aio_fsync(3)

1AIO_FSYNC(3)               Linux Programmer's Manual              AIO_FSYNC(3)
2
3
4

NAME

6       aio_fsync - asynchronous file synchronization
7

SYNOPSIS

9       #include <aio.h>
10
11       int aio_fsync(int op, struct aiocb *aiocbp);
12
13       Link with -lrt.
14

DESCRIPTION

16       The  aio_fsync()  function  does a sync on all outstanding asynchronous
17       I/O operations associated with aiocbp->aio_fildes.  (See aio(7)  for  a
18       description of the aiocb structure.)
19
20       More  precisely,  if op is O_SYNC, then all currently queued I/O opera‐
21       tions shall be completed as if by a call of  fsync(2),  and  if  op  is
22       O_DSYNC, this call is the asynchronous analog of fdatasync(2).
23
24       Note that this is a request only; it does not wait for I/O completion.
25
26       Apart  from  aio_fildes,  the only field in the structure pointed to by
27       aiocbp that is used by this call is the aio_sigevent field (a  sigevent
28       structure,  described in sigevent(7)), which indicates the desired type
29       of asynchronous notification  at  completion.   All  other  fields  are
30       ignored.
31

RETURN VALUE

33       On  success  (the  sync  request was successfully queued) this function
34       returns 0.  On error, -1 is returned, and errno is set appropriately.
35

ERRORS

37       EAGAIN Out of resources.
38
39       EBADF  aio_fildes is not a valid file descriptor open for writing.
40
41       EINVAL Synchronized I/O is not supported for this file, or  op  is  not
42              O_SYNC or O_DSYNC.
43
44       ENOSYS aio_fsync() is not implemented.
45

VERSIONS

47       The aio_fsync() function is available since glibc 2.1.
48

ATTRIBUTES

50       For   an   explanation   of   the  terms  used  in  this  section,  see
51       attributes(7).
52
53       ┌────────────┬───────────────┬─────────┐
54       │Interface   │ Attribute     │ Value   │
55       ├────────────┼───────────────┼─────────┤
56       │aio_fsync() │ Thread safety │ MT-Safe │
57       └────────────┴───────────────┴─────────┘

CONFORMING TO

59       POSIX.1-2001, POSIX.1-2008.
60

COLOPHON

66       This  page  is  part of release 5.04 of the Linux man-pages project.  A
67       description of the project, information about reporting bugs,  and  the
68       latest     version     of     this    page,    can    be    found    at
69       https://www.kernel.org/doc/man-pages/.
70
71
72
73                                  2017-09-15                      AIO_FSYNC(3)