/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include "IdentityMapping.hxx"

#include <typelib/typedescription.h>

#include <uno/mapping.h>

#include <uno/environment.hxx>

#include <utility>

#include <osl/interlck.h>

using namespace ::com::sun::star;

namespace {

struct IdentityMapping : public uno_Mapping

{

    sal_Int32        m_nRef;

    uno::Environment m_env;

    explicit IdentityMapping(uno::Environment aEnv);

};

}

extern "C"

{

static void s_free(uno_Mapping * pMapping)

{

    delete static_cast<IdentityMapping *>(pMapping);

}

static void s_acquire(uno_Mapping * pMapping)

{

    static OUString s_purpose;

    if (1 == osl_atomic_increment(&static_cast<IdentityMapping *>(pMapping)->m_nRef))

    {

        uno_registerMapping(

            &pMapping,

            s_free,

            static_cast<IdentityMapping *>(pMapping)->m_env.get(),

            static_cast<IdentityMapping *>(pMapping)->m_env.get(),

            s_purpose.pData);

    }

}

static void s_release(uno_Mapping * pMapping)

{

    if (!osl_atomic_decrement(&static_cast<IdentityMapping *>(pMapping )->m_nRef))

        uno_revokeMapping(pMapping);

}

static void s_mapInterface(uno_Mapping                       * pMapping,

                                    void                             ** ppOut,

                                    void                              * pInterface,

                                    SAL_UNUSED_PARAMETER typelib_InterfaceTypeDescription * /*pInterfaceTypeDescr*/)

{

    *ppOut = pInterface;

    if (pInterface)

    {

        IdentityMapping * that = static_cast<IdentityMapping *>(pMapping);

        (that->m_env.get()->pExtEnv->acquireInterface)(that->m_env.get()->pExtEnv, pInterface);

    }

}

}

IdentityMapping::IdentityMapping(uno::Environment aEnv)

    : m_nRef(0),

      m_env(std::move(aEnv))

{

    uno_Mapping::acquire        = s_acquire;

    uno_Mapping::release        = s_release;

    uno_Mapping::mapInterface   = s_mapInterface;

}

uno_Mapping * createIdentityMapping(uno::Environment const & rEnv)

{

    return new IdentityMapping(rEnv);

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */