oracular (3) nbd_aio_is_processing.3.gz

NAME

       nbd_aio_is_processing - check if the connection is processing a command

SYNOPSIS

        #include <libnbd.h>

        int nbd_aio_is_processing (
              struct nbd_handle *h
            );

DESCRIPTION

       Return true if this connection is connected to the NBD server, the handshake has completed, and the
       connection is processing commands (either writing out a request or reading a reply).

       Note the ready state (nbd_aio_is_ready(3)) is not included.  In the ready state commands may be in flight
       (the server is processing them), but libnbd is not processing them.

RETURN VALUE

       This call returns a boolean value.

ERRORS

       This function does not fail.

       The following parameters must not be NULL: "h".  For more information see "Non-NULL parameters" in
       libnbd(3).

VERSION

       This function first appeared in libnbd 1.0.

       If you need to test if this function is available at compile time check if the following macro is
       defined:

        #define LIBNBD_HAVE_NBD_AIO_IS_PROCESSING 1

SEE ALSO

       nbd_aio_is_ready(3), nbd_create(3), libnbd(3).

AUTHORS

       Eric Blake

       Richard W.M. Jones

COPYRIGHT

       Copyright Red Hat

LICENSE

       This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
       General Public License as published by the Free Software Foundation; either version 2 of the License, or
       (at your option) any later version.

       This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
       Public License for more details.

       You should have received a copy of the GNU Lesser General Public License along with this library; if not,
       write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA