AIO_RETURN
Section: Linux Programmer's Manual (3)
Updated: 2021-03-22
Index
Return to Main Contents
NAME
aio_return - get return status of asynchronous I/O operation
SYNOPSIS
#include <aio.h>
ssize_t aio_return(struct aiocb *aiocbp);
Link with -lrt.
DESCRIPTION
The
aio_return()
function returns the final return status for the asynchronous I/O request
with control block pointed to by
aiocbp.
(See
aio(7)
for a description of the
aiocb
structure.)
This function should be called only once for any given request, after
aio_error(3)
returns something other than
EINPROGRESS.
RETURN VALUE
If the asynchronous I/O operation has completed, this function returns
the value that would have been returned in case of a synchronous
read(2),
write(2),
fsync(2),
or
fdatasync(2),
call.
On error, -1 is returned, and errno is set to indicate the error.
If the asynchronous I/O operation has not yet completed,
the return value and effect of
aio_return()
are undefined.
ERRORS
- EINVAL
-
aiocbp
does not point at a control block for an asynchronous I/O request
of which the return status has not been retrieved yet.
- ENOSYS
-
aio_return()
is not implemented.
VERSIONS
The
aio_return()
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_return()
| Thread safety | MT-Safe
|
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
EXAMPLES
See
aio(7).
SEE ALSO
aio_cancel(3),
aio_error(3),
aio_fsync(3),
aio_read(3),
aio_suspend(3),
aio_write(3),
lio_listio(3),
aio(7)
COLOPHON
This page is part of release 5.11 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/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- ATTRIBUTES
-
- CONFORMING TO
-
- EXAMPLES
-
- SEE ALSO
-
- COLOPHON
-
This document was created by
man2html,
using the manual pages.
Time: 06:22:46 GMT, May 09, 2021