shmid_ds.h

   1 struct shmid_ds {
   2      struct    ipc_perm shm_perm;  /* operation perms */
   3      int  shm_segsz;               /* size of segment (bytes) */
   4      time_t    shm_atime;          /* last attach time */
   5      time_t    shm_dtime;          /* last detach time */
   6      time_t    shm_ctime;          /* last change time */
   7      unsigned short shm_cpid;      /* pid of creator */
   8      unsigned short shm_lpid;      /* pid of last operator */
   9      short     shm_nattch;         /* no. of current attaches */
  10 };