Method make_space

libhsclient/string_buffer.hpp:81–84

    }
  }
  char *make_space(size_t len) {
    reserve(size() + len);
    return buffer + end_offset;
  }
  void space_wrote(size_t len) {
    len = std::min(len, alloc_size - end_offset);
    end_offset += len;