]>
Commit | Line | Data |
---|---|---|
568035b7 | 1 | /* Copyright (C) 1995-2013 Free Software Foundation, Inc. |
f304af81 UD |
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 | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
f304af81 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
f304af81 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
f304af81 UD |
17 | |
18 | #ifndef _SYS_IPC_H | |
19 | # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead." | |
20 | #endif | |
21 | ||
219aa9e9 | 22 | #include <bits/types.h> |
f304af81 UD |
23 | |
24 | /* Mode bits for `msgget', `semget', and `shmget'. */ | |
25 | #define IPC_CREAT 01000 /* Create key if key does not exist. */ | |
26 | #define IPC_EXCL 02000 /* Fail if key exists. */ | |
27 | #define IPC_NOWAIT 04000 /* Return error on wait. */ | |
28 | ||
29 | /* Control commands for `msgctl', `semctl', and `shmctl'. */ | |
30 | #define IPC_RMID 0 /* Remove identifier. */ | |
31 | #define IPC_SET 1 /* Set `ipc_perm' options. */ | |
32 | #define IPC_STAT 2 /* Get `ipc_perm' options. */ | |
bba09d23 UD |
33 | #ifdef __USE_GNU |
34 | # define IPC_INFO 3 /* See ipcs. */ | |
35 | #endif | |
f304af81 UD |
36 | |
37 | /* Special key values. */ | |
38 | #define IPC_PRIVATE ((__key_t) 0) /* Private key. */ | |
39 | ||
40 | ||
41 | /* Data structure used to pass permission information to IPC operations. */ | |
42 | struct ipc_perm | |
43 | { | |
44 | __key_t __key; /* Key. */ | |
45 | __uid_t uid; /* Owner's user ID. */ | |
46 | __gid_t gid; /* Owner's group ID. */ | |
47 | __uid_t cuid; /* Creator's user ID. */ | |
48 | __gid_t cgid; /* Creator's group ID. */ | |
49 | __mode_t mode; /* Read/write permission. */ | |
b77bb4fb RM |
50 | __uint32_t __seq; /* Sequence number. */ |
51 | __uint32_t __pad1; | |
d1d9eaf4 OB |
52 | __uint64_t __glibc_reserved1; |
53 | __uint64_t __glibc_reserved2; | |
f304af81 UD |
54 | }; |
55 | ||
56 | ||
57 | __BEGIN_DECLS | |
58 | ||
59 | /* The actual system call: all functions are multiplexed by this. */ | |
bcaad6ee AJ |
60 | extern int __ipc (int __call, int __first, int __second, int __third, |
61 | void *__ptr) __THROW; | |
f304af81 UD |
62 | |
63 | __END_DECLS | |
64 | ||
bba09d23 | 65 | #ifdef __USE_GNU |
f304af81 | 66 | /* The codes for the functions to use the multiplexer `__ipc'. */ |
bba09d23 UD |
67 | # define IPCOP_semop 1 |
68 | # define IPCOP_semget 2 | |
69 | # define IPCOP_semctl 3 | |
70 | # define IPCOP_msgsnd 11 | |
71 | # define IPCOP_msgrcv 12 | |
72 | # define IPCOP_msgget 13 | |
73 | # define IPCOP_msgctl 14 | |
74 | # define IPCOP_shmat 21 | |
75 | # define IPCOP_shmdt 22 | |
76 | # define IPCOP_shmget 23 | |
77 | # define IPCOP_shmctl 24 | |
78 | #endif |