mirror of
https://gitee.com/fasiondog/hikyuu.git
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91 lines
4.8 KiB
C++
91 lines
4.8 KiB
C++
/*
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* Copyright (c) 2019 hikyuu.org
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*
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* Created on: 2020-5-24
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* Author: fasiondog
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*/
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#pragma once
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#ifndef PICKLE_SUPPORT_H_
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#define PICKLE_SUPPORT_H_
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#include <hikyuu/config.h>
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#if HKU_SUPPORT_BINARY_ARCHIVE || HKU_SUPPORT_XML_ARCHIVE || HKU_SUPPORT_TEXT_ARCHIVE
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#define HKU_PYTHON_SUPPORT_PICKLE 1
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#endif
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#if HKU_PYTHON_SUPPORT_PICKLE
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#if HKU_SUPPORT_BINARY_ARCHIVE
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#include <boost/archive/binary_oarchive.hpp>
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#include <boost/archive/binary_iarchive.hpp>
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#define OUTPUT_ARCHIVE boost::archive::binary_oarchive
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#define INPUT_ARCHIVE boost::archive::binary_iarchive
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#else
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#if HKU_SUPPORT_XML_ARCHIVE
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#include <boost/archive/xml_oarchive.hpp>
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#include <boost/archive/xml_iarchive.hpp>
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#define OUTPUT_ARCHIVE boost::archive::xml_oarchive
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#define INPUT_ARCHIVE boost::archive::xml_iarchive
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#else
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#include <boost/archive/text_oarchive.hpp>
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#include <boost/archive/text_iarchive.hpp>
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#define OUTPUT_ARCHIVE boost::archive::text_oarchive
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#define INPUT_ARCHIVE boost::archive::text_iarchive
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#endif /* HKU_SUPPORT_XML_ARCHIVE */
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#endif /* HKU_SUPPORT_BINARY_ARCHIVE */
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#endif /* HKU_PYTHON_SUPPORT_PICKLE */
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#if HKU_PYTHON_SUPPORT_PICKLE
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#include <string>
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#include <sstream>
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#include <pybind11/pybind11.h>
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namespace py = pybind11;
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#define DEF_PICKLE(classname) \
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.def(py::pickle( \
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[](const classname& p) { \
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std::ostringstream os; \
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OUTPUT_ARCHIVE oa(os); \
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oa << p; \
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std::string tmp(os.str()); \
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return py::make_tuple(py::handle(PyBytes_FromStringAndSize(tmp.data(), tmp.size()))); \
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}, \
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[](py::tuple t) { \
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classname result; \
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if (len(t) != 1) { \
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PyErr_SetObject( \
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PyExc_ValueError, \
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py::str("expected 1-item tuple in call to __setstate__; got {}").format(t).ptr()); \
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throw py::error_already_set(); \
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} \
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py::object obj = t[0]; \
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if (py::isinstance<py::str>(obj)) { \
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std::string st = obj.cast<py::str>(); \
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std::istringstream is(st); \
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INPUT_ARCHIVE ia(is); \
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ia >> result; \
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} else if (PyBytes_Check(py::object(t[0]).ptr())) { \
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py::object obj = t[0]; \
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char* data = PyBytes_AsString(obj.ptr()); \
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auto num = PyBytes_Size(obj.ptr()); \
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std::istringstream sin(std::string(data, num)); \
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INPUT_ARCHIVE ia(sin); \
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ia >> result; \
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return result; \
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} else { \
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throw std::runtime_error("Unable to unpickle, error in input file."); \
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} \
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return result; \
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}))
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#else
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#define DEF_PICKLE(classname)
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#endif /* HKU_PYTHON_SUPPORT_PICKLE */
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#endif /* PICKLE_SUPPORT_H_ */
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