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

       aio_fsync - asynchronous file synchronization

       #include <aio.h>

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

       Link with -lrt.

       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

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

       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.

       The aio_fsync() function is available since glibc 2.1.

       POSIX.1-2001, POSIX.1-2008.

       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)

       This page is part of release 3.74 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

                                  2012-05-08                      AIO_FSYNC(3)

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