xbase.h

一个通讯管理机的源代码。比较好用。推荐

/***************************************************************************
                          xbase.h  -  description
                             -------------------
    begin                : Thu Jan 17 2002
    copyright            : (C) 2002 by 
    email                : 
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
/*  $Id: xbase.h,v 1.19 2001/06/26 23:43:11 dbryson Exp $

    Xbase project source code

    This file contains a header file for the xbXBase class, which is the
    base class for using the Xbase DBMS library.

    Copyright (C) 1997  StarTech, Gary A. Kunkel   

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Contact:

      Mail:

        Technology Associates, Inc.
        XBase Project
        1455 Deming Way #11
        Sparks, NV 89434
        USA

      Email:

        [e-mail]

      See our website at:

        xdb.sourceforge.net


    V 1.0    10/10/97   - Initial release of software
    V 1.5    1/2/98     - Added memo field support
    V 1.6a   4/1/98     - Added expression support
    V 1.6b   4/8/98     - Numeric index keys
    V 1.8.0a 1/27/99    - Added DisplayError method
*/

#ifndef __XB_XBASE_H__
#define __XB_XBASE_H__

#ifdef __GNUG__
#pragma interface
#endif

#ifdef __WIN32__
#include "xbconfigw32.h"
#else
#include "xbconfig.h"
#endif

//
//  Identify ourselves
//
#define XDB_VERSION        "2.0.0"
#define XBASE_VERSION        "2.0.0"

#include <string.h>

#if defined(__WIN32__)

#include "windows.h"

// ripped from wxWindows

// _declspec works in BC++ 5 and later, as well as VC++
#if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__GNUC__)
#  ifdef XBMAKINGDLL
#    define XBDLLEXPORT __declspec( dllexport )
#    define XBDLLEXPORT_DATA(type) __declspec( dllexport ) type
#    define XBDLLEXPORT_CTORFN
#  elif defined(XBUSINGDLL)
#    define XBDLLEXPORT __declspec( dllimport )
#    define XBDLLEXPORT_DATA(type) __declspec( dllimport ) type
#    define XBDLLEXPORT_CTORFN
#  else
#    define XBDLLEXPORT
#    define XBDLLEXPORT_DATA(type) type
#    define XBDLLEXPORT_CTORFN
#  endif

#else

#  define XBDLLEXPORT
#  define XBDLLEXPORT_DATA(type) type
#  define XBDLLEXPORT_CTORFN
#endif

#else // !Windows
#  define XBDLLEXPORT
#  define XBDLLEXPORT_DATA(type) type
#  define XBDLLEXPORT_CTORFN
#endif // Win/!Win

#include "xtypes.h"
#include "retcodes.h"
#include "xdate.h"

#include "xbstring.h"

#if defined(XB_EXPRESSIONS)
#include "exp.h"
#endif

/*! \file xbase.h
*/

class XBDLLEXPORT xbDbf;

//! xbDbList struct
/*!
*/

struct XBDLLEXPORT xbDbList{
   xbDbList * NextDbf;
   char * DbfName;
   xbDbf  * dbf;
};

//! xbXBase class
/*!
*/

#if defined(XB_EXPRESSIONS)
class XBDLLEXPORT xbXBase : public xbExpn {
#else
class XBDLLEXPORT xbXBase : public xbDate {
#endif

protected:
   xbDbList * DbfList;
   xbDbList * FreeDbfList;
   xbShort EndianType;                     /* B = Big Endian, L = Little Endian */

public:
   ~xbXBase();
   xbXBase();
   xbShort  AddDbfToDbfList(xbDbf *d, const char *DatabaseName);
   xbDbf *  GetDbfPtr( const char *Name );
   xbShort  DirectoryExistsInName( const char *Name );
   xbShort  GetEndianType( void ) { return EndianType; }
   void     DisplayError( const xbShort ErrorCode ) const;
   static const char* GetErrorMessage( const xbShort ErrorNo );

   /* next 6 routines handle both big endian and little endian machines */
   xbDouble GetDouble( const char *p );
   xbLong   GetLong  ( const char *p );
   xbULong  GetULong ( const char *p );
   xbShort  GetShort ( const char *p );
   void   PutLong  ( char *p, const xbLong   l );
   void   PutShort ( char *p, const xbShort  s );
   void   PutULong ( char *p, const xbULong  l );
   void   PutUShort( char *p, const xbUShort s );
   void   PutDouble( char *p, const xbDouble d );

   xbShort  RemoveDbfFromDbfList( xbDbf * );
};

#include "dbf.h"

#if defined(XB_INDEX_ANY)
#include "index.h"
#endif

#ifdef XB_INDEX_NDX
#include "ndx.h"
#endif

#ifdef XB_INDEX_NTX
#include "ntx.h"
#endif

#if defined(XB_FILTERS) && !defined(XB_INDEX_ANY)
#error XB_FILTERS cant be used without index support
#elif defined(XB_FILTERS)
#include "xbfilter.h"
#endif

#ifdef XB_LOCKING_ON

#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif

#ifdef HAVE_SYS_LOCKING_H
#include <sys/locking.h>
#define F_SETLKW 0
#define F_SETLK  1
#define F_RDLCK  2
#define F_WRLCK  3
#define F_UNLCK  4
#endif

#else
enum { F_SETLKW = 0, F_WRLCK = 0 };
#endif

#ifdef XB_HTML
#include "html.h"
#endif

#endif		// __XB_XBASE_H__