aio_fsync(3)

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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13       Link with -lrt.
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DESCRIPTION

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

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

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

43       POSIX.1-2001.
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COLOPHON

50       This page is part of release 3.25 of the Linux  man-pages  project.   A
51       description  of  the project, and information about reporting bugs, can
52       be found at http://www.kernel.org/doc/man-pages/.
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56                                  2003-11-14                      AIO_FSYNC(3)