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1 /* | |
2 * Copyright 2017 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/pc/ortcfactory.h" | |
12 | |
13 #include <string> | |
14 #include <utility> // For std::move. | |
15 | |
16 #include "webrtc/base/bind.h" | |
17 #include "webrtc/base/asyncpacketsocket.h" | |
18 #include "webrtc/p2p/base/basicpacketsocketfactory.h" | |
19 #include "webrtc/p2p/base/udptransport.h" | |
20 | |
21 namespace webrtc { | |
22 | |
23 // static | |
24 std::unique_ptr<OrtcFactoryInterface> OrtcFactoryInterface::Create( | |
25 rtc::Thread* network_thread, | |
26 rtc::Thread* signaling_thread, | |
27 rtc::NetworkManager* network_manager, | |
28 rtc::PacketSocketFactory* socket_factory) { | |
29 // Hop to signaling thread if needed. | |
30 if (signaling_thread && !signaling_thread->IsCurrent()) { | |
31 // The template parameters are necessary because there are two | |
32 // OrtcFactoryInterface::Create methods, so the types can't be derived from | |
33 // just the function pointer. | |
34 return signaling_thread->Invoke<std::unique_ptr<OrtcFactoryInterface>>( | |
35 RTC_FROM_HERE, | |
36 rtc::Bind<std::unique_ptr<OrtcFactoryInterface>, rtc::Thread*, | |
37 rtc::Thread*, rtc::NetworkManager*, | |
38 rtc::PacketSocketFactory*>(&OrtcFactoryInterface::Create, | |
39 network_thread, signaling_thread, | |
40 network_manager, socket_factory)); | |
41 } | |
42 OrtcFactory* new_factory = | |
43 new OrtcFactory(network_thread, signaling_thread, | |
44 network_manager, socket_factory); | |
45 // Return a proxy so that any calls on the returned object (including | |
46 // destructor) happen on the signaling thread. | |
47 return OrtcFactoryProxy::Create(new_factory->signaling_thread(), | |
48 new_factory->network_thread(), new_factory); | |
49 } | |
50 | |
51 OrtcFactory::OrtcFactory(rtc::Thread* network_thread, | |
52 rtc::Thread* signaling_thread, | |
53 rtc::NetworkManager* network_manager, | |
54 rtc::PacketSocketFactory* socket_factory) | |
55 : network_thread_(network_thread), | |
56 signaling_thread_(signaling_thread), | |
57 network_manager_(network_manager), | |
58 socket_factory_(socket_factory) { | |
59 if (!network_thread_) { | |
60 owned_network_thread_ = rtc::Thread::CreateWithSocketServer(); | |
61 owned_network_thread_->Start(); | |
62 network_thread_ = owned_network_thread_.get(); | |
63 } | |
64 | |
65 // The worker thread is created internally because it's an implementation | |
66 // detail, and consumers of the API don't need to really know about it. | |
67 owned_worker_thread_ = rtc::Thread::Create(); | |
68 owned_worker_thread_->Start(); | |
69 | |
70 if (signaling_thread_) { | |
71 RTC_DCHECK_RUN_ON(signaling_thread_); | |
72 } else { | |
73 signaling_thread_ = rtc::Thread::Current(); | |
74 if (!signaling_thread_) { | |
75 // If this thread isn't already wrapped by an rtc::Thread, create a | |
76 // wrapper and own it in this class. | |
77 signaling_thread_ = rtc::ThreadManager::Instance()->WrapCurrentThread(); | |
78 wraps_signaling_thread_ = true; | |
79 } | |
80 } | |
81 if (!network_manager_) { | |
82 owned_network_manager_.reset(new rtc::BasicNetworkManager()); | |
83 network_manager_ = owned_network_manager_.get(); | |
84 } | |
85 if (!socket_factory_) { | |
86 owned_socket_factory_.reset( | |
87 new rtc::BasicPacketSocketFactory(network_thread_)); | |
88 socket_factory_ = owned_socket_factory_.get(); | |
89 } | |
90 } | |
91 | |
92 OrtcFactory::~OrtcFactory() { | |
93 RTC_DCHECK_RUN_ON(signaling_thread_); | |
94 if (wraps_signaling_thread_) { | |
95 rtc::ThreadManager::Instance()->UnwrapCurrentThread(); | |
96 } | |
97 } | |
98 | |
99 std::unique_ptr<UdpTransportInterface> OrtcFactory::CreateUdpTransport( | |
100 int family, | |
101 uint16_t min_port, | |
102 uint16_t max_port) { | |
103 if (!network_thread_->IsCurrent()) { | |
104 RTC_DCHECK_RUN_ON(signaling_thread_); | |
105 return network_thread_->Invoke<std::unique_ptr<UdpTransportInterface>>( | |
106 RTC_FROM_HERE, rtc::Bind(&OrtcFactory::CreateUdpTransport, this, family, | |
107 min_port, max_port)); | |
108 } | |
109 std::unique_ptr<rtc::AsyncPacketSocket> socket( | |
110 socket_factory_->CreateUdpSocket( | |
111 rtc::SocketAddress(rtc::GetAnyIP(family), 0), min_port, max_port)); | |
112 if (!socket) { | |
113 LOG(LS_WARNING) << "Local socket allocation failure."; | |
114 return nullptr; | |
115 } | |
116 LOG(LS_INFO) << "Created UDP socket with address " | |
117 << socket->GetLocalAddress().ToSensitiveString() << "."; | |
118 // Use proxy so that calls to the returned object are invoked on the network | |
119 // thread. | |
120 return UdpTransportProxy::Create( | |
121 signaling_thread_, network_thread_, | |
122 new cricket::UdpTransport(std::string(), std::move(socket))); | |
123 } | |
124 | |
125 } // namespace webrtc | |
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