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- /* Copyright (C) 2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contribute by David Mosberger-Tang <davidm@hpl.hp.com>
- 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_MSG_H
- #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
- #endif
- #include <sys/types.h>
- /* Define options for message queue functions. */
- #define MSG_NOERROR 010000 /* no error if message is too big */
- #define MSG_EXCEPT 020000 /* recv any msg except of specified type */
- /* Structure of record for one message inside the kernel.
- The type `struct __msg' is opaque. */
- struct msqid_ds
- {
- struct ipc_perm msg_perm; /* structure describing operation permission */
- __time_t msg_stime; /* time of last msgsnd command */
- __time_t msg_rtime; /* time of last msgrcv command */
- __time_t msg_ctime; /* time of last change */
- unsigned long int __msg_cbytes; /* current number of bytes on queue */
- unsigned long int msg_qnum; /* number of messages currently on queue */
- unsigned long int msg_qbytes; /* max number of bytes allowed on queue */
- __pid_t msg_lspid; /* pid of last msgsnd() */
- __pid_t msg_lrpid; /* pid of last msgrcv() */
- unsigned long int __unused1;
- unsigned long int __unused2;
- };
- #ifdef __USE_MISC
- # define msg_cbytes __msg_cbytes
- /* ipcs ctl commands */
- # define MSG_STAT 11
- # define MSG_INFO 12
- /* buffer for msgctl calls IPC_INFO, MSG_INFO */
- struct msginfo
- {
- int msgpool;
- int msgmap;
- int msgmax;
- int msgmnb;
- int msgmni;
- int msgssz;
- int msgtql;
- unsigned short int msgseg;
- };
- #endif /* __USE_MISC */
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