linux/arch/x86/include/asm/msgbuf.h
H. Peter Anvin 1965aae3c9 x86: Fix ASM_X86__ header guards
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00

39 lines
1.1 KiB
C

#ifndef _ASM_X86_MSGBUF_H
#define _ASM_X86_MSGBUF_H
/*
* The msqid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space on i386 is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*
* Pad space on x8664 is left for:
* - 2 miscellaneous 64-bit values
*/
struct msqid64_ds {
struct ipc64_perm msg_perm;
__kernel_time_t msg_stime; /* last msgsnd time */
#ifdef __i386__
unsigned long __unused1;
#endif
__kernel_time_t msg_rtime; /* last msgrcv time */
#ifdef __i386__
unsigned long __unused2;
#endif
__kernel_time_t msg_ctime; /* last change time */
#ifdef __i386__
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_X86_MSGBUF_H */