aio_fsync(3) -- Linux man page
NAME
aio_fsync - asynchronous file synchronization
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.
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 - this call 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 struct sigevent) that 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 appropriately.
ERRORS
- EAGAIN
-
Out of resources.
- EBADF
-
aio_fildes
is not a valid file descriptor open for writing.
- EINVAL
-
No synchronized I/O for this file is supported, or
op
is not O_SYNC or O_DSYNC.
CONFORMING TO
POSIX 1003.1-2003
SEE ALSO
aio_cancel(3),
aio_error(3),
aio_read(3),
aio_return(3),
aio_suspend(3),
aio_write(3)
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