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/***********************************************************************
Moses - statistical machine translation system
Copyright (C) 2006-2011 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#include "AlignmentInfoCollection.h"
namespace Moses
{
AlignmentInfoCollection AlignmentInfoCollection::s_instance;
AlignmentInfoCollection::AlignmentInfoCollection()
{
std::set<std::pair<size_t,size_t> > pairs;
m_emptyAlignmentInfo = Add(pairs);
}
AlignmentInfoCollection::~AlignmentInfoCollection()
{}
const AlignmentInfo &AlignmentInfoCollection::GetEmptyAlignmentInfo() const
{
return *m_emptyAlignmentInfo;
}
AlignmentInfo const *
AlignmentInfoCollection::
Add(AlignmentInfo const& ainfo)
{
#ifdef WITH_THREADS
{
boost::shared_lock<boost::shared_mutex> read_lock(m_accessLock);
AlignmentInfoSet::const_iterator i = m_collection.find(ainfo);
if (i != m_collection.end())
return &*i;
}
boost::unique_lock<boost::shared_mutex> lock(m_accessLock);
#endif
std::pair<AlignmentInfoSet::iterator, bool> ret = m_collection.insert(ainfo);
return &(*ret.first);
}
}
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