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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * include/asm-xtensa/msgbuf.h
   4  *
   5  * The msqid64_ds structure for the Xtensa 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  * This file is subject to the terms and conditions of the GNU General
  14  * Public License.  See the file "COPYING" in the main directory of
  15  * this archive for more details.
  16  */
  17
  18 #ifndef _XTENSA_MSGBUF_H
  19 #define _XTENSA_MSGBUF_H
  20
  21 struct msqid64_ds {
  22         struct ipc64_perm msg_perm;
  23 #ifdef __XTENSA_EB__
  24         unsigned int    __unused1;
  25         __kernel_time_t msg_stime;      /* last msgsnd time */
  26         unsigned int    __unused2;
  27         __kernel_time_t msg_rtime;      /* last msgrcv time */
  28         unsigned int    __unused3;
  29         __kernel_time_t msg_ctime;      /* last change time */
  30 #elif defined(__XTENSA_EL__)
  31         __kernel_time_t msg_stime;      /* last msgsnd time */
  32         unsigned int    __unused1;
  33         __kernel_time_t msg_rtime;      /* last msgrcv time */
  34         unsigned int    __unused2;
  35         __kernel_time_t msg_ctime;      /* last change time */
  36         unsigned int    __unused3;
  37 #else
  38 # error processor byte order undefined!
  39 #endif
  40         unsigned long  msg_cbytes;      /* current number of bytes on queue */
  41         unsigned long  msg_qnum;        /* number of messages in queue */
  42         unsigned long  msg_qbytes;      /* max number of bytes on queue */
  43         __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
  44         __kernel_pid_t msg_lrpid;       /* last receive pid */
  45         unsigned long  __unused4;
  46         unsigned long  __unused5;
  47 };
  48
  49 #endif  /* _XTENSA_MSGBUF_H */