(* wrappi -*- tuareg -*-
 * Copyright (C) 2011-2012 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
 *)

entry_point local
bool error ()
<<
  return w->internal.error != NULL;
>>

entry_point local
void clear_error ()
<<
  free (w->internal.error);
  w->internal.error = NULL;
  w->internal.errnum = 0;
  w->internal.error_func = NULL;
>>

entry_point local
static_string get_error ()
<<
  if (!w->internal.error) {
    set_error ("no error on handle: do not call this function unless 'wrap_error' returns true");
    return NULL;
  }
  return w->internal.error;
>>

entry_point local
int get_errno ()
<<
  if (!w->internal.error) {
    set_error ("no error on handle: do not call this function unless 'wrap_error' returns true");
    return -1;
  }
  return w->internal.errnum;
>>

entry_point local
static_string get_error_func ()
<<
  if (!w->internal.error) {
    set_error ("no error on handle: do not call this function unless 'wrap_error' returns true");
    return NULL;
  }
  return w->internal.error_func;
>>

(*
event error ???
*)