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.

       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 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 struct sigevent) that 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 No synchronized I/O for this file is supported, or op is not O_SYNC or O_DSYNC.

CONFORMING TO
       POSIX.1-2001.

SEE ALSO
       aio_cancel(3), aio_error(3), aio_read(3), aio_return(3), aio_suspend(3), aio_write(3)

COLOPHON
       This page is part of release 3.25 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/.



                                                           2003-11-14                                               AIO_FSYNC(3)