/* Reincarnation services for translators.

   Copyright (C) 2013 Free Software Foundation, Inc.

   Written by Justus Winter <4winter@informatik.uni-hamburg.de>

   This file might one day be a part of the GNU Hurd.

   This program 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.

   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <mach/mach_param.h>
#include "reincarnation.h"

error_t
reincarnation_set_port (task_t task, mach_port_t port)
{
  error_t err;

  mach_port_t *ports;
  size_t ports_len;
  err = mach_ports_lookup (task,
			   &ports, &ports_len);
  if (err)
    return err;

  ports[TASK_PORT_REGISTER_REINCARNATION] = port;

  err = mach_ports_register (task,
			     ports,
			     TASK_PORT_REGISTER_MAX);
  return err;
}

error_t
reincarnation_get_port (task_t task, mach_port_t *port)
{
  error_t err;

  mach_port_t *ports = NULL;
  size_t ports_len = 0;
  err = mach_ports_lookup (task,
			   &ports, &ports_len);
  if (err)
    return err;

  *port = ports[TASK_PORT_REGISTER_REINCARNATION];
  return 0;
}