如何使用 Boost 序列化 std::chrono::duration？

Question

是否可以用 boost::serialization 序列化 std::chrono::duration 或特别是 std::chrono::milliseconds？

发生以下错误：

"struct std::chrono::duration >’ has no member named ‘serialize"

我的模板需要这个-class:

#include <iostream>
#include <chrono>
#include <boost/serialization/serialization.hpp>

template<typename T>
class Field {
public:

// Default Constructor
Field() {}

Field(std::string name, T value) :
        mName(name), mValue(value) {}

~Field() {}

const std::string& getName() const {
    return mName;
}

T getValue() const {
    return mValue;
}

private:

friend class boost::serialization::access;
template<typename Archive>
void serialize(Archive& archive, const unsigned int) {
    archive & boost::serialization::make_nvp("Name", mName);
    archive & boost::serialization::make_nvp("Value", mValue);
}

std::string mName;
T mValue;
};

BOOST_CLASS_IMPLEMENTATION( Field<int>, boost::serialization::object_serializable )
BOOST_CLASS_IMPLEMENTATION( Field<std::chrono::milliseconds>, boost::serialization::object_serializable )

我正在创建以下对象：

Field<std::chrono::milliseconds> mSimTime;

Answer 1

假设您有：

auto earlier = std::chrono::system_clock::now();
auto now = std::chrono::system_clock::now();
auto aLotOfMilliseconds= std::chrono::duration_cast<std::chrono::milliseconds>(
        now - earlier);

// 在这里连载 int64_t.

那么在反序列化之后，你有：

std::chrono::duration<int64_t, std::milli> duration(aLotOfMilliseconds);

如何使用 Boost 序列化 std::chrono::duration？

How to serialize std::chrono::duration with Boost?

serialization

boost

duration

boost-serialization

chrono