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/* Provide a more complete sys/file.h.
Copyright (C) 2007-2022 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Richard W.M. Jones. */
#ifndef _@GUARD_PREFIX@_SYS_FILE_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_SYS_FILE_H@
# @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@
#endif
#ifndef _@GUARD_PREFIX@_SYS_FILE_H
#define _@GUARD_PREFIX@_SYS_FILE_H
#ifndef LOCK_SH
/* 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
/* The definition of _GL_WARN_ON_USE is copied here. */
#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);
# endif
#elif defined GNULIB_POSIXCHECK
# undef flock
# if HAVE_RAW_DECL_FLOCK
_GL_WARN_ON_USE (flock, "flock is unportable - "
"use gnulib module flock for portability");
# endif
#endif
#endif /* _@GUARD_PREFIX@_SYS_FILE_H */
#endif /* _@GUARD_PREFIX@_SYS_FILE_H */
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