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+'\" t
+.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl)
+.\"
+.\" SPDX-License-Identifier: GPL-2.0-or-later
+.\"
+.TH aio_error 3 2023-07-20 "Linux man-pages 6.05.01"
+.SH NAME
+aio_error \- get error status of asynchronous I/O operation
+.SH LIBRARY
+Real-time library
+.RI ( librt ", " \-lrt )
+.SH SYNOPSIS
+.nf
+.B "#include <aio.h>"
+.PP
+.BI "int aio_error(const struct aiocb *" aiocbp );
+.fi
+.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:
+.TP
+.B EINPROGRESS
+if the request has not been
+completed yet.
+.TP
+.B ECANCELED
+if the request was canceled.
+.TP
+.B 0
+if the request completed successfully.
+.TP
+.RB "> " 0
+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 ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.na
+.nh
+.BR aio_error ()
+T}	Thread safety	MT-Safe
+.TE
+.sp 1
+.SH STANDARDS
+POSIX.1-2008.
+.SH HISTORY
+glibc 2.1.
+POSIX.1-2001.
+.SH EXAMPLES
+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)