| /* This is file FILE.H */ |
| /* |
| ** Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954 |
| ** |
| ** This file is distributed under the terms listed in the document |
| ** "copying.dj", available from DJ Delorie at the address above. |
| ** A copy of "copying.dj" should accompany this file; if not, a copy |
| ** should be available from where this file was obtained. This file |
| ** may not be distributed without a verbatim copy of "copying.dj". |
| ** |
| ** This file is distributed WITHOUT ANY WARRANTY; without even the implied |
| ** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| /* |
| * 2003-11-27 Nicholas Wourms <nwourms@netscape.net>: |
| * |
| * Include sys/cdefs.h. Add function prototype for flock(). |
| * Add some comments from BSD's header for further clarity. |
| * (L_SET, L_CURR, L_INCR, L_XTND): Redefine as the macros |
| * SEEK_SET, SEEK_CUR, SEEK_CUR, & SEEK_END respectively. |
| * (LOCK_SH,LOCK_EX,LOCK_NB,LOCK_UN): New macros for flock(). |
| */ |
| #ifndef _FILE_H_ |
| #define _FILE_H_ |
| |
| #include <fcntl.h> |
| |
| /* Whence values for lseek(); renamed by POSIX 1003.1 */ |
| #define L_SET SEEK_SET |
| #define L_CURR SEEK_CUR |
| #define L_INCR SEEK_CUR |
| #define L_XTND SEEK_END |
| |
| /* Including <sys/file.h> always defines flock & macros. */ |
| #if __BSD_VISIBLE - 0 == 0 |
| |
| #define LOCK_SH 0x01 /* shared file lock */ |
| #define LOCK_EX 0x02 /* exclusive file lock */ |
| #define LOCK_NB 0x04 /* don't block when locking */ |
| #define LOCK_UN 0x08 /* unlock file */ |
| |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif |
| |
| extern int flock _PARAMS ((int, int)); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
| |
| #endif |
