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shm.hh

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#ifndef SHAREDMEM_HH
#define SHAREDMEM_HH

#include "rcs_defs.hh"          // RCS_EXPORT

extern "C"
{
#ifndef UNDER_CE
#include <sys/types.h>          /* key_t */
#include <stddef.h>             /* size_t */
#endif
#include "_shm.h"               /* shm_t */
}

#define RCS_SHAREDMEM_NOCREATE 0x00     /* just attach to existing sharedmem */
#define RCS_SHAREDMEM_CREATE 0x01       /* create sharedmem */

class RCS_EXPORT RCS_SHAREDMEM
{
public:
  RCS_SHAREDMEM (key_t key, size_t size, int oflag, int mode = 0);
   ~RCS_SHAREDMEM ();
  int nattch ();                /* how many processes are attached */
  int create_errno;             /* 0 or stored errno after shmget failed */
  void *addr;                   /* pointer to shared memory */
  int delete_totally;           /* Flag to clean the sharedmem completely */

private:
    shm_t * shm;
public:
  int created;

private:
    RCS_SHAREDMEM (RCS_SHAREDMEM & shm);        // Don't copy me.
};

#endif

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