/*

 *

 *    Copyright (c) 2020-2021 Project CHIP Authors

 *    Copyright (c) 2015-2017 Nest Labs, Inc.

 *

 *    Licensed 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 under the License.

 */

/**

 *    @file

 *      This file contains the basis class for all the various transport

 *      endpoint classes in the Inet layer, i.e. TCP and UDP.

 */

#pragma once

#include <inet/InetConfig.h>

#include <lib/core/ReferenceCounted.h>

#include <lib/support/DLLUtil.h>

namespace chip {

namespace System {

class Layer;

} // namespace System

namespace Inet {

template <typename EndPointType>

class EndPointManager;

template <typename EndPointType>

class EndPointDeletor;

/**

 * Basis of internet transport endpoint classes.

 */

template <typename EndPointType>

class DLL_EXPORT EndPointBasis : public ReferenceCounted<EndPointType, EndPointDeletor<EndPointType>>

{

public:

    using EndPoint = EndPointType;

    EndPointBasis(EndPointManager<EndPoint> & endPointManager) : mAppState(nullptr), mEndPointManager(endPointManager) {}

chip::Inet::EndPointBasis<chip::Inet::UDPEndPoint>::EndPointBasis(chip::Inet::EndPointManager<chip::Inet::UDPEndPoint>&)

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    EndPointBasis(EndPointManager<EndPoint> & endPointManager) : mAppState(nullptr), mEndPointManager(endPointManager) {}

chip::Inet::EndPointBasis<chip::Inet::TCPEndPoint>::EndPointBasis(chip::Inet::EndPointManager<chip::Inet::TCPEndPoint>&)

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    EndPointBasis(EndPointManager<EndPoint> & endPointManager) : mAppState(nullptr), mEndPointManager(endPointManager) {}

    /**

     *  Returns a reference to the endpoint fatory that owns this basis object.

     */

    EndPointManager<EndPoint> & GetEndPointManager() const { return mEndPointManager; }

chip::Inet::EndPointBasis<chip::Inet::UDPEndPoint>::GetEndPointManager() const

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    EndPointManager<EndPoint> & GetEndPointManager() const { return mEndPointManager; }

chip::Inet::EndPointBasis<chip::Inet::TCPEndPoint>::GetEndPointManager() const

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    EndPointManager<EndPoint> & GetEndPointManager() const { return mEndPointManager; }

    /**

     *  Returns a reference to the System::Layer associated with this object.

     */

    chip::System::Layer & GetSystemLayer() const { return mEndPointManager.SystemLayer(); }

chip::Inet::EndPointBasis<chip::Inet::UDPEndPoint>::GetSystemLayer() const

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    chip::System::Layer & GetSystemLayer() const { return mEndPointManager.SystemLayer(); }

chip::Inet::EndPointBasis<chip::Inet::TCPEndPoint>::GetSystemLayer() const

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    chip::System::Layer & GetSystemLayer() const { return mEndPointManager.SystemLayer(); }

    void * mAppState;

private:

    EndPointManager<EndPoint> & mEndPointManager; /**< Factory that owns this object. */

};

template <typename EndPointType>

class EndPointDeletor

{

public:

    static void Release(EndPointType * obj) { obj->GetEndPointManager().DeleteEndPoint(obj); }

chip::Inet::EndPointDeletor<chip::Inet::UDPEndPoint>::Release(chip::Inet::UDPEndPoint*)

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    static void Release(EndPointType * obj) { obj->GetEndPointManager().DeleteEndPoint(obj); }

chip::Inet::EndPointDeletor<chip::Inet::TCPEndPoint>::Release(chip::Inet::TCPEndPoint*)

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    static void Release(EndPointType * obj) { obj->GetEndPointManager().DeleteEndPoint(obj); }

};

} // namespace Inet

} // namespace chip