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mariadb/storage/connect/myutil.cpp
Oleksandr Byelkin 7841a7eb09 Merge branch '10.3' into 10.4
2021-07-31 22:59:58 +02:00

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/************** MyUtil C++ Program Source Code File (.CPP) **************/
/* PROGRAM NAME: MYUTIL */
/* ------------- */
/* Version 1.2 */
/* */
/* Author Olivier BERTRAND 2014 */
/* */
/* WHAT THIS PROGRAM DOES: */
/* ----------------------- */
/* It contains utility functions to convert data types. */
/* It can optionally use the embedded MySQL library. */
/* */
/************************************************************************/
#include "my_global.h"
#include <mysql.h>
#if defined(_WIN32)
//#include <windows.h>
#else // !_WIN32
#include "osutil.h"
#endif // !_WIN32
#include "global.h"
#include "plgdbsem.h"
//#include "value.h"
//#include "valblk.h"
#include "myutil.h"
#define DLL_EXPORT // Items are exported from this DLL
//extern "C" int xconv;
TYPCONV GetTypeConv(void);
/************************************************************************/
/* Convert from MySQL type name to PlugDB type number */
/************************************************************************/
int MYSQLtoPLG(char *typname, char *var)
{
int type;
TYPCONV xconv = GetTypeConv();
if (!stricmp(typname, "int") || !stricmp(typname, "mediumint") ||
!stricmp(typname, "integer"))
type = TYPE_INT;
else if (!stricmp(typname, "smallint"))
type = TYPE_SHORT;
else if (!stricmp(typname, "char") || !stricmp(typname, "varchar") ||
!stricmp(typname, "enum") || !stricmp(typname, "set"))
type = TYPE_STRING;
else if (!stricmp(typname, "double") || !stricmp(typname, "float") ||
!stricmp(typname, "real"))
type = TYPE_DOUBLE;
else if (!stricmp(typname, "decimal") || !stricmp(typname, "numeric"))
type = TYPE_DECIM;
else if (!stricmp(typname, "date") || !stricmp(typname, "datetime") ||
!stricmp(typname, "time") || !stricmp(typname, "timestamp") ||
!stricmp(typname, "year"))
type = TYPE_DATE;
else if (!stricmp(typname, "bigint") || !stricmp(typname, "longlong"))
type = TYPE_BIGINT;
else if (!stricmp(typname, "tinyint"))
type = TYPE_TINY;
else if (!stricmp(typname, "text") && var) {
switch (xconv) {
case TPC_YES:
type = TYPE_STRING;
*var = 'X';
break;
case TPC_SKIP:
*var = 'K';
/* falls through */
default: // TPC_NO
type = TYPE_ERROR;
} // endswitch xconv
return type;
} else
type = TYPE_ERROR;
if (var) {
if (type == TYPE_DATE) {
// This is to make the difference between temporal values
if (!stricmp(typname, "date"))
*var = 'D';
else if (!stricmp(typname, "datetime"))
*var = 'A';
else if (!stricmp(typname, "timestamp"))
*var = 'S';
else if (!stricmp(typname, "time"))
*var = 'T';
else if (!stricmp(typname, "year"))
*var = 'Y';
} else if (type == TYPE_STRING) {
if (!stricmp(typname, "varchar"))
// This is to make the difference between CHAR and VARCHAR
*var = 'V';
} else if (type == TYPE_ERROR && xconv == TPC_SKIP)
*var = 'K';
else
*var = 0;
} // endif var
return type;
} // end of MYSQLtoPLG
/************************************************************************/
/* Convert from PlugDB type to MySQL type number */
/************************************************************************/
enum enum_field_types PLGtoMYSQL(int type, bool dbf, char v)
{
enum enum_field_types mytype;
switch (type) {
case TYPE_INT:
mytype = MYSQL_TYPE_LONG;
break;
case TYPE_SHORT:
mytype = MYSQL_TYPE_SHORT;
break;
case TYPE_DOUBLE:
mytype = MYSQL_TYPE_DOUBLE;
break;
case TYPE_DATE:
mytype = (dbf) ? MYSQL_TYPE_DATE :
(v == 'S') ? MYSQL_TYPE_TIMESTAMP :
(v == 'D') ? MYSQL_TYPE_NEWDATE :
(v == 'T') ? MYSQL_TYPE_TIME :
(v == 'Y') ? MYSQL_TYPE_YEAR : MYSQL_TYPE_DATETIME;
break;
case TYPE_STRING:
mytype = (v) ? MYSQL_TYPE_VARCHAR : MYSQL_TYPE_STRING;
break;
case TYPE_BIGINT:
mytype = MYSQL_TYPE_LONGLONG;
break;
case TYPE_TINY:
mytype = MYSQL_TYPE_TINY;
break;
case TYPE_DECIM:
#if !defined(ALPHA)
mytype = MYSQL_TYPE_NEWDECIMAL;
#else // ALPHA
mytype = MYSQL_TYPE_DECIMAL;
#endif // ALPHA
break;
default:
mytype = MYSQL_TYPE_NULL;
} // endswitch mytype
return mytype;
} // end of PLGtoMYSQL
/************************************************************************/
/* Convert from PlugDB type to MySQL type name */
/************************************************************************/
const char *PLGtoMYSQLtype(int type, bool dbf, char v)
{
switch (type) {
case TYPE_INT: return "INT";
case TYPE_SHORT: return "SMALLINT";
case TYPE_DOUBLE: return "DOUBLE";
case TYPE_DATE: return dbf ? "DATE" :
(v == 'S') ? "TIMESTAMP" :
(v == 'D') ? "DATE" :
(v == 'T') ? "TIME" :
(v == 'Y') ? "YEAR" : "DATETIME";
case TYPE_STRING: return v ? "VARCHAR" : "CHAR";
case TYPE_BIGINT: return "BIGINT";
case TYPE_TINY: return "TINYINT";
case TYPE_DECIM: return "DECIMAL";
default: return (v) ? "VARCHAR" : "CHAR";
} // endswitch mytype
} // end of PLGtoMYSQLtype
/************************************************************************/
/* Convert from MySQL type to PlugDB type number */
/************************************************************************/
int MYSQLtoPLG(int mytype, char *var)
{
int type, xconv = GetTypeConv();
switch (mytype) {
case MYSQL_TYPE_SHORT:
type = TYPE_SHORT;
break;
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_ENUM: // ???
