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

NAME         top

       aio_fsync - asynchronous file synchronization

SYNOPSIS         top

       #include <aio.h>

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

       Link with -lrt.

DESCRIPTION         top

       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

       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         top

       On success (the sync request was successfully queued) this function
       returns 0.  On error, -1 is returned, and errno is set appropriately.

ERRORS         top

       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         top

       The aio_fsync() function is available since glibc 2.1.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see

       │Interface   Attribute     Value   │
       │aio_fsync() │ Thread safety │ MT-Safe │

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008.

SEE ALSO         top

       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         top

       This page is part of release 4.10 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

                                 2015-03-02                     AIO_FSYNC(3)