mirror of https://github.com/bitcoin/bitcoin
index: blockfilter, decouple header lookup into its own function
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@ -222,6 +222,22 @@ size_t BlockFilterIndex::WriteFilterToDisk(FlatFilePos& pos, const BlockFilter&
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return data_size;
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}
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std::optional<uint256> BlockFilterIndex::ReadFilterHeader(int height, const uint256& expected_block_hash)
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{
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std::pair<uint256, DBVal> read_out;
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if (!m_db->Read(DBHeightKey(height), read_out)) {
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return std::nullopt;
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}
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if (read_out.first != expected_block_hash) {
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LogError("%s: previous block header belongs to unexpected block %s; expected %s\n",
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__func__, read_out.first.ToString(), expected_block_hash.ToString());
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return std::nullopt;
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}
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return read_out.second.header;
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}
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bool BlockFilterIndex::CustomAppend(const interfaces::BlockInfo& block)
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{
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CBlockUndo block_undo;
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@ -235,19 +251,9 @@ bool BlockFilterIndex::CustomAppend(const interfaces::BlockInfo& block)
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return false;
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}
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std::pair<uint256, DBVal> read_out;
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if (!m_db->Read(DBHeightKey(block.height - 1), read_out)) {
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return false;
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}
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uint256 expected_block_hash = *Assert(block.prev_hash);
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if (read_out.first != expected_block_hash) {
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LogError("%s: previous block header belongs to unexpected block %s; expected %s\n",
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__func__, read_out.first.ToString(), expected_block_hash.ToString());
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return false;
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}
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prev_header = read_out.second.header;
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auto op_prev_header = ReadFilterHeader(block.height - 1, *Assert(block.prev_hash));
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if (!op_prev_header) return false;
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prev_header = *op_prev_header;
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}
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BlockFilter filter(m_filter_type, *Assert(block.data), block_undo);
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@ -46,6 +46,8 @@ private:
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bool Write(const BlockFilter& filter, uint32_t block_height, const uint256& filter_header);
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std::optional<uint256> ReadFilterHeader(int height, const uint256& expected_block_hash);
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protected:
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bool CustomInit(const std::optional<interfaces::BlockKey>& block) override;
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