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147 lines
3.8 KiB
C++
147 lines
3.8 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./Grid/serialisation/VectorUtils.h
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Copyright (C) 2015
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Author: Antonin Portelli <antonin.portelli@me.com>
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Author: Peter Boyle <paboyle@ed.ac.uk>
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Author: Guido Cossu <guido.cossu@ed.ac.uk>
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Author: Michael Marshall <michael.marshall@ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.h>
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using namespace Grid;
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#ifndef H5_NO_NAMESPACE
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using namespace H5NS;
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#endif
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// Writer implementation ///////////////////////////////////////////////////////
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Hdf5Writer::Hdf5Writer(const std::string &fileName)
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: fileName_(fileName)
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, file_(fileName.c_str(), H5F_ACC_TRUNC)
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{
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group_ = file_.openGroup("/");
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writeSingleAttribute(dataSetThres_, HDF5_GRID_GUARD "dataset_threshold",
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Hdf5Type<unsigned int>::type());
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}
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void Hdf5Writer::push(const std::string &s)
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{
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group_ = group_.createGroup(s);
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path_.push_back(s);
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}
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void Hdf5Writer::pop(void)
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{
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path_.pop_back();
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if (path_.empty())
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{
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group_ = file_.openGroup("/");
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}
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else
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{
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auto binOp = [](const std::string &a, const std::string &b)->std::string
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{
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return a + "/" + b;
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};
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group_ = group_.openGroup(std::accumulate(path_.begin(), path_.end(),
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std::string(""), binOp));
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}
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}
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template <>
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void Hdf5Writer::writeDefault(const std::string &s, const std::string &x)
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{
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StrType strType(PredType::C_S1, x.size());
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writeSingleAttribute(*(x.data()), s, strType);
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}
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void Hdf5Writer::writeDefault(const std::string &s, const char *x)
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{
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std::string sx(x);
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writeDefault(s, sx);
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}
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Group & Hdf5Writer::getGroup(void)
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{
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return group_;
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}
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// Reader implementation ///////////////////////////////////////////////////////
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Hdf5Reader::Hdf5Reader(const std::string &fileName, const bool readOnly)
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: fileName_(fileName)
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, file_(fileName.c_str(), readOnly ? H5F_ACC_RDONLY : H5F_ACC_RDWR)
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{
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group_ = file_.openGroup("/");
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readSingleAttribute(dataSetThres_, HDF5_GRID_GUARD "dataset_threshold",
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Hdf5Type<unsigned int>::type());
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}
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bool Hdf5Reader::push(const std::string &s)
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{
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group_ = group_.openGroup(s);
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path_.push_back(s);
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return true;
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}
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void Hdf5Reader::pop(void)
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{
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path_.pop_back();
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if (path_.empty())
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{
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group_ = file_.openGroup("/");
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}
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else
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{
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auto binOp = [](const std::string &a, const std::string &b)->std::string
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{
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return a + "/" + b;
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};
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group_ = group_.openGroup(std::accumulate(path_.begin(), path_.end(),
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std::string(""), binOp));
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}
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}
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template <>
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void Hdf5Reader::readDefault(const std::string &s, std::string &x)
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{
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Attribute attribute;
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attribute = group_.openAttribute(s);
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StrType strType = attribute.getStrType();
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x.resize(strType.getSize());
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attribute.read(strType, &(x[0]));
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}
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Group & Hdf5Reader::getGroup(void)
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{
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return group_;
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}
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