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f9b5b521e8
On Mac, size_t is a distinct type from uint64_t, and some types (in wallet cache as well as cold/hot wallet transfer data) use pairs/containers with size_t as fields. Mac would save those as full size, while other platforms would save them as varints. Might apply to other platforms where the types are distinct. There's a nasty hack for backward compatibility, which can go after a couple forks.
109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
// Copyright (c) 2014-2020, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <memory>
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#include <boost/type_traits/make_unsigned.hpp>
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#include "serialization.h"
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namespace serialization
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{
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namespace detail
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{
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template<typename T>
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inline constexpr bool use_pair_varint() noexcept
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{
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return std::is_integral<T>::value && std::is_unsigned<T>::value && sizeof(T) > 1;
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}
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template <typename Archive, class T>
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typename std::enable_if<!use_pair_varint<T>(), bool>::type
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serialize_pair_element(Archive& ar, T& e)
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{
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return ::do_serialize(ar, e);
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}
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template<typename Archive, typename T>
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typename std::enable_if<use_pair_varint<T>(), bool>::type
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serialize_pair_element(Archive& ar, T& e)
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{
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static constexpr const bool previously_varint = std::is_same<uint64_t, T>();
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if (!previously_varint && ar.varint_bug_backward_compatibility_enabled() && !typename Archive::is_saving())
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return ::do_serialize(ar, e);
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ar.serialize_varint(e);
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return true;
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}
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}
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}
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template <template <bool> class Archive, class F, class S>
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inline bool do_serialize(Archive<false>& ar, std::pair<F,S>& p)
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{
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size_t cnt;
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ar.begin_array(cnt);
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if (!ar.stream().good())
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return false;
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if (cnt != 2)
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return false;
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if (!::serialization::detail::serialize_pair_element(ar, p.first))
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return false;
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if (!ar.stream().good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_pair_element(ar, p.second))
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return false;
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if (!ar.stream().good())
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return false;
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ar.end_array();
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return true;
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}
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template <template <bool> class Archive, class F, class S>
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inline bool do_serialize(Archive<true>& ar, std::pair<F,S>& p)
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{
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ar.begin_array(2);
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if (!ar.stream().good())
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return false;
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if(!::serialization::detail::serialize_pair_element(ar, p.first))
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return false;
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if (!ar.stream().good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_pair_element(ar, p.second))
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return false;
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if (!ar.stream().good())
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return false;
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ar.end_array();
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return true;
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}
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