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#ifndef _SYS_IPC_H
#define _SYS_IPC_H
#include <sys/cdefs.h>
#include <sys/types.h>
#define SEMOP 1
#define SEMGET 2
#define SEMCTL 3
#define MSGSND 11
#define MSGRCV 12
#define MSGGET 13
#define MSGCTL 14
#define SHMAT 21
#define SHMDT 22
#define SHMGET 23
#define SHMCTL 24
#define IPC_PRIVATE ((key_t) 0)
#define IPC_CREAT 00001000 /* create if key is nonexistent */
#define IPC_EXCL 00002000 /* fail if key exists */
#define IPC_NOWAIT 00004000 /* return error on wait */
#define IPC_RMID 0 /* remove resource */
#define IPC_SET 1 /* set ipc_perm options */
#define IPC_STAT 2 /* get ipc_perm options */
#define IPC_INFO 3 /* see ipcs */
/*
* Version flags for semctl, msgctl, and shmctl commands
* These are passed as bitflags or-ed with the actual command
*/
#define IPC_OLD 0 /* Old version (no 32-bit UID support on many
architectures) */
#define IPC_64 0x0100 /* New version (support 32-bit UIDs, bigger
message sizes, etc. */
struct ipc_perm {
key_t key;
uid_t uid;
gid_t gid;
uid_t cuid;
gid_t cgid;
mode_t mode;
unsigned short seq;
};
#endif
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