PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

AIO_ERROR(3P)             POSIX Programmer's Manual            AIO_ERROR(3P)

PROLOG         top

       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.

NAME         top

       aio_error — retrieve errors status for an asynchronous I/O operation

SYNOPSIS         top

       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

DESCRIPTION         top

       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.

RETURN VALUE         top

       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.

ERRORS         top

       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.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       aio_cancel(3p), aio_fsync(3p), aio_read(3p), aio_return(3p),
       aio_write(3p), close(3p), exec(1p), exit(3p), fork(3p),
       lio_listio(3p), lseek(3p), read(3p)

       The Base Definitions volume of POSIX.1‐2008, aio.h(0p)

COPYRIGHT         top

       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
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                       AIO_ERROR(3P)