Method init

src/iocore/dns/DNS.cc:417–461

}

void
DNSEntry::init(DNSQueryData target, int qtype_arg, Continuation *acont, DNSProcessor::Options const &opt)
{
  qtype          = qtype_arg;
  host_res_style = opt.host_res_style;
  if (is_addr_query(qtype)) {
    // adjust things based on family preference.
    if (HOST_RES_IPV4 == host_res_style || HOST_RES_IPV4_ONLY == host_res_style) {
      qtype = T_A;
    } else if (HOST_RES_IPV6 == host_res_style || HOST_RES_IPV6_ONLY == host_res_style) {
      qtype = T_AAAA;
    }
  }
  submit_time   = ink_get_hrtime();
  action        = acont;
  submit_thread = acont->mutex->thread_holding;

  if (SplitDNSConfig::gsplit_dns_enabled) {
    dnsH = opt.handler ? opt.handler : dnsProcessor.handler;
  } else {
    dnsH = dnsProcessor.handler;
  }

  dnsH->txn_lookup_timeout = opt.timeout;

  mutex = dnsH->mutex;

  if (is_addr_query(qtype) || qtype == T_SRV) {
    auto name = target.name.substr(0, MAXDNAME); // be sure of safe copy into @a qname
    memcpy(qname, name);
    qname[name.size()] = '\0';
    orig_qname_len = qname_len = name.size();
  } else { // T_PTR
    auto addr = target.addr;
    if (addr->isIp6()) {
      orig_qname_len = qname_len = make_ipv6_ptr(&addr->_addr._ip6, qname);
    } else if (addr->isIp4()) {
      orig_qname_len = qname_len = make_ipv4_ptr(addr->_addr._ip4, qname);
    } else {
      ink_assert(!"T_PTR query to DNS must be IP address.");
    }
  }

  SET_HANDLER(&DNSEntry::mainEvent);
}

/**
 Open UDP and/or TCP connections based on dns_conn_mode