10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 220Sstevel@tonic-gate /* 230Sstevel@tonic-gate * Copyright 1986 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */ 280Sstevel@tonic-gate /* All Rights Reserved */ 290Sstevel@tonic-gate 30*722Smuffin #ifndef _sys_sem_h 31*722Smuffin #define _sys_sem_h 32*722Smuffin 330Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 340Sstevel@tonic-gate 350Sstevel@tonic-gate /* 360Sstevel@tonic-gate * IPC Semaphore Facility. 370Sstevel@tonic-gate */ 380Sstevel@tonic-gate 390Sstevel@tonic-gate /* 400Sstevel@tonic-gate * Semaphore Operation Flags. 410Sstevel@tonic-gate */ 420Sstevel@tonic-gate #define SEM_UNDO 010000 /* set up adjust on exit entry */ 430Sstevel@tonic-gate 440Sstevel@tonic-gate /* 450Sstevel@tonic-gate * Semctl Command Definitions. 460Sstevel@tonic-gate */ 470Sstevel@tonic-gate 480Sstevel@tonic-gate #define GETNCNT 3 /* get semncnt */ 490Sstevel@tonic-gate #define GETPID 4 /* get sempid */ 500Sstevel@tonic-gate #define GETVAL 5 /* get semval */ 510Sstevel@tonic-gate #define GETALL 6 /* get all semval's */ 520Sstevel@tonic-gate #define GETZCNT 7 /* get semzcnt */ 530Sstevel@tonic-gate #define SETVAL 8 /* set semval */ 540Sstevel@tonic-gate #define SETALL 9 /* set all semval's */ 550Sstevel@tonic-gate 560Sstevel@tonic-gate /* 570Sstevel@tonic-gate * Structure Definitions. 580Sstevel@tonic-gate */ 590Sstevel@tonic-gate 600Sstevel@tonic-gate /* 610Sstevel@tonic-gate * There is one semaphore id data structure for each set of semaphores 620Sstevel@tonic-gate * in the system. 630Sstevel@tonic-gate */ 640Sstevel@tonic-gate 650Sstevel@tonic-gate struct semid_ds { 660Sstevel@tonic-gate struct ipc_perm sem_perm; /* operation permission struct */ 670Sstevel@tonic-gate struct sem *sem_base; /* ptr to first semaphore in set */ 680Sstevel@tonic-gate ushort sem_nsems; /* # of semaphores in set */ 690Sstevel@tonic-gate time_t sem_otime; /* last semop time */ 700Sstevel@tonic-gate time_t sem_ctime; /* last change time */ 710Sstevel@tonic-gate }; 720Sstevel@tonic-gate 730Sstevel@tonic-gate /* 740Sstevel@tonic-gate * There is one semaphore structure for each semaphore in the system. 750Sstevel@tonic-gate */ 760Sstevel@tonic-gate 770Sstevel@tonic-gate struct sem { 780Sstevel@tonic-gate ushort semval; /* semaphore text map address */ 790Sstevel@tonic-gate short sempid; /* pid of last operation */ 800Sstevel@tonic-gate ushort semncnt; /* # awaiting semval > cval */ 810Sstevel@tonic-gate ushort semzcnt; /* # awaiting semval = 0 */ 820Sstevel@tonic-gate }; 830Sstevel@tonic-gate 840Sstevel@tonic-gate /* 850Sstevel@tonic-gate * User semaphore template for semop system calls. 860Sstevel@tonic-gate */ 870Sstevel@tonic-gate 880Sstevel@tonic-gate struct sembuf { 890Sstevel@tonic-gate short sem_num; /* semaphore # */ 900Sstevel@tonic-gate short sem_op; /* semaphore operation */ 910Sstevel@tonic-gate short sem_flg; /* operation flags */ 920Sstevel@tonic-gate }; 930Sstevel@tonic-gate 940Sstevel@tonic-gate /* 950Sstevel@tonic-gate * 'arg' argument template for semctl system calls. 960Sstevel@tonic-gate */ 970Sstevel@tonic-gate union semun { 980Sstevel@tonic-gate int val; /* value for SETVAL */ 990Sstevel@tonic-gate struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */ 1000Sstevel@tonic-gate ushort *array; /* array for GETALL & SETALL */ 1010Sstevel@tonic-gate }; 1020Sstevel@tonic-gate 103*722Smuffin #endif /* !_sys_sem_h */ 104