************/
-/* The pointer to the one and only needed void object. */
-/***********************************************************************/
-extern PXOB const pXVOID;
-
-/***********************************************************************/
-/* Class XOBJECT is the base class for all classes that can be used */
-/* in evaluation operations: FILTER, EXPRESSION, SCALF, FNC, COLBLK, */
-/* SELECT, FILTER as well as all the constant object types. */
-/***********************************************************************/
-class DllExport XOBJECT : public BLOCK {
- public:
- XOBJECT(void) {Value = NULL; Constant = false;}
-
- // Implementation
- PVAL GetValue(void) {return Value;}
- bool IsConstant(void) {return Constant;}
- virtual int GetType(void) {return TYPE_XOBJECT;}
- virtual int GetResultType(void) {return TYPE_VOID;}
- virtual int GetKey(void) {return 0;}
-#if defined(_DEBUG)
- virtual void SetKey(int k) {assert(false);}
-#else // !_DEBUG
- virtual void SetKey(int k) {} // Only defined for COLBLK
-#endif // !_DEBUG
- virtual int GetLength(void) = 0;
- virtual int GetLengthEx(void) = 0;
- virtual PSZ GetCharValue(void);
- virtual short GetShortValue(void);
- virtual int GetIntValue(void);
- virtual double GetFloatValue(void);
- virtual int GetScale(void) = 0;
-
- // Methods
- virtual void Reset(void) {}
- virtual bool Compare(PXOB) = 0;
- virtual bool Init(PGLOBAL) {return false;}
- virtual bool Eval(PGLOBAL) {return false;}
- virtual bool SetFormat(PGLOBAL, FORMAT&) = 0;
-
- protected:
- PVAL Value; // The current value of the object.
- bool Constant; // true for an object having a constant value.
- }; // end of class XOBJECT
-
-/***********************************************************************/
-/* Class XVOID: represent a void (null) object. */
-/* Used to represent a void parameter for count(*) or for a filter. */
-/***********************************************************************/
-class DllExport XVOID : public XOBJECT {
- public:
- XVOID(void) {Constant = true;}
-
- // Implementation
- virtual int GetType(void) {return TYPE_VOID;}
- virtual int GetLength(void) {return 0;}
- virtual int GetLengthEx(void) {return 0;}
- virtual PSZ GetCharValue(void) {return NULL;}
- virtual int GetIntValue(void) {return 0;}
- virtual double GetFloatValue(void) {return 0.0;}
- virtual int GetScale() {return 0;}
-
- // Methods
- virtual bool Compare(PXOB xp) {return xp->GetType() == TYPE_VOID;}
- virtual bool SetFormat(PGLOBAL, FORMAT&) {return true;}
- }; // end of class XVOID
-
-
-/***********************************************************************/
-/* Class CONSTANT: represents a constant XOBJECT of any value type. */
-/* Note that the CONSTANT class is a friend of the VALUE class; */
-/***********************************************************************/
-class DllExport CONSTANT : public XOBJECT {
- public:
- CONSTANT(PGLOBAL g, void *value, short type);
- CONSTANT(PGLOBAL g, int n);
- CONSTANT(PVAL valp) {Value = valp; Constant = true;}
-
- // Implementation
- virtual int GetType(void) {return TYPE_CONST;}
- virtual int GetResultType(void) {return Value->Type;}
- virtual int GetLength(void) {return Value->GetValLen();}
- virtual int GetScale() {return Value->GetValPrec();}
- virtual int GetLengthEx(void);
-
- // Methods
- virtual bool Compare(PXOB xp);
- virtual bool SetFormat(PGLOBAL g, FORMAT& fmt)
- {return Value->SetConstFormat(g, fmt);}
- void Convert(PGLOBAL g, int newtype);
- void SetValue(PVAL vp) {Value = vp;}
- virtual void Print(PGLOBAL g, FILE *, uint);
- virtual void Print(PGLOBAL g, char *, uint);
- }; // end of class CONSTANT
-
-#endif
+/*************** Xobject H Declares Source Code File (.H) **************/
+/* Name: XOBJECT.H Version 2.4 */
+/* */
+/* (C) Copyright to the author Olivier BERTRAND 1998-2014 */
+/* */
+/* This file contains the XOBJECT and derived classes declares. */
+/***********************************************************************/
+
+#ifndef __XOBJECT__H
+#define __XOBJECT__H
+
+/***********************************************************************/
+/* Include required application header files */
+/* block.h is header containing Block global declarations. */
+/***********************************************************************/
+#include "block.h"
+#include "valblk.h" // includes value.h
+
+/***********************************************************************/
+/* Types used in some class definitions. */
+/***********************************************************************/
+typedef class STRING *PSTRG;
+
+/***********************************************************************/
+/* The pointer to the one and only needed void object. */
+/***********************************************************************/
+extern PXOB const pXVOID;
+
+/***********************************************************************/
+/* Class XOBJECT is the base class for all classes that can be used */
+/* in evaluation operations: FILTER, EXPRESSION, SCALF, FNC, COLBLK, */
+/* SELECT, FILTER as well as all the constant object types. */
+/***********************************************************************/
+class DllExport XOBJECT : public BLOCK {
+ public:
+ XOBJECT(void) {Value = NULL; Constant = false;}
+
+ // Implementation
+ PVAL GetValue(void) {return Value;}
+ bool IsConstant(void) {return Constant;}
+ virtual int GetType(void) {return TYPE_XOBJECT;}
+ virtual int GetResultType(void) {return TYPE_VOID;}
+ virtual int GetKey(void) {return 0;}
+#if defined(_DEBUG)
+ virtual void SetKey(int k) {assert(false);}
+#else // !_DEBUG
+ virtual void SetKey(int k) {} // Only defined for COLBLK
+#endif // !_DEBUG
+ virtual int GetLength(void) = 0;
+ virtual int GetLengthEx(void) = 0;
+ virtual PSZ GetCharValue(void);
+ virtual short GetShortValue(void);
+ virtual int GetIntValue(void);
+ virtual double GetFloatValue(void);
+ virtual int GetScale(void) = 0;
+
+ // Methods
+ virtual void Reset(void) {}
+ virtual bool Compare(PXOB) = 0;
+ virtual bool Init(PGLOBAL) {return false;}
+ virtual bool Eval(PGLOBAL) {return false;}
+ virtual bool SetFormat(PGLOBAL, FORMAT&) = 0;
+
+ protected:
+ PVAL Value; // The current value of the object.
