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/*
* 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 "rtc_tools/network_tester/test_controller.h"
namespace webrtc {
TestController::TestController(int min_port,
int max_port,
const std::string& config_file_path,
const std::string& log_file_path)
: socket_factory_(rtc::ThreadManager::Instance()->WrapCurrentThread()),
config_file_path_(config_file_path),
packet_logger_(log_file_path),
local_test_done_(false),
remote_test_done_(false) {
RTC_DCHECK_RUN_ON(&test_controller_thread_checker_);
packet_sender_checker_.Detach();
send_data_.fill(42);
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, absl::nullopt);
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,
absl::optional<size_t> data_size) {
// Can be call from packet_sender or from test_controller thread.
size_t packet_size = packet.ByteSizeLong();
send_data_[0] = packet_size;
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,
rtc::PacketOptions(), 0);
}
void TestController::OnTestDone() {
RTC_DCHECK_CALLED_SEQUENTIALLY(&packet_sender_checker_);
NetworkTesterPacket packet;
packet.set_type(NetworkTesterPacket::TEST_DONE);
SendData(packet, absl::nullopt);
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, absl::nullopt);
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();
rtc::CritScope scoped_lock(&local_test_done_lock_);
local_test_done_ = false;
remote_test_done_ = false;
break;
}
case NetworkTesterPacket::TEST_DATA: {
packet.set_arrival_timestamp(packet_time.timestamp);
packet.set_packet_size(len);
packet_logger_.LogPacket(packet);
break;
}
case NetworkTesterPacket::TEST_DONE: {
remote_test_done_ = true;
break;
}
default: { RTC_NOTREACHED(); }
}
}
} // namespace webrtc
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