trusty (3) aio_error.3posix.gz

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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  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.


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>


       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 .