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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/***********************************************************************
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Moses - statistical machine translation system
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Copyright (C) 2006-2011 University of Edinburgh
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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 as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#include "AlignmentInfoCollection.h"
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namespace Moses
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{
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AlignmentInfoCollection AlignmentInfoCollection::s_instance;
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AlignmentInfoCollection::AlignmentInfoCollection()
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{
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std::set<std::pair<size_t,size_t> > pairs;
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m_emptyAlignmentInfo = Add(pairs);
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}
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const AlignmentInfo &AlignmentInfoCollection::GetEmptyAlignmentInfo() const
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{
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return *m_emptyAlignmentInfo;
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}
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const AlignmentInfo *AlignmentInfoCollection::Add(
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const std::set<std::pair<size_t,size_t> > &pairs)
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{
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AlignmentInfo pairsAlignmentInfo(pairs);
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#ifdef WITH_THREADS
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{
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boost::shared_lock<boost::shared_mutex> read_lock(m_accessLock);
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AlignmentInfoSet::const_iterator i = m_collection.find(pairsAlignmentInfo);
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if (i != m_collection.end())
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return &*i;
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}
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boost::unique_lock<boost::shared_mutex> lock(m_accessLock);
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#endif
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std::pair<AlignmentInfoSet::iterator, bool> ret =
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m_collection.insert(pairsAlignmentInfo);
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return &(*ret.first);
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}
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}
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