arch/sparc/include/uapi/asm/msgbuf.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _SPARC_MSGBUF_H
   3 #define _SPARC_MSGBUF_H
   4
   5 /*
   6  * The msqid64_ds structure for sparc64 architecture.
   7  * Note extra padding because this structure is passed back and forth
   8  * between kernel and user space.
   9  *
  10  * Pad space is left for:
  11  * - 64-bit time_t to solve y2038 problem
  12  * - 2 miscellaneous 32-bit values
  13  */
  14
  15 #if defined(__sparc__) && defined(__arch64__)
  16 # define PADDING(x)
  17 #else
  18 # define PADDING(x) unsigned int x;
  19 #endif
  20
  21
  22 struct msqid64_ds {
  23         struct ipc64_perm msg_perm;
  24         PADDING(__pad1)
  25         __kernel_time_t msg_stime;      /* last msgsnd time */
  26         PADDING(__pad2)
  27         __kernel_time_t msg_rtime;      /* last msgrcv time */
  28         PADDING(__pad3)
  29         __kernel_time_t msg_ctime;      /* last change time */
  30         unsigned long  msg_cbytes;      /* current number of bytes on queue */
  31         unsigned long  msg_qnum;        /* number of messages in queue */
  32         unsigned long  msg_qbytes;      /* max number of bytes on queue */
  33         __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
  34         __kernel_pid_t msg_lrpid;       /* last receive pid */
  35         unsigned long  __unused1;
  36         unsigned long  __unused2;
  37 };
  38 #undef PADDING
  39 #endif /* _SPARC_MSGBUF_H */