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1 /* | |
2 * Copyright 2004 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/testclient.h" | |
12 | |
13 #include "webrtc/base/gunit.h" | |
14 #include "webrtc/base/ptr_util.h" | |
15 #include "webrtc/base/thread.h" | |
16 #include "webrtc/base/timeutils.h" | |
17 | |
18 namespace rtc { | |
19 | |
20 // DESIGN: Each packet received is put it into a list of packets. | |
21 // Callers can retrieve received packets from any thread by calling | |
22 // NextPacket. | |
23 | |
24 TestClient::TestClient(std::unique_ptr<AsyncPacketSocket> socket) | |
25 : TestClient(std::move(socket), nullptr) {} | |
26 | |
27 TestClient::TestClient(std::unique_ptr<AsyncPacketSocket> socket, | |
28 FakeClock* fake_clock) | |
29 : fake_clock_(fake_clock), | |
30 socket_(std::move(socket)), | |
31 prev_packet_timestamp_(-1) { | |
32 socket_->SignalReadPacket.connect(this, &TestClient::OnPacket); | |
33 socket_->SignalReadyToSend.connect(this, &TestClient::OnReadyToSend); | |
34 } | |
35 | |
36 TestClient::~TestClient() {} | |
37 | |
38 bool TestClient::CheckConnState(AsyncPacketSocket::State state) { | |
39 // Wait for our timeout value until the socket reaches the desired state. | |
40 int64_t end = TimeAfter(kTimeoutMs); | |
41 while (socket_->GetState() != state && TimeUntil(end) > 0) { | |
42 AdvanceTime(1); | |
43 } | |
44 return (socket_->GetState() == state); | |
45 } | |
46 | |
47 int TestClient::Send(const char* buf, size_t size) { | |
48 rtc::PacketOptions options; | |
49 return socket_->Send(buf, size, options); | |
50 } | |
51 | |
52 int TestClient::SendTo(const char* buf, size_t size, | |
53 const SocketAddress& dest) { | |
54 rtc::PacketOptions options; | |
55 return socket_->SendTo(buf, size, dest, options); | |
56 } | |
57 | |
58 std::unique_ptr<TestClient::Packet> TestClient::NextPacket(int timeout_ms) { | |
59 // If no packets are currently available, we go into a get/dispatch loop for | |
60 // at most timeout_ms. If, during the loop, a packet arrives, then we can | |
61 // stop early and return it. | |
62 | |
63 // Note that the case where no packet arrives is important. We often want to | |
64 // test that a packet does not arrive. | |
65 | |
66 // Note also that we only try to pump our current thread's message queue. | |
67 // Pumping another thread's queue could lead to messages being dispatched from | |
68 // the wrong thread to non-thread-safe objects. | |
69 | |
70 int64_t end = TimeAfter(timeout_ms); | |
71 while (TimeUntil(end) > 0) { | |
72 { | |
73 CritScope cs(&crit_); | |
74 if (packets_.size() != 0) { | |
75 break; | |
76 } | |
77 } | |
78 AdvanceTime(1); | |
79 } | |
80 | |
81 // Return the first packet placed in the queue. | |
82 std::unique_ptr<Packet> packet; | |
83 CritScope cs(&crit_); | |
84 if (packets_.size() > 0) { | |
85 packet = std::move(packets_.front()); | |
86 packets_.erase(packets_.begin()); | |
87 } | |
88 | |
89 return packet; | |
90 } | |
91 | |
92 bool TestClient::CheckNextPacket(const char* buf, size_t size, | |
93 SocketAddress* addr) { | |
94 bool res = false; | |
95 std::unique_ptr<Packet> packet = NextPacket(kTimeoutMs); | |
96 if (packet) { | |
97 res = (packet->size == size && memcmp(packet->buf, buf, size) == 0 && | |
98 CheckTimestamp(packet->packet_time.timestamp)); | |
99 if (addr) | |
100 *addr = packet->addr; | |
101 } | |
102 return res; | |
103 } | |
104 | |
105 bool TestClient::CheckTimestamp(int64_t packet_timestamp) { | |
106 bool res = true; | |
107 if (packet_timestamp == -1) { | |
108 res = false; | |
109 } | |
110 if (prev_packet_timestamp_ != -1) { | |
111 if (packet_timestamp < prev_packet_timestamp_) { | |
112 res = false; | |
113 } | |
114 } | |
115 prev_packet_timestamp_ = packet_timestamp; | |
116 return res; | |
117 } | |
118 | |
119 void TestClient::AdvanceTime(int ms) { | |
120 // If the test is using a fake clock, we must advance the fake clock to | |
121 // advance time. Otherwise, ProcessMessages will work. | |
122 if (fake_clock_) { | |
123 SIMULATED_WAIT(false, ms, *fake_clock_); | |
124 } else { | |
125 Thread::Current()->ProcessMessages(1); | |
126 } | |
127 } | |
128 | |
129 bool TestClient::CheckNoPacket() { | |
130 return NextPacket(kNoPacketTimeoutMs) == nullptr; | |
131 } | |
132 | |
133 int TestClient::GetError() { | |
134 return socket_->GetError(); | |
135 } | |
136 | |
137 int TestClient::SetOption(Socket::Option opt, int value) { | |
138 return socket_->SetOption(opt, value); | |
139 } | |
140 | |
141 void TestClient::OnPacket(AsyncPacketSocket* socket, const char* buf, | |
142 size_t size, const SocketAddress& remote_addr, | |
143 const PacketTime& packet_time) { | |
144 CritScope cs(&crit_); | |
145 packets_.push_back(MakeUnique<Packet>(remote_addr, buf, size, packet_time)); | |
146 } | |
147 | |
148 void TestClient::OnReadyToSend(AsyncPacketSocket* socket) { | |
149 ++ready_to_send_count_; | |
150 } | |
151 | |
152 TestClient::Packet::Packet(const SocketAddress& a, | |
153 const char* b, | |
154 size_t s, | |
155 const PacketTime& packet_time) | |
156 : addr(a), buf(0), size(s), packet_time(packet_time) { | |
157 buf = new char[size]; | |
158 memcpy(buf, b, size); | |
159 } | |
160 | |
161 TestClient::Packet::Packet(const Packet& p) | |
162 : addr(p.addr), buf(0), size(p.size), packet_time(p.packet_time) { | |
163 buf = new char[size]; | |
164 memcpy(buf, p.buf, size); | |
165 } | |
166 | |
167 TestClient::Packet::~Packet() { | |
168 delete[] buf; | |
169 } | |
170 | |
171 } // namespace rtc | |
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