/* -*- 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 "connector.hxx"

#include <com/sun/star/io/IOException.hpp>

#include <utility>

using namespace ::osl;

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

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

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

namespace stoc_connector {

    template<class T>

    static void notifyListeners(SocketConnection * pCon, bool * notified, T t)

    {

        XStreamListener_hash_set listeners;

        {

            std::unique_lock guard(pCon->_mutex);

            if(!*notified)

            {

                *notified = true;

                listeners = pCon->_listeners;

            }

        }

        for(auto& listener : listeners)

            t(listener);

    }

Unexecuted instantiation: ctr_socket.cxx:void stoc_connector::notifyListeners<void (*)(com::sun::star::uno::Reference<com::sun::star::io::XStreamListener> const&)>(stoc_connector::SocketConnection*, bool*, void (*)(com::sun::star::uno::Reference<com::sun::star::io::XStreamListener> const&))

Unexecuted instantiation: ctr_socket.cxx:void stoc_connector::notifyListeners<stoc_connector::(anonymous namespace)::callError>(stoc_connector::SocketConnection*, bool*, stoc_connector::(anonymous namespace)::callError)

    static void callStarted(const Reference<XStreamListener>& xStreamListener)

    {

        xStreamListener->started();

    }

    namespace {

    struct callError {

        const Any & any;

        explicit callError(const Any & any);

        void operator () (const Reference<XStreamListener>& xStreamListener);

    };

    }

    callError::callError(const Any & aAny)

        : any(aAny)

    {

    }

    void callError::operator () (const Reference<XStreamListener>& xStreamListener)

    {

        xStreamListener->error(any);

    }

    static void callClosed(const Reference<XStreamListener>& xStreamListener)

    {

        xStreamListener->closed();

    }

    SocketConnection::SocketConnection( OUString sConnectionDescription ) :

        m_nStatus( 0 ),

        m_sDescription(std::move( sConnectionDescription )),

        _started(false),

        _closed(false),

        _error(false)

    {

        // make it unique

        m_sDescription += ",uniqueValue=";

        m_sDescription += OUString::number(

            sal::static_int_cast< sal_Int64 >(

                reinterpret_cast< sal_IntPtr >(&m_socket)) );

    }

    SocketConnection::~SocketConnection()

    {

    }

    void SocketConnection::completeConnectionString()

    {

        sal_Int32 nPort;

        nPort = m_socket.getPeerPort();

        m_sDescription +=

            ",peerPort=" + OUString::number( nPort ) +

            ",peerHost=" + m_socket.getPeerHost() +

            ",localPort=" + OUString::number( nPort ) +

            ",localHost=" + m_socket.getLocalHost( );

    }

    sal_Int32 SocketConnection::read( Sequence < sal_Int8 > & aReadBytes , sal_Int32 nBytesToRead )

    {

        if( ! m_nStatus )

        {

            notifyListeners(this, &_started, callStarted);

            if( aReadBytes.getLength() != nBytesToRead )

            {

                aReadBytes.realloc( nBytesToRead );

            }

            sal_Int32 i = m_socket.read( aReadBytes.getArray()  , aReadBytes.getLength() );

            if(i != nBytesToRead && m_socket.getError() != osl_Socket_E_None)

            {

                OUString message = "ctr_socket.cxx:SocketConnection::read: error - " +

                    m_socket.getErrorAsString();

                IOException ioException(message, static_cast<XConnection *>(this));

                Any any;

                any <<= ioException;

                notifyListeners(this, &_error, callError(any));

                throw ioException;

            }

            return i;

        }

        else

        {

            IOException ioException(u"ctr_socket.cxx:SocketConnection::read: error - connection already closed"_ustr, static_cast<XConnection *>(this));

            Any any;

            any <<= ioException;

            notifyListeners(this, &_error, callError(any));

            throw ioException;

        }

    }

    void SocketConnection::write( const Sequence < sal_Int8 > &seq )

    {

        if( ! m_nStatus )

        {

            if( m_socket.write( seq.getConstArray() , seq.getLength() ) != seq.getLength() )

            {

                OUString message = "ctr_socket.cxx:SocketConnection::write: error - " +

                    m_socket.getErrorAsString();

                IOException ioException(message, static_cast<XConnection *>(this));

                Any any;

                any <<= ioException;

                notifyListeners(this, &_error, callError(any));

                throw ioException;

            }

        }

        else

        {

            IOException ioException(u"ctr_socket.cxx:SocketConnection::write: error - connection already closed"_ustr, static_cast<XConnection *>(this));

            Any any;

            any <<= ioException;

            notifyListeners(this, &_error, callError(any));

            throw ioException;

        }

    }

    void SocketConnection::flush( )

    {

    }

    void SocketConnection::close()

    {

            // ensure that close is called only once

        if( 1 == osl_atomic_increment( (&m_nStatus) ) )

        {

            m_socket.shutdown();

            notifyListeners(this, &_closed, callClosed);

        }

    }

    OUString SocketConnection::getDescription()

    {

        return m_sDescription;

    }

    // XConnectionBroadcaster

    void SAL_CALL SocketConnection::addStreamListener(const Reference<XStreamListener> & aListener)

    {

        std::unique_lock guard(_mutex);

        _listeners.insert(aListener);

    }

    void SAL_CALL SocketConnection::removeStreamListener(const Reference<XStreamListener> & aListener)

    {

        std::unique_lock guard(_mutex);

        _listeners.erase(aListener);

    }

}

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