/* -*- 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 .

 */

#pragma once

#include <sal/config.h>

#include <atomic>

#include <cstddef>

#include <sal/types.h>

#include <typelib/typedescription.h>

#include <uno/environment.h>

#include <uno/mapping.h>

namespace bridges::cpp_uno::shared {

// private:

extern "C" void freeMapping(uno_Mapping *);

// private:

extern "C" void acquireMapping(uno_Mapping *);

// private:

extern "C" void releaseMapping(uno_Mapping *);

// private:

extern "C" void cpp2unoMapping(

    uno_Mapping *, void **, void *, typelib_InterfaceTypeDescription *);

// private:

extern "C" void uno2cppMapping(

    uno_Mapping *, void **, void *, typelib_InterfaceTypeDescription *);

/**

 * Holding environments and mappings.

 */

class Bridge {

public:

    // Interface for generic/component.cxx:

    static uno_Mapping * createMapping(

        uno_ExtEnvironment * pCppEnv, uno_ExtEnvironment * pUnoEnv,

        bool bExportCpp2Uno);

    // Interface for Cpp/UnoInterfaceProxy:

    void acquire();

    void release();

    // Interface for individual CPP--UNO bridges:

    uno_ExtEnvironment * getCppEnv() { return pCppEnv; }

    uno_ExtEnvironment * getUnoEnv() { return pUnoEnv; }

    uno_Mapping * getCpp2Uno() { return &aCpp2Uno; }

    uno_Mapping * getUno2Cpp() { return &aUno2Cpp; }

private:

    Bridge(Bridge const &) = delete;

    Bridge& operator =(const Bridge&) = delete;

    Bridge(

        uno_ExtEnvironment * pCppEnv_, uno_ExtEnvironment * pUnoEnv_,

        bool bExportCpp2Uno_);

    ~Bridge();

    struct Mapping: public uno_Mapping {

        Bridge * pBridge;

    };

    std::atomic<std::size_t> nRef;

    uno_ExtEnvironment * pCppEnv;

    uno_ExtEnvironment * pUnoEnv;

    Mapping aCpp2Uno;

    Mapping aUno2Cpp;

    bool bExportCpp2Uno;

    friend void freeMapping(uno_Mapping * pMapping);

    friend void acquireMapping(uno_Mapping * pMapping);

    friend void releaseMapping(uno_Mapping * pMapping);

    friend void cpp2unoMapping(

        uno_Mapping * pMapping, void ** ppUnoI, void * pCppI,

        typelib_InterfaceTypeDescription * pTypeDescr);

    friend void uno2cppMapping(

        uno_Mapping * pMapping, void ** ppCppI, void * pUnoI,

        typelib_InterfaceTypeDescription * pTypeDescr);

};

}

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