1/* 2 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Copyright (c) 1990, 1996-1998 Apple Computer, Inc. 30 * All Rights Reserved. 31 */ 32/* 33 * posix_shm.c : Support for POSIX shared memory APIs 34 * 35 * File: posix_shm.c 36 * Author: Ananthakrishna Ramesh 37 * 38 * HISTORY 39 * 2-Sep-1999 A.Ramesh 40 * Created for MacOSX 41 * 42 */ 43 44#ifndef _SYS_POSIX_SHM_H_ 45#define _SYS_POSIX_SHM_H_ 46 47#include <sys/appleapiopts.h> 48#include <sys/types.h> 49#include <sys/proc.h> 50 51struct label; 52 53#define PSHMNAMLEN 31 /* maximum name segment length we bother with */ 54 55struct pshminfo { 56 unsigned int pshm_flags; 57 unsigned int pshm_usecount; 58 off_t pshm_length; 59 mode_t pshm_mode; 60 uid_t pshm_uid; 61 gid_t pshm_gid; 62 char pshm_name[PSHMNAMLEN + 1]; /* segment name */ 63 void * pshm_memobject; 64#if DIAGNOSTIC 65 unsigned int pshm_readcount; 66 unsigned int pshm_writecount; 67 struct proc * pshm_proc; 68#endif /* DIAGNOSTIC */ 69 struct label * pshm_label; 70}; 71#define PSHMINFO_NULL (struct pshminfo *)0 72 73#define PSHM_NONE 1 74#define PSHM_DEFINED 2 75#define PSHM_ALLOCATED 4 76#define PSHM_MAPPED 8 77#define PSHM_INUSE 0x10 78#define PSHM_REMOVED 0x20 79#define PSHM_INCREATE 0x40 80#define PSHM_INDELETE 0x80 81 82#endif 83