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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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#ifndef INCLUDED_BRIDGES_CPP_UNO_SHARED_BRIDGE_HXX
#define INCLUDED_BRIDGES_CPP_UNO_SHARED_BRIDGE_HXX

#include "osl/interlck.h"
#include "sal/types.h"
#include "typelib/typedescription.h"
#include "uno/environment.h"
#include "uno/mapping.h"

namespace bridges { namespace cpp_uno { namespace shared {

// private:
extern "C" typedef void SAL_CALL FreeMapping(uno_Mapping *);
FreeMapping freeMapping;

// private:
extern "C"
typedef void SAL_CALL AcquireMapping(uno_Mapping *);
AcquireMapping acquireMapping;

// private:
extern "C"
typedef void SAL_CALL ReleaseMapping(uno_Mapping *);
ReleaseMapping releaseMapping;

// private:
extern "C" typedef void SAL_CALL Cpp2unoMapping(
    uno_Mapping *, void **, void *, typelib_InterfaceTypeDescription *);
Cpp2unoMapping cpp2unoMapping;

// private:
extern "C" typedef void SAL_CALL Uno2cppMapping(
    uno_Mapping *, void **, void *, typelib_InterfaceTypeDescription *);
Uno2cppMapping uno2cppMapping;

/**
 * Holding environments and mappings.
 */
class Bridge {
public:
    // Interface for generic/component.cxx:

    static uno_Mapping * createMapping(
        uno_ExtEnvironment * pCppEnv, uno_ExtEnvironment * pUnoEnv,
        bool bExportCpp2Uno) SAL_THROW(());

    // Interface for Cpp/UnoInterfaceProxy:

    void acquire() SAL_THROW(());
    void release() SAL_THROW(());

    // 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 &); // not implemented
    void operator =(Bridge); // not implemented

    Bridge(
        uno_ExtEnvironment * pCppEnv_, uno_ExtEnvironment * pUnoEnv_,
        bool bExportCpp2Uno_) SAL_THROW(());

    ~Bridge() SAL_THROW(());

    struct Mapping: public uno_Mapping {
        Bridge * pBridge;
    };

    oslInterlockedCount nRef;

    uno_ExtEnvironment * pCppEnv;
    uno_ExtEnvironment * pUnoEnv;

    Mapping aCpp2Uno;
    Mapping aUno2Cpp;

    bool bExportCpp2Uno;

    friend void SAL_CALL freeMapping(uno_Mapping * pMapping);

    friend void SAL_CALL acquireMapping(uno_Mapping * pMapping);

    friend void SAL_CALL releaseMapping(uno_Mapping * pMapping);

    friend void SAL_CALL cpp2unoMapping(
        uno_Mapping * pMapping, void ** ppUnoI, void * pCppI,
        typelib_InterfaceTypeDescription * pTypeDescr);

    friend void SAL_CALL uno2cppMapping(
        uno_Mapping * pMapping, void ** ppCppI, void * pUnoI,
        typelib_InterfaceTypeDescription * pTypeDescr);
};

} } }

#endif