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PacketBuffer/include/PacketBuffer/Serializer/Std/Set.h

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/*
* Copyright (c) 2017, Rogiel Sulzbach
* 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 Rogiel Sulzbach nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
*/
#ifndef PACKETBUFFER_SERIALIZER_STD_SET_H
#define PACKETBUFFER_SERIALIZER_STD_SET_H
#include "PacketBuffer/ObjectSerializer.h"
#include <set>
#include <unordered_set>
namespace PacketBuffer {
/**
* A ObjectSerializer for std::set with elements of type <tt>T</tt>,
* comparison functor of type <tt>Compare</tt> and using an allocator
* of type <tt>Allocator</tt>.
*
* @code
* (
* uint64_t: size
* T: element[0]
* T: element[1]
* ...
* T: element[size-1]
* )
* @endcode
*
* @tparam T the set element key
* @tparam Compare the set comparison functor
* @tparam Allocator the set allocator type
*/
template<typename T, typename Compare, typename Allocator>
class ObjectSerializer<std::set<T, Compare, Allocator>> {
public:
template<typename Packer>
static inline void pack(Packer& packer, const std::set<T, Compare, Allocator>& set) {
auto items = static_cast<uint64_t>(set.size());
packer(items);
for(auto& entry : set) {
packer(entry);
}
}
template<typename Unpacker>
static inline void unpack(Unpacker& unpacker, std::set<T, Compare, Allocator>& set) {
uint64_t items;
unpacker(items);
for(int i = 0; i < items; i++) {
T v;
unpacker(v);
set.insert(v);
}
}
};
/**
* A ObjectSerializer for std::unordered_set with elements of type
* <tt>T</tt>, hash functor of type <tt>Hash</tt>, predicate of type
* <tt>Predicate</tt> and using an allocator of type <tt>Allocator</tt>.
*
* @code
* (
* uint64_t: size
* T: element[0]
* T: element[1]
* ...
* T: element[size-1]
* )
* @endcode
*
* @tparam T the set element key
* @tparam Hash the set hash functor
* @tparam Predicate the set predicate functor
* @tparam Allocator the set allocator type
*/
template<typename T, typename Hash, typename Predicate, typename Allocator>
class ObjectSerializer<std::unordered_set<T, Hash, Predicate, Allocator>> {
public:
template<typename Packer>
static inline void pack(Packer& packer, const std::unordered_set<T, Hash, Predicate, Allocator>& set) {
auto items = static_cast<uint64_t>(set.size());
packer(items);
for(auto& entry : set) {
packer(entry);
}
}
template<typename Unpacker>
static inline void unpack(Unpacker& unpacker, std::unordered_set<T, Hash, Predicate, Allocator>& set) {
uint64_t items;
unpacker(items);
set.reserve(items);
for(int i = 0; i < items; i++) {
T v;
unpacker(v);
set.insert(v);
}
}
};
}
#endif //PACKETBUFFER_SERIALIZER_STD_SET_H