projects / thirdparty / glibc.git / blame
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|---|---|---|
| f304af81 UD |
1 | /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | ||
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 5 | modify it under the terms of the GNU Library General Public License as | |
| 6 | published by the Free Software Foundation; either version 2 of the | |
| 7 | License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Library General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Library General Public | |
| 15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 17 | Boston, MA 02111-1307, USA. */ | |
| 18 | ||
| 19 | #ifndef _SYS_IPC_H | |
| 20 | # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead." | |
| 21 | #endif | |
| 22 | ||
| 23 | #include <sys/types.h> | |
| 24 | ||
| 25 | /* Mode bits for `msgget', `semget', and `shmget'. */ | |
| 26 | #define IPC_CREAT 01000 /* Create key if key does not exist. */ | |
| 27 | #define IPC_EXCL 02000 /* Fail if key exists. */ | |
| 28 | #define IPC_NOWAIT 04000 /* Return error on wait. */ | |
| 29 | ||
| 30 | /* Control commands for `msgctl', `semctl', and `shmctl'. */ | |
| 31 | #define IPC_RMID 0 /* Remove identifier. */ | |
| 32 | #define IPC_SET 1 /* Set `ipc_perm' options. */ | |
| 33 | #define IPC_STAT 2 /* Get `ipc_perm' options. */ | |
| 34 | #define IPC_INFO 3 /* See ipcs. */ | |
| 35 | ||
| 36 | /* Special key values. */ | |
| 37 | #define IPC_PRIVATE ((__key_t) 0) /* Private key. */ | |
| 38 | ||
| 39 | ||
| 40 | /* Data structure used to pass permission information to IPC operations. */ | |
| 41 | struct ipc_perm | |
| 42 | { | |
| 43 | __key_t __key; /* Key. */ | |
| 44 | __uid_t uid; /* Owner's user ID. */ | |
| 45 | __gid_t gid; /* Owner's group ID. */ | |
| 46 | __uid_t cuid; /* Creator's user ID. */ | |
| 47 | __gid_t cgid; /* Creator's group ID. */ | |
| 48 | __mode_t mode; /* Read/write permission. */ | |
| 49 | unsigned short int __seq; /* Sequence number. */ | |
| 50 | }; | |
| 51 | ||
| 52 | ||
| 53 | __BEGIN_DECLS | |
| 54 | ||
| 55 | /* The actual system call: all functions are multiplexed by this. */ | |
| 56 | extern int __ipc __P ((int __call, int __first, int __second, int __third, | |
| 57 | void *__ptr)); | |
| 58 | ||
| 59 | __END_DECLS | |
| 60 | ||
| 61 | /* The codes for the functions to use the multiplexer `__ipc'. */ | |
| 62 | #define IPCOP_semop 1 | |
| 63 | #define IPCOP_semget 2 | |
| 64 | #define IPCOP_semctl 3 | |
| 65 | #define IPCOP_msgsnd 11 | |
| 66 | #define IPCOP_msgrcv 12 | |
| 67 | #define IPCOP_msgget 13 | |
| 68 | #define IPCOP_msgctl 14 | |
| 69 | #define IPCOP_shmat 21 | |
| 70 | #define IPCOP_shmdt 22 | |
| 71 | #define IPCOP_shmget 23 | |
| 72 | #define IPCOP_shmctl 24 |