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/* Provide a more complete sys/file.h.

   Copyright (C) 2007-2008 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* Written by Richard W.M. Jones.  */
#ifndef _GL_SYS_FILE_H

# if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
# endif

/* The include_next requires a split double-inclusion guard.  */
# if @HAVE_SYS_FILE_H@
#  @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@
# endif

#ifndef _GL_SYS_FILE_H
#define _GL_SYS_FILE_H


#if @GNULIB_FLOCK@
/* Apply or remove advisory locks on an open file.
   Return 0 if successful, otherwise -1 and errno set.  */
# if !@HAVE_FLOCK@
extern int flock (int fd, int operation);

/* Operations for the 'flock' call (same as Linux kernel constants).  */
#define LOCK_SH 1       /* Shared lock.  */
#define LOCK_EX 2       /* Exclusive lock.  */
#define LOCK_UN 8       /* Unlock.  */

/* Can be OR'd in to one of the above.  */
#define LOCK_NB 4       /* Don't block when locking.  */

# endif
#elif defined GNULIB_POSIXCHECK
# undef flock
# define flock(fd,op)			       \
    (GL_LINK_WARNING ("flock is unportable - " \
                      "use gnulib module flock for portability"), \
     flock ((fd), (op)))
#endif


#endif /* _GL_SYS_FILE_H */
#endif /* _GL_SYS_FILE_H */
kc3-lang/gnulib/lib/sys_file.in.h

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lib/sys_file.in.h
