90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2016-2023 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FLOWEE_PROTOBUILDER_H
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#define FLOWEE_PROTOBUILDER_H
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#include "ConstBuffer.h"
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#include <uint256.h>
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namespace Streaming {
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class BufferPool;
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class ProtoBuilder
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{
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public:
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ProtoBuilder(BufferPool &pool);
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ProtoBuilder(ProtoBuilder &o) = delete;
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void add(uint32_t tag, uint64_t value);
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/// add an utf8 string
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void add(uint32_t tag, const std::string &value);
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inline void add(uint32_t tag, const char *utf8String) {
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return add(tag, std::string(utf8String));
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}
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void add(uint32_t tag, const std::vector<char> &data);
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void add(uint32_t tag, const ConstBuffer &data);
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void addByteArray(uint32_t tag, const void *data, int bytes);
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void add(uint32_t tag, bool value);
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void add(uint32_t tag, int32_t value);
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void add(uint32_t tag, double value);
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template<unsigned int BITS>
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void add(uint32_t tag, const base_blob<BITS> &value) {
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addByteArray(tag, static_cast<const void*>(value.begin()), static_cast<int>(value.size()));
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}
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void add(uint32_t tag, const std::vector<uint8_t> &data) {
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addByteArray(tag, static_cast<const void*>(data.data()), static_cast<int>(data.size()));
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}
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void add(uint32_t tag, const std::vector<int8_t> &data) {
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addByteArray(tag, static_cast<const void*>(data.data()), static_cast<int>(data.size()));
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}
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inline void add(uint32_t tag, float value) {
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add(tag, (double) value);
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}
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/**
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* This allows you to embed a message inside of this message.
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* The nested message will be built and after that message is finished
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* it will be copied and included into this builder as a 'data' object
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* which will have the tag \a tag.
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*
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* Notice that adding anything to this builder or calling buffer() will
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* finish the nested builder.
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*/
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ProtoBuilder *addNestedMessage(uint32_t tag);
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/**
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* @brief buffer returns a buffer object for the message we've built.
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*/
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ConstBuffer buffer();
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ProtoBuilder* operator=(const ProtoBuilder &o) = delete;
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private:
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void add(uint32_t tag, const unsigned char *data, unsigned int length);
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void handleNestedBuilder();
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BufferPool *m_buffer;
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ProtoBuilder *m_nestedBuilder = nullptr;
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BufferPool *m_nestedBufferPool = nullptr;
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};
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}
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#endif
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