monero/src/serialization/set.h

128 lines
4.3 KiB
C++

// Copyright (c) 2014-2017, 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"
template <template <bool> class Archive, class T>
bool do_serialize(Archive<false> &ar, std::set<T> &v);
template <template <bool> class Archive, class T>
bool do_serialize(Archive<true> &ar, std::set<T> &v);
template <template <bool> class Archive, class T>
bool do_serialize(Archive<false> &ar, std::unordered_set<T> &v);
template <template <bool> class Archive, class T>
bool do_serialize(Archive<true> &ar, std::unordered_set<T> &v);
namespace serialization
{
namespace detail
{
template <typename Archive, class T>
bool serialize_set_element(Archive& ar, T& e)
{
return ::do_serialize(ar, e);
}
template <typename Archive>
bool serialize_set_element(Archive& ar, uint32_t& e)
{
ar.serialize_varint(e);
return true;
}
template <typename Archive>
bool serialize_set_element(Archive& ar, uint64_t& e)
{
ar.serialize_varint(e);
return true;
}
}
}
template <template <bool> class Archive, class T>
bool do_serialize_set(Archive<false> &ar, T &v)
{
size_t cnt;
ar.begin_array(cnt);
if (!ar.stream().good())
return false;
v.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();
typename T::key_type k;
if (!::serialization::detail::serialize_set_element(ar, k))
return false;
v.insert(std::move(k));
if (!ar.stream().good())
return false;
}
ar.end_array();
return true;
}
template <template <bool> class Archive, class T>
bool do_serialize_set(Archive<true> &ar, T &v)
{
size_t cnt = v.size();
ar.begin_array(cnt);
bool first = true;
for (const typename T::key_type &k: v) {
if (!ar.stream().good())
return false;
if (!first)
ar.delimit_array();
if(!::serialization::detail::serialize_set_element(ar, const_cast<typename T::key_type&>(k)))
return false;
if (!ar.stream().good())
return false;
first = false;
}
ar.end_array();
return true;
}
template <template <bool> class Archive, class T>
bool do_serialize(Archive<false> &ar, std::set<T> &v) { return do_serialize_set(ar, v); }
template <template <bool> class Archive, class T>
bool do_serialize(Archive<true> &ar, std::set<T> &v) { return do_serialize_set(ar, v); }
template <template <bool> class Archive, class T>
bool do_serialize(Archive<false> &ar, std::unordered_set<T> &v) { return do_serialize_set(ar, v); }
template <template <bool> class Archive, class T>
bool do_serialize(Archive<true> &ar, std::unordered_set<T> &v) { return do_serialize_set(ar, v); }