type = TYPE_INT;
break;
case MYSQL_TYPE_LONGLONG:
type = TYPE_BIGINT;
break;
case MYSQL_TYPE_TINY:
type = TYPE_TINY;
break;
case MYSQL_TYPE_DECIMAL:
#if !defined(ALPHA)
case MYSQL_TYPE_NEWDECIMAL:
#endif // !ALPHA)
type = TYPE_DECIM;
break;
case MYSQL_TYPE_FLOAT:
case MYSQL_TYPE_DOUBLE:
type = TYPE_DOUBLE;
break;
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_DATETIME:
case MYSQL_TYPE_YEAR:
case MYSQL_TYPE_TIME:
type = TYPE_DATE;
break;
case MYSQL_TYPE_VAR_STRING:
#if !defined(ALPHA)
case MYSQL_TYPE_VARCHAR:
#endif // !ALPHA)
case MYSQL_TYPE_STRING:
type = (*var == 'B') ? TYPE_BIN : TYPE_STRING;
break;
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
if (var) {
switch (xconv) {
case TPC_YES:
if (*var != 'B') {
// This is a TEXT column
type = TYPE_STRING;
*var = 'X';
} else
type = TYPE_BIN;
break;
case TPC_SKIP:
*var = 'K'; // Skip
/* falls through */
default: // TPC_NO
type = TYPE_ERROR;
} // endswitch xconv
return type;
} // endif var
/* falls through */
default:
type = TYPE_ERROR;
} // endswitch mytype
if (var) switch (mytype) {
// This is to make the difference between CHAR and VARCHAR
#if !defined(ALPHA)
case MYSQL_TYPE_VARCHAR:
#endif // !ALPHA)
case MYSQL_TYPE_VAR_STRING: *var = 'V'; break;
// This is to make the difference between temporal values
case MYSQL_TYPE_TIMESTAMP: *var = 'S'; break;
case MYSQL_TYPE_DATE: *var = 'D'; break;
case MYSQL_TYPE_DATETIME: *var = 'A'; break;
case MYSQL_TYPE_YEAR: *var = 'Y'; break;
case MYSQL_TYPE_TIME: *var = 'T'; break;
default: *var = 0;
} // endswitch mytype
return type;
} // end of MYSQLtoPLG
/************************************************************************/
/* Returns the format corresponding to a MySQL date type number. */
/************************************************************************/
PCSZ MyDateFmt(int mytype)
{
PCSZ fmt;
switch (mytype) {
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_DATETIME:
fmt = "YYYY-MM-DD hh:mm:ss";
break;
case MYSQL_TYPE_DATE:
fmt = "YYYY-MM-DD";
break;
case MYSQL_TYPE_YEAR:
fmt = "YYYY";
break;
case MYSQL_TYPE_TIME:
fmt = "hh:mm:ss";
break;
default:
fmt = NULL;
} // endswitch mytype
return fmt;
} // end of MyDateFmt
/************************************************************************/
/* Returns the format corresponding to a MySQL date type name. */
/************************************************************************/
PCSZ MyDateFmt(char *typname)
{
PCSZ fmt;
if (!stricmp(typname, "datetime") || !stricmp(typname, "timestamp"))
fmt = "YYYY-MM-DD hh:mm:ss";
else if (!stricmp(typname, "date"))
fmt = "YYYY-MM-DD";
else if (!stricmp(typname, "year"))
fmt = "YYYY";
else if (!stricmp(typname, "time"))
fmt = "hh:mm:ss";
else
fmt = NULL;
return fmt;
} // end of MyDateFmt
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