avahi_mdns_client.h revision 494b72473a1c436751003c249e1e4a9f81102329 
1/*
2 * Copyright 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef BUFFET_AVAHI_MDNS_CLIENT_H_
18#define BUFFET_AVAHI_MDNS_CLIENT_H_
19
20#include <map>
21#include <string>
22
23#include <avahi-client/client.h>
24#include <avahi-client/publish.h>
25#include <avahi-common/thread-watch.h>
26
27#include "buffet/mdns_client.h"
28
29namespace buffet {
30
31// Publishes privet service on mDns using Avahi.
32class AvahiMdnsClient : public MdnsClient {
33 public:
34  explicit AvahiMdnsClient();
35  ~AvahiMdnsClient() override;
36
37  // weave::provider::DnsServiceDiscovery implementation.
38  void PublishService(const std::string& service_type, uint16_t port,
39                      const std::vector<std::string>& txt) override;
40  void StopPublishing(const std::string& service_type) override;
41
42 private:
43  uint16_t prev_port_{0};
44  std::string prev_type_;
45  std::string service_name_;
46  std::unique_ptr<AvahiThreadedPoll, decltype(&avahi_threaded_poll_free)>
47      thread_pool_{nullptr, &avahi_threaded_poll_free};
48  std::unique_ptr< ::AvahiClient, decltype(&avahi_client_free)> client_{
49      nullptr, &avahi_client_free};
50  std::unique_ptr<AvahiEntryGroup, decltype(&avahi_entry_group_free)> group_{
51      nullptr, &avahi_entry_group_free};
52
53  DISALLOW_COPY_AND_ASSIGN(AvahiMdnsClient);
54};
55
56}  // namespace buffet
57
58#endif  // BUFFET_AVAHI_MDNS_CLIENT_H_
59