aio_error(3p) - phpMan

AIO_ERROR(P)                                                      AIO_ERROR(P)



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  com-
       pleted, 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  [EIN-
       PROGRESS] 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  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 .



POSIX                                2003                         AIO_ERROR(P)

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