// vi:ft=cpp
/**
 * \file
 * \brief Type information server template.
 */
/*
 * (c) 2010 Alexander Warg <warg@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * This file is part of TUD:OS and distributed under the terms of the
 * GNU General Public License 2.
 * Please see the COPYING-GPL-2 file for details.
 *
 * As a special exception, you may use this file as part of a free software
 * library without restriction.  Specifically, if other files instantiate
 * templates or use macros or inline functions from this file, or you compile
 * this file and link it with other files to produce an executable, this
 * file 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 General Public License.
 */

#pragma once

#include <l4/sys/meta>
#include <l4/cxx/ipc_stream>

namespace L4 { namespace Util {

template<typename KO>
long handle_meta_request(L4::Ipc_iostream &ios)
{
  l4_umword_t op;
  ios >> op;
  switch (op)
    {
    case L4::Meta::O_num_ifaces: return 1;
    case L4::Meta::O_iface:
        {
          l4_umword_t ifx;
          ios >> ifx;
	  if (ifx > 0)
	    return -L4_ERANGE;

	  L4::Ipc::Varg_t<char const *> n(L4::kobject_typeid<KO>()->name());
	  L4::Ipc::Varg_t<l4_mword_t> p(L4::kobject_typeid<KO>()->proto());

	  ios << n << p;
	  return 0;
	}
    case L4::Meta::O_supports:
	{
	  l4_mword_t proto;
	  ios >> proto;

	  return L4::kobject_typeid<KO>()->has_proto(proto);
	}
    default:
      return -L4_ENOSYS;
    }
}

}}