AIO_FSYNC(3) manual page
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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 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; 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 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
- 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_suspend(3)
, aio_write(3)
, lio_listio(3)
, aio(7)
, sigevent(7)
This
page is part of release 3.78 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 http://www.kernel.org/doc/man-pages/.
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