AIO_ERROR(3P) POSIX Programmer's Manual AIO_ERROR(3P)PROLOG
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.
NAMEaio_error - retrieve errors status for an asynchronous I/O operation
int aio_error(const struct aiocb *aiocbp);
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() opera‐
tion. If the operation has not yet completed, then the error status
shall be equal to [EINPROGRESS].
If the asynchronous I/O operation has completed successfully, then 0
shall be returned. If the asynchronous operation has completed unsuc‐
cessfully, 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.
The aio_error() function may fail if:
EINVAL The aiocbp argument does not refer to an asynchronous operation
whose return status has not yet been retrieved.
The following sections are informative.
The aio_error() function is part of the Asynchronous Input and Output
option and need not be available on all implementations.
SEE ALSOaio_cancel(), aio_fsync(), aio_read(), aio_return(), aio_write(),
close(), exec(), exit(), fork(), lio_listio(), lseek(), read() , the
Base Definitions volume of IEEE Std 1003.1-2001, <aio.h>
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 AIO_ERROR(3P)