Linux Kernel  3.7.1
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shmbuf.h
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1 #ifndef _SPARC_SHMBUF_H
2 #define _SPARC_SHMBUF_H
3 
4 /*
5  * The shmid64_ds structure for sparc 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 #if defined(__sparc__) && defined(__arch64__)
15 # define PADDING(x)
16 #else
17 # define PADDING(x) unsigned int x;
18 #endif
19 
20 struct shmid64_ds {
21  struct ipc64_perm shm_perm; /* operation perms */
22  PADDING(__pad1)
23  __kernel_time_t shm_atime; /* last attach time */
24  PADDING(__pad2)
25  __kernel_time_t shm_dtime; /* last detach time */
26  PADDING(__pad3)
27  __kernel_time_t shm_ctime; /* last change time */
28  size_t shm_segsz; /* size of segment (bytes) */
29  __kernel_pid_t shm_cpid; /* pid of creator */
30  __kernel_pid_t shm_lpid; /* pid of last operator */
31  unsigned long shm_nattch; /* no. of current attaches */
32  unsigned long __unused1;
33  unsigned long __unused2;
34 };
35 
36 struct shminfo64 {
37  unsigned long shmmax;
38  unsigned long shmmin;
39  unsigned long shmmni;
40  unsigned long shmseg;
41  unsigned long shmall;
42  unsigned long __unused1;
43  unsigned long __unused2;
44  unsigned long __unused3;
45  unsigned long __unused4;
46 };
47 
48 #undef PADDING
49 
50 #endif /* _SPARC_SHMBUF_H */
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