forked from lthn/blockchain
220 lines
6.5 KiB
C++
220 lines
6.5 KiB
C++
// Copyright (c) 2014-2018 The The Louisdor Project
|
|
// Copyright (c) 2012-2013 The Cryptonote developers
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
/* serialization.h
|
|
*
|
|
* Simple templated serialization API */
|
|
|
|
#pragma once
|
|
#include <vector>
|
|
#include <string>
|
|
#include <boost/type_traits/is_integral.hpp>
|
|
|
|
#include "misc_log_ex.h"
|
|
#include "binary_archive.h"
|
|
|
|
template <class T>
|
|
struct is_blob_type { typedef boost::false_type type; };
|
|
template <class T>
|
|
struct has_free_serializer { typedef boost::true_type type; };
|
|
|
|
template <class Archive, class T>
|
|
struct serializer
|
|
{
|
|
static bool serialize(Archive &ar, T &v) {
|
|
return serialize(ar, v, typename boost::is_integral<T>::type(), typename is_blob_type<T>::type());
|
|
}
|
|
static bool serialize(Archive &ar, T &v, boost::false_type, boost::true_type) {
|
|
ar.serialize_blob(&v, sizeof(v));
|
|
return true;
|
|
}
|
|
static bool serialize(Archive &ar, T &v, boost::true_type, boost::false_type) {
|
|
ar.serialize_int(v);
|
|
return true;
|
|
}
|
|
static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type) {
|
|
//serialize_custom(ar, v, typename has_free_serializer<T>::type());
|
|
return v.do_serialize(ar);
|
|
}
|
|
static void serialize_custom(Archive &ar, T &v, boost::true_type) {
|
|
}
|
|
};
|
|
|
|
template <class Archive, class T>
|
|
inline bool do_serialize(Archive &ar, T &v)
|
|
{
|
|
return ::serializer<Archive, T>::serialize(ar, v);
|
|
}
|
|
|
|
#if ( !defined(__GNUC__) && !(defined(_MSC_VER) && (_MSC_VER >= 1900)))
|
|
#ifndef constexpr
|
|
#define constexpr
|
|
#endif
|
|
#endif
|
|
|
|
#define BLOB_SERIALIZER(T) \
|
|
template<> struct is_blob_type<T> { typedef boost::true_type type; }
|
|
#define FREE_SERIALIZER(T) \
|
|
template<> struct has_free_serializer<T> { typedef boost::true_type type; }
|
|
#define VARIANT_TAG(A, T, Tg) \
|
|
template <bool W> struct variant_serialization_traits<A<W>, T> { static inline typename A<W>::variant_tag_type get_tag() { return Tg; } }
|
|
#define BEGIN_SERIALIZE() \
|
|
template <bool W, template <bool> class Archive> bool do_serialize(Archive<W> &ar) {
|
|
#define BEGIN_SERIALIZE_OBJECT() \
|
|
template <bool W, template <bool> class Archive> bool do_serialize(Archive<W> &ar) { ar.begin_object(); bool r = do_serialize_object(ar); ar.end_object(); return r; } \
|
|
template <bool W, template <bool> class Archive> bool do_serialize_object(Archive<W> &ar){
|
|
#define PREPARE_CUSTOM_VECTOR_SERIALIZATION(size, vec) ::serialization::detail::prepare_custom_vector_serialization(size, vec, typename Archive<W>::is_saving())
|
|
|
|
#define END_SERIALIZE() return true;}
|
|
|
|
|
|
#define VALUE(f) \
|
|
do { \
|
|
ar.tag(#f); \
|
|
bool r = ::do_serialize(ar, f); \
|
|
if (!r || !ar.stream().good()) return false; \
|
|
} while (0);
|
|
#define FIELD_N(t, f) \
|
|
do { \
|
|
ar.tag(t); \
|
|
bool r = ::do_serialize(ar, f); \
|
|
if (!r || !ar.stream().good()) return false; \
|
|
} while (0);
|
|
#define FIELDS(f) \
|
|
bool r = ::do_serialize(ar, f); \
|
|
if (!r || !ar.stream().good()) return false;
|
|
#define FIELD(f) \
|
|
do { \
|
|
ar.tag(#f); \
|
|
bool r = ::do_serialize(ar, f); \
|
|
if (!r || !ar.stream().good()) return false; \
|
|
} while (0);
|
|
#define VARINT_FIELD(f) \
|
|
do { \
|
|
ar.tag(#f); \
|
|
ar.serialize_varint(f); \
|
|
if (!ar.stream().good()) return false; \
|
|
} while (0);
|
|
|
|