+ bool Constant; // true for an object having a constant value.
+ }; // end of class XOBJECT
+
+/***********************************************************************/
+/* Class XVOID: represent a void (null) object. */
+/* Used to represent a void parameter for count(*) or for a filter. */
+/***********************************************************************/
+class DllExport XVOID : public XOBJECT {
+ public:
+ XVOID(void) {Constant = true;}
+
+ // Implementation
+ virtual int GetType(void) {return TYPE_VOID;}
+ virtual int GetLength(void) {return 0;}
+ virtual int GetLengthEx(void) {return 0;}
+ virtual PSZ GetCharValue(void) {return NULL;}
+ virtual int GetIntValue(void) {return 0;}
+ virtual double GetFloatValue(void) {return 0.0;}
+ virtual int GetScale() {return 0;}
+
+ // Methods
+ virtual bool Compare(PXOB xp) {return xp->GetType() == TYPE_VOID;}
+ virtual bool SetFormat(PGLOBAL, FORMAT&) {return true;}
+ }; // end of class XVOID
+
+
+/***********************************************************************/
+/* Class CONSTANT: represents a constant XOBJECT of any value type. */
+/* Note that the CONSTANT class is a friend of the VALUE class; */
+/***********************************************************************/
+class DllExport CONSTANT : public XOBJECT {
+ public:
+ CONSTANT(PGLOBAL g, void *value, short type);
+ CONSTANT(PGLOBAL g, int n);
+ CONSTANT(PVAL valp) {Value = valp; Constant = true;}
+
+ // Implementation
+ virtual int GetType(void) {return TYPE_CONST;}
+ virtual int GetResultType(void) {return Value->Type;}
+ virtual int GetLength(void) {return Value->GetValLen();}
+ virtual int GetScale() {return Value->GetValPrec();}
+ virtual int GetLengthEx(void);
+
+ // Methods
+ virtual bool Compare(PXOB xp);
+ virtual bool SetFormat(PGLOBAL g, FORMAT& fmt)
+ {return Value->SetConstFormat(g, fmt);}
+ void Convert(PGLOBAL g, int newtype);
+ void SetValue(PVAL vp) {Value = vp;}
+ virtual void Print(PGLOBAL g, FILE *, uint);
+ virtual void Print(PGLOBAL g, char *, uint);
+ }; // end of class CONSTANT
+
+/***********************************************************************/
+/* Class STRING handles variable length char strings. */
+/* It is mainly used to avoid buffer overrun. */
+/***********************************************************************/
+class DllExport STRING : public BLOCK {
+ public:
+ // Constructor
+ STRING(PGLOBAL g, uint n, PSZ str = NULL);
+
+ // Implementation
+ inline int GetLength(void) {return (int)Length;}
+ inline PSZ GetStr(void) {return Strp;}
+ inline uint32 GetSize(void) {return Size;}
+
+ // Methods
+ inline void Reset(void) {*Strp = 0;}
+ bool Set(PSZ s);
+ bool Set(char *s, uint n);
+ bool Append(PSZ s);
+ bool Append(STRING &str);
+ bool Append(char c);
+ bool Resize(uint n);
+ inline void Trim(void) {(void)Resize(Length + 1);}
+ inline void Chop(void) {if (Length) Strp[--Length] = 0;}
+ inline void RepLast(char c) {if (Length) Strp[Length-1] = c;}
+ inline void Truncate(uint n) {if (n < Length) {Strp[n] = 0; Length = n;}}
+
+ protected:
+ char *Realloc(uint len);
+ inline char *GetNext(void)
+ {return ((char*)G->Sarea)+((PPOOLHEADER)G->Sarea)->To_Free;}
+
+ // Members
+ PGLOBAL G; // To avoid parameter
+ PSZ Strp; // The char string
+ uint Length; // String length
+ uint Size; // Allocated size
+ char *Next; // Next alloc position
+ }; // end of class STRING
+
+#endif
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