Method EnsureDecodeBuffer

cpp/src/parquet/decoder.cc:2320–2327

  }

  uint8_t* EnsureDecodeBuffer(int64_t min_values) {
    const int64_t size = this->type_length_ * min_values;
    if (!decode_buffer_ || decode_buffer_->size() < size) {
      const auto alloc_size = ::arrow::bit_util::NextPower2(size);
      PARQUET_ASSIGN_OR_THROW(decode_buffer_, ::arrow::AllocateBuffer(alloc_size));
    }
    return decode_buffer_->mutable_data();
  }

  int stride_{0};
  std::shared_ptr<Buffer> decode_buffer_;