aio_fsync(3) - Linux manual page (original) (raw)

aiofsync(3) Library Functions Manual aiofsync(3)

NAME top

   aio_fsync - asynchronous file synchronization

LIBRARY top

   Real-time library (_librt_, _-lrt_)

SYNOPSIS top

   **#include <aio.h>**

   **int aio_fsync(int** _op_**, struct aiocb ***_aiocbp_**);**

DESCRIPTION top

   The **aio_fsync**() function does a sync on all outstanding
   asynchronous I/O operations associated with _aiocbp->aiofildes_.
   (See [aio(7)](../man7/aio.7.html) 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)](../man2/fsync.2.html), and if
   _op_ is **O_DSYNC**, this call is the asynchronous analog of
   [fdatasync(2)](../man2/fdatasync.2.html).

   Note that this is a request only; it does not wait for I/O
   completion.

   Apart from _aiofildes_, the only field in the structure pointed to
   by _aiocbp_ that is used by this call is the _aiosigevent_ field (a
   _sigevent_ structure, described in [sigevent(3type)](../man3/sigevent.3type.html)), 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](../man3/errno.3.html)_ is set to
   indicate the error.

ERRORS top

   **EAGAIN** Out of resources.

   **EBADF** _aiofildes_ 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 top

   For an explanation of the terms used in this section, see
   [attributes(7)](../man7/attributes.7.html).
   ┌──────────────────────────────────────┬───────────────┬─────────┐
   │ **Interface** │ **Attribute** │ **Value** │
   ├──────────────────────────────────────┼───────────────┼─────────┤
   │ **aio_fsync**()                          │ Thread safety │ MT-Safe │
   └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

   POSIX.1-2008.

HISTORY top

   glibc 2.1.  POSIX.1-2001.

SEE ALSO top

   [aio_cancel(3)](../man3/aio%5Fcancel.3.html), [aio_error(3)](../man3/aio%5Ferror.3.html), [aio_read(3)](../man3/aio%5Fread.3.html), [aio_return(3)](../man3/aio%5Freturn.3.html),
   [aio_suspend(3)](../man3/aio%5Fsuspend.3.html), [aio_write(3)](../man3/aio%5Fwrite.3.html), [lio_listio(3)](../man3/lio%5Flistio.3.html), [aio(7)](../man7/aio.7.html),
   [sigevent(3type)](../man3/sigevent.3type.html)

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Linux man-pages 6.10 2024-07-23 aiofsync(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)