1AIO_FSYNC(3)               Linux Programmer's Manual              AIO_FSYNC(3)
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NAME

6       aio_fsync - asynchronous file synchronization
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SYNOPSIS

9       #include <aio.h>
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11       int aio_fsync(int op, struct aiocb *aiocbp);
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DESCRIPTION

15       The  aio_fsync()  function  does a sync on all outstanding asynchronous
16       I/O operations associated with aiocbp->aio_fildes.
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18       More precisely, if op is O_SYNC, then all currently queued  I/O  opera‐
19       tions  shall  be  completed  as  if by a call of fsync(2), and if op is
20       O_DSYNC, this call is the asynchronous analog  of  fdatasync(2).   Note
21       that  this  is a request only — this call does not wait for I/O comple‐
22       tion.
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24       Apart from aio_fildes the only field in the  structure  pointed  to  by
25       aiocbp  that  is  used by this call is the aio_sigevent field (a struct
26       sigevent) that indicates the desired type of asynchronous  notification
27       at completion.  All other fields are ignored.
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RETURN VALUE

30       On  success  (the  sync  request was successfully queued) this function
31       returns 0. On error -1 is returned, and errno is set appropriately.
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ERRORS

34       EAGAIN Out of resources.
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36       EBADF  aio_fildes is not a valid file descriptor open for writing.
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38       EINVAL No synchronized I/O for this file is supported,  or  op  is  not
39              O_SYNC or O_DSYNC.
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CONFORMING TO

42       POSIX.1-2001
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SEE ALSO

45       aio_cancel(3),   aio_error(3),   aio_read(3),  aio_return(3),  aio_sus‐
46       pend(3), aio_write(3)
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50                                  2003-11-14                      AIO_FSYNC(3)
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