centos man page for aio_fsync

AIO_FSYNC(3)						     Linux Programmer's Manual						      AIO_FSYNC(3)

NAME
       aio_fsync - asynchronous file synchronization

SYNOPSIS
       #include <aio.h>

       int aio_fsync(int op, struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION
       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.

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
       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.

VERSIONS
       The aio_fsync() function is available since glibc 2.1.

CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

SEE ALSO
       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)

COLOPHON
       This  page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

								    2012-05-08							      AIO_FSYNC(3)