openPMD-api
HDF5Auxiliary.hpp
1 /* Copyright 2017-2021 Fabian Koller, Felix Schmitt, Axel Huebl
2  *
3  * This file is part of openPMD-api.
4  *
5  * openPMD-api is free software: you can redistribute it and/or modify
6  * it under the terms of of either the GNU General Public License or
7  * the GNU Lesser General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * openPMD-api is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License and the GNU Lesser General Public License
15  * for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * and the GNU Lesser General Public License along with openPMD-api.
19  * If not, see <http://www.gnu.org/licenses/>.
20  */
21 #pragma once
22 
23 #include "openPMD/config.hpp"
24 #include "openPMD/backend/Attribute.hpp"
25 #include "openPMD/backend/Writable.hpp"
26 
27 #include <hdf5.h>
28 
29 #include <map>
30 #include <string>
31 #include <unordered_map>
32 #include <utility>
33 
34 
35 namespace openPMD
36 {
38  {
39  std::unordered_map< std::string, hid_t > m_userTypes;
40 
41  GetH5DataType( std::unordered_map< std::string, hid_t > userTypes )
42  : m_userTypes{ std::move(userTypes) }
43  {
44  }
45 
46  hid_t
47  operator()(Attribute const &att);
48  };
49 
50  hid_t
51  getH5DataSpace(Attribute const& att);
52 
53  std::string
54  concrete_h5_file_position(Writable* w);
55 
69  std::vector< hsize_t >
70  getOptimalChunkDims( std::vector< hsize_t > const dims,
71  size_t const typeSize );
72 } // namespace openPMD
openPMD::Writable
Layer to mirror structure of logical data and persistent data in file.
Definition: Writable.hpp:64
openPMD::getOptimalChunkDims
std::vector< hsize_t > getOptimalChunkDims(std::vector< hsize_t > const dims, size_t const typeSize)
Computes the chunk dimensions for a dataset.
Definition: HDF5Auxiliary.cpp:313
openPMD::Attribute
Varidic datatype supporting at least all formats for attributes specified in the openPMD standard.
Definition: Attribute.hpp:50
openPMD::GetH5DataType
Definition: HDF5Auxiliary.hpp:37
openPMD
Public definitions of openPMD-api.
Definition: Date.cpp:29