Add first part of the network_tester functionality.
BUG=webrtc:7426
Review-Url: https://codereview.webrtc.org/2779233002
Cr-Commit-Position: refs/heads/master@{#17635}
diff --git a/webrtc/tools/network_tester/test_controller.cc b/webrtc/tools/network_tester/test_controller.cc
new file mode 100644
index 0000000..713a974
--- /dev/null
+++ b/webrtc/tools/network_tester/test_controller.cc
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/tools/network_tester/test_controller.h"
+
+namespace webrtc {
+
+TestController::TestController(int min_port,
+ int max_port,
+ const std::string& config_file_path)
+ : config_file_path_(config_file_path),
+ local_test_done_(false),
+ remote_test_done_(false) {
+ RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+ send_data_.fill(42);
+ packet_sender_checker_.Detach();
+ auto socket =
+ std::unique_ptr<rtc::AsyncPacketSocket>(socket_factory_.CreateUdpSocket(
+ rtc::SocketAddress(rtc::GetAnyIP(AF_INET), 0), min_port, max_port));
+ socket->SignalReadPacket.connect(this, &TestController::OnReadPacket);
+ udp_transport_.reset(
+ new cricket::UdpTransport("network tester transport", std::move(socket)));
+}
+
+void TestController::SendConnectTo(const std::string& hostname, int port) {
+ RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+ udp_transport_->SetRemoteAddress(rtc::SocketAddress(hostname, port));
+ NetworkTesterPacket packet;
+ packet.set_type(NetworkTesterPacket::HAND_SHAKING);
+ SendData(packet, rtc::Optional<size_t>());
+ rtc::CritScope scoped_lock(&local_test_done_lock_);
+ local_test_done_ = false;
+ remote_test_done_ = false;
+}
+
+void TestController::Run() {
+ RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+ rtc::Thread::Current()->ProcessMessages(0);
+}
+
+void TestController::SendData(const NetworkTesterPacket& packet,
+ rtc::Optional<size_t> data_size) {
+ // Can be call from packet_sender or from test_controller thread.
+ size_t packet_size = packet.ByteSize();
+ send_data_[0] = packet_size;
+ packet.SerializeToArray(&send_data_[1], std::numeric_limits<char>::max());
+ if (data_size && *data_size > packet_size)
+ packet_size = *data_size;
+ udp_transport_->SendPacket(send_data_.data(), packet_size + 1,
+ rtc::PacketOptions(), 0);
+}
+
+void TestController::OnTestDone() {
+ RTC_DCHECK_CALLED_SEQUENTIALLY(&packet_sender_checker_);
+ NetworkTesterPacket packet;
+ packet.set_type(NetworkTesterPacket::TEST_DONE);
+ SendData(packet, rtc::Optional<size_t>());
+ rtc::CritScope scoped_lock(&local_test_done_lock_);
+ local_test_done_ = true;
+}
+
+bool TestController::IsTestDone() {
+ RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+ rtc::CritScope scoped_lock(&local_test_done_lock_);
+ return local_test_done_ && remote_test_done_;
+}
+
+void TestController::OnReadPacket(rtc::AsyncPacketSocket* socket,
+ const char* data,
+ size_t len,
+ const rtc::SocketAddress& remote_addr,
+ const rtc::PacketTime& packet_time) {
+ RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
+ size_t packet_size = data[0];
+ std::string receive_data(&data[1], packet_size);
+ NetworkTesterPacket packet;
+ packet.ParseFromString(receive_data);
+ RTC_CHECK(packet.has_type());
+ switch (packet.type()) {
+ case NetworkTesterPacket::HAND_SHAKING: {
+ NetworkTesterPacket packet;
+ packet.set_type(NetworkTesterPacket::TEST_START);
+ udp_transport_->SetRemoteAddress(remote_addr);
+ SendData(packet, rtc::Optional<size_t>());
+ packet_sender_.reset(new PacketSender(this, config_file_path_));
+ packet_sender_->StartSending();
+ rtc::CritScope scoped_lock(&local_test_done_lock_);
+ local_test_done_ = false;
+ remote_test_done_ = false;
+ break;
+ }
+ case NetworkTesterPacket::TEST_START: {
+ packet_sender_.reset(new PacketSender(this, config_file_path_));
+ packet_sender_->StartSending();
+ break;
+ }
+ case NetworkTesterPacket::TEST_DATA: {
+ packet.set_arrival_timestamp(packet_time.timestamp);
+ packet.set_packet_size(len);
+ // log packet
+ break;
+ }
+ case NetworkTesterPacket::TEST_DONE: {
+ remote_test_done_ = true;
+ break;
+ }
+ default: { RTC_NOTREACHED(); }
+ }
+}
+
+} // namespace webrtc