serialize_map.h

// Copyright 2009-2021 NTESS. Under the terms
// of Contract DE-NA0003525 with NTESS, the U.S.
// Government retains certain rights in this software.
//
// Copyright (c) 2009-2021, NTESS
// All rights reserved.
//
// This file is part of the SST software package. For license
// information, see the LICENSE file in the top level directory of the
// distribution.

#ifndef SERIALIZE_MAP_H
#define SERIALIZE_MAP_H

#include <map>
#include <unordered_map>
#include "sst/core/serialization/serializer.h"

namespace SST {
namespace Core {
namespace Serialization {

template <class Key, class Value>
class serialize<std::map<Key,Value> > {
    typedef std::map<Key,Value> Map;

public:
    void operator()(Map& m, serializer& ser){
        typedef typename std::map<Key,Value>::iterator iterator;
        switch(ser.mode()) {

        case serializer::SIZER: {
            size_t size = m.size();
            ser.size(size);
            iterator it, end = m.end();
            for (it=m.begin(); it != end; ++it){
                //keys are const values - annoyingly
                serialize<Key>()(const_cast<Key&>(it->first), ser);
                serialize<Value>()(it->second, ser);
            }
            break;
        }
        case serializer::PACK: {
            size_t size = m.size();
            ser.pack(size);
            iterator it, end = m.end();
            for (it=m.begin(); it != end; ++it){
                serialize<Key>()(const_cast<Key&>(it->first), ser);
                serialize<Value>()(it->second, ser);
            }
            break;
        }
        case serializer::UNPACK: {
            size_t size;
            ser.unpack(size);
            for (size_t i=0; i < size; ++i){
                Key k = {};
                Value v = {};
                serialize<Key>()(k, ser);
                serialize<Value>()(v, ser);
                m[k] = v;
            }
            break;
        }
        }
    }
};

template <class Key, class Value>
class serialize<std::unordered_map<Key,Value> > {
    typedef std::unordered_map<Key,Value> Map;

public:
    void operator()(Map& m, serializer& ser){
        typedef typename std::unordered_map<Key,Value>::iterator iterator;
        switch(ser.mode()) {

        case serializer::SIZER: {
            size_t size = m.size();
            ser.size(size);
            iterator it, end = m.end();
            for (it=m.begin(); it != end; ++it){
                //keys are const values - annoyingly
                serialize<Key>()(const_cast<Key&>(it->first), ser);
                serialize<Value>()(it->second, ser);
            }
            break;
        }
        case serializer::PACK: {
            size_t size = m.size();
            ser.pack(size);
            iterator it, end = m.end();
            for (it=m.begin(); it != end; ++it){
                serialize<Key>()(const_cast<Key&>(it->first), ser);
                serialize<Value>()(it->second, ser);
            }
            break;
        }
        case serializer::UNPACK: {
            size_t size;
            ser.unpack(size);
            for (size_t i=0; i < size; ++i){
                Key k = {};
                Value v = {};
                serialize<Key>()(k, ser);
                serialize<Value>()(v, ser);
                m[k] = v;
            }
            break;
        }
        }
    }
};

}
}
}

#endif // SERIALIZE_MAP_H