mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 05:01:48 +00:00
8a1ab3155c
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#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:
|
|
* - 64-bit time_t to solve y2038 problem
|
|
* - 2 miscellaneous 32-bit values
|
|
*/
|
|
|
|
struct msqid64_ds {
|
|
struct ipc64_perm msg_perm;
|
|
__kernel_time_t msg_stime; /* last msgsnd time */
|
|
#if __BITS_PER_LONG != 64
|
|
unsigned long __unused1;
|
|
#endif
|
|
__kernel_time_t msg_rtime; /* last msgrcv time */
|
|
#if __BITS_PER_LONG != 64
|
|
unsigned long __unused2;
|
|
#endif
|
|
__kernel_time_t msg_ctime; /* last change time */
|
|
#if __BITS_PER_LONG != 64
|
|
unsigned long __unused3;
|
|
#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 */
|