/* * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1990, 1996-1998 Apple Computer, Inc. * All Rights Reserved. */ /* * posix_shm.c : Support for POSIX shared memory APIs * * File: posix_shm.c * Author: Ananthakrishna Ramesh * * HISTORY * 2-Sep-1999 A.Ramesh * Created for MacOSX * */ #ifndef _SYS_POSIX_SHM_H_ #define _SYS_POSIX_SHM_H_ #include <sys/appleapiopts.h> #include <sys/types.h> #include <sys/proc.h> struct label; #define PSHMNAMLEN 31 /* maximum name segment length we bother with */ struct pshminfo { unsigned int pshm_flags; unsigned int pshm_usecount; off_t pshm_length; mode_t pshm_mode; uid_t pshm_uid; gid_t pshm_gid; char pshm_name[PSHMNAMLEN + 1]; /* segment name */ void * pshm_memobject; #if DIAGNOSTIC unsigned int pshm_readcount; unsigned int pshm_writecount; struct proc * pshm_proc; #endif /* DIAGNOSTIC */ struct label * pshm_label; }; #define PSHMINFO_NULL (struct pshminfo *)0 #define PSHM_NONE 1 #define PSHM_DEFINED 2 #define PSHM_ALLOCATED 4 #define PSHM_MAPPED 8 #define PSHM_INUSE 0x10 #define PSHM_REMOVED 0x20 #define PSHM_INCREATE 0x40 #define PSHM_INDELETE 0x80 #endif