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AIO_FSYNC(3)               Linux Programmer's Manual              AIO_FSYNC(3)

NAME
       aio_fsync - asynchronous file synchronization

SYNOPSIS
       #include <aio.h>

       int aio_fsync(int op, struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION
       The  aio_fsync()  function  does a sync on all outstanding asynchronous
       I/O operations associated with aiocbp-_aio_fildes.  (See aio(7)  for  a
       description of the aiocb structure.)

       More  precisely,  if op is O_SYNC, then all currently queued I/O opera-
       tions shall be completed as if by a call of  fsync(2),  and  if  op  is
       O_DSYNC, this call is the asynchronous analog of fdatasync(2).

       Note that this is a request only; it does not wait for I/O completion.

       Apart  from  aio_fildes,  the only field in the structure pointed to by
       aiocbp that is used by this call is the aio_sigevent field (a  sigevent
       structure,  described in sigevent(7)), which indicates the desired type
       of asynchronous notification at completion.  All other fields  are  ig-
       nored.

RETURN VALUE
       On success (the sync request was successfully queued) this function re-
       turns 0.  On error, -1 is returned, and errno is set appropriately.

ERRORS
       EAGAIN Out of resources.

       EBADF  aio_fildes is not a valid file descriptor open for writing.

       EINVAL Synchronized I/O is not supported for this file, or  op  is  not
              O_SYNC or O_DSYNC.

       ENOSYS aio_fsync() is not implemented.

VERSIONS
       The aio_fsync() function is available since glibc 2.1.

ATTRIBUTES
       For  an  explanation  of  the  terms  used  in  this  section,  see at-
       tributes(7).

       +------------+---------------+---------+
       |Interface   | Attribute     | Value   |
       +------------+---------------+---------+
       |aio_fsync() | Thread safety | MT-Safe |
       +------------+---------------+---------+
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

SEE ALSO
       aio_cancel(3),  aio_error(3),  aio_read(3),   aio_return(3),   aio_sus-
       pend(3), aio_write(3), lio_listio(3), aio(7), sigevent(7)

COLOPHON
       This  page  is  part of release 5.05 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.

                                  2017-09-15                      AIO_FSYNC(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON