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				https://github.com/ton-blockchain/ton
				synced 2025-03-09 15:40:10 +00:00 
			
		
		
		
	This commit contains some parts of https://github.com/ton-blockchain/ton/tree/accelerator This is auxiliary code that mostly does not change node behavior. 1) Semiprivate overlays and other improvements in overlays code 2) Rename actual_min_split -> monitor_min_split, fix building shard overlays 3) Loading block candidates by block id from DB, fix accept_block after validator restart 4) Cells: ProofStorageStat and changes in CellUsageTree 5) Remove some unused code, other minor changes
		
			
				
	
	
		
			88 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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    This file is part of TON Blockchain Library.
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    TON Blockchain Library is free software: you can redistribute it and/or modify
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    it under the terms of the GNU Lesser General Public License as published by
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    the Free Software Foundation, either version 2 of the License, or
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    (at your option) any later version.
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    TON Blockchain Library 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 Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public License
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    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "candidate-serializer.h"
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#include "tl-utils/tl-utils.hpp"
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#include "vm/boc.h"
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#include "td/utils/lz4.h"
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#include "validator-session-types.h"
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namespace ton::validatorsession {
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td::Result<td::BufferSlice> serialize_candidate(const tl_object_ptr<ton_api::validatorSession_candidate>& block,
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                                                bool compression_enabled) {
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  if (!compression_enabled) {
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    return serialize_tl_object(block, true);
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  }
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  size_t decompressed_size;
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  TRY_RESULT(compressed, compress_candidate_data(block->data_, block->collated_data_, decompressed_size))
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  return create_serialize_tl_object<ton_api::validatorSession_compressedCandidate>(
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      0, block->src_, block->round_, block->root_hash_, (int)decompressed_size, std::move(compressed));
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}
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td::Result<tl_object_ptr<ton_api::validatorSession_candidate>> deserialize_candidate(td::Slice data,
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                                                                                     bool compression_enabled,
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                                                                                     int max_decompressed_data_size) {
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  if (!compression_enabled) {
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    return fetch_tl_object<ton_api::validatorSession_candidate>(data, true);
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  }
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  TRY_RESULT(f, fetch_tl_object<ton_api::validatorSession_compressedCandidate>(data, true));
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  if (f->decompressed_size_ > max_decompressed_data_size) {
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    return td::Status::Error("decompressed size is too big");
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  }
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  TRY_RESULT(p, decompress_candidate_data(f->data_, f->decompressed_size_));
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  return create_tl_object<ton_api::validatorSession_candidate>(f->src_, f->round_, f->root_hash_, std::move(p.first),
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                                                               std::move(p.second));
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}
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td::Result<td::BufferSlice> compress_candidate_data(td::Slice block, td::Slice collated_data,
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                                                    size_t& decompressed_size) {
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  vm::BagOfCells boc1, boc2;
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  TRY_STATUS(boc1.deserialize(block));
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  if (boc1.get_root_count() != 1) {
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    return td::Status::Error("block candidate should have exactly one root");
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  }
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  std::vector<td::Ref<vm::Cell>> roots = {boc1.get_root_cell()};
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  TRY_STATUS(boc2.deserialize(collated_data));
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  for (int i = 0; i < boc2.get_root_count(); ++i) {
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    roots.push_back(boc2.get_root_cell(i));
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  }
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  TRY_RESULT(data, vm::std_boc_serialize_multi(std::move(roots), 2));
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  decompressed_size = data.size();
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  td::BufferSlice compressed = td::lz4_compress(data);
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  LOG(DEBUG) << "Compressing block candidate: " << block.size() + collated_data.size() << " -> " << compressed.size();
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  return compressed;
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}
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td::Result<std::pair<td::BufferSlice, td::BufferSlice>> decompress_candidate_data(td::Slice compressed,
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                                                                                  int decompressed_size) {
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  TRY_RESULT(decompressed, td::lz4_decompress(compressed, decompressed_size));
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  if (decompressed.size() != (size_t)decompressed_size) {
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    return td::Status::Error("decompressed size mismatch");
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  }
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  TRY_RESULT(roots, vm::std_boc_deserialize_multi(decompressed));
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  if (roots.empty()) {
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    return td::Status::Error("boc is empty");
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  }
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  TRY_RESULT(block_data, vm::std_boc_serialize(roots[0], 31));
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  roots.erase(roots.begin());
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  TRY_RESULT(collated_data, vm::std_boc_serialize_multi(std::move(roots), 31));
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  LOG(DEBUG) << "Decompressing block candidate: " << compressed.size() << " -> "
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             << block_data.size() + collated_data.size();
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  return std::make_pair(std::move(block_data), std::move(collated_data));
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}
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}  // namespace ton::validatorsession
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