include/asm-parisc/shmbuf.h

   1 #ifndef _PARISC_SHMBUF_H
   2 #define _PARISC_SHMBUF_H
   3
   4 /*
   5  * The shmid64_ds structure for parisc 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
  14 struct shmid64_ds {
  15         struct ipc64_perm       shm_perm;       /* operation perms */
  16         unsigned int            __pad1;
  17         __kernel_time_t         shm_atime;      /* last attach time */
  18         unsigned int            __pad2;
  19         __kernel_time_t         shm_dtime;      /* last detach time */
  20         unsigned int            __pad3;
  21         __kernel_time_t         shm_ctime;      /* last change time */
  22         size_t                  shm_segsz;      /* size of segment (bytes) */
  23         __kernel_pid_t          shm_cpid;       /* pid of creator */
  24         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  25         unsigned int            shm_nattch;     /* no. of current attaches */
  26         unsigned int            __unused1;
  27         unsigned int            __unused2;
  28 };
  29
  30 #ifdef __LP64__
  31 #warning shminfo64 is an undocumented struct
  32 /* The 'unsigned int' (formerly 'unsigned long') data types below will
  33  * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on
  34  * a wide kernel, but if some of these values are meant to contain pointers
  35  * they may need to be 'long long' instead. -PB
  36  */
  37 #endif
  38 struct shminfo64 {
  39         unsigned int    shmmax;
  40         unsigned int    shmmin;
  41         unsigned int    shmmni;
  42         unsigned int    shmseg;
  43         unsigned int    shmall;
  44         unsigned int    __unused1;
  45         unsigned int    __unused2;
  46         unsigned int    __unused3;
  47         unsigned int    __unused4;
  48 };
  49
  50 #endif /* _PARISC_SHMBUF_H */