arch/x86/include/asm/msgbuf.h

   1 #ifndef _ASM_X86_MSGBUF_H
   2 #define _ASM_X86_MSGBUF_H
   3
   4 /*
   5  * The msqid64_ds structure for i386 architecture.
   6  * Note extra padding because this structure is passed back and forth
   7  * between kernel and user space.
   8  *
   9  * Pad space on i386 is left for:
  10  * - 64-bit time_t to solve y2038 problem
  11  * - 2 miscellaneous 32-bit values
  12  *
  13  * Pad space on x8664 is left for:
  14  * - 2 miscellaneous 64-bit values
  15  */
  16 struct msqid64_ds {
  17         struct ipc64_perm msg_perm;
  18         __kernel_time_t msg_stime;      /* last msgsnd time */
  19 #ifdef __i386__
  20         unsigned long   __unused1;
  21 #endif
  22         __kernel_time_t msg_rtime;      /* last msgrcv time */
  23 #ifdef __i386__
  24         unsigned long   __unused2;
  25 #endif
  26         __kernel_time_t msg_ctime;      /* last change time */
  27 #ifdef __i386__
  28         unsigned long   __unused3;
  29 #endif
  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  __unused4;
  36         unsigned long  __unused5;
  37 };
  38
  39 #endif /* _ASM_X86_MSGBUF_H */