Method write

bolt/common/memory/ByteStream.h:91–96

      : OutputStream(listener), out_(out) {}

  void write(const char* s, std::streamsize count) override {
    out_->write(s, count);
    if (listener_) {
      listener_->onWrite(s, count);
    }
  }

  std::streampos tellp() const override {
    return out_->tellp();