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1 /* | |
2 * Copyright 2015 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 #include "webrtc/base/networkmonitor.h" | |
12 | |
13 #include "webrtc/base/checks.h" | |
14 | |
15 namespace { | |
16 const uint32_t UPDATE_NETWORKS_MESSAGE = 1; | |
17 | |
18 // This is set by NetworkMonitorFactory::SetFactory and the caller of | |
19 // NetworkMonitorFactory::SetFactory must be responsible for calling | |
20 // ReleaseFactory to destroy the factory. | |
21 rtc::NetworkMonitorFactory* network_monitor_factory = nullptr; | |
22 } // namespace | |
23 | |
24 namespace rtc { | |
25 NetworkMonitorInterface::NetworkMonitorInterface() {} | |
26 | |
27 NetworkMonitorInterface::~NetworkMonitorInterface() {} | |
28 | |
29 NetworkMonitorBase::NetworkMonitorBase() : worker_thread_(Thread::Current()) {} | |
30 NetworkMonitorBase::~NetworkMonitorBase() {} | |
31 | |
32 void NetworkMonitorBase::OnNetworksChanged() { | |
33 LOG(LS_VERBOSE) << "Network change is received at the network monitor"; | |
34 worker_thread_->Post(RTC_FROM_HERE, this, UPDATE_NETWORKS_MESSAGE); | |
35 } | |
36 | |
37 void NetworkMonitorBase::OnMessage(Message* msg) { | |
38 RTC_DCHECK(msg->message_id == UPDATE_NETWORKS_MESSAGE); | |
39 SignalNetworksChanged(); | |
40 } | |
41 | |
42 NetworkMonitorFactory::NetworkMonitorFactory() {} | |
43 NetworkMonitorFactory::~NetworkMonitorFactory() {} | |
44 | |
45 void NetworkMonitorFactory::SetFactory(NetworkMonitorFactory* factory) { | |
46 if (network_monitor_factory != nullptr) { | |
47 delete network_monitor_factory; | |
48 } | |
49 network_monitor_factory = factory; | |
50 } | |
51 | |
52 void NetworkMonitorFactory::ReleaseFactory(NetworkMonitorFactory* factory) { | |
53 if (factory == network_monitor_factory) { | |
54 SetFactory(nullptr); | |
55 } | |
56 } | |
57 | |
58 NetworkMonitorFactory* NetworkMonitorFactory::GetFactory() { | |
59 return network_monitor_factory; | |
60 } | |
61 | |
62 } // namespace rtc | |
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