HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| f240aacb LC |
1 | /* Provide a more complete sys/file.h. |
| 2 | ||
| 61cd9dc9 | 3 | Copyright (C) 2007-2010 Free Software Foundation, Inc. |
| f240aacb LC |
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, write to the Free Software Foundation, | |
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 18 | ||
| 19 | /* Written by Richard W.M. Jones. */ | |
| a927b6c1 | 20 | |
| f240aacb LC |
21 | #ifndef _GL_SYS_FILE_H |
| 22 | ||
| a927b6c1 | 23 | #if __GNUC__ >= 3 |
| f240aacb | 24 | @PRAGMA_SYSTEM_HEADER@ |
| a927b6c1 | 25 | #endif |
| f240aacb LC |
26 | |
| 27 | /* The include_next requires a split double-inclusion guard. */ | |
| a927b6c1 LC |
28 | #if @HAVE_SYS_FILE_H@ |
| 29 | # @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@ | |
| 30 | #endif | |
| f240aacb LC |
31 | |
| 32 | #ifndef _GL_SYS_FILE_H | |
| 33 | #define _GL_SYS_FILE_H | |
| 34 | ||
| 61cd9dc9 LC |
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. */ | |
| f240aacb LC |
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); | |
| f240aacb LC |
52 | # endif |
| 53 | #elif defined GNULIB_POSIXCHECK | |
| 54 | # undef flock | |
| 61cd9dc9 LC |
55 | # if HAVE_RAW_DECL_FLOCK |
| 56 | _GL_WARN_ON_USE (flock, "flock is unportable - " | |
| 57 | "use gnulib module flock for portability"); | |
| 58 | # endif | |
| f240aacb LC |
59 | #endif |
| 60 | ||
| 61 | ||
| 62 | #endif /* _GL_SYS_FILE_H */ | |
| 63 | #endif /* _GL_SYS_FILE_H */ |