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glibc/bits/msq.h
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/* Copyright (C) 1995, 1997 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Library General Public License as | |
published by the Free Software Foundation; either version 2 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 | |
Library General Public License for more details. | |
You should have received a copy of the GNU Library General Public | |
License along with the GNU C Library; see the file COPYING.LIB. 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 <features.h> | |
#include <sys/types.h> | |
/* Define options for message queue functions. */ | |
#define MSG_NOERROR 010000 /* no error if message is too big */ | |
__BEGIN_DECLS | |
/* 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 short int msg_qnum; /* number of messages currently on queue */ | |
unsigned short 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() */ | |
}; | |
__END_DECLS |