NAME
aio_fsync - asynchronous file synchronization
SYNOPSIS
#include <aio.h>
I int aio_fsync(int op , struct aiocb * aiocbp );
DESCRIPTION
The
R aio_fsync ()
function does a sync on all outstanding asynchronous I/O operations
associated with
R aiocbp->aio_fildes .
More precisely, if
op
is
R O_SYNC ,
then all currently queued I/O operations shall be
completed as if by a call of
fsync(2),
and if
op
is
R O_DSYNC ,
this call is the asynchronous analog of
fdatasync(2).
Note that this is a request only this call 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 struct sigevent) that indicates the desired type of
asynchronous notification at completion.
All other fields are ignored.
RETURN VALUE
On success (the sync request was successfully queued)
this function returns 0.
On error -1 is returned, and
errno
is set appropriately.
ERRORS
EBADF
aio_fildes
is not a valid file descriptor open for writing.
EINVAL
No synchronized I/O for this file is supported, or
op
is not
O_SYNC
or
R O_DSYNC .
CONFORMING TO
POSIX.1-2001
SEE ALSO
