NAME

       nbd_set_debug - set or clear the debug flag

SYNOPSIS

        #include <libnbd.h>

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

DESCRIPTION

       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.

RETURN VALUE

       If the call is successful the function returns 0.

ERRORS

       On error "-1" is returned.

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

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_SET_DEBUG 1

SEE ALSO

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

AUTHORS

       Eric Blake

       Richard W.M. Jones

COPYRIGHT

       Copyright (C) 2019 Red Hat Inc.

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