aio_fsync(3) — Linux manual page


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

       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
       to indicate the error.

ERRORS         top

       EAGAIN Out of resources.

       EBADF  aio_fildes is not a valid file descriptor open for

       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 5.13 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

                               2021-03-22                   AIO_FSYNC(3)

Pages that refer to this page: 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)system_data_types(7)