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monero/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
Jeffrey d1cb9c393e Remove serialization/enableable 
Currently working on an EPEE [ser/de]ialization library for Rust and at first glance, EPEE seemed to have support for optional wrappers. However, after looking into it, this feature appears to be half-baked and unused. Furthermore, adding support for optional values would be better suited to implement at the storage level, in my opinion. That would make parsing DOMs easier and less error-prone. If anyone is currently using this code, please comment. Thanks!

At the time of writing, this PR has no merge conflicts with #8211
2022-04-09 22:53:46 -05:00

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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of the Andrey N. Sabelnikov 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 OWNER 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.
//
#pragma once
#include <set>
#include <list>
#include <vector>
#include <deque>
#include <boost/mpl/vector.hpp>
#include <boost/mpl/contains_fwd.hpp>
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "serialization"
namespace epee
{
namespace
{
template<class C> void hint_resize(C &container, size_t size) {}
template<class C> void hint_resize(std::vector<C> &container, size_t size) { container.reserve(size); }
}
namespace serialization
{
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
std::string blob((const char *)&d, sizeof(d));
return stg.set_value(pname, std::move(blob), hparent_section);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool unserialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
std::string blob;
if(!stg.get_value(pname, blob, hparent_section))
return false;
CHECK_AND_ASSERT_MES(blob.size() == sizeof(d), false, "unserialize_t_val_as_blob: size of " << typeid(t_type).name() << " = " << sizeof(t_type) << ", but stored blod size = " << blob.size() << ", value name = " << pname);
d = *(const t_type*)blob.data();
return true;
}
//-------------------------------------------------------------------------------------------------------------------
template<class serializible_type, class t_storage>
static bool serialize_t_obj(const serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
typename t_storage::hsection hchild_section = stg.open_section(pname, hparent_section, true);
CHECK_AND_ASSERT_MES(hchild_section, false, "serialize_t_obj: failed to open/create section " << pname);
return obj.store(stg, hchild_section);
}
//-------------------------------------------------------------------------------------------------------------------
template<class serializible_type, class t_storage>
static bool unserialize_t_obj(serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
typename t_storage::hsection hchild_section = stg.open_section(pname, hparent_section, false);
if(!hchild_section) return false;
return obj._load(stg, hchild_section);
}
//-------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool serialize_stl_container_t_val (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
using value_type = typename stl_container::value_type;
if(!container.size()) return true;
typename stl_container::const_iterator it = container.begin();
typename t_storage::harray hval_array = stg.insert_first_value(pname, value_type(*it), hparent_section);
CHECK_AND_ASSERT_MES(hval_array, false, "failed to insert first value to storage");
it++;
for(;it!= container.end();it++)
stg.insert_next_value(hval_array, value_type(*it));
return true;
}
//--------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool unserialize_stl_container_t_val(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
container.clear();
typename stl_container::value_type exchange_val;
typename t_storage::harray hval_array = stg.get_first_value(pname, exchange_val, hparent_section);
if(!hval_array) return false;
container.insert(container.end(), std::move(exchange_val));
while(stg.get_next_value(hval_array, exchange_val))
container.insert(container.end(), std::move(exchange_val));
return true;
}//--------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool serialize_stl_container_pod_val_as_blob(const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
if(!container.size()) return true;
std::string mb;
mb.resize(sizeof(typename stl_container::value_type)*container.size());
typename stl_container::value_type* p_elem = (typename stl_container::value_type*)mb.data();
BOOST_FOREACH(const typename stl_container::value_type& v, container)
{
*p_elem = v;
p_elem++;
}
return stg.set_value(pname, std::move(mb), hparent_section);
}
//--------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool unserialize_stl_container_pod_val_as_blob(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
container.clear();
std::string buff;
bool res = stg.get_value(pname, buff, hparent_section);
if(res)
{
size_t loaded_size = buff.size();
typename stl_container::value_type* pelem = (typename stl_container::value_type*)buff.data();
CHECK_AND_ASSERT_MES(!(loaded_size%sizeof(typename stl_container::value_type)),
false,
