Linux manual pages Section 3  

Name

aio_fsync — asynchronous file synchronization

Synopsis

#include <aio.h>
int aio_fsync( int op,
  struct aiocb *aiocbp);
 
[Note] Note

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.

ATTRIBUTES

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

Interface Attribute Value
aio_fsync() Thread safety MT-Safe

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 4.07 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 https://www.kernel.org/doc/man−pages/.


  Copyright (c) 2003 Andries Brouwer (aebcwi.nl)

%%%LICENSE_START(GPLv2+_DOC_FULL)
This is free documentation; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.

The GNU General Public License's references to "object code"
and "executables" are to be interpreted as the output of any
document formatting or typesetting system, including
intermediate and printed output.

This manual is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public
License along with this manual; if not, see
<http://www.gnu.org/licenses/>.
%%%LICENSE_END