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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
parent 4af19165ec
commit 68073add76
12458 changed files with 12350765 additions and 2 deletions
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57
libs/search/base/text_index/header.hpp Normal file
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#pragma once
#include "search/base/text_index/text_index.hpp"
#include "coding/reader.hpp"
#include "coding/write_to_sink.hpp"
#include "base/assert.hpp"
#include <cstdint>
#include <string>
namespace search_base
{
struct TextIndexHeader
{
template <typename Sink>
void Serialize(Sink & sink) const
{
CHECK_EQUAL(m_version, TextIndexVersion::V0, ());
sink.Write(kHeaderMagic.data(), kHeaderMagic.size());
WriteToSink(sink, static_cast<uint8_t>(m_version));
WriteToSink(sink, m_numTokens);
WriteToSink(sink, m_dictPositionsOffset);
WriteToSink(sink, m_dictWordsOffset);
WriteToSink(sink, m_postingsStartsOffset);
WriteToSink(sink, m_postingsListsOffset);
}
template <typename Source>
void Deserialize(Source & source)
{
CHECK_EQUAL(m_version, TextIndexVersion::V0, ());
std::string headerMagic(kHeaderMagic.size(), ' ');
source.Read(&headerMagic[0], headerMagic.size());
CHECK_EQUAL(headerMagic, kHeaderMagic, ());
m_version = static_cast<TextIndexVersion>(ReadPrimitiveFromSource<uint8_t>(source));
CHECK_EQUAL(m_version, TextIndexVersion::V0, ());
m_numTokens = ReadPrimitiveFromSource<uint32_t>(source);
m_dictPositionsOffset = ReadPrimitiveFromSource<uint32_t>(source);
m_dictWordsOffset = ReadPrimitiveFromSource<uint32_t>(source);
m_postingsStartsOffset = ReadPrimitiveFromSource<uint32_t>(source);
m_postingsListsOffset = ReadPrimitiveFromSource<uint32_t>(source);
}
static std::string const kHeaderMagic;
TextIndexVersion m_version = TextIndexVersion::Latest;
uint32_t m_numTokens = 0;
uint32_t m_dictPositionsOffset = 0;
uint32_t m_dictWordsOffset = 0;
uint32_t m_postingsStartsOffset = 0;
uint32_t m_postingsListsOffset = 0;
};
} // namespace search_base