1#define O_CREAT        0100
 2#define O_EXCL         0200
 3#define O_NOCTTY       0400
 4#define O_TRUNC       01000
 5#define O_APPEND      02000
 6#define O_NONBLOCK    04000
 7#define O_DSYNC      010000
 8#define O_SYNC     04010000
 9#define O_RSYNC    04010000
10#define O_DIRECTORY 0200000
11#define O_NOFOLLOW  0400000
12#define O_CLOEXEC  02000000
13
14#define O_ASYNC      020000
15#define O_DIRECT     040000
16#define O_LARGEFILE 0100000
17#define O_NOATIME  01000000
18#define O_PATH    010000000
19#define O_TMPFILE 020200000
20#define O_NDELAY O_NONBLOCK
21
22#define F_DUPFD  0
23#define F_GETFD  1
24#define F_SETFD  2
25#define F_GETFL  3
26#define F_SETFL  4
27
28#define F_GETLK  5
29#define F_SETLK  6
30#define F_SETLKW 7
31
32#define F_SETOWN 8
33#define F_GETOWN 9
34#define F_SETSIG 10
35#define F_GETSIG 11
36
37#define F_SETOWN_EX 15
38#define F_GETOWN_EX 16
39
40#define F_GETOWNER_UIDS 17
41
42#define POSIX_FADV_DONTNEED   6
43#define POSIX_FADV_NOREUSE    7