suse man page for aio_error

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 correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME
       aio_error - retrieve errors status for an asynchronous I/O operation (REALTIME)

SYNOPSIS
       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

DESCRIPTION
       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].

RETURN VALUE
       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.

ERRORS
       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
       None.

APPLICATION USAGE
       The aio_error() function is part of the Asynchronous Input and Output option and need not be available on all implementations.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       aio_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>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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)