/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
#ifndef __ASM_GENERIC_MSGBUF_H
|
#define __ASM_GENERIC_MSGBUF_H
|
|
#include <asm/bitsperlong.h>
|
/*
|
* generic msqid64_ds structure.
|
*
|
* Note extra padding because this structure is passed back and forth
|
* between kernel and user space.
|
*
|
* msqid64_ds was originally meant to be architecture specific, but
|
* everyone just ended up making identical copies without specific
|
* optimizations, so we may just as well all use the same one.
|
*
|
* 64 bit architectures typically define a 64 bit __kernel_time_t,
|
* so they do not need the first three padding words.
|
* On big-endian systems, the padding is in the wrong place.
|
*
|
* Pad space is left for:
|
* - 2 miscellaneous 32-bit values
|
*/
|
|
struct msqid64_ds {
|
struct ipc64_perm msg_perm;
|
#if __BITS_PER_LONG == 64
|
__kernel_time_t msg_stime; /* last msgsnd time */
|
__kernel_time_t msg_rtime; /* last msgrcv time */
|
__kernel_time_t msg_ctime; /* last change time */
|
#else
|
unsigned long msg_stime; /* last msgsnd time */
|
unsigned long msg_stime_high;
|
unsigned long msg_rtime; /* last msgrcv time */
|
unsigned long msg_rtime_high;
|
unsigned long msg_ctime; /* last change time */
|
unsigned long msg_ctime_high;
|
#endif
|
unsigned long msg_cbytes; /* current number of bytes on queue */
|
unsigned long msg_qnum; /* number of messages in queue */
|
unsigned long msg_qbytes; /* max number of bytes on queue */
|
__kernel_pid_t msg_lspid; /* pid of last msgsnd */
|
__kernel_pid_t msg_lrpid; /* last receive pid */
|
unsigned long __unused4;
|
unsigned long __unused5;
|
};
|
|
#endif /* __ASM_GENERIC_MSGBUF_H */
|
