1*53ee8cc1Swenshuai.xi /* Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 Free Software Foundation, Inc. 2*53ee8cc1Swenshuai.xi This file is part of the GNU C Library. 3*53ee8cc1Swenshuai.xi 4*53ee8cc1Swenshuai.xi The GNU C Library is free software; you can redistribute it and/or 5*53ee8cc1Swenshuai.xi modify it under the terms of the GNU Lesser General Public 6*53ee8cc1Swenshuai.xi License as published by the Free Software Foundation; either 7*53ee8cc1Swenshuai.xi version 2.1 of the License, or (at your option) any later version. 8*53ee8cc1Swenshuai.xi 9*53ee8cc1Swenshuai.xi The GNU C Library is distributed in the hope that it will be useful, 10*53ee8cc1Swenshuai.xi but WITHOUT ANY WARRANTY; without even the implied warranty of 11*53ee8cc1Swenshuai.xi MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12*53ee8cc1Swenshuai.xi Lesser General Public License for more details. 13*53ee8cc1Swenshuai.xi 14*53ee8cc1Swenshuai.xi You should have received a copy of the GNU Lesser General Public 15*53ee8cc1Swenshuai.xi License along with the GNU C Library; if not, write to the Free 16*53ee8cc1Swenshuai.xi Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17*53ee8cc1Swenshuai.xi 02111-1307 USA. */ 18*53ee8cc1Swenshuai.xi 19*53ee8cc1Swenshuai.xi #ifndef _SYS_IPC_H 20*53ee8cc1Swenshuai.xi # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead." 21*53ee8cc1Swenshuai.xi #endif 22*53ee8cc1Swenshuai.xi 23*53ee8cc1Swenshuai.xi #include <bits/types.h> 24*53ee8cc1Swenshuai.xi 25*53ee8cc1Swenshuai.xi /* Mode bits for `msgget', `semget', and `shmget'. */ 26*53ee8cc1Swenshuai.xi #define IPC_CREAT 01000 /* Create key if key does not exist. */ 27*53ee8cc1Swenshuai.xi #define IPC_EXCL 02000 /* Fail if key exists. */ 28*53ee8cc1Swenshuai.xi #define IPC_NOWAIT 04000 /* Return error on wait. */ 29*53ee8cc1Swenshuai.xi 30*53ee8cc1Swenshuai.xi /* Control commands for `msgctl', `semctl', and `shmctl'. */ 31*53ee8cc1Swenshuai.xi #define IPC_RMID 0 /* Remove identifier. */ 32*53ee8cc1Swenshuai.xi #define IPC_SET 1 /* Set `ipc_perm' options. */ 33*53ee8cc1Swenshuai.xi #define IPC_STAT 2 /* Get `ipc_perm' options. */ 34*53ee8cc1Swenshuai.xi #ifdef __USE_GNU 35*53ee8cc1Swenshuai.xi # define IPC_INFO 3 /* See ipcs. */ 36*53ee8cc1Swenshuai.xi #endif 37*53ee8cc1Swenshuai.xi 38*53ee8cc1Swenshuai.xi /* Special key values. */ 39*53ee8cc1Swenshuai.xi #define IPC_PRIVATE ((__key_t) 0) /* Private key. */ 40*53ee8cc1Swenshuai.xi 41*53ee8cc1Swenshuai.xi 42*53ee8cc1Swenshuai.xi /* Data structure used to pass permission information to IPC operations. */ 43*53ee8cc1Swenshuai.xi struct ipc_perm 44*53ee8cc1Swenshuai.xi { 45*53ee8cc1Swenshuai.xi __key_t __key; /* Key. */ 46*53ee8cc1Swenshuai.xi unsigned int uid; /* Owner's user ID. */ 47*53ee8cc1Swenshuai.xi unsigned int gid; /* Owner's group ID. */ 48*53ee8cc1Swenshuai.xi unsigned int cuid; /* Creator's user ID. */ 49*53ee8cc1Swenshuai.xi unsigned int cgid; /* Creator's group ID. */ 50*53ee8cc1Swenshuai.xi unsigned int mode; /* Read/write permission. */ 51*53ee8cc1Swenshuai.xi unsigned short int __seq; /* Sequence number. */ 52*53ee8cc1Swenshuai.xi unsigned short int __pad1; 53*53ee8cc1Swenshuai.xi unsigned long int __unused1; 54*53ee8cc1Swenshuai.xi unsigned long int __unused2; 55*53ee8cc1Swenshuai.xi }; 56