Method GetNextByte

lib/mdflib/mdflib/src/readcache.cpp:351–403

}

bool ReadCache::GetNextByte(uint8_t &input) {
  if ( file_index_ < data_size_) {
    if (file_buffer_.empty()) {
      // Read direct from the file
     input = buffer_.sbumpc();
    } else {
      // Read from buffer in case of DZ block
      input = file_buffer_[file_index_];
    }
    ++file_index_;
    ++data_count_;
    return true;
  }

  if (block_index_ >= block_list_.size()) {
    return false;
  }

  auto* current_block = block_list_[block_index_];
  ++block_index_;
  if (current_block == nullptr) {
    return false;
  }
  file_index_ = 0;
  data_size_ = current_block->DataSize();
  if (current_block->BlockType() == "DZ") {
    // Need a temp buffer in between
    try {
      file_buffer_.resize(static_cast<size_t>(data_size_) );
    } catch (const std::exception&) {
       return false;
    }

    uint64_t temp_index = 0;
    current_block->CopyDataToBuffer(buffer_,file_buffer_, temp_index);
  } else {
    // Read from the file directly
    SetFilePosition(buffer_, current_block->DataPosition());
    file_buffer_.clear(); // Indicate that we read from the file directly
  }
    // Read in the data form file to
  if (file_index_ >= data_size_) {
    return false;
  }
  if (file_buffer_.empty()) {
    input = buffer_.sbumpc();
  } else {
    input = file_buffer_[file_index_];
  }
  ++file_index_;
  ++data_count_;
  return true;
}

uint64_t ReadCache::ParseRecordId() {
  if (dg4_block_ == nullptr) {