536 lines
15 KiB
C++
536 lines
15 KiB
C++
/*************************************************************************
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*
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* $RCSfile: opump.cxx,v $
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*
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* $Revision: 1.9 $
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*
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* last change: $Author: jbu $ $Date: 2002-07-09 15:11:53 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include <stdio.h>
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#include <osl/diagnose.h>
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#include <com/sun/star/io/XActiveDataSource.hpp>
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#include <com/sun/star/io/XActiveDataSink.hpp>
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#include <com/sun/star/io/XActiveDataControl.hpp>
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#include <com/sun/star/io/XConnectable.hpp>
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#include <com/sun/star/lang/XSingleServiceFactory.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/registry/XRegistryKey.hpp>
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#include <uno/dispatcher.h>
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#include <uno/mapping.hxx>
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#include <cppuhelper/implbase5.hxx>
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#include <cppuhelper/factory.hxx>
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#include <cppuhelper/interfacecontainer.hxx>
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#include <osl/mutex.hxx>
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#include <osl/thread.h>
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using namespace osl;
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using namespace std;
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using namespace rtl;
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using namespace cppu;
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using namespace com::sun::star::uno;
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using namespace com::sun::star::lang;
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using namespace com::sun::star::registry;
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using namespace com::sun::star::io;
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#include "factreg.hxx"
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namespace io_stm {
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class Pump : public WeakImplHelper5<
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XActiveDataSource, XActiveDataSink, XActiveDataControl, XConnectable, XServiceInfo >
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{
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Mutex m_aMutex;
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oslThread m_aThread;
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Reference< XConnectable > m_xPred;
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Reference< XConnectable > m_xSucc;
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Reference< XInputStream > m_xInput;
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Reference< XOutputStream > m_xOutput;
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OInterfaceContainerHelper m_cnt;
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sal_Bool m_closeFired;
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void run();
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static void static_run( void* pObject );
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void close();
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void fireClose();
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void fireStarted();
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void fireTerminated();
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void fireError( const Any &a );
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public:
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Pump();
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virtual ~Pump();
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// XActiveDataSource
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virtual void SAL_CALL setOutputStream( const Reference< ::com::sun::star::io::XOutputStream >& xOutput ) throw();
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virtual Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream() throw();
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// XActiveDataSink
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virtual void SAL_CALL setInputStream( const Reference< ::com::sun::star::io::XInputStream >& xStream ) throw();
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virtual Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream() throw();
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// XActiveDataControl
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virtual void SAL_CALL addListener( const Reference< ::com::sun::star::io::XStreamListener >& xListener ) throw();
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virtual void SAL_CALL removeListener( const Reference< ::com::sun::star::io::XStreamListener >& xListener ) throw();
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virtual void SAL_CALL start() throw( RuntimeException );
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virtual void SAL_CALL terminate() throw();
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// XConnectable
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virtual void SAL_CALL setPredecessor( const Reference< ::com::sun::star::io::XConnectable >& xPred ) throw();
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virtual Reference< ::com::sun::star::io::XConnectable > SAL_CALL getPredecessor() throw();
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virtual void SAL_CALL setSuccessor( const Reference< ::com::sun::star::io::XConnectable >& xSucc ) throw();
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virtual Reference< ::com::sun::star::io::XConnectable > SAL_CALL getSuccessor() throw();
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public: // XServiceInfo
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virtual OUString SAL_CALL getImplementationName() throw( );
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virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw( );
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virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw( );
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};
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Pump::Pump() : m_aThread( 0 ),
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m_cnt( m_aMutex ),
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m_closeFired( sal_False )
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{
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g_moduleCount.modCnt.acquire( &g_moduleCount.modCnt );
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}
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Pump::~Pump()
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{
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// exit gracefully
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if( m_aThread )
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{
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osl_joinWithThread( m_aThread );
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osl_destroyThread( m_aThread );
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}
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g_moduleCount.modCnt.release( &g_moduleCount.modCnt );
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}
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void Pump::fireError( const Any & exception )
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{
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OInterfaceIteratorHelper iter( m_cnt );
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while( iter.hasMoreElements() )
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{
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try
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{
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static_cast< XStreamListener * > ( iter.next() )->error( exception );
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}
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catch ( RuntimeException &e )
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{
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OString sMessage = OUStringToOString( e.Message , RTL_TEXTENCODING_ASCII_US );
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OSL_ENSURE( !"com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners", sMessage.getStr() );
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}
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}
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}
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void Pump::fireClose()
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{
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sal_Bool bFire = sal_False;
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{
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MutexGuard guard( m_aMutex );
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if( ! m_closeFired )
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{
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m_closeFired = sal_True;
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bFire = sal_True;
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}
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}
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if( bFire )
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{
