Provided by: manpages-dev_3.27-1ubuntu2_all
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
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
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 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_suspend(3), aio_write(3), sigevent(7)
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