94 lines
2.6 KiB
Groff
94 lines
2.6 KiB
Groff
.\" Copyright (c) 1999 Softweyr LLC.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY Softweyr LLC AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL Softweyr LLC OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 2, 1999
|
|
.Dt AIO_ERROR 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm aio_error
|
|
.Nd retrieve error status of asynchronous I/O operation (REALTIME)
|
|
.Sh SYNOPSIS
|
|
.Fd #include <aio.h>
|
|
.Ft int
|
|
.Fn aio_error "struct aiocb *iocb"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn aio_error
|
|
function returns the error status of the asynchronous I/O request
|
|
associated with the structure pointed to by
|
|
.Ar iocb .
|
|
.Sh RETURN VALUES
|
|
If the asynchronous I/O request has completed successfully,
|
|
.Fn aio_error
|
|
returns 0. If the request has not yet completed,
|
|
.Dv EINPROGRESS
|
|
is returned. If the request has completed unsuccessfully the error
|
|
status is returned as described in
|
|
.Xr read 2 ,
|
|
.Xr write 2 ,
|
|
or
|
|
.Xr fsync 2
|
|
is returned.
|
|
On failure,
|
|
.Fn aio_error
|
|
returns
|
|
.Dv -1
|
|
and sets
|
|
.Dv errno
|
|
to indicate the error condition.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn aio_error
|
|
function will fail if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EINVAL
|
|
.Ar iocb
|
|
does not reference an outstanding asynchronous I/O request.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr aio_cancel 2 ,
|
|
.Xr aio_read 2 ,
|
|
.Xr aio_return 2 ,
|
|
.Xr aio_suspend 2 ,
|
|
.Xr aio_write 2 ,
|
|
.Xr fsync 2 ,
|
|
.Xr read 2 ,
|
|
.Xr write 2 .
|
|
.Sh STANDARDS
|
|
.Fn aio_error
|
|
is expected to conform to the
|
|
.St -p1003.2
|
|
standard.
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
function first appeared in
|
|
.Fx 3.0 .
|
|
.Sh AUTHORS
|
|
This
|
|
manual page was written by
|
|
.An Wes Peters Aq wes@softweyr.com .
|