AIO_ERROR
Section: Linux Programmer's Manual (3)
Updated: 2020-06-09
Page Index
NAME
aio_error - get error status of asynchronous I/O operation
SYNOPSIS
#include <aio.h>
int aio_error(const struct aiocb *aiocbp);
Link with -lrt.
DESCRIPTION
The
aio_error()
function returns the error status for the asynchronous I/O request
with control block pointed to by
aiocbp.
(See
aio(7)
for a description of the
aiocb
structure.)
RETURN VALUE
This function returns one of the following:
- *
-
EINPROGRESS,
if the request has not been
completed yet.
- *
-
ECANCELED,
if the request was canceled.
- *
-
0, if the request completed successfully.
- *
-
A positive error number, if the asynchronous I/O operation failed.
This is the same value that would have been stored in the
errno
variable in the case of a synchronous
read(2),
write(2),
fsync(2),
or
fdatasync(2)
call.
ERRORS
- EINVAL
-
aiocbp
does not point at a control block for an asynchronous I/O request
of which the return status (see
aio_return(3))
has not been retrieved yet.
- ENOSYS
-
aio_error()
is not implemented.
VERSIONS
The
aio_error()
function is available since glibc 2.1.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
aio_error()
| Thread safety | MT-Safe
|
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
EXAMPLES
See
aio(7).
SEE ALSO
aio_cancel(3),
aio_fsync(3),
aio_read(3),
aio_return(3),
aio_suspend(3),
aio_write(3),
lio_listio(3),
aio(7)
COLOPHON
This page is part of release 5.10 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/.