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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef _SYS_SEM_H
#define _SYS_SEM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/ipc.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* IPC Semaphore Facility.
*/
/*
* Implementation Constants.
*/
/*
* Permission Definitions.
*/
#define SEM_A 0200 /* alter permission */
#define SEM_R 0400 /* read permission */
/*
* Semaphore Operation Flags.
*/
#define SEM_UNDO 010000 /* set up adjust on exit entry */
/*
* Semctl Command Definitions.
*/
#define GETNCNT 3 /* get semncnt */
#define GETPID 4 /* get sempid */
#define GETVAL 5 /* get semval */
#define GETALL 6 /* get all semval's */
#define GETZCNT 7 /* get semzcnt */
#define SETVAL 8 /* set semval */
#define SETALL 9 /* set all semval's */
/*
* Structure Definitions.
*/
struct semid_ds {
struct ipc_perm sem_perm; /* operation permission struct */
struct sem *sem_base; /* ptr to first semaphore in set */
ushort_t sem_nsems; /* # of semaphores in set */
#if defined(_LP64)
time_t sem_otime; /* last semop time */
time_t sem_ctime; /* last change time */
#else /* _LP64 */
time_t sem_otime; /* last semop time */
int32_t sem_pad1; /* reserved for time_t expansion */
time_t sem_ctime; /* last change time */
int32_t sem_pad2; /* time_t expansion */
#endif /* _LP64 */
int sem_binary; /* flag indicating semaphore type */
long sem_pad3[3]; /* reserve area */
};
/*
* User semaphore template for semop system calls.
*/
struct sembuf {
ushort_t sem_num; /* semaphore # */
short sem_op; /* semaphore operation */
short sem_flg; /* operation flags */
};
#if !defined(_KERNEL)
#if defined(__STDC__)
int semctl(int, int, int, ...);
int semget(key_t, int, int);
int semids(int *, uint_t, uint_t *);
int semop(int, struct sembuf *, size_t);
#if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE)
int semtimedop(int, struct sembuf *, size_t, const struct timespec *);
#endif
#else /* __STDC__ */
int semctl();
int semget();
int semids();
int semop();
int semtimedop();
#endif /* __STDC__ */
#endif /* ! _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SEM_H */
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