inhibitor

// vim:set ft=cpp: -*- Mode: C++ -*-
/*
 * (c) 2014 Steffen Liebergeld <steffen.liebergeld@kernkonzept.com>
 *
 * This file is licensed under the terms of the GNU Lesser General
 * Public License 2.1.
 * See the file COPYING-LGPL-2.1 for details.
 */
#pragma once
 
#include <l4/sys/capability>
#include <l4/sys/cxx/ipc_iface>
#include <l4/sys/cxx/ipc_string>
#include <l4/re/protocols.h>
 
namespace L4Re {
 
class Inhibitor :
  public L4::Kobject_t<Inhibitor, L4::Kobject, L4RE_PROTO_INHIBITOR>
{
public:
  enum
  {
    Name_max = 20 
  };
 
  L4_INLINE_RPC(long, acquire, (l4_umword_t id, L4::Ipc::String<> reason));
 
  L4_INLINE_RPC(long, release, (l4_umword_t id));
 
  long next_lock_info(char *name, unsigned len, l4_mword_t current_id = -1,
                      l4_utcb_t *utcb = l4_utcb())
  {
    L4::Ipc::String<char> name_buf(len , name);
    long r = next_lock_info_t::call(c(), &current_id, name_buf, utcb);
    if (r < 0)
      return r;
 
    return current_id;
  }
 
  L4_INLINE_RPC_NF(long, next_lock_info, (L4::Ipc::In_out<l4_mword_t *> current_id,
                                          L4::Ipc::String<char> &name));
 
  typedef L4::Typeid::Rpcs<acquire_t, release_t, next_lock_info_t> Rpcs;
};
 
}