sysdeps/unix/sysv/linux/x86/bits/fcntl.h

   1 /* O_*, F_*, FD_* bit values for Linux/x86.
   2    Copyright (C) 2001-2012 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _FCNTL_H
  20 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  21 #endif
  22
  23 #ifdef __x86_64__
  24 # define __O_LARGEFILE  0
  25 #else
  26 # define __O_LARGEFILE  0100000
  27 #endif
  28
  29 #ifdef __x86_64__
  30 /* Not necessary, we always have 64-bit offsets.  */
  31 # define F_GETLK64      5       /* Get record locking info.  */
  32 # define F_SETLK64      6       /* Set record locking info (non-blocking).  */
  33 # define F_SETLKW64     7       /* Set record locking info (blocking).  */
  34 #endif
  35
  36
  37 struct flock
  38   {
  39     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  40     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  41 #ifndef __USE_FILE_OFFSET64
  42     __off_t l_start;    /* Offset where the lock begins.  */
  43     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
  44 #else
  45     __off64_t l_start;  /* Offset where the lock begins.  */
  46     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  47 #endif
  48     __pid_t l_pid;      /* Process holding the lock.  */
  49   };
  50
  51 #ifdef __USE_LARGEFILE64
  52 struct flock64
  53   {
  54     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  55     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  56     __off64_t l_start;  /* Offset where the lock begins.  */
  57     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  58     __pid_t l_pid;      /* Process holding the lock.  */
  59   };
  60 #endif
  61
  62 /* Include generic Linux declarations.  */
  63 #include <bits/fcntl-linux.h>