Alexandria 2.31.0
SDC-CH common library for the Euclid project
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NpyMmap.h
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1/*
2 * Copyright (C) 2012-2022 Euclid Science Ground Segment
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 3.0 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this library; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef ALEXANDRIA_NDARRAY_IO_NPYMMAP_H
20#define ALEXANDRIA_NDARRAY_IO_NPYMMAP_H
21
22#include "NdArray/NdArray.h"
23#include <boost/filesystem/path.hpp>
24#include <boost/iostreams/device/mapped_file.hpp>
25
26namespace Euclid {
27namespace NdArray {
28
50template <typename T>
51NdArray<T> mmapNpy(const boost::filesystem::path& path,
52 boost::iostreams::mapped_file_base::mapmode mode = boost::iostreams::mapped_file_base::readwrite,
53 size_t max_size = 0);
54
70template <typename T>
71NdArray<T> createMmapNpy(const boost::filesystem::path& path, const std::vector<size_t>& shape,
72 const std::vector<std::string>& attr_names, size_t max_size = 0);
73
87template <typename T>
88NdArray<T> createMmapNpy(const boost::filesystem::path& path, const std::vector<size_t>& shape, size_t max_size = 0) {
89 return createMmapNpy<T>(path, shape, {}, max_size);
90}
91
92} // end of namespace NdArray
93} // end of namespace Euclid
94
95#define NPYMMAP_IMPL
97#undef NPYMMAP_IMPL
98
99#endif // ALEXANDRIA_NDARRAY_IO_NPYMMAP_H
NdArray< T > mmapNpy(const boost::filesystem::path &path, boost::iostreams::mapped_file_base::mapmode mode=boost::iostreams::mapped_file_base::readwrite, size_t max_size=0)
NdArray< T > createMmapNpy(const boost::filesystem::path &path, const std::vector< size_t > &shape, const std::vector< std::string > &attr_names, size_t max_size=0)