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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <retrievedinputstreamdata.hxx>
#include <retrieveinputstreamconsumer.hxx>
#include <vcl/svapp.hxx>
/** implementation of class <SwRetrievedInputStreamDataManager>
#i73788#
*/
SwRetrievedInputStreamDataManager* SwRetrievedInputStreamDataManager::mpManager = 0;
SwRetrievedInputStreamDataManager::tDataKey SwRetrievedInputStreamDataManager::mnNextKeyValue = 1;
osl::Mutex SwRetrievedInputStreamDataManager::maGetManagerMutex;
SwRetrievedInputStreamDataManager& SwRetrievedInputStreamDataManager::GetManager()
{
osl::MutexGuard aGuard(maGetManagerMutex);
if ( mpManager == 0 )
{
mpManager = new SwRetrievedInputStreamDataManager();
}
return *mpManager;
}
SwRetrievedInputStreamDataManager::tDataKey SwRetrievedInputStreamDataManager::ReserveData(
boost::weak_ptr< SwAsyncRetrieveInputStreamThreadConsumer > pThreadConsumer )
{
osl::MutexGuard aGuard(maMutex);
// create empty data container for given thread Consumer
tDataKey nDataKey( mnNextKeyValue );
tData aNewEntry( pThreadConsumer );
maInputStreamData[ nDataKey ] = aNewEntry;
// prepare next data key value
if ( mnNextKeyValue < SAL_MAX_UINT64 )
{
++mnNextKeyValue;
}
else
{
mnNextKeyValue = 1;
}
return nDataKey;
}
void SwRetrievedInputStreamDataManager::PushData(
const tDataKey nDataKey,
com::sun::star::uno::Reference<com::sun::star::io::XInputStream> xInputStream,
const sal_Bool bIsStreamReadOnly )
{
osl::MutexGuard aGuard(maMutex);
std::map< tDataKey, tData >::iterator aIter = maInputStreamData.find( nDataKey );
if ( aIter != maInputStreamData.end() )
{
// Fill data container.
(*aIter).second.mxInputStream = xInputStream;
(*aIter).second.mbIsStreamReadOnly = bIsStreamReadOnly;
// post user event to process the retrieved input stream data
if ( GetpApp() )
{
tDataKey* pDataKey = new tDataKey;
*pDataKey = nDataKey;
GetpApp()->PostUserEvent( LINK( this, SwRetrievedInputStreamDataManager, LinkedInputStreamReady ), pDataKey );
}
else
{
// no application available -> discard data
maInputStreamData.erase( aIter );
}
}
}
bool SwRetrievedInputStreamDataManager::PopData( const tDataKey nDataKey,
tData& rData )
{
osl::MutexGuard aGuard(maMutex);
bool bDataProvided( false );
std::map< tDataKey, tData >::iterator aIter = maInputStreamData.find( nDataKey );
if ( aIter != maInputStreamData.end() )
{
rData.mpThreadConsumer = (*aIter).second.mpThreadConsumer;
rData.mxInputStream = (*aIter).second.mxInputStream;
rData.mbIsStreamReadOnly = (*aIter).second.mbIsStreamReadOnly;
maInputStreamData.erase( aIter );
bDataProvided = true;
}
return bDataProvided;
}
/** callback function, which is triggered by input stream data manager on
filling of the data container to provide retrieved input stream to the
thread Consumer using <Application::PostUserEvent(..)>
#i73788#
Note: This method has to be run in the main thread.
@author OD
*/
IMPL_LINK( SwRetrievedInputStreamDataManager,
LinkedInputStreamReady,
SwRetrievedInputStreamDataManager::tDataKey*,
pDataKey )
{
if ( !pDataKey )
{
return 0;
}
osl::MutexGuard aGuard(maMutex);
SwRetrievedInputStreamDataManager& rDataManager =
SwRetrievedInputStreamDataManager::GetManager();
SwRetrievedInputStreamDataManager::tData aInputStreamData;
if ( rDataManager.PopData( *pDataKey, aInputStreamData ) )
{
boost::shared_ptr< SwAsyncRetrieveInputStreamThreadConsumer > pThreadConsumer =
aInputStreamData.mpThreadConsumer.lock();
if ( pThreadConsumer )
{
pThreadConsumer->ApplyInputStream( aInputStreamData.mxInputStream,
aInputStreamData.mbIsStreamReadOnly );
}
}
delete pDataKey;
return 0;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
