mem_alloc

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// -*- Mode: C++ -*-
// vim:ft=cpp
/*
 * Copyright (C) 2014-2016, 2019, 2021 Kernkonzept GmbH.
 * Author(s): Alexander Warg <alexander.warg@kernkonzept.com>
 */
/*
 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
 *               Alexander Warg <warg@os.inf.tu-dresden.de>,
 *               Torsten Frenzel <frenzel@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/capability>
#include <l4/sys/factory>
 
namespace L4Re {
class Dataspace;
 
// MISSING:
// * alignment constraints
// * shall we support superpages in noncont memory?
 
class L4_EXPORT Mem_alloc :
  public L4::Kobject_t<Mem_alloc, L4::Factory, L4::PROTO_EMPTY>
{
public:
  enum Mem_alloc_flags
  {
    Continuous   = 0x01,  
    Pinned       = 0x02,  
    Super_pages  = 0x04,  
    Fixed_paddr  = 0x08,  
  };
 
  long alloc(long size, L4::Cap<Dataspace> mem,
             unsigned long flags = 0, unsigned long align = 0,
             l4_addr_t paddr = 0) const noexcept;
};
 
};