#ifndef __SHM_LOADED
#define __SHM_LOADED
/****************************************************************************
**
**  <shm.h> - System V shared memory system calls
**
*****************************************************************************
**
**   Copyright 2012 Hewlett-Packard Development Company, L.P.
**
** Confidential computer software.  Valid license from HP and/or
** its subsidiaries required for possession, use, or copying.
**
** Consistent with FAR 12.211 and 12.212, Commercial Computer Software,
** Computer Software Documentation, and Technical Data for Commercial
** Items are licensed to the U.S. Government under vendor's standard
** commercial license.
**
** Neither HP nor any of its subsidiaries shall be liable for technical
** or editorial errors or omissions contained herein.  The information
** in this document is provided "as is" without warranty of any kind and
** is subject to change without notice.  The warranties for HP products
** are set forth in the express limited warranty statements accompanying
** such products.  Nothing herein should be construed as constituting an
** additional warranty.
**
*****************************************************************************
*/

#pragma __nostandard
#include <decc$types.h>
#ifdef __cplusplus
    extern "C" {
#endif

#if __INITIAL_POINTER_SIZE
#   pragma __pointer_size __save
#   pragma __pointer_size 64
#endif

#include <ipc.h>

#if !defined __PID_T  && !defined _DECC_V4_SOURCE
#   define __PID_T 1
    typedef __pid_t pid_t;
#endif
#if defined _XOPEN_SOURCE || !defined _POSIX_C_SOURCE
#   ifndef __TIME_T
#       define __TIME_T 1
#ifdef __NAMESPACE_STD
namespace std {
#endif
     typedef __time_t time_t;
#ifdef __NAMESPACE_STD
} /* namespace std */
     using std::time_t;
#endif
#   endif
#endif

#if !defined __SIZE_T  && !defined _DECC_V4_SOURCE
#   define __SIZE_T 1
#ifdef __NAMESPACE_STD
namespace std {
#endif
    typedef __size_t size_t;
#ifdef __NAMESPACE_STD
} /* namespace std */
    using std::size_t;
#endif
#endif

/* Flags for `shmat'.  */
#define SHM_RDONLY      010000          /* attach read-only else read-write */
#define SHM_RND         020000          /* round attach address to SHMLBA */

/* Segment low boundary address multiple. */
#define SHMLBA		0X2000

/* Type to count number of attaches.  */
typedef unsigned long int shmatt_t;

/*data structure used to store shared memory details*/ 
struct shmid_ds {
	struct 	ipc_perm shm_perm;		/*permissions structure*/
	size_t 	shm_segsz;			/*size of memory segment in bytes*/
	pid_t 	shm_lpid;			/*Process ID of last memory operation*/
	pid_t 	shm_cpid;			/*Process ID of segment creator*/
	shmatt_t   shm_nattch;			/*Number of current attaches*/
	time_t	shm_atime;			/*time of last shmat()*/
	time_t	shm_dtime;			/*time of last shmdt()*/ 
	time_t	shm_ctime;			/*time of last change */
};

/* shared memory get operation */
int shmget(key_t key, size_t size, int shmflg);

/*shared memory attach operation*/
void* shmat(int shmid,const void *shmaddr,int shmflg);

/* shared memory control operations */
int shmctl(int shmid,  int cmd, struct shmid_ds *buf);

/* shared memory detach operations */
int shmdt(const void *shmaddr);

/*
**  Restore the users pointer context
*/
#if __INITIAL_POINTER_SIZE
#   pragma __pointer_size __restore
#endif

#ifdef __cplusplus
    }
#endif
#pragma __standard    
#endif  /* __SHM_LOADED */