projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 04277e02 | 1 | /* Copyright (C) 1995-2019 Free Software Foundation, Inc. |
| 53c72cc1 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 | |
| 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. | |
| 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 | Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public | |
| ab84e3ff | 15 | License along with the GNU C Library. If not, see |
| 5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
| 53c72cc1 UD |
17 | |
| 18 | #ifndef _SYS_IPC_H | |
| 19 | # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead." | |
| 20 | #endif | |
| 21 | ||
| 22 | #include <bits/types.h> | |
| 23 | #include <bits/wordsize.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 | #ifdef __USE_GNU | |
| 35 | # define IPC_INFO 3 /* See ipcs. */ | |
| 36 | #endif | |
| 37 | ||
| 38 | /* Special key values. */ | |
| 39 | #define IPC_PRIVATE ((__key_t) 0) /* Private key. */ | |
| 40 | ||
| 41 | ||
| 42 | /* Data structure used to pass permission information to IPC operations. */ | |
| 43 | struct ipc_perm | |
| 44 | { | |
| 45 | __key_t __key; /* Key. */ | |
| 46 | __uid_t uid; /* Owner's user ID. */ | |
| 47 | __gid_t gid; /* Owner's group ID. */ | |
| 48 | __uid_t cuid; /* Creator's user ID. */ | |
| 49 | __gid_t cgid; /* Creator's group ID. */ | |
| 50 | #if __WORDSIZE == 32 | |
| 51 | unsigned short int __pad1; | |
| 52 | unsigned short int mode; /* Read/write permission. */ | |
| 53 | unsigned short int __pad2; | |
| 54 | #else | |
| 55 | __mode_t mode; /* Read/write permission. */ | |
| 56 | unsigned short int __pad2; | |
| 57 | #endif | |
| 58 | unsigned short int __seq; /* Sequence number. */ | |
| 59 | unsigned int __pad3; | |
| d1d9eaf4 OB |
60 | __extension__ unsigned long long int __glibc_reserved1; |
| 61 | __extension__ unsigned long long int __glibc_reserved2; | |
| 53c72cc1 | 62 | }; |