This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
The aio_error() function shall return the error status associated
with the aiocb structure referenced by the aiocbp argument. The error
status for an asynchronous I/O operation is the errno value that
would be set by the corresponding read(), write(), fdatasync(), or
fsync() operation. If the operation has not yet completed, then the
error status shall be equal to [EINPROGRESS].
If the aiocb structure pointed to by aiocbp is not associated with an
operation that has been scheduled, the results are undefined.
If the asynchronous I/O operation has completed successfully, then 0
shall be returned. If the asynchronous operation has completed
unsuccessfully, then the error status, as described for read(),
write(), fdatasync(), and fsync(), shall be returned. If the
asynchronous I/O operation has not yet completed, then [EINPROGRESS]
shall be returned.
If the aio_error() function fails, it shall return −1 and set errno
to indicate the error.
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
IEEE/The Open Group 2013 AIO_ERROR(3P)