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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 <retrievedinputstreamdata.hxx>
#include <retrieveinputstreamconsumer.hxx>
#include <vcl/svapp.hxx>
/** implementation of class <SwRetrievedInputStreamDataManager>
#i73788#
*/
SwRetrievedInputStreamDataManager::tDataKey SwRetrievedInputStreamDataManager::mnNextKeyValue = 1;
namespace
{
class theSwRetrievedInputStreamDataManager :
public rtl::Static< SwRetrievedInputStreamDataManager, theSwRetrievedInputStreamDataManager>
{
};
}
SwRetrievedInputStreamDataManager& SwRetrievedInputStreamDataManager::GetManager()
{
return theSwRetrievedInputStreamDataManager::get();
}
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: */
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