haiku/headers/posix/fcntl.h
Axel Dörfler eb11b67370 Added a preliminary sys/types.h that just includes ktypes.h for now.
Changed other headers to include sys/types.h rather than ktypes.h.
Added a license reference at the beginning of those files.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@840 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-08-20 11:10:51 +00:00

93 lines
2.4 KiB
C

#ifndef _FCNTL_H
#define _FCNTL_H
/*
** Distributed under the terms of the OpenBeOS License.
*/
#include <sys/types.h>
#include <sys/stat.h>
/* commands that can be passed to fcntl */
#define F_DUPFD 0x0001
#define F_GETFD 0x0002
#define F_SETFD 0x0004
#define F_GETFL 0x0008
#define F_SETFL 0x0010
#define F_GETLK 0x0020
#define F_RDLCK 0x0040
#define F_SETLK 0x0080
#define F_SETLKW 0x0100
#define F_UNLCK 0x0200
#define F_WRLCK 0x0400
#if __GNUC__
# define FD_CLOEXEC 1 /* Close on exec. */
#else
# define FD_CLOEXEC 0x0800
#endif
/* flags for open() */
#define O_RDONLY 0 /* read only */
#define O_WRONLY 1 /* write only */
#define O_RDWR 2 /* read and write */
#define O_RWMASK 3 /* Mask to get open mode */
#define O_CLOEXEC 0x0040 /* close fd on exec */
#define O_NONBLOCK 0x0080 /* non blocking io */
#define O_EXCL 0x0100 /* exclusive creat */
#define O_CREAT 0x0200 /* create and open file */
#define O_TRUNC 0x0400 /* open with truncation */
#define O_APPEND 0x0800 /* to end of file */
#define O_NOCTTY 0x1000 /* currently unsupported */
#define O_NOTRAVERSE 0x2000 /* do not traverse leaf link */
#define O_ACCMODE 0x0003 /* currently unsupported */
#define O_TEXT 0x4000 /* CR-LF translation */
#define O_BINARY 0x8000 /* no translation */
// currently not implemented additions:
#define O_NOFOLLOW 0x00010000
/* should we implement this? it's similar to O_NOTRAVERSE but will fail on symlinks */
#define O_NOCACHE 0x00020000 /* doesn't use the file system cache if possible */
#define O_DIRECT O_DIRECT
#define O_SHLOCK 0x00040000
#define O_EXLOCK 0x00080000
#define O_FSYNC 0x10000000
/* advisory file locking */
struct flock {
short l_type;
short l_whence;
off_t l_start;
off_t l_len;
pid_t l_pid;
};
#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 */
#define S_IREAD 0x0100 /* owner may read */
#define S_IWRITE 0x0080 /* owner may write */
#ifdef __cplusplus
extern "C" {
#endif
extern int creat(const char *path, mode_t mode);
extern int open(const char *pathname, int oflags, ...);
/* the third argument is the permissions of the created file when O_CREAT
is passed in oflags */
extern int fcntl(int fd, int op, ...);
extern int flock(int fd, int op);
#ifdef __cplusplus
}
#endif
#endif /* _FCNTL_H */