| /* Provide a more complete sys/file.h. |
| |
| Copyright (C) 2007-2020 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, 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 */ |