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serialization: add support for serializing std::pair and std::list

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moneromooo-monero 2015-08-12 23:06:48 +01:00
parent 53e18cafdf
commit 98f19d40aa
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3 changed files with 219 additions and 4 deletions
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100
src/serialization/list.h Normal file
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@ -0,0 +1,100 @@
// Copyright (c) 2014-2015, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#pragma once
#include "serialization.h"
namespace serialization
{
namespace detail
{
template <typename Archive, class T>
bool serialize_list_element(Archive& ar, T& e)
{
return ::do_serialize(ar, e);
}
template <typename Archive>
bool serialize_list_element(Archive& ar, uint64_t& e)
{
ar.serialize_varint(e);
return true;
}
}
}
template <template <bool> class Archive, class T>
bool do_serialize(Archive<false> &ar, std::list<T> &l)
{
size_t cnt;
ar.begin_array(cnt);
if (!ar.stream().good())
return false;
l.clear();
// very basic sanity check
if (ar.remaining_bytes() < cnt) {
ar.stream().setstate(std::ios::failbit);
return false;
}
for (size_t i = 0; i < cnt; i++) {
if (i > 0)
ar.delimit_array();
l.push_back(T());
T &t = l.back();
if (!::serialization::detail::serialize_list_element(ar, t))
return false;
if (!ar.stream().good())
return false;
}
ar.end_array();
return true;
}
template <template <bool> class Archive, class T>
bool do_serialize(Archive<true> &ar, std::list<T> &l)
{
size_t cnt = l.size();
ar.begin_array(cnt);
for (typename std::list<T>::iterator i = l.begin(); i != l.end(); ++i) {
if (!ar.stream().good())
return false;
if (i != l.begin())
ar.delimit_array();
if(!::serialization::detail::serialize_list_element(ar, *i))
return false;
if (!ar.stream().good())
return false;
}
ar.end_array();
return true;
}

96
src/serialization/pair.h Normal file
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@ -0,0 +1,96 @@
// Copyright (c) 2014-2015, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#pragma once
#include <memory>
#include "serialization.h"
namespace serialization
{
namespace detail
{
template <typename Archive, class T>
bool serialize_pair_element(Archive& ar, T& e)
{
return ::do_serialize(ar, e);
}
template <typename Archive>
bool serialize_pair_element(Archive& ar, uint64_t& e)
{
ar.serialize_varint(e);
return true;
}
}
}
template <template <bool> class Archive, class F, class S>
inline bool do_serialize(Archive<false>& ar, std::pair<F,S>& p)
{
size_t cnt;
ar.begin_array(cnt);
if (!ar.stream().good())
return false;
if (cnt != 2)
return false;
if (!::serialization::detail::serialize_pair_element(ar, p.first))
return false;
if (!ar.stream().good())
return false;
ar.delimit_array();
if (!::serialization::detail::serialize_pair_element(ar, p.second))
return false;
if (!ar.stream().good())
return false;
ar.end_array();
return true;
}
template <template <bool> class Archive, class F, class S>
inline bool do_serialize(Archive<true>& ar, std::pair<F,S>& p)
{
ar.begin_array(2);
if (!ar.stream().good())
return false;
if(!::serialization::detail::serialize_pair_element(ar, p.first))
return false;
if (!ar.stream().good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_pair_element(ar, p.second))
return false;
if (!ar.stream().good())
return false;
ar.end_array();
return true;
}

27
src/serialization/serialization.h
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@ -41,6 +41,7 @@
#pragma once
#include <vector>
#include <list>
#include <string>
#include <boost/type_traits/is_integral.hpp>
#include <boost/type_traits/integral_constant.hpp>
@ -59,6 +60,16 @@ struct is_blob_type { typedef boost::false_type type; };
template <class T>
struct has_free_serializer { typedef boost::true_type type; };
/*! \struct is_pair_type
*
* \brief a descriptor for dispatching serialize
*/
template <class T>
struct is_pair_type { typedef boost::false_type type; };
template<typename F, typename S>
struct is_pair_type<std::pair<F,S>> { typedef boost::true_type type; };
/*! \struct serializer
*
* \brief ... wouldn't a class be better?
@ -75,20 +86,26 @@ 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());
return serialize(ar, v, typename boost::is_integral<T>::type(), typename is_blob_type<T>::type(), typename is_pair_type<T>::type());
}
static bool serialize(Archive &ar, T &v, boost::false_type, boost::true_type) {
template<typename A>
static bool serialize(Archive &ar, T &v, boost::false_type, boost::true_type, A a) {
ar.serialize_blob(&v, sizeof(v));
return true;
}
static bool serialize(Archive &ar, T &v, boost::true_type, boost::false_type) {
template<typename A>
static bool serialize(Archive &ar, T &v, boost::true_type, boost::false_type, A a) {
ar.serialize_int(v);
return true;
}
static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type) {
static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type, boost::false_type) {
//serialize_custom(ar, v, typename has_free_serializer<T>::type());
return v.do_serialize(ar);
}
static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type, boost::true_type) {
//serialize_custom(ar, v, typename has_free_serializer<T>::type());
return do_serialize(ar, v);
}
static void serialize_custom(Archive &ar, T &v, boost::true_type) {
}
};
@ -328,3 +345,5 @@ namespace serialization {
#include "string.h"
#include "vector.h"
#include "list.h"
#include "pair.h"