1  /* Analogous to kernel struct msqid64_ds used on msgctl.  */
       2  struct kernel_msqid64_ds
       3  {
       4    struct ipc_perm msg_perm;
       5    unsigned long msg_stime_high;
       6    unsigned long msg_stime;
       7    unsigned long msg_rtime_high;
       8    unsigned long msg_rtime;
       9    unsigned long msg_ctime_high;
      10    unsigned long msg_ctime;
      11    unsigned long msg_cbytes;
      12    unsigned long msg_qnum;
      13    unsigned long msg_qbytes;
      14    __pid_t msg_lspid;
      15    __pid_t msg_lrpid;
      16    unsigned long __unused1;
      17    unsigned long __unused2;
      18  };