/****************************************************************************/
// SQLMISC.H  v1.1 - 25 10 1990
/****************************************************************************/
/*                                                                          */
/*   Copyright (c) 1989-1993 Bernhard Strassl                               */
/*       Institute for Applied Computer Science and Information Systems     */
/*       University of Vienna, Austria                                      */
/*                                                                          */
/*   See file COPYRIGHT in this directory for details. If this file is      */
/*   missing please mail to bernhard@ani.univie.ac.at                       */
/****************************************************************************/

#ifndef _CB_SQLMISC_INCLUDED
#define _CB_SQLMISC_INCLUDED 1

// misc. classes supporting SqlSvr and SqlMgr

#include <sqlusr.h>
#include <cbdefs.h>
#include <stream.h>

void init_cb_data();
void init_parser_constants();

class SqlInfo
{
friend class BindInfo;
friend class QryInfo;
friend class CursorInfo;
friend class SqlDescr;
friend testSvr();

public:
	virtual void dump()     { cerr << "no dump implemented.\n"; }
};

class BindInfo : private SqlInfo
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend class SqlParser;
friend testSvr();

	short varIndex;
	void* data;
	short type;
	int length;
	short scale;
	short retLength;
	short retCode;
	void* sysData;
        short* indicator;
        bool  indp_follows;

	BindInfo(short, void*, short, int = 0, int = 0,
		 bool = FALSE, short* = NULL);
	void setBuffer(void*, short* = NULL);
	void setIndp(short*);
        void requireIndBuf()    { indp_follows = TRUE; }

public:
	short dataType()	{ return type; }
	void* dataPtr()		{ return data; }
        short* indPtr()         { return indicator; }
        bool  indpFollows()     { return indp_follows; }

	void dump()     { cerr << "BindInfo vi " << varIndex << " t " << type << " addr " << long(data) <<
				  " l " << length << " rl " << retLength << " rc " << retCode << "\n"; }
};

class QryInfo : private SqlInfo
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend testSvr();

	short colIndex;
	short type;
	int dataLength;
	char* nameBuff;
	short prec;
	short scale;

	QryInfo()       { nameBuff = (char* )NULL; colIndex = type = dataLength = prec = scale = 0; }
	~QryInfo()      { if(nameBuff) delete nameBuff; }
public:
	void dump()     { cerr << "QryInfo ci " << colIndex << " name: " << nameBuff << " t " << type <<
				  " l " << dataLength << " p " << prec << "\n"; }

};

class CursorInfo : private SqlInfo
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend class CursorDescr;
friend testSvr();

	int cndx;
	int cstat;
	bool active;
	void* sysinfo;

	CursorInfo();
public:
	void dump()     { cerr << "CursorInfo cndx " << cndx << " cstatus " << cstat <<
				  " active " << active << "\n"; }
};

class SqlDescr
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend class BindDescr;
friend class QryDescr;
friend class CursorDescr;
friend class SysDescr;      // can be defined in server implementation
friend class SqlParser;
friend class PprDescr;
friend class ParagraphDescr;
friend class Page;
friend class Document;
friend class Printer;
friend testSvr();

	int itemCount;
	int itemMax;
	SqlInfo** items;

	SqlDescr()      { itemCount = 0; itemMax = 10;
			  items = new SqlInfo*[itemMax]; }
	~SqlDescr();

	void addInfo(SqlInfo* i) 	{ items[itemCount++] = i;
					  checkSize(); }
	void checkSize();
	SqlInfo* infoAt(int i);
	SqlInfo* infoNext(int& i)       { return(infoAt(i++)); }
public:
	int size()                      { return(itemCount); }
	void dump();
};

class BindDescr : public SqlDescr
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend class SqlParser;
friend testSvr();

	BindDescr()     {}
	~BindDescr()    {}

	BindInfo* at(int i)     { return((BindInfo* )infoAt(i)); }
	BindInfo* next(int& i)  { return((BindInfo* )infoNext(i)); }
};

class QryDescr : public SqlDescr
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend testSvr();

	QryDescr()     {}
	~QryDescr()    {}

	QryInfo* at(int i)     { return((QryInfo* )infoAt(i)); }
	QryInfo* next(int& i)  { return((QryInfo* )infoNext(i)); }
};

class CursorDescr : public SqlDescr
{
friend class SqlSvr;
friend class SqlMgr;
friend class SqlObjectMgr;
friend class CursorInfo;
friend testSvr();

public:
	CursorDescr()     {}
	~CursorDescr()    {}
private:

	void addCursor(CursorInfo*);
	CursorInfo* at(int i)     { return((CursorInfo* )infoAt(i)); }
	CursorInfo* next(int& i)  { return((CursorInfo* )infoNext(i)); }
	CursorInfo* getUnused();
};


#endif