aio_fsync(3)               Library Functions Manual               aio_fsync(3)

NAME
       aio_fsync - asynchronous file synchronization

LIBRARY
       Real-time library (librt, -lrt)

SYNOPSIS
       #include <aio.h>

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

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(3type)), 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 to indicate the
       error.

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.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |aio_fsync ()                                | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+
STANDARDS
       POSIX.1-2008.

HISTORY
       glibc 2.1.  POSIX.1-2001.

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(3type)

Linux man-pages 6.7               2023-10-31                      aio_fsync(3)