"size in blob " << loaded_size << " not have not zero modulo for sizeof(value_type) = " << sizeof(typename stl_container::value_type) << ", type " << typeid(typename stl_container::value_type).name());
size_t count = (loaded_size/sizeof(typename stl_container::value_type));
hint_resize(container, count);
for(size_t i = 0; i < count; i++)
container.insert(container.end(), *(pelem++));
}
return res;
}
//--------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool serialize_stl_container_t_obj (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
bool res = false;
if(!container.size()) return true;
typename stl_container::const_iterator it = container.begin();
typename t_storage::hsection hchild_section = nullptr;
typename t_storage::harray hsec_array = stg.insert_first_section(pname, hchild_section, hparent_section);
CHECK_AND_ASSERT_MES(hsec_array && hchild_section, false, "failed to insert first section with section name " << pname);
res = it->store(stg, hchild_section);
it++;
for(;it!= container.end();it++)
{
stg.insert_next_section(hsec_array, hchild_section);
res |= it->store(stg, hchild_section);
}
return res;
}
//--------------------------------------------------------------------------------------------------------------------
template<class stl_container, class t_storage>
static bool unserialize_stl_container_t_obj(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
bool res = false;
container.clear();
typename stl_container::value_type val = typename stl_container::value_type();
typename t_storage::hsection hchild_section = nullptr;
typename t_storage::harray hsec_array = stg.get_first_section(pname, hchild_section, hparent_section);
if(!hsec_array || !hchild_section) return false;
res = val._load(stg, hchild_section);
container.insert(container.end(), val);
while(stg.get_next_section(hsec_array, hchild_section))
{
typename stl_container::value_type val_l = typename stl_container::value_type();
res |= val_l._load(stg, hchild_section);
container.insert(container.end(), std::move(val_l));
}
return res;
}
//--------------------------------------------------------------------------------------------------------------------
template<bool>
struct kv_serialization_overloads_impl_is_base_serializable_types;
template<>
struct kv_serialization_overloads_impl_is_base_serializable_types<true>
{
template<class t_type, class t_storage>
static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return stg.set_value(pname, t_type(d), hparent_section);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return stg.get_value(pname, d, hparent_section);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
};
template<>
struct kv_serialization_overloads_impl_is_base_serializable_types<false>
{
template<class t_type, class t_storage>
static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_serialize(const std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
static bool kv_unserialize(std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
}
};
template<class t_storage>
struct base_serializable_types: public boost::mpl::vector<uint64_t, uint32_t, uint16_t, uint8_t, int64_t, int32_t, int16_t, int8_t, double, bool, std::string, typename t_storage::meta_entry>::type
{};
//-------------------------------------------------------------------------------------------------------------------
template<bool> struct selector;
template<>
struct selector<true>
{
template<class t_type, class t_storage>
static bool serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialize(d, stg, hparent_section, pname);
}
template<class t_type, class t_storage>
static bool serialize_stl_container_pod_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return epee::serialization::serialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname);
}
template<class t_type, class t_storage>
static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return epee::serialization::serialize_t_val_as_blob(d, stg, hparent_section, pname);
}
};
template<>
struct selector<false>
{
template<class t_type, class t_storage>
static bool serialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_unserialize(d, stg, hparent_section, pname);
}
template<class t_type, class t_storage>
static bool serialize_stl_container_pod_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return epee::serialization::unserialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname);
}
template<class t_type, class t_storage>
static bool serialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return epee::serialization::unserialize_t_val_as_blob(d, stg, hparent_section, pname);
}
};
template<class t_type, class t_storage>
bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_serialize(const std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_unserialize(std::deque<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_serialize(const std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
}
//-------------------------------------------------------------------------------------------------------------------
template<class t_type, class t_storage>
bool kv_unserialize(std::set<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
{
return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
}
}
}
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