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-rw-r--r--io/source/acceptor/acc_socket.cxx356
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diff --git a/io/source/acceptor/acc_socket.cxx b/io/source/acceptor/acc_socket.cxx
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+/* -*- 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: */
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