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 "rtc_tools/network_tester/test_controller.h"
12
13 #include <limits>
14
15 #include "absl/types/optional.h"
16 #include "rtc_base/checks.h"
17 #include "rtc_base/ip_address.h"
18 #include "rtc_base/thread.h"
19
20 namespace webrtc {
21
TestController(int min_port,int max_port,const std::string & config_file_path,const std::string & log_file_path)22 TestController::TestController(int min_port,
23 int max_port,
24 const std::string& config_file_path,
25 const std::string& log_file_path)
26 : socket_factory_(rtc::ThreadManager::Instance()->WrapCurrentThread()),
27 config_file_path_(config_file_path),
28 packet_logger_(log_file_path),
29 local_test_done_(false),
30 remote_test_done_(false) {
31 RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
32 packet_sender_checker_.Detach();
33 send_data_.fill(42);
34 udp_socket_ =
35 std::unique_ptr<rtc::AsyncPacketSocket>(socket_factory_.CreateUdpSocket(
36 rtc::SocketAddress(rtc::GetAnyIP(AF_INET), 0), min_port, max_port));
37 udp_socket_->SignalReadPacket.connect(this, &TestController::OnReadPacket);
38 }
39
SendConnectTo(const std::string & hostname,int port)40 void TestController::SendConnectTo(const std::string& hostname, int port) {
41 RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
42 remote_address_ = rtc::SocketAddress(hostname, port);
43 NetworkTesterPacket packet;
44 packet.set_type(NetworkTesterPacket::HAND_SHAKING);
45 SendData(packet, absl::nullopt);
46 MutexLock scoped_lock(&local_test_done_lock_);
47 local_test_done_ = false;
48 remote_test_done_ = false;
49 }
50
Run()51 void TestController::Run() {
52 RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
53 rtc::Thread::Current()->ProcessMessages(0);
54 }
55
SendData(const NetworkTesterPacket & packet,absl::optional<size_t> data_size)56 void TestController::SendData(const NetworkTesterPacket& packet,
57 absl::optional<size_t> data_size) {
58 // Can be call from packet_sender or from test_controller thread.
59 size_t packet_size = packet.ByteSizeLong();
60 send_data_[0] = packet_size;
61 packet_size++;
62 packet.SerializeToArray(&send_data_[1], std::numeric_limits<char>::max());
63 if (data_size && *data_size > packet_size)
64 packet_size = *data_size;
65 udp_socket_->SendTo((const void*)send_data_.data(), packet_size,
66 remote_address_, rtc::PacketOptions());
67 }
68
OnTestDone()69 void TestController::OnTestDone() {
70 RTC_DCHECK_RUN_ON(&packet_sender_checker_);
71 NetworkTesterPacket packet;
72 packet.set_type(NetworkTesterPacket::TEST_DONE);
73 SendData(packet, absl::nullopt);
74 MutexLock scoped_lock(&local_test_done_lock_);
75 local_test_done_ = true;
76 }
77
IsTestDone()78 bool TestController::IsTestDone() {
79 RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
80 MutexLock scoped_lock(&local_test_done_lock_);
81 return local_test_done_ && remote_test_done_;
82 }
83
OnReadPacket(rtc::AsyncPacketSocket * socket,const char * data,size_t len,const rtc::SocketAddress & remote_addr,const int64_t & packet_time_us)84 void TestController::OnReadPacket(rtc::AsyncPacketSocket* socket,
85 const char* data,
86 size_t len,
87 const rtc::SocketAddress& remote_addr,
88 const int64_t& packet_time_us) {
89 RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
90 size_t packet_size = data[0];
91 std::string receive_data(&data[1], packet_size);
92 NetworkTesterPacket packet;
93 packet.ParseFromString(receive_data);
94 RTC_CHECK(packet.has_type());
95 switch (packet.type()) {
96 case NetworkTesterPacket::HAND_SHAKING: {
97 NetworkTesterPacket packet;
98 packet.set_type(NetworkTesterPacket::TEST_START);
99 remote_address_ = remote_addr;
100 SendData(packet, absl::nullopt);
101 packet_sender_.reset(new PacketSender(this, config_file_path_));
102 packet_sender_->StartSending();
103 MutexLock scoped_lock(&local_test_done_lock_);
104 local_test_done_ = false;
105 remote_test_done_ = false;
106 break;
107 }
108 case NetworkTesterPacket::TEST_START: {
109 packet_sender_.reset(new PacketSender(this, config_file_path_));
110 packet_sender_->StartSending();
111 MutexLock scoped_lock(&local_test_done_lock_);
112 local_test_done_ = false;
113 remote_test_done_ = false;
114 break;
115 }
116 case NetworkTesterPacket::TEST_DATA: {
117 packet.set_arrival_timestamp(packet_time_us);
118 packet.set_packet_size(len);
119 packet_logger_.LogPacket(packet);
120 break;
121 }
122 case NetworkTesterPacket::TEST_DONE: {
123 remote_test_done_ = true;
124 break;
125 }
126 default: {
127 RTC_NOTREACHED();
128 }
129 }
130 }
131
132 } // namespace webrtc
133