sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds.h

   1 /* Generic implementation of the shared memory struct shmid_ds.
   2    Copyright (C) 2020-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_SHM_H
  20 # error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead."
  21 #endif
  22
  23 #if __TIMESIZE == 64
  24 # define __shmid64_ds shmid_ds
  25 #else
  26 struct __shmid64_ds
  27 {
  28   struct ipc_perm shm_perm;     /* operation permission struct */
  29   size_t shm_segsz;             /* size of segment in bytes */
  30   __time64_t shm_atime;         /* time of last shmat() */
  31   __time64_t shm_dtime;         /* time of last shmdt() */
  32   __time64_t shm_ctime;         /* time of last change by shmctl() */
  33   __pid_t shm_cpid;             /* pid of creator */
  34   __pid_t shm_lpid;             /* pid of last shmop */
  35   shmatt_t shm_nattch;          /* number of current attaches */
  36 };
  37 #endif