Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 356 insertions, 0 deletions

diff --git a/io/source/acceptor/acc_socket.cxx b/io/source/acceptor/acc_socket.cxx
new file mode 100644
index 000000000..9700cd566
--- /dev/null
+++ b/io/source/acceptor/acc_socket.cxx
@@ -0,0 +1,356 @@
+/* -*- 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 "acceptor.hxx"
+
+#include <unordered_set>
+
+#include <osl/mutex.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <com/sun/star/connection/XConnection.hpp>
+#include <com/sun/star/connection/XConnectionBroadcaster.hpp>
+#include <com/sun/star/connection/ConnectionSetupException.hpp>
+#include <com/sun/star/io/IOException.hpp>
+#include <cppuhelper/implbase.hxx>
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::connection;
+
+
+namespace io_acceptor {
+
+    typedef std::unordered_set< css::uno::Reference< css::io::XStreamListener> >
+            XStreamListener_hash_set;
+
+    namespace {
+
+    class SocketConnection : public ::cppu::WeakImplHelper<
+        css::connection::XConnection,
+        css::connection::XConnectionBroadcaster>
+
+    {
+    public:
+        explicit SocketConnection( const OUString & sConnectionDescription );
+
+        virtual sal_Int32 SAL_CALL read( css::uno::Sequence< sal_Int8 >& aReadBytes,
+                                         sal_Int32 nBytesToRead ) override;
+        virtual void SAL_CALL write( const css::uno::Sequence< sal_Int8 >& aData ) override;
+        virtual void SAL_CALL flush(  ) override;
+        virtual void SAL_CALL close(  ) override;
+        virtual OUString SAL_CALL getDescription(  ) override;
+
+        // XConnectionBroadcaster
+        virtual void SAL_CALL addStreamListener(const css::uno::Reference< css::io::XStreamListener>& aListener) override;
+        virtual void SAL_CALL removeStreamListener(const css::uno::Reference< css::io::XStreamListener>& aListener) override;
+
+    public:
+        void completeConnectionString();
+
+        ::osl::StreamSocket m_socket;
+        oslInterlockedCount m_nStatus;
+        OUString m_sDescription;
+
+        ::osl::Mutex _mutex;
+        bool     _started;
+        bool     _closed;
+        bool     _error;
+        XStreamListener_hash_set _listeners;
+    };
+
+    }
+
+    template<class T>
+    static void notifyListeners(SocketConnection * pCon, bool * notified, T t)
+    {
+        XStreamListener_hash_set listeners;
+
+        {
+            ::osl::MutexGuard guard(pCon->_mutex);
+            if(!*notified)
+            {
+                *notified = true;
+                listeners = pCon->_listeners;
+            }
+        }
+
+        for(auto& listener : listeners)
+            t(listener);
+    }
+
+    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( const OUString &sConnectionDescription) :
+        m_nStatus( 0 ),
+        m_sDescription( 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)) );
+    }
+
+    void SocketConnection::completeConnectionString()
+    {
+        OUStringBuffer buf( 256 );
+        buf.append( ",peerPort=" );
+        buf.append( m_socket.getPeerPort() );
+        buf.append( ",peerHost=" );
+        buf.append( m_socket.getPeerHost( ) );
+
+        buf.append( ",localPort=" );
+        buf.append( m_socket.getLocalPort() );
+        buf.append( ",localHost=" );
+        buf.append( m_socket.getLocalHost() );
+
+        m_sDescription += buf;
+    }
+
+    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)
+            {
+                OUString message = "acc_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("acc_socket.cxx:SocketConnection::read: error - connection already closed", 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 = "acc_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("acc_socket.cxx:SocketConnection::write: error - connection already closed", static_cast<XConnection *>(this));
+
+            Any any;
+            any <<= ioException;
+
+            notifyListeners(this, &_error, callError(any));
+
+            throw ioException;
+        }
+    }
+
+    void SocketConnection::flush( )
+    {
+
+    }
+
+    void SocketConnection::close()
+    {
+        // ensure 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)
+    {
+        MutexGuard guard(_mutex);
+
+        _listeners.insert(aListener);
+    }
+
+    void SAL_CALL SocketConnection::removeStreamListener(const Reference<XStreamListener> & aListener)
+    {
+        MutexGuard guard(_mutex);
+
+        _listeners.erase(aListener);
+    }
+
+    SocketAcceptor::SocketAcceptor( const OUString &sSocketName,
+                                    sal_uInt16 nPort,
+                                    bool bTcpNoDelay,
+                                    const OUString &sConnectionDescription) :
+        m_sSocketName( sSocketName ),
+        m_sConnectionDescription( sConnectionDescription ),
+        m_nPort( nPort ),
+        m_bTcpNoDelay( bTcpNoDelay ),
+        m_bClosed( false )
+    {
+    }
+
+
+    void SocketAcceptor::init()
+    {
+        if( ! m_addr.setPort( m_nPort ) )
+        {
+            throw ConnectionSetupException(
+                "acc_socket.cxx:SocketAcceptor::init - error - invalid tcp/ip port " +
+                OUString::number( m_nPort ));
+        }
+        if( ! m_addr.setHostname( m_sSocketName.pData ) )
+        {
+            throw ConnectionSetupException(
+                "acc_socket.cxx:SocketAcceptor::init - error - invalid host " + m_sSocketName );
+        }
+        m_socket.setOption( osl_Socket_OptionReuseAddr, 1);
+
+        if(! m_socket.bind(m_addr) )
+        {
+            throw ConnectionSetupException(
+                "acc_socket.cxx:SocketAcceptor::init - error - couldn't bind on " +
+                m_sSocketName + ":" + OUString::number(m_nPort));
+        }
+
+        if(! m_socket.listen() )
+        {
+            throw ConnectionSetupException(
+                "acc_socket.cxx:SocketAcceptor::init - error - can't listen on " +
+                m_sSocketName  + ":" + OUString::number(m_nPort) );
+        }
+    }
+
+    Reference< XConnection > SocketAcceptor::accept( )
+    {
+        std::unique_ptr<SocketConnection> pConn(new SocketConnection( m_sConnectionDescription ));
+
+        if( m_socket.acceptConnection( pConn->m_socket )!= osl_Socket_Ok )
+        {
+            // stopAccepting was called
+            return Reference < XConnection > ();
+        }
+        if( m_bClosed )
+        {
+            return Reference < XConnection > ();
+        }
+
+        pConn->completeConnectionString();
+        ::osl::SocketAddr remoteAddr;
+        pConn->m_socket.getPeerAddr(remoteAddr);
+        OUString remoteHostname = remoteAddr.getHostname();
+        // we enable tcpNoDelay for loopback connections because
+        // it can make a significant speed difference on linux boxes.
+        if( m_bTcpNoDelay || remoteHostname == "localhost" ||
+            remoteHostname.startsWith("127.0.0.") )
+        {
+            sal_Int32 nTcpNoDelay = sal_Int32(true);
+            pConn->m_socket.setOption( osl_Socket_OptionTcpNoDelay , &nTcpNoDelay,
+                                       sizeof( nTcpNoDelay ) , osl_Socket_LevelTcp );
+        }
+
+        return Reference < XConnection > ( static_cast<XConnection *>(pConn.release()) );
+    }
+
+    void SocketAcceptor::stopAccepting()
+    {
+        m_bClosed = true;
+        m_socket.close();
+    }
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */