arch/sparc/include/asm/msgbuf.h

   1 #ifndef _SPARC_MSGBUF_H
   2 #define _SPARC_MSGBUF_H
   3
   4 /*
   5  * The msqid64_ds structure for sparc64 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
  21 struct msqid64_ds {
  22         struct ipc64_perm msg_perm;
  23         PADDING(__pad1)
  24         __kernel_time_t msg_stime;      /* last msgsnd time */
  25         PADDING(__pad2)
  26         __kernel_time_t msg_rtime;      /* last msgrcv time */
  27         PADDING(__pad3)
  28         __kernel_time_t msg_ctime;      /* last change time */
  29         unsigned long  msg_cbytes;      /* current number of bytes on queue */
  30         unsigned long  msg_qnum;        /* number of messages in queue */
  31         unsigned long  msg_qbytes;      /* max number of bytes on queue */
  32         __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
  33         __kernel_pid_t msg_lrpid;       /* last receive pid */
  34         unsigned long  __unused1;
  35         unsigned long  __unused2;
  36 };
  37 #undef PADDING
  38 #endif /* _SPARC_MSGBUF_H */