| | 1 | /* Provide a more complete sys/file.h. |
| | 2 | |
| | 3 | Copyright (C) 2007-2012 Free Software Foundation, Inc. |
| | 4 | |
| | 5 | This program is free software; you can redistribute it and/or modify |
| | 6 | it under the terms of the GNU Lesser General Public License as published by |
| | 7 | the Free Software Foundation; either version 2, or (at your option) |
| | 8 | any later version. |
| | 9 | |
| | 10 | This program 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 |
| | 13 | GNU Lesser General Public License for more details. |
| | 14 | |
| | 15 | You should have received a copy of the GNU Lesser General Public License |
| | 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| | 17 | |
| | 18 | /* Written by Richard W.M. Jones. */ |
| | 19 | |
| | 20 | #ifndef _@GUARD_PREFIX@_SYS_FILE_H |
| | 21 | |
| | 22 | #if __GNUC__ >= 3 |
| | 23 | @PRAGMA_SYSTEM_HEADER@ |
| | 24 | #endif |
| | 25 | @PRAGMA_COLUMNS@ |
| | 26 | |
| | 27 | /* The include_next requires a split double-inclusion guard. */ |
| | 28 | #if @HAVE_SYS_FILE_H@ |
| | 29 | # @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@ |
| | 30 | #endif |
| | 31 | |
| | 32 | #ifndef _@GUARD_PREFIX@_SYS_FILE_H |
| | 33 | #define _@GUARD_PREFIX@_SYS_FILE_H |
| | 34 | |
| | 35 | #ifndef LOCK_SH |
| | 36 | /* Operations for the 'flock' call (same as Linux kernel constants). */ |
| | 37 | # define LOCK_SH 1 /* Shared lock. */ |
| | 38 | # define LOCK_EX 2 /* Exclusive lock. */ |
| | 39 | # define LOCK_UN 8 /* Unlock. */ |
| | 40 | |
| | 41 | /* Can be OR'd in to one of the above. */ |
| | 42 | # define LOCK_NB 4 /* Don't block when locking. */ |
| | 43 | #endif |
| | 44 | |
| | 45 | /* The definition of _GL_WARN_ON_USE is copied here. */ |
| | 46 | |
| | 47 | #if @GNULIB_FLOCK@ |
| | 48 | /* Apply or remove advisory locks on an open file. |
| | 49 | Return 0 if successful, otherwise -1 and errno set. */ |
| | 50 | # if !@HAVE_FLOCK@ |
| | 51 | extern int flock (int fd, int operation); |
| | 52 | # endif |
| | 53 | #elif defined GNULIB_POSIXCHECK |
| | 54 | # undef flock |
| | 55 | # if HAVE_RAW_DECL_FLOCK |
| | 56 | _GL_WARN_ON_USE (flock, "flock is unportable - " |
| | 57 | "use gnulib module flock for portability"); |
| | 58 | # endif |
| | 59 | #endif |
| | 60 | |
| | 61 | |
| | 62 | #endif /* _@GUARD_PREFIX@_SYS_FILE_H */ |
| | 63 | #endif /* _@GUARD_PREFIX@_SYS_FILE_H */ |
HCoop / bpt / guile.git / blame_incremental