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 2005 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_shm_h 31*722Smuffin #define _sys_shm_h 32*722Smuffin 330Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 340Sstevel@tonic-gate 350Sstevel@tonic-gate /* 360Sstevel@tonic-gate * IPC Shared Memory Facility. 370Sstevel@tonic-gate */ 380Sstevel@tonic-gate 390Sstevel@tonic-gate #include <sys/param.h> 400Sstevel@tonic-gate /* #include <machine/mmu.h> */ 410Sstevel@tonic-gate 420Sstevel@tonic-gate /* 430Sstevel@tonic-gate * Shared Memory Operation Flags. 440Sstevel@tonic-gate */ 450Sstevel@tonic-gate 460Sstevel@tonic-gate #define SHM_RDONLY 010000 /* attach read-only (else read-write) */ 470Sstevel@tonic-gate #define SHM_RND 020000 /* round attach address to SHMLBA */ 480Sstevel@tonic-gate 490Sstevel@tonic-gate /* 500Sstevel@tonic-gate * Shmctl Command Definitions. 510Sstevel@tonic-gate */ 520Sstevel@tonic-gate 530Sstevel@tonic-gate #define SHM_LOCK 3 /* Lock segment in core */ 540Sstevel@tonic-gate #define SHM_UNLOCK 4 /* Unlock segment */ 550Sstevel@tonic-gate 560Sstevel@tonic-gate /* 570Sstevel@tonic-gate * Implementation Constants. 580Sstevel@tonic-gate */ 590Sstevel@tonic-gate #define SHMLBA PAGESIZE /* segment low boundary address multiple */ 600Sstevel@tonic-gate /* (SHMLBA must be a power of 2) */ 610Sstevel@tonic-gate 620Sstevel@tonic-gate /* 630Sstevel@tonic-gate * Structure Definitions. 640Sstevel@tonic-gate */ 650Sstevel@tonic-gate 660Sstevel@tonic-gate /* 670Sstevel@tonic-gate * There is a shared mem id data structure for each segment in the system. 680Sstevel@tonic-gate */ 690Sstevel@tonic-gate 700Sstevel@tonic-gate struct shmid_ds { 710Sstevel@tonic-gate struct ipc_perm shm_perm; /* operation permission struct */ 720Sstevel@tonic-gate uint shm_segsz; /* size of segment in bytes */ 730Sstevel@tonic-gate ushort shm_lpid; /* pid of last shmop */ 740Sstevel@tonic-gate ushort shm_cpid; /* pid of creator */ 750Sstevel@tonic-gate ushort shm_nattch; /* number of current attaches */ 760Sstevel@tonic-gate time_t shm_atime; /* last shmat time */ 770Sstevel@tonic-gate time_t shm_dtime; /* last shmdt time */ 780Sstevel@tonic-gate time_t shm_ctime; /* last change time */ 790Sstevel@tonic-gate struct anon_map *shm_amp; /* segment anon_map pointer */ 800Sstevel@tonic-gate }; 810Sstevel@tonic-gate 82*722Smuffin #endif /* !_sys_shm_h */ 83