1 /*
2  *  Copyright 2020 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef SDK_OBJC_NATIVE_SRC_OBJC_NETWORK_MONITOR_H_
12 #define SDK_OBJC_NATIVE_SRC_OBJC_NETWORK_MONITOR_H_
13 
14 #include <vector>
15 
16 #include "api/sequence_checker.h"
17 #include "rtc_base/network_monitor.h"
18 #include "rtc_base/network_monitor_factory.h"
19 #include "rtc_base/task_utils/pending_task_safety_flag.h"
20 #include "rtc_base/thread.h"
21 #include "rtc_base/thread_annotations.h"
22 #include "sdk/objc/components/network/RTCNetworkMonitor+Private.h"
23 #include "sdk/objc/native/src/network_monitor_observer.h"
24 
25 namespace webrtc {
26 
27 class ObjCNetworkMonitorFactory : public rtc::NetworkMonitorFactory {
28  public:
29   ObjCNetworkMonitorFactory() = default;
30   ~ObjCNetworkMonitorFactory() override = default;
31 
32   rtc::NetworkMonitorInterface* CreateNetworkMonitor() override;
33 };
34 
35 class ObjCNetworkMonitor : public rtc::NetworkMonitorInterface,
36                            public NetworkMonitorObserver {
37  public:
38   ObjCNetworkMonitor();
39   ~ObjCNetworkMonitor() override;
40 
41   void Start() override;
42   void Stop() override;
43 
44   rtc::AdapterType GetAdapterType(const std::string& interface_name) override;
45   rtc::AdapterType GetVpnUnderlyingAdapterType(
46       const std::string& interface_name) override;
47   rtc::NetworkPreference GetNetworkPreference(
48       const std::string& interface_name) override;
49   bool IsAdapterAvailable(const std::string& interface_name) override;
50 
51   // NetworkMonitorObserver override.
52   // Fans out updates to observers on the correct thread.
53   void OnPathUpdate(
54       std::map<std::string, rtc::AdapterType> adapter_type_by_name) override;
55 
56  private:
57   rtc::Thread* thread_ = nullptr;
58   bool started_ = false;
59   std::map<std::string, rtc::AdapterType> adapter_type_by_name_
60       RTC_GUARDED_BY(thread_);
61   rtc::scoped_refptr<PendingTaskSafetyFlag> safety_flag_;
62   RTCNetworkMonitor* network_monitor_ = nil;
63 };
64 
65 }  // namespace webrtc
66 
67 #endif  // SDK_OBJC_NATIVE_SRC_OBJC_NETWORK_MONITOR_H_
68