File: io.cc

package info (click to toggle)
pyosmium 4.3.0-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 5,600 kB
  • sloc: python: 4,493; cpp: 2,616; makefile: 21
file content (145 lines) | stat: -rw-r--r-- 6,533 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/* SPDX-License-Identifier: BSD-2-Clause
 *
 * This file is part of pyosmium. (https://osmcode.org/pyosmium/)
 *
 * Copyright (C) 2025 Sarah Hoffmann <lonvia@denofr.de> and others.
 * For a full list of authors see the git log.
 */
#include <pybind11/pybind11.h>
#include <pybind11/stl/filesystem.h>

#include <osmium/io/any_input.hpp>
#include <osmium/io/any_output.hpp>
#include <osmium/thread/pool.hpp>

#include <filesystem>

#include "io.h"

namespace py = pybind11;

namespace {

class FileBuffer : public osmium::io::File
{
    using osmium::io::File::File;
};

} // namespace


#ifdef Py_GIL_DISABLED
PYBIND11_MODULE(io, m, py::mod_gil_not_used())
#else
PYBIND11_MODULE(io, m)
#endif
{
    py::class_<osmium::io::File>(m, "File")
        .def(py::init<std::string>())
        .def(py::init<std::string, std::string>())
        .def(py::init<>([] (std::filesystem::path const &file) {
                 return new osmium::io::File(file.string());
             }))
        .def(py::init<>([] (std::filesystem::path const &file, const char *format) {
                 return new osmium::io::File(file.string(), format);
             }))
        .def_property("has_multiple_object_versions",
                      &osmium::io::File::has_multiple_object_versions,
                      &osmium::io::File::set_has_multiple_object_versions)
        .def("parse_format", &osmium::io::File::parse_format)
    ;


    py::class_<FileBuffer, osmium::io::File>(m, "FileBuffer")
        .def(py::init<>([] (py::buffer const &buf, std::string const &format) {
                 pybind11::buffer_info info = buf.request();
                 return new FileBuffer(reinterpret_cast<const char *>(info.ptr),
                                       static_cast<size_t>(info.size), format.c_str());
             }), py::keep_alive<1, 2>())
        .def_property("has_multiple_object_versions",
                      &osmium::io::File::has_multiple_object_versions,
                      &osmium::io::File::set_has_multiple_object_versions)
        .def("parse_format", &osmium::io::File::parse_format)
    ;


    py::class_<osmium::io::Header>(m, "Header")
        .def(py::init<>())
        .def_property("has_multiple_object_versions",
                      &osmium::io::Header::has_multiple_object_versions,
                      &osmium::io::Header::set_has_multiple_object_versions)
        .def("box", &osmium::io::Header::box)
        .def("get", (std::string (osmium::io::Header::*)(std::string const &, std::string const &))
                     &osmium::io::Header::get,
             py::arg("key"), py::arg("default")="")
        .def("set",
             (void (osmium::io::Header::*)(const std::string&, const char*))
                 &osmium::io::Header::set,
             py::arg("key"), py::arg("value"))
        .def("add_box", &osmium::io::Header::add_box,
             py::arg("box"),
             py::return_value_policy::reference_internal)
    ;

    py::class_<pyosmium::PyReader>(m, "Reader")
        .def(py::init<osmium::io::File, osmium::osm_entity_bits::type const *,
                      osmium::thread::Pool *>(),
             py::keep_alive<1, 2>(), py::keep_alive<1, 4>(),
             py::arg("file"), py::arg("types") = nullptr, py::arg("thread_pool") = nullptr
            )
        .def(py::init<>([] (std::string file,
                            osmium::osm_entity_bits::type const *types,
                            osmium::thread::Pool *pool) {
                 return new pyosmium::PyReader(osmium::io::File(std::move(file)),
                                               types, pool); }),
             py::keep_alive<1, 2>(), py::keep_alive<1, 4>(),
             py::arg("file"), py::arg("types") = nullptr, py::arg("thread_pool") = nullptr
            )
        .def(py::init<>([] (std::filesystem::path const &file,
                            osmium::osm_entity_bits::type const *types,
                            osmium::thread::Pool *pool) {
                 return new pyosmium::PyReader(osmium::io::File(file.string()),
                                               types, pool); }),
             py::keep_alive<1, 2>(), py::keep_alive<1, 4>(),
             py::arg("file"), py::arg("types") = nullptr, py::arg("thread_pool") = nullptr
            )
        .def("eof", [](pyosmium::PyReader const &self) { return self.get()->eof(); })
        .def("close", [](pyosmium::PyReader &self) { self.get()->close(); })
        .def("header", [](pyosmium::PyReader &self) { return self.get()->header(); })
        .def("__enter__", [](py::object const &self) { return self; })
        .def("__exit__", [](pyosmium::PyReader &self, py::args args) { self.get()->close(); })
    ;

    py::class_<pyosmium::PyWriter>(m, "Writer")
        .def(py::init<osmium::io::File, osmium::io::Header const *, bool, osmium::thread::Pool *>(),
             py::keep_alive<1, 5>(),
             py::arg("file"), py::arg("header") = nullptr,
             py::arg("overwrite") = false, py::arg("thread_pool") = nullptr
            )
        .def(py::init<>([] (std::filesystem::path const &file, osmium::io::Header const *header,
                            bool overwrite, osmium::thread::Pool *pool) {
                 return new pyosmium::PyWriter(osmium::io::File(file.string()),
                                               header, overwrite, pool); }),
             py::keep_alive<1, 5>(),
             py::arg("file"), py::arg("header") = nullptr,
             py::arg("overwrite") = false, py::arg("thread_pool") = nullptr
            )
        .def(py::init<>([] (std::string filename, osmium::io::Header const *header,
                            bool overwrite, osmium::thread::Pool *pool) {
                 return new pyosmium::PyWriter(osmium::io::File(std::move(filename)),
                                               header, overwrite, pool); }),
             py::keep_alive<1, 5>(),
             py::arg("file"), py::arg("header") = nullptr,
             py::arg("overwrite") = false, py::arg("thread_pool") = nullptr
            )
        .def("close", [](pyosmium::PyWriter &self) { self.get()->close(); })
    ;

    py::class_<osmium::thread::Pool>(m, "ThreadPool")
        .def(py::init<int, std::size_t>(),
             py::arg("num_threads")=0, py::arg("max_queue_size")=0U)
        .def_property_readonly("num_threads", &osmium::thread::Pool::num_threads)
        .def("queue_size", &osmium::thread::Pool::queue_size)
        .def("queue_empty", &osmium::thread::Pool::queue_empty)
     ;
}