Provided by: libnbd-dev_1.2.2-1ubuntu2_amd64 bug


       nbd_set_debug - set or clear the debug flag


        #include <libnbd.h>

        int nbd_set_debug (struct nbd_handle *h, bool debug);


       Set or clear the debug flag.  When debugging is enabled, debugging messages from the
       library are printed to stderr, unless a debugging callback has been defined too (see
       nbd_set_debug_callback(3)) in which case they are sent to that function.  This flag
       defaults to false on newly created handles, except if "LIBNBD_DEBUG=1" is set in the
       environment in which case it defaults to true.


       If the call is successful the function returns 0.


       On error "-1" is returned.

       Refer to "ERROR HANDLING" in libnbd(3) for how to get further details of the error.


       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_SET_DEBUG 1


       nbd_set_handle_name(3), nbd_set_debug_callback(3), nbd_create(3), libnbd(3).


       Eric Blake

       Richard W.M. Jones


       Copyright (C) 2019 Red Hat Inc.


       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