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OInterfaceIteratorHelper iter( m_cnt );
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while( iter.hasMoreElements() )
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{
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try
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{
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static_cast< XStreamListener * > ( iter.next() )->closed( );
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}
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catch ( RuntimeException &e )
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{
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OString sMessage = OUStringToOString( e.Message , RTL_TEXTENCODING_ASCII_US );
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OSL_ENSURE( !"com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners", sMessage.getStr() );
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}
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}
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}
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}
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void Pump::fireStarted()
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{
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OInterfaceIteratorHelper iter( m_cnt );
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while( iter.hasMoreElements() )
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{
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try
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{
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static_cast< XStreamListener * > ( iter.next() )->started( );
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}
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catch ( RuntimeException &e )
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{
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OString sMessage = OUStringToOString( e.Message , RTL_TEXTENCODING_ASCII_US );
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OSL_ENSURE( !"com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners", sMessage.getStr() );
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}
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}
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}
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void Pump::fireTerminated()
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{
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OInterfaceIteratorHelper iter( m_cnt );
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while( iter.hasMoreElements() )
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{
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try
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{
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static_cast< XStreamListener * > ( iter.next() )->terminated();
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}
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catch ( RuntimeException &e )
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{
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OString sMessage = OUStringToOString( e.Message , RTL_TEXTENCODING_ASCII_US );
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OSL_ENSURE( !"com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners", sMessage.getStr() );
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}
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}
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}
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void Pump::close()
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{
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// close streams and release references
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Reference< XInputStream > rInput;
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Reference< XOutputStream > rOutput;
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{
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MutexGuard guard( m_aMutex );
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rInput = m_xInput;
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m_xInput.clear();
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rOutput = m_xOutput;
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m_xOutput.clear();
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m_xSucc.clear();
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m_xPred.clear();
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}
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if( rInput.is() )
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{
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try
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{
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rInput->closeInput();
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}
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catch( Exception &e )
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{
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// go down calm
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}
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}
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if( rOutput.is() )
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{
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try
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{
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rOutput->closeOutput();
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}
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catch( Exception &e )
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{
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// go down calm
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}
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}
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}
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void Pump::static_run( void* pObject )
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{
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((Pump*)pObject)->run();
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((Pump*)pObject)->release();
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}
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void Pump::run()
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{
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try
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{
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fireStarted();
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try
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{
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Reference< XInputStream > rInput;
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Reference< XOutputStream > rOutput;
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{
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Guard< Mutex > aGuard( m_aMutex );
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rInput = m_xInput;
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rOutput = m_xOutput;
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}
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if( ! rInput.is() )
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{
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NotConnectedException exception(
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OUString::createFromAscii( "no input stream set" ) , Reference<XInterface>((OWeakObject*)this) );
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throw exception;
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}
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Sequence< sal_Int8 > aData;
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long nBytes;
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while( nBytes = rInput->readSomeBytes( aData, 65536 ) )
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{
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if( ! rOutput.is() )
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{
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NotConnectedException exception(
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OUString::createFromAscii( "no output stream set" ) , Reference<XInterface>( (OWeakObject*)this) );
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throw exception;
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}
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rOutput->writeBytes( aData );
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osl_yieldThread();
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}
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}
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catch ( IOException & e )
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{
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fireError( makeAny( e ) );
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}
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catch ( RuntimeException & e )
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{
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fireError( makeAny( e ) );
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}
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catch ( Exception & e )
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{
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fireError( makeAny( e ) );
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}
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close();
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fireClose();
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}
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catch ( com::sun::star::uno::Exception &e )
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{
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// we are the last on the stack.
