NAME

       aio_error - get error status of asynchronous I/O operation

SYNOPSIS

       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION

       The  aio_error()  function  returns the error status for the asynchronous I/O request with
       control block pointed  to  by  aiocbp.   (See  aio(7)  for  a  description  of  the  aiocb
       structure.)

RETURN VALUE

       This function returns one of the following:

       *  EINPROGRESS, if the request has not been completed yet.

       *  ECANCELED, if the request was canceled.

       *  0, if the request completed successfully.

       *  A  positive  error  number, if the asynchronous I/O operation failed.  This is the same
          value that would have been stored in the errno variable in the case  of  a  synchronous
          read(2), write(2), fsync(2), or fdatasync(2) call.

ERRORS

       EINVAL aiocbp  does  not point at a control block for an asynchronous I/O request of which
              the return status (see aio_return(3)) has not been retrieved yet.

       ENOSYS aio_error() is not implemented.

VERSIONS

       The aio_error() function is available since glibc 2.1.

ATTRIBUTES

   Multithreading (see pthreads(7))
       The aio_error() function is thread-safe.

CONFORMING TO

       POSIX.1-2001, POSIX.1-2008.

EXAMPLE

       See aio(7).

SEE ALSO

       aio_cancel(3), aio_fsync(3),  aio_read(3),  aio_return(3),  aio_suspend(3),  aio_write(3),
       lio_listio(3), aio(7)

COLOPHON

       This  page  is  part of release 3.54 of the Linux man-pages project.  A description of the
       project,    and    information    about    reporting    bugs,    can    be    found     at
       http://www.kernel.org/doc/man-pages/.

                                            2013-07-04                               AIO_ERROR(3)