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131 lines
3.8 KiB
C++
131 lines
3.8 KiB
C++
#include <iostream>
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#include <boost/program_options.hpp>
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#include <IO/CompressedWriteBuffer.h>
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#include <IO/CompressedReadBuffer.h>
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#include <IO/WriteHelpers.h>
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#include <IO/Operators.h>
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#include <IO/ReadBufferFromFile.h>
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#include <IO/ReadHelpers.h>
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#include <IO/WriteBufferFromFileDescriptor.h>
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#include <IO/CompressedReadBufferFromFile.h>
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/** This program checks correctness of .mrk (marks) file for corresponding compressed .bin file.
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*/
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int TOO_LARGE_SIZE_COMPRESSED;
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}
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}
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/// Read and check header of compressed block. Print size of decompressed and compressed data.
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std::pair<UInt32, UInt32> stat(DB::ReadBuffer & in, DB::WriteBuffer & out)
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{
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if (in.eof())
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return {};
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in.ignore(16); /// checksum
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char header[COMPRESSED_BLOCK_HEADER_SIZE];
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in.readStrict(header, COMPRESSED_BLOCK_HEADER_SIZE);
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UInt32 size_compressed = unalignedLoad<UInt32>(&header[1]);
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if (size_compressed > DBMS_MAX_COMPRESSED_SIZE)
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throw DB::Exception("Too large size_compressed. Most likely corrupted data.", DB::ErrorCodes::TOO_LARGE_SIZE_COMPRESSED);
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UInt32 size_decompressed = unalignedLoad<UInt32>(&header[5]);
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return {size_compressed, size_decompressed};
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}
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void checkCompressedHeaders(const std::string & mrk_path, const std::string & bin_path)
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{
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DB::ReadBufferFromFile mrk_in(mrk_path);
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DB::ReadBufferFromFile bin_in(bin_path, 4096); /// Small buffer size just to check header of compressed block.
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DB::WriteBufferFromFileDescriptor out(STDOUT_FILENO);
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for (size_t mark_num = 0; !mrk_in.eof(); ++mark_num)
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{
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UInt64 offset_in_compressed_file = 0;
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UInt64 offset_in_decompressed_block = 0;
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DB::readBinary(offset_in_compressed_file, mrk_in);
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DB::readBinary(offset_in_decompressed_block, mrk_in);
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out << "Mark " << mark_num << ", points to " << offset_in_compressed_file << ", " << offset_in_decompressed_block << ". ";
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bin_in.seek(offset_in_compressed_file);
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auto sizes = stat(bin_in, out);
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out << "Block sizes: " << sizes.first << ", " << sizes.second << '\n' << DB::flush;
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}
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}
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void checkByCompressedReadBuffer(const std::string & mrk_path, const std::string & bin_path)
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{
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DB::ReadBufferFromFile mrk_in(mrk_path);
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DB::CompressedReadBufferFromFile bin_in(bin_path, 0, 0);
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DB::WriteBufferFromFileDescriptor out(STDOUT_FILENO);
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for (size_t mark_num = 0; !mrk_in.eof(); ++mark_num)
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{
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UInt64 offset_in_compressed_file = 0;
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UInt64 offset_in_decompressed_block = 0;
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DB::readBinary(offset_in_compressed_file, mrk_in);
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DB::readBinary(offset_in_decompressed_block, mrk_in);
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out << "Mark " << mark_num << ", points to " << offset_in_compressed_file << ", " << offset_in_decompressed_block << ".\n" << DB::flush;
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bin_in.seek(offset_in_compressed_file, offset_in_decompressed_block);
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}
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}
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int main(int argc, char ** argv)
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{
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boost::program_options::options_description desc("Allowed options");
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desc.add_options()
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("help,h", "produce help message")
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;
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boost::program_options::variables_map options;
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boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);
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if (options.count("help") || argc != 3)
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{
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std::cout << "Usage: " << argv[0] << " file.mrk file.bin" << std::endl;
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std::cout << desc << std::endl;
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return 1;
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}
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try
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{
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/// checkCompressedHeaders(argv[1], argv[2]);
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checkByCompressedReadBuffer(argv[1], argv[2]);
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}
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catch (const DB::Exception & e)
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{
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std::cerr << e.what() << ", " << e.message() << std::endl
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<< std::endl
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<< "Stack trace:" << std::endl
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<< e.getStackTrace().toString()
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<< std::endl;
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throw;
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}
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return 0;
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}
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