1  // Copyright (c) 2023-present The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <bench/bench.h>
 6  #include <streams.h>
 7  #include <test/util/setup_common.h>
 8  #include <util/fs.h>
 9  
10  #include <cstddef>
11  #include <cstdint>
12  #include <cstdio>
13  
14  static void FindByte(benchmark::Bench& bench)
15  {
16      const auto testing_setup{MakeNoLogFileContext<const BasicTestingSetup>(ChainType::REGTEST)};
17      AutoFile file{fsbridge::fopen(testing_setup->m_path_root / "streams_tmp", "w+b")};
18      const size_t file_size = 200;
19      uint8_t data[file_size] = {0};
20      data[file_size - 1] = 1;
21      file << data;
22      file.seek(0, SEEK_SET);
23      BufferedFile bf{file, /*nBufSize=*/file_size + 1, /*nRewindIn=*/file_size};
24  
25      bench.setup([&] { bf.SetPos(0); })
26          .run([&] { bf.FindByte(std::byte(1)); });
27  
28      assert(file.fclose() == 0);
29  }
30  
31  BENCHMARK(FindByte);