#define DEFINE_SERIALIZATION_VERSION(v) inline static uint32_t get_serialization_version() { return v; }
|
|
|
|
|
|
#define VERSION_ENTRY(f) \
|
|
do { \
|
|
ar.tag(#f); \
|
|
if (ar.is_saving_arch()) \
|
|
f = this->get_serialization_version(); \
|
|
bool r = ::do_serialize(ar, f); \
|
|
if (!r || !ar.stream().good()) return false; \
|
|
} while (0);
|
|
|
|
template<typename first_type, typename second_type>
|
|
class serializable_pair : public std::pair<first_type, second_type>
|
|
{
|
|
typedef std::pair<first_type, second_type> base;
|
|
public:
|
|
serializable_pair()
|
|
{}
|
|
serializable_pair(const first_type& a, const second_type& b) :std::pair<first_type, second_type>(a, b)
|
|
{}
|
|
serializable_pair(const serializable_pair& sp) :std::pair<first_type, second_type>(sp.first, sp.second)
|
|
{}
|
|
|
|
BEGIN_SERIALIZE_OBJECT()
|
|
FIELD(base::first)
|
|
FIELD(base::second)
|
|
END_SERIALIZE()
|
|
};
|
|
|
|
template<typename first_type, typename second_type>
|
|
serializable_pair<first_type, second_type> make_serializable_pair(const first_type& first_value, const second_type& second_value)
|
|
{
|
|
return serializable_pair<first_type, second_type>(first_value, second_value);
|
|
}
|
|
|
|
|
|
namespace serialization {
|
|
namespace detail
|
|
{
|
|
template <typename T>
|
|
void prepare_custom_vector_serialization(size_t size, std::vector<T>& vec, const boost::mpl::bool_<true>& /*is_saving*/)
|
|
{
|
|
}
|
|
|
|
template <typename T>
|
|
void prepare_custom_vector_serialization(size_t size, std::vector<T>& vec, const boost::mpl::bool_<false>& /*is_saving*/)
|
|
{
|
|
vec.resize(size);
|
|
}
|
|
|
|
template<class Stream>
|
|
bool do_check_stream_state(Stream& s, boost::mpl::bool_<true>)
|
|
{
|
|
return s.good();
|
|
}
|
|
|
|
template<class Stream>
|
|
bool do_check_stream_state(Stream& s, boost::mpl::bool_<false>)
|
|
{
|
|
bool result = false;
|
|
if (s.good())
|
|
{
|
|
std::ios_base::iostate state = s.rdstate();
|
|
result = EOF == s.peek();
|
|
s.clear(state);
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
template<class Archive>
|
|
bool check_stream_state(Archive& ar)
|
|
{
|
|
return detail::do_check_stream_state(ar.stream(), typename Archive::is_saving());
|
|
}
|
|
|
|
template <class Archive, class T>
|
|
inline bool serialize(Archive &ar, T &v)
|
|
{
|
|
bool r = do_serialize(ar, v);
|
|
return r && check_stream_state(ar);
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------
|
|
template<class t_object>
|
|
bool t_serializable_object_to_blob(const t_object& to, std::string& b_blob)
|
|
{
|
|
std::stringstream ss;
|
|
binary_archive<true> ba(ss);
|
|
bool r = ::serialization::serialize(ba, const_cast<t_object&>(to));
|
|
b_blob = ss.str();
|
|
return r;
|
|
}
|
|
//---------------------------------------------------------------
|
|
template<class t_object>
|
|
bool t_unserializable_object_from_blob(t_object& to, const std::string& blob)
|
|
{
|
|
std::stringstream ss;
|
|
ss << blob;
|
|
binary_archive<false> ba(ss);
|
|
bool r = ::serialization::serialize(ba, to);
|
|
CHECK_AND_ASSERT_MES(r, false, "Failed to parse block from blob");
|
|
return true;
|
|
}
|
|
//---------------------------------------------------------------
|
|
template<class t_object>
|
|
std::string t_serializable_object_to_blob(const t_object& to)
|
|
{
|
|
std::string b;
|
|
t_serializable_object_to_blob(to, b);
|
|
return b;
|
|
}
|
|
|
|
#include "serialize_basic_types.h"
|
|
#include "string.h"
|
|
#include "multiprecision.h"
|
|
#include "stl_containers.h"
|
|
|