The
aio_fsync() function does a sync on all outstanding asynchronous I/O operations
associated with
aiocbp->aio_fildes.
More precisely, if
op is O_SYNC, then all currently queued I/O operations 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 — 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.
