Method Reserve

cpp/src/arrow/array/builder_binary.cc:252–271

}

Status ChunkedBinaryBuilder::Reserve(int64_t values) {
  if (ARROW_PREDICT_FALSE(extra_capacity_ != 0)) {
    extra_capacity_ += values;
    return Status::OK();
  }

  auto current_capacity = builder_->capacity();
  auto min_capacity = builder_->length() + values;
  if (current_capacity >= min_capacity) {
    return Status::OK();
  }

  auto new_capacity = BufferBuilder::GrowByFactor(current_capacity, min_capacity);
  if (ARROW_PREDICT_TRUE(new_capacity <= max_chunk_length_)) {
    return builder_->Resize(new_capacity);
  }

  extra_capacity_ = new_capacity - max_chunk_length_;
  return builder_->Resize(max_chunk_length_);
}

}  // namespace internal