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/backend/Attribute.hpp"
24 #include "openPMD/backend/Writable.hpp"
25 #include "openPMD/config.hpp"
26 
27 #include <hdf5.h>
28 
29 #include <map>
30 #include <string>
31 #include <unordered_map>
32 #include <utility>
33 
34 namespace openPMD
35 {
37 {
38  std::unordered_map<std::string, hid_t> m_userTypes;
39 
40  GetH5DataType(std::unordered_map<std::string, hid_t> userTypes)
41  : m_userTypes{std::move(userTypes)}
42  {}
43 
44  hid_t operator()(Attribute const &att);
45 };
46 
47 hid_t getH5DataSpace(Attribute const &att);
48 
49 std::string concrete_h5_file_position(Writable *w);
50 
64 std::vector<hsize_t>
65 getOptimalChunkDims(std::vector<hsize_t> const &dims, size_t const typeSize);
66 } // namespace openPMD
Variant datatype supporting at least all formats for attributes specified in the openPMD standard.
Definition: Attribute.hpp:56
Layer to mirror structure of logical data and persistent data in file.
Definition: Writable.hpp:75
Public definitions of openPMD-api.
Definition: Date.cpp:29
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:316
Definition: HDF5Auxiliary.hpp:37