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// this is to avoid crashing the program, when e.g. a bridge crashes
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OString sMessage = OUStringToOString( e.Message , RTL_TEXTENCODING_ASCII_US );
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OSL_ENSURE( !"com.sun.star.comp.stoc.Pump: unexpected exception", sMessage.getStr() );
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}
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}
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// ------------------------------------------------------------
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/*
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* XConnectable
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*/
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void Pump::setPredecessor( const Reference< XConnectable >& xPred ) throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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m_xPred = xPred;
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}
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// ------------------------------------------------------------
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Reference< XConnectable > Pump::getPredecessor() throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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return m_xPred;
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}
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// ------------------------------------------------------------
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void Pump::setSuccessor( const Reference< XConnectable >& xSucc ) throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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m_xSucc = xSucc;
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}
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// ------------------------------------------------------------
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Reference< XConnectable > Pump::getSuccessor() throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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return m_xSucc;
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}
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// -----------------------------------------------------------------
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/*
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* XActiveDataControl
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*/
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void Pump::addListener( const Reference< XStreamListener >& xListener ) throw()
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{
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m_cnt.addInterface( xListener );
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}
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// ------------------------------------------------------------
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void Pump::removeListener( const Reference< XStreamListener >& xListener ) throw()
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{
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m_cnt.removeInterface( xListener );
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}
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// ------------------------------------------------------------
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void Pump::start() throw( RuntimeException )
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{
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Guard< Mutex > aGuard( m_aMutex );
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m_aThread = osl_createSuspendedThread((oslWorkerFunction)Pump::static_run,this);
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if( m_aThread )
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{
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// will be released by OPump::static_run
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acquire();
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osl_resumeThread( m_aThread );
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}
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else
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{
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throw RuntimeException(
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OUString( RTL_CONSTASCII_USTRINGPARAM( "Pump::start Couldn't create worker thread" )),
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*this);
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}
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}
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// ------------------------------------------------------------
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void Pump::terminate() throw()
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{
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close();
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// wait for the worker to die
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if( m_aThread )
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osl_joinWithThread( m_aThread );
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fireTerminated();
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fireClose();
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}
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// ------------------------------------------------------------
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/*
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* XActiveDataSink
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*/
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void Pump::setInputStream( const Reference< XInputStream >& xStream ) throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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m_xInput = xStream;
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Reference< XConnectable > xConnect( xStream, UNO_QUERY );
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if( xConnect.is() )
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xConnect->setSuccessor( this );
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// data transfer starts in XActiveDataControl::start
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}
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// ------------------------------------------------------------
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Reference< XInputStream > Pump::getInputStream() throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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return m_xInput;
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}
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// ------------------------------------------------------------
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/*
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* XActiveDataSource
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*/
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void Pump::setOutputStream( const Reference< XOutputStream >& xOut ) throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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m_xOutput = xOut;
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Reference< XConnectable > xConnect( xOut, UNO_QUERY );
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if( xConnect.is() )
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xConnect->setPredecessor( this );
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// data transfer starts in XActiveDataControl::start
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}
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// ------------------------------------------------------------
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Reference< XOutputStream > Pump::getOutputStream() throw()
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{
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Guard< Mutex > aGuard( m_aMutex );
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return m_xOutput;
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}
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// XServiceInfo
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OUString Pump::getImplementationName() throw( )
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{
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return OPumpImpl_getImplementationName();
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}
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// XServiceInfo
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sal_Bool Pump::supportsService(const OUString& ServiceName) throw( )
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{
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Sequence< OUString > aSNL = getSupportedServiceNames();
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const OUString * pArray = aSNL.getConstArray();
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for( sal_Int32 i = 0; i < aSNL.getLength(); i++ )
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if( pArray[i] == ServiceName )
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return sal_True;
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return sal_False;
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}
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// XServiceInfo
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Sequence< OUString > Pump::getSupportedServiceNames(void) throw( )
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{
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return OPumpImpl_getSupportedServiceNames();
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}
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Reference< XInterface > SAL_CALL OPumpImpl_CreateInstance( const Reference< XComponentContext > & rSMgr ) throw (Exception)
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{
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return Reference< XInterface >( *new Pump );
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}
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OUString OPumpImpl_getImplementationName()
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{
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return OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.io.Pump") );
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}
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Sequence<OUString> OPumpImpl_getSupportedServiceNames(void)
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{
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OUString s( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.io.Pump" ) );
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Sequence< OUString > seq( &s , 1 );
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return seq;
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}
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}
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