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sharedmemc.h

Go to the documentation of this file.

/*
Copyright (C) 1999  Carsten Winkelholz

Address:  FGAN Forschungsgesellschaft f�r Angewandte Naturwissenschaften e. V.
      Neuenahrer Str. 20
      D - 53343 Wachtberg
      
Email:    winkelholz@fgan.de

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.

This program 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 General Public License for more details.

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


#ifndef SHAREDMEMC_H
#define SHAREDMEMC_H

#include "oaw/misc/stringc.h"

#ifdef _WIN32
#ifdef _AFXDLL
#include <afx.h>
#else
#include <windows.h>
#endif
#else
#include <sys/types.h>
#define HANDLE int
#endif

#include "../oawconfig.h"

OAW_BEGIN_NAMESPACE

class OAW_DLLMAPPING SharedMemC{
public:
  SharedMemC();
  
  SharedMemC(StringC, long);
  SharedMemC(const SharedMemC& shMem);
  virtual ~SharedMemC();
  char* Create(StringC, long);
  char* Open(StringC);
  char* ReOpen();
  inline short SizeChanged();
  long GetSize();
  
  inline char& operator [](long i){
    return m_buf[sizeof(long)+i];
  }
  inline char* GetBuffer(){return &m_buf[sizeof(long)];}
  
  const SharedMemC& operator = (const SharedMemC&);
private:

  char* m_buf;
  long m_size;
  HANDLE m_hMap;
  StringC m_name;
#ifndef _Win32
  short m_owner;
#endif
  
};

OAW_END_NAMESPACE


#endif

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