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AIO_ERROR(3)               Linux Programmer's Manual              AIO_ERROR(3)
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
       For  an  explanation  of  the  terms  used   in   this   section,   see
       attributes(7).
       +------------+---------------+---------+
       |Interface   | Attribute     | Value   |
       +------------+---------------+---------+
       |aio_error() | Thread safety | MT-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_sus-
       pend(3), aio_write(3), lio_listio(3), aio(7)
COLOPHON
       This page is part of release 4.15 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at
       https://www.kernel.org/doc/man-pages/.
                                  2015-03-02                      AIO_ERROR(3)