--  GHDL Run Time (GRT) - Utility functions for AVHPI.
--  Copyright (C) 2015 Tristan Gingold
--
--  GHDL is free software; you can redistribute it and/or modify it under
--  the terms of the GNU General Public License as published by the Free
--  Software Foundation; either version 2, or (at your option) any later
--  version.
--
--  GHDL 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 General Public License
--  for more details.
--
--  You should have received a copy of the GNU General Public License
--  along with GCC; see the file COPYING.  If not, write to the Free
--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--  02111-1307, USA.
--
--  As a special exception, if other files instantiate generics from this
--  unit, or you link this unit with other files to produce an executable,
--  this unit does not by itself cause the resulting executable to be
--  covered by the GNU General Public License. This exception does not
--  however invalidate any other reasons why the executable file might be
--  covered by the GNU Public License.

with Grt.Errors; use Grt.Errors;

package body Grt.Avhpi_Utils is
   function Get_Root_Entity (Root : VhpiHandleT) return VhpiHandleT
   is
      Hdl : VhpiHandleT;
      Error : AvhpiErrorT;
   begin
      Vhpi_Handle (VhpiDesignUnit, Root, Hdl, Error);
      if Error /= AvhpiErrorOk then
         Internal_Error ("VhpiDesignUnit");
      end if;

      case Vhpi_Get_Kind (Hdl) is
         when VhpiArchBodyK =>
            Vhpi_Handle (VhpiPrimaryUnit, Hdl, Hdl, Error);
            if Error /= AvhpiErrorOk then
               Internal_Error ("VhpiPrimaryUnit");
            end if;
         when others =>
            Internal_Error ("get_root_entity");
      end case;
      return Hdl;
   end Get_Root_Entity;

   function Name_Compare (Handle : VhpiHandleT;
                          Name : String;
                          Property : VhpiStrPropertyT := VhpiNameP)
                         return Boolean
   is
      Obj_Name : String (1 .. Name'Length);
      Len : Natural;
   begin
      Vhpi_Get_Str (Property, Handle, Obj_Name, Len);
      return Len = Name'Length and then Obj_Name = Name;
   end Name_Compare;

end Grt.Avhpi_Utils;


