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AIO_FSYNC(3) Linux Programmer's Manual AIO_FSYNC(3)
aio_fsync - asynchronous file synchronization
#include <aio.h>
int aio_fsync(int op, struct aiocb *aiocbp);
Link with -lrt.
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(7)), which indicates
the desired type of asynchronous notification at completion. All
other fields are ignored.
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.
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.
The aio_fsync() function is available since glibc 2.1.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│aio_fsync() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008.
aio_cancel(3), aio_error(3), aio_read(3), aio_return(3),
aio_suspend(3), aio_write(3), lio_listio(3), aio(7), sigevent(7)
This page is part of release 5.13 of the Linux man-pages project.
A description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
2021-03-22 AIO_FSYNC(3)
Pages that refer to this page: aio_cancel(3), aio_error(3), aio_read(3), aio_return(3), aio_suspend(3), aio_write(3), lio_listio(3), aio(7), sigevent(7), system_data_types(7)
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