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 semaphore APIs 34 * 35 * File: posix_sem.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_SEM_H_ 45 #define _SYS_POSIX_SEM_H_ 46 47 #include <sys/appleapiopts.h> 48 #include <sys/types.h> 49 #include <sys/proc.h> 50 51 struct label; 52 53 #define PSEMNAMLEN 31 /* maximum name segment length we bother with */ 54 55 struct pseminfo { 56 unsigned int psem_flags; 57 unsigned int psem_usecount; 58 mode_t psem_mode; 59 uid_t psem_uid; 60 gid_t psem_gid; 61 char psem_name[PSEMNAMLEN + 1]; /* segment name */ 62 void * psem_semobject; 63 struct label * psem_label; 64 pid_t psem_creator_pid; 65 uint64_t psem_creator_uniqueid; 66 }; 67 68 #define PSEMINFO_NULL (struct pseminfo *)0 69 70 #define PSEM_NONE 1 71 #define PSEM_DEFINED 2 72 #define PSEM_ALLOCATED 4 73 #define PSEM_MAPPED 8 74 #define PSEM_INUSE 0x10 75 #define PSEM_REMOVED 0x20 76 #define PSEM_INCREATE 0x40 77 #define PSEM_INDELETE 0x80 78 79 #endif 80