Section: POSIX Programmer's Manual (3P)
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.
--- retrieve errors status for an asynchronous I/O operation
int aio_error(const struct aiocb *aiocbp);
function shall return the error status associated with the
structure referenced by the
argument. The error status for an asynchronous I/O operation is the
value that would be set by the corresponding
operation. If the operation has not yet completed, then the error
status shall be equal to
structure pointed to by
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
shall be returned. If the asynchronous I/O operation has not yet
shall be returned.
function fails, it shall return -1 and set
to indicate the error.
function may fail if:
argument does not refer to an asynchronous operation whose return
status has not yet been retrieved.
The following sections are informative.
The Base Definitions volume of POSIX.1-2008,
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
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