Method GetFlatbufMessage

cpp/src/arrow/ipc/reader.cc:1767–1774

  }

  Result<const flatbuf::Message*> GetFlatbufMessage(
      const std::shared_ptr<Message>& message) {
    const Buffer& metadata = *message->metadata();
    const flatbuf::Message* flatbuf_message = nullptr;
    RETURN_NOT_OK(
        internal::VerifyMessage(metadata.data(), metadata.size(), &flatbuf_message));
    return flatbuf_message;
  }

  struct CachedRecordBatchReadContext {
    CachedRecordBatchReadContext(std::shared_ptr<Schema> sch,