mirror of
https://github.com/reactos/reactos.git
synced 2024-11-18 13:01:40 +00:00
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* $Id: msg.h,v 1.5 2002/10/29 04:45:21 rex Exp $
|
|
*/
|
|
/*
|
|
* sys/msg.h
|
|
*
|
|
* message queue structures. Conforming to the Single UNIX(r) Specification
|
|
* Version 2, System Interface & Headers Issue 5
|
|
*
|
|
* This file is part of the ReactOS Operating System.
|
|
*
|
|
* Contributors:
|
|
* Created by KJK::Hyperion <noog@libero.it>
|
|
*
|
|
* THIS SOFTWARE IS NOT COPYRIGHTED
|
|
*
|
|
* This source code is offered for use in the public domain. You may
|
|
* use, modify or distribute it freely.
|
|
*
|
|
* This code is distributed in the hope that it will be useful but
|
|
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
|
|
* DISCLAMED. This includes but is not limited to warranties of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
*/
|
|
#ifndef __SYS_SOCKET_H_INCLUDED__
|
|
#define __SYS_SOCKET_H_INCLUDED__
|
|
|
|
/* INCLUDES */
|
|
#include <sys/ipc.h>
|
|
|
|
/* OBJECTS */
|
|
|
|
/* TYPES */
|
|
typedef unsigned int msgqnum_t; /* Used for the number of messages in the message queue */
|
|
typedef unsigned int msglen_t; /* Used for the number of bytes allowed in a message queue */
|
|
|
|
struct msqid_ds
|
|
{
|
|
struct ipc_perm msg_perm; /* operation permission structure */
|
|
msgqnum_t msg_qnum; /* number of messages currently on queue */
|
|
msglen_t msg_qbytes; /* maximum number of bytes allowed on queue */
|
|
pid_t msg_lspid; /* process ID of last msgsnd() */
|
|
pid_t msg_lrpid; /* process ID of last msgrcv() */
|
|
time_t msg_stime; /* time of last msgsnd() */
|
|
time_t msg_rtime; /* time of last msgrcv() */
|
|
time_t msg_ctime; /* time of last change */
|
|
};
|
|
|
|
/* CONSTANTS */
|
|
/* Message operation flag */
|
|
#define MSG_NOERROR (0x00001000) /* No error if big message */
|
|
|
|
/* PROTOTYPES */
|
|
int msgctl(int, int, struct msqid_ds *);
|
|
int msgget(key_t, int);
|
|
ssize_t msgrcv(int, void *, size_t, long int, int);
|
|
int msgsnd(int, const void *, size_t, int);
|
|
|
|
/* MACROS */
|
|
|
|
#endif /* __SYS_SOCKET_H_INCLUDED__ */
|
|
|
|
/* EOF */
|
|
|