aio_fsync(3) — Linux manual page

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)

COLOPHON

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Linux man-pages 6.9.1          2024-05-02                   aio_fsync(3)

Pages that refer to this page: aio_cancel(3), aiocb(3type), aio_error(3), aio_read(3), aio_return(3), aio_suspend(3), aio_write(3), lio_listio(3), aio(7)

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