Linux Kernel  3.7.1
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msgbuf.h
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1 #ifndef _S390_MSGBUF_H
2 #define _S390_MSGBUF_H
3 
4 /*
5  * The msqid64_ds structure for S/390 architecture.
6  * Note extra padding because this structure is passed back and forth
7  * between kernel and user space.
8  *
9  * Pad space is left for:
10  * - 64-bit time_t to solve y2038 problem
11  * - 2 miscellaneous 32-bit values
12  */
13 
14 struct msqid64_ds {
15  struct ipc64_perm msg_perm;
16  __kernel_time_t msg_stime; /* last msgsnd time */
17 #ifndef __s390x__
18  unsigned long __unused1;
19 #endif /* ! __s390x__ */
20  __kernel_time_t msg_rtime; /* last msgrcv time */
21 #ifndef __s390x__
22  unsigned long __unused2;
23 #endif /* ! __s390x__ */
24  __kernel_time_t msg_ctime; /* last change time */
25 #ifndef __s390x__
26  unsigned long __unused3;
27 #endif /* ! __s390x__ */
28  unsigned long msg_cbytes; /* current number of bytes on queue */
29  unsigned long msg_qnum; /* number of messages in queue */
30  unsigned long msg_qbytes; /* max number of bytes on queue */
31  __kernel_pid_t msg_lspid; /* pid of last msgsnd */
32  __kernel_pid_t msg_lrpid; /* last receive pid */
33  unsigned long __unused4;
34  unsigned long __unused5;
35 };
36 
37 #endif /* _S390_MSGBUF_H */