aio_error(3p) - phpMan

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.
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() opera-
       tion.  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 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)