diff options
Diffstat (limited to 'winsup/cygwin/include/sys/file.h')
| -rw-r--r-- | winsup/cygwin/include/sys/file.h | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/winsup/cygwin/include/sys/file.h b/winsup/cygwin/include/sys/file.h index dbf2ea88a..af07df4cf 100644 --- a/winsup/cygwin/include/sys/file.h +++ b/winsup/cygwin/include/sys/file.h @@ -11,20 +11,44 @@ ** 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 <sys/cdefs.h> #include <fcntl.h> -#define L_SET 0 -#define L_CURR 1 -#define L_INCR 1 -#define L_XTND 2 +/* 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 + +/* Operations for flock() function */ +#define LOCK_SH 1 /* Shared lock. */ +#define LOCK_EX 2 /* Exclusive lock. */ +#define LOCK_NB 4 /* Don't block when locking. */ +#define LOCK_UN 8 /* Unlock. */ +/* Operations for access function */ #define F_OK 0 /* does file exist */ -#define X_OK 1 /* is it executable by caller */ +#define X_OK 1 /* is it executable or searchable by caller */ #define W_OK 2 /* is it writable by caller */ #define R_OK 4 /* is it readable by caller */ +/* Apply or remove an advisory lock on the file fd refers to. */ +__BEGIN_DECLS + +int _EXFUN(flock, (int, int)); + +__END_DECLS + #endif |