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/* xbssv.h
XBase64 Software Library
Copyright (c) 1997,2003,2014,2022 Gary A Kunkel
The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.
Email Contact:
XDB-devel@lists.sourceforge.net
XDB-users@lists.sourceforge.net
*/
#ifndef __XB_XBSSV_H__
#define __XB_XBSSV_H__
#ifdef CMAKE_COMPILER_IS_GNUCC
#pragma interface
#endif
namespace xb{
class XBDLLEXPORT xbXBase;
///@cond DOXYOFF
struct XBDLLEXPORT xbErrorMessage{
xbInt16 iErrorNo;
const char *sErrorText;
};
///@endcond DOXYOFF
//! @brief Class for handling shared system variables.
/*!
This class defines static variables which are referenced across class instances.
This class is designed to have the variables set when the xbXBase class constructor is called
(xbXBase is a derived class). The xbXbase class is designed to be called first in an application
programs, and it is only called once. The static values in this class are typically initialized at
program startup and don't require additional updates.
*/
// By design, DBase allows mutliple records in a table all having the same key, but only one entry in a unique index
// XB_HALT_ON_DUP_KEY tells the library to not allow appending records which generate duplicate keys in a unique index
//
#if defined (XB_NDX_SUPPORT) || defined (XB_MDX_SUPPORT)
#define XB_HALT_ON_DUPKEY 0
#define XB_EMULATE_DBASE 1
#endif
class XBDLLEXPORT xbSsv{
public:
xbSsv();
const static char *ErrorCodeText[];
void DisplayError ( xbInt16 ErrorCode ) const;
xbString& GetDefaultDateFormat () const;
xbString& GetDataDirectory () const;
xbInt16 GetEndianType () const;
const char *GetErrorMessage ( xbInt16 ErrorCode ) const;
void SetDataDirectory ( const xbString &sDataDirectory );
void SetDefaultDateFormat ( const xbString &sDefaultDateFormat );
xbBool BitSet ( unsigned char c, xbInt16 iBitNo ) const;
#ifdef XB_DEBUG_SUPPORT
void BitDump ( unsigned char c ) const;
void BitDump ( char c ) const;
#endif
xbBool GetDefaultAutoCommit () const;
void SetDefaultAutoCommit ( xbBool bDefaultAutoCommit );
xbString& GetDefaultLogDirectory () const;
xbString& GetDefaultLogFileName () const;
void SetDefaultLogDirectory ( const xbString &sDefaultLogDirectory );
xbBool GetMultiUser () const;
void SetMultiUser ( xbBool bMultiUser );
#if defined (XB_NDX_SUPPORT) || defined (XB_MDX_SUPPORT)
xbInt16 GetUniqueKeyOpt () const;
xbInt16 SetUniqueKeyOpt ( xbInt16 iUniqueKeyOpt );
#endif
#ifdef XB_LOCKING_SUPPORT
xbInt16 GetDefaultLockRetries () const;
void SetDefaultLockRetries ( xbInt16 iRetryCount );
xbInt32 GetDefaultLockWait () const;
void SetDefaultLockWait ( xbInt32 lRetryWait );
xbInt16 GetDefaultLockFlavor () const;
void SetDefaultLockFlavor ( xbInt16 iLockFlavor );
xbBool GetDefaultAutoLock () const;
void SetDefaultAutoLock ( xbBool bAutoLock );
void EnableDefaultAutoLock ();
void DisableDefaultAutoLock ();
#endif
#ifdef XB_MDX_SUPPORT
xbInt16 GetCreateMdxBlockSize() const;
xbInt16 SetCreateMdxBlockSize( xbInt16 ulBlockSize );
#endif
protected:
void SetEndianType ();
static xbInt16 iEndianType; // B=Big Endian L=Little Endian
static xbString sNullString; // Null String
private:
static xbString sDefaultDateFormat;
static xbString sDataDirectory; //Data file directory
#ifdef XB_LOGGING_SUPPORT
static xbString sDefaultLogDirectory; //Default location to store log files
static xbString sDefaultLogFileName; //Default LogFileName
#endif
static xbInt16 iDefaultFileVersion; // 3 = DBase 3
// 4 = DBase 4
// default version used in CreateTable command
// can be over ridden at the Xbase level, or table level
// Different versions can be open simultaneously
static xbBool bDefaultAutoCommit; // Default dbf auto commit switch
static xbBool bMultiUser; // True if multi user mode is turned on
// Turn this off for better performance in single user mode
// This needs to be turned on or off before any data tables are opened
// turning this on after tables are opened, can result in out of date
// file buffers if multiple users are sharing the files
#ifdef XB_LOCKING_SUPPORT
static xbInt32 lDefaultLockWait; // Number of milliseconds between lock retries
static xbInt16 iDefaultLockRetries; // Number of times to retry a lock before conceding
static xbInt16 bDefaultAutoLock; // Autolocking enabled?
static xbInt16 iDefaultLockFlavor; // 1 = DBase
// 2 = Clipper - not developed yet
// 3 = FoxPro - not developed yet
// 9 = Xbase64 - not developed yet
#endif
#if defined (XB_NDX_SUPPORT) || defined (XB_MDX_SUPPORT)
static xbInt16 iUniqueKeyOpt;
// is one of:
// XB_HALT_ON_DUPKEY
// XB_EMULATE_DBASE
#endif
#ifdef XB_MDX_SUPPORT
static xbInt16 iCreateMdxBlockSize; // System level Mdx Block Size
#endif // XB_MDX_SUPPORT
};
} /* namespace xb */
#endif /* __XB_XBSSV_H__ */
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