| /* Copyright (C) 1995-1999, 2000, 2002 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #ifndef _SYS_IPC_H |
| # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead." |
| #endif |
| |
| #include <bits/types.h> |
| |
| /* Mode bits for `msgget', `semget', and `shmget'. */ |
| #define IPC_CREAT 01000 /* Create key if key does not exist. */ |
| #define IPC_EXCL 02000 /* Fail if key exists. */ |
| #define IPC_NOWAIT 04000 /* Return error on wait. */ |
| |
| /* Control commands for `msgctl', `semctl', and `shmctl'. */ |
| #define IPC_RMID 0 /* Remove identifier. */ |
| #define IPC_SET 1 /* Set `ipc_perm' options. */ |
| #define IPC_STAT 2 /* Get `ipc_perm' options. */ |
| #ifdef __USE_GNU |
| # define IPC_INFO 3 /* See ipcs. */ |
| #endif |
| |
| /* Special key values. */ |
| #define IPC_PRIVATE ((__key_t) 0) /* Private key. */ |
| |
| |
| /* Data structure used to pass permission information to IPC operations. */ |
| struct ipc_perm |
| { |
| __key_t __key; /* Key. */ |
| __uid_t uid; /* Owner's user ID. */ |
| __gid_t gid; /* Owner's group ID. */ |
| __uid_t cuid; /* Creator's user ID. */ |
| __gid_t cgid; /* Creator's group ID. */ |
| __mode_t mode; /* Read/write permission. */ |
| __uint32_t __seq; /* Sequence number. */ |
| __uint32_t __pad1; |
| __uint64_t __unused1; |
| __uint64_t __unused2; |
| }; |
| |
| |
| __BEGIN_DECLS |
| |
| /* The actual system call: all functions are multiplexed by this. */ |
| extern int __ipc (int __call, int __first, int __second, int __third, |
| void *__ptr) __THROW; |
| |
| __END_DECLS |
| |
| #ifdef __USE_GNU |
| /* The codes for the functions to use the multiplexer `__ipc'. */ |
| # define IPCOP_semop 1 |
| # define IPCOP_semget 2 |
| # define IPCOP_semctl 3 |
| # define IPCOP_msgsnd 11 |
| # define IPCOP_msgrcv 12 |
| # define IPCOP_msgget 13 |
| # define IPCOP_msgctl 14 |
| # define IPCOP_shmat 21 |
| # define IPCOP_shmdt 22 |
| # define IPCOP_shmget 23 |
| # define IPCOP_shmctl 24 |
| #endif |
