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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/packet_sender.h"
#include <algorithm>
#include <string>
#include <utility>
#include "rtc_base/timeutils.h"
#include "rtc_tools/network_tester/config_reader.h"
#include "rtc_tools/network_tester/test_controller.h"
namespace webrtc {
namespace {
class SendPacketTask : public rtc::QueuedTask {
public:
explicit SendPacketTask(PacketSender* packet_sender)
: target_time_ms_(rtc::TimeMillis()), packet_sender_(packet_sender) {}
private:
bool Run() override {
if (packet_sender_->IsSending()) {
packet_sender_->SendPacket();
target_time_ms_ += packet_sender_->GetSendIntervalMs();
int64_t delay_ms = std::max(static_cast<int64_t>(0),
target_time_ms_ - rtc::TimeMillis());
rtc::TaskQueue::Current()->PostDelayedTask(
std::unique_ptr<QueuedTask>(this), delay_ms);
return false;
} else {
return true;
}
}
int64_t target_time_ms_;
PacketSender* const packet_sender_;
};
class UpdateTestSettingTask : public rtc::QueuedTask {
public:
UpdateTestSettingTask(PacketSender* packet_sender,
std::unique_ptr<ConfigReader> config_reader)
: packet_sender_(packet_sender),
config_reader_(std::move(config_reader)) {}
private:
bool Run() override {
auto config = config_reader_->GetNextConfig();
if (config) {
packet_sender_->UpdateTestSetting((*config).packet_size,
(*config).packet_send_interval_ms);
rtc::TaskQueue::Current()->PostDelayedTask(
std::unique_ptr<QueuedTask>(this), (*config).execution_time_ms);
return false;
} else {
packet_sender_->StopSending();
return true;
}
}
PacketSender* const packet_sender_;
const std::unique_ptr<ConfigReader> config_reader_;
};
} // namespace
PacketSender::PacketSender(TestController* test_controller,
const std::string& config_file_path)
: packet_size_(0),
send_interval_ms_(0),
sequence_number_(0),
sending_(false),
config_file_path_(config_file_path),
test_controller_(test_controller),
worker_queue_("Packet Sender", rtc::TaskQueue::Priority::HIGH) {}
PacketSender::~PacketSender() = default;
void PacketSender::StartSending() {
worker_queue_checker_.Detach();
worker_queue_.PostTask([this]() {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
sending_ = true;
});
worker_queue_.PostTask(
std::unique_ptr<rtc::QueuedTask>(new UpdateTestSettingTask(
this,
std::unique_ptr<ConfigReader>(new ConfigReader(config_file_path_)))));
worker_queue_.PostTask(
std::unique_ptr<rtc::QueuedTask>(new SendPacketTask(this)));
}
void PacketSender::StopSending() {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
sending_ = false;
test_controller_->OnTestDone();
}
bool PacketSender::IsSending() const {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
return sending_;
}
void PacketSender::SendPacket() {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
NetworkTesterPacket packet;
packet.set_type(NetworkTesterPacket::TEST_DATA);
packet.set_sequence_number(sequence_number_++);
packet.set_send_timestamp(rtc::TimeMicros());
test_controller_->SendData(packet, packet_size_);
}
int64_t PacketSender::GetSendIntervalMs() const {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
return send_interval_ms_;
}
void PacketSender::UpdateTestSetting(size_t packet_size,
int64_t send_interval_ms) {
RTC_DCHECK_CALLED_SEQUENTIALLY(&worker_queue_checker_);
send_interval_ms_ = send_interval_ms;
packet_size_ = packet_size;
}
} // namespace webrtc
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