.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl)

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.TH AIO_ERROR 3 2015-03-02  "" "Linux Programmer's Manual"

.SH NAME

aio_error \- get error status of asynchronous I/O operation

.SH SYNOPSIS

.B "#include <aio.h>"

.PP

.BI "int aio_error(const struct aiocb *" aiocbp );

.PP

Link with \fI\-lrt\fP.

.SH DESCRIPTION

The

.BR aio_error ()

function returns the error status for the asynchronous I/O request

with control block pointed to by

.IR aiocbp .

(See

.BR aio (7)

for a description of the

.I aiocb

structure.)

.SH RETURN VALUE

This function returns one of the following:

.IP * 3

.BR EINPROGRESS ,

if the request has not been

completed yet.

.IP *

.BR ECANCELED ,

if the request was canceled.

.IP *

0, if the request completed successfully.

.IP *

A positive error number, if the asynchronous I/O operation failed.

This is the same value that would have been stored in the

.I errno

variable in the case of a synchronous

.BR read (2),

.BR write (2),

.BR fsync (2),

or

.BR fdatasync (2)

call.

.SH ERRORS

.TP

.B EINVAL

.I aiocbp

does not point at a control block for an asynchronous I/O request

of which the return status (see

.BR aio_return (3))

has not been retrieved yet.

.TP

.B ENOSYS

.BR aio_error ()

is not implemented.

.SH VERSIONS

The

.BR aio_error ()

function is available since glibc 2.1.

.SH ATTRIBUTES

For an explanation of the terms used in this section, see

.BR attributes (7).

.TS

allbox;

lb lb lb

l l l.

Interface	Attribute	Value

T{

.BR aio_error ()

T}	Thread safety	MT-Safe

.TE

.SH CONFORMING TO

POSIX.1-2001, POSIX.1-2008.

.SH EXAMPLE

See

.BR aio (7).

.SH SEE ALSO

.BR aio_cancel (3),

.BR aio_fsync (3),

.BR aio_read (3),

.BR aio_return (3),

.BR aio_suspend (3),

.BR aio_write (3),

.BR lio_listio (3),

.BR aio (7)

.SH COLOPHON

This page is part of release 4.15 of the Linux

.I 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/.