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LSST Data Management Base Package
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Cache.h
Go to the documentation of this file.
1#ifndef LSST_CPPUTILS_PYTHON_CACHE_H
2#define LSST_CPPUTILS_PYTHON_CACHE_H
3/*
4 * LSST Data Management System
5 * See COPYRIGHT file at the top of the source tree.
6 *
7 * This product includes software developed by the
8 * LSST Project (http://www.lsst.org/).
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the LSST License Statement and
21 * the GNU General Public License along with this program. If not,
22 * see <http://www.lsstcorp.org/LegalNotices/>.
23 */
24
25#include <functional> // for std::function
26#include "pybind11/pybind11.h"
27#include "pybind11/stl.h"
28#include "pybind11/functional.h" // for binding std::function
29
30#include "lsst/cpputils/Cache.h"
31
32namespace py = pybind11;
33using namespace pybind11::literals;
34
35namespace lsst {
36namespace cpputils {
37namespace python {
38
39template <typename Key, typename Value, typename KeyHash=boost::hash<Key>,
40 typename KeyPred=std::equal_to<Key>>
41void declareCache(py::module & mod, std::string const& name) {
43 py::class_<Class> cls(mod, name.c_str());
44
45 cls.def(py::init<std::size_t>(), "maxElements"_a=0);
46 cls.def("__call__",
47 [](Class & self, Key const& key, std::function<Value(Key const& key)> func) {
48 py::gil_scoped_release release;
49 return self(key, func);
50 }, "key"_a, "func"_a);
51 cls.def("__getitem__", &Class::operator[]);
52 cls.def("get", &Class::get);
53 cls.def("add", &Class::add, "key"_a, "value"_a);
54 cls.def("size", &Class::size);
55 cls.def("__len__", &Class::size);
56 cls.def("keys", &Class::keys);
57 cls.def("contains", &Class::contains);
58 cls.def("__contains__", &Class::contains);
59 cls.def("capacity", &Class::capacity);
60 cls.def("reserve", &Class::reserve);
61 cls.def("flush", &Class::flush);
62}
63
64}}
65} // namespace lsst::cpputils::python
66
67#endif // ifndef LSST_CPPUTILS_PYTHON_CACHE_H
Cache of most recently used values.
Definition Cache.h:75
void declareCache(py::module &mod, std::string const &name)
Definition Cache.h:41