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/********************************************************************
* Description: _shm.h
* Purely local shared memory functions-- converting System V
* shared memory to POSIX shared memory required something
* intermediate in System V IPC that returned a file descriptor
* suitable for mmap(), and that something doesn't exist.
*
* Derived from a work by Fred Proctor & Will Shackleford
*
* Author:
* License: LGPL Version 2
* System: Linux
*
* Copyright (c) 2004 All rights reserved.
*
* Last change:
********************************************************************/
#ifndef _SHAREDMEM_H
#define _SHAREDMEM_H
#include <sys/types.h> /* key_t */
#include <stddef.h> /* size_t */
#ifndef KEY_T_DEFINED
#define KEY_T_DEFINED
#endif /* KEY_T_DEFINED */
typedef struct {
int id;
void *addr;
int create_errno;
size_t size;
int count;
int created;
int key;
char name[64];
} shm_t;
#ifdef __cplusplus
extern "C" {
#endif
extern shm_t *rcs_shm_open(key_t key, size_t size, int oflag,
/* int mode */ ...);
extern int rcs_shm_close(shm_t * shm);
extern int rcs_shm_delete(shm_t * shm);
extern int rcs_shm_nattch(shm_t * shm);
#ifdef __cplusplus
}
#endif
#endif
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