Method get_header

src/iocore/cache/CacheVC.h:64–75

  }

  int
  get_header(void **ptr, int *len) override
  {
    if (first_buf) {
      Doc *doc = reinterpret_cast<Doc *>(first_buf->data());
      *ptr     = doc->hdr();
      *len     = doc->hlen;
      return 0;
    }

    return -1;
  }

  int
  set_header(void *ptr, int len) override