sysdeps/unix/sysv/linux/generic/bits/fcntl.h

   1 /* O_*, F_*, FD_* bit values for the generic Linux ABI.
   2    Copyright (C) 2011-2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library.  If not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _FCNTL_H
  21 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  22 #endif
  23
  24 #include <bits/wordsize.h>
  25
  26 #if __WORDSIZE == 64
  27 # define __O_LARGEFILE  0
  28 #endif
  29
  30 struct flock
  31   {
  32     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  33     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  34 #ifndef __USE_FILE_OFFSET64
  35     __off_t l_start;    /* Offset where the lock begins.  */
  36     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
  37 #else
  38     __off64_t l_start;  /* Offset where the lock begins.  */
  39     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  40 #endif
  41     __pid_t l_pid;      /* Process holding the lock.  */
  42   };
  43
  44 #ifdef __USE_LARGEFILE64
  45 struct flock64
  46   {
  47     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  48     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  49     __off64_t l_start;  /* Offset where the lock begins.  */
  50     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  51     __pid_t l_pid;      /* Process holding the lock.  */
  52   };
  53 #endif
  54
  55 /* Include generic Linux declarations.  */
  56 #include <bits/fcntl-linux.h>