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.

EXAMPLES

       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

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       information   about   reporting   bugs,   and   the  latest  version  of  this  page,  can  be  found  at
       https://www.kernel.org/doc/man-pages/.

                                                   2020-06-09                                       AIO_ERROR(3)