1  /* O_*, F_*, FD_* bit values for the generic Linux ABI.
       2     Copyright (C) 2011-2023 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	_FCNTL_H
      20  # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
      21  #endif
      22  
      23  #include <bits/wordsize.h>
      24  
      25  #if __WORDSIZE == 64
      26  # define __O_LARGEFILE	0
      27  #endif
      28  
      29  struct flock
      30    {
      31      short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
      32      short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
      33  #ifndef __USE_FILE_OFFSET64
      34      __off_t l_start;	/* Offset where the lock begins.  */
      35      __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
      36  #else
      37      __off64_t l_start;	/* Offset where the lock begins.  */
      38      __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
      39  #endif
      40      __pid_t l_pid;	/* Process holding the lock.  */
      41    };
      42  
      43  #ifdef __USE_LARGEFILE64
      44  struct flock64
      45    {
      46      short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
      47      short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
      48      __off64_t l_start;	/* Offset where the lock begins.  */
      49      __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
      50      __pid_t l_pid;	/* Process holding the lock.  */
      51    };
      52  #endif
      53  
      54  /* Include generic Linux declarations.  */
      55  #include <bits/fcntl-linux.h>