AIO_FSYNC(3) Linux Programmers Manual AIO_FSYNC(3)
aio_fsync - asynchronous file synchronization
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.
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 this call does not wait for I/O comple
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.
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 No synchronized I/O for this file is supported, or op is not
O_SYNC or O_DSYNC.
aio_cancel(3), aio_error(3), aio_read(3), aio_return(3), aio_sus
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