linux - include/asm-xtensa/msgbuf.h

48 lines · 1.5 KiB

1	/*
2	* include/asm-xtensa/msgbuf.h
3	*
4	* The msqid64_ds structure for the Xtensa architecture.
5	* Note extra padding because this structure is passed back and forth
6	* between kernel and user space.
7	*
8	* Pad space is left for:
9	* - 64-bit time_t to solve y2038 problem
10	* - 2 miscellaneous 32-bit values
11	*
12	* This file is subject to the terms and conditions of the GNU General
13	* Public License. See the file "COPYING" in the main directory of
14	* this archive for more details.
15	*/
16
17	#ifndef _XTENSA_MSGBUF_H
18	#define _XTENSA_MSGBUF_H
19
20	struct msqid64_ds {
21	struct ipc64_perm msg_perm;
22	#ifdef __XTENSA_EB__
23	unsigned int __unused1;
24	__kernel_time_t msg_stime; /* last msgsnd time */
25	unsigned int __unused2;
26	__kernel_time_t msg_rtime; /* last msgrcv time */
27	unsigned int __unused3;
28	__kernel_time_t msg_ctime; /* last change time */
29	#elif defined(__XTENSA_EL__)
30	__kernel_time_t msg_stime; /* last msgsnd time */
31	unsigned int __unused1;
32	__kernel_time_t msg_rtime; /* last msgrcv time */
33	unsigned int __unused2;
34	__kernel_time_t msg_ctime; /* last change time */
35	unsigned int __unused3;
36	#else
37	# error processor byte order undefined!
38	#endif
39	unsigned long msg_cbytes; /* current number of bytes on queue */
40	unsigned long msg_qnum; /* number of messages in queue */
41	unsigned long msg_qbytes; /* max number of bytes on queue */
42	__kernel_pid_t msg_lspid; /* pid of last msgsnd */
43	__kernel_pid_t msg_lrpid; /* last receive pid */
44	unsigned long __unused4;
45	unsigned long __unused5;
46	};
47
48	#endif /* _XTENSA_MSGBUF_H */