projects / apple / xnu.git / blame
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|---|---|---|
| 2d21ac55 A |
1 | |
| 2 | /* | |
| 3 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved. | |
| 4 | * | |
| 5 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 6 | * | |
| 7 | * This file contains Original Code and/or Modifications of Original Code | |
| 8 | * as defined in and that are subject to the Apple Public Source License | |
| 9 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 10 | * compliance with the License. The rights granted to you under the License | |
| 11 | * may not be used to create, or enable the creation or redistribution of, | |
| 12 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 13 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 14 | * terms of an Apple operating system software license agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 18 | * | |
| 19 | * The Original Code and all software distributed under the License are | |
| 20 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 21 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 22 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 23 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 24 | * Please see the License for the specific language governing rights and | |
| 25 | * limitations under the License. | |
| 26 | * | |
| 27 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 28 | */ | |
| 29 | /* | |
| 30 | * Copyright (c) 1990, 1996-1998 Apple Computer, Inc. | |
| 31 | * All Rights Reserved. | |
| 32 | */ | |
| 33 | /* | |
| 34 | * posix_shm.c : Support for POSIX semaphore APIs | |
| 35 | * | |
| 36 | * File: posix_sem.c | |
| 37 | * Author: Ananthakrishna Ramesh | |
| 38 | * | |
| 39 | * HISTORY | |
| 40 | * 2-Sep-1999 A.Ramesh | |
| 41 | * Created for MacOSX | |
| 42 | * | |
| 43 | */ | |
| 44 | ||
| 45 | #ifndef _SYS_POSIX_SEM_H_ | |
| 46 | #define _SYS_POSIX_SEM_H_ | |
| 47 | ||
| 48 | #include <sys/appleapiopts.h> | |
| 49 | #include <sys/types.h> | |
| 50 | #include <sys/proc.h> | |
| 51 | ||
| 52 | struct label; | |
| 53 | ||
| 54 | #define PSEMNAMLEN 31 /* maximum name segment length we bother with */ | |
| 55 | ||
| 56 | struct pseminfo { | |
| 57 | unsigned int psem_flags; | |
| 58 | unsigned int psem_usecount; | |
| 59 | mode_t psem_mode; | |
| 60 | uid_t psem_uid; | |
| 61 | gid_t psem_gid; | |
| 62 | char psem_name[PSEMNAMLEN + 1]; /* segment name */ | |
| 63 | void * psem_semobject; | |
| 64 | struct proc * sem_proc; | |
| 65 | struct label * psem_label; | |
| 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 |