d3666b2d98
This CL contains cross traffic and is a second part of landing CL https://webrtc-review.googlesource.com/c/src/+/116663 Bug: webrtc:10138 Change-Id: Ibe0614f80127e93ee8a92b85685cacbf079dee21 Reviewed-on: https://webrtc-review.googlesource.com/c/120925 Commit-Queue: Artem Titov <titovartem@webrtc.org> Reviewed-by: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26649}
111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2019 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 "test/scenario/network/cross_traffic.h"
|
|
|
|
#include <math.h>
|
|
#include <utility>
|
|
|
|
#include "absl/memory/memory.h"
|
|
#include "absl/types/optional.h"
|
|
#include "rtc_base/logging.h"
|
|
#include "rtc_base/numerics/safe_minmax.h"
|
|
|
|
namespace webrtc {
|
|
namespace test {
|
|
|
|
RandomWalkCrossTraffic::RandomWalkCrossTraffic(RandomWalkConfig config,
|
|
TrafficRoute* traffic_route)
|
|
: config_(config),
|
|
traffic_route_(traffic_route),
|
|
random_(config_.random_seed) {}
|
|
RandomWalkCrossTraffic::~RandomWalkCrossTraffic() = default;
|
|
|
|
void RandomWalkCrossTraffic::Process(Timestamp at_time) {
|
|
if (last_process_time_.IsMinusInfinity()) {
|
|
last_process_time_ = at_time;
|
|
}
|
|
TimeDelta delta = at_time - last_process_time_;
|
|
last_process_time_ = at_time;
|
|
|
|
if (at_time - last_update_time_ >= config_.update_interval) {
|
|
intensity_ += random_.Gaussian(config_.bias, config_.variance) *
|
|
sqrt((at_time - last_update_time_).seconds<double>());
|
|
intensity_ = rtc::SafeClamp(intensity_, 0.0, 1.0);
|
|
last_update_time_ = at_time;
|
|
}
|
|
pending_size_ += TrafficRate() * delta;
|
|
|
|
if (pending_size_ >= config_.min_packet_size &&
|
|
at_time >= last_send_time_ + config_.min_packet_interval) {
|
|
traffic_route_->SendPacket(pending_size_.bytes());
|
|
pending_size_ = DataSize::Zero();
|
|
last_send_time_ = at_time;
|
|
}
|
|
}
|
|
|
|
DataRate RandomWalkCrossTraffic::TrafficRate() const {
|
|
return config_.peak_rate * intensity_;
|
|
}
|
|
|
|
ColumnPrinter RandomWalkCrossTraffic::StatsPrinter() {
|
|
return ColumnPrinter::Lambda(
|
|
"random_walk_cross_traffic_rate",
|
|
[this](rtc::SimpleStringBuilder& sb) {
|
|
sb.AppendFormat("%.0lf", TrafficRate().bps() / 8.0);
|
|
},
|
|
32);
|
|
}
|
|
|
|
PulsedPeaksCrossTraffic::PulsedPeaksCrossTraffic(PulsedPeaksConfig config,
|
|
TrafficRoute* traffic_route)
|
|
: config_(config), traffic_route_(traffic_route) {}
|
|
PulsedPeaksCrossTraffic::~PulsedPeaksCrossTraffic() = default;
|
|
|
|
void PulsedPeaksCrossTraffic::Process(Timestamp at_time) {
|
|
TimeDelta time_since_toggle = at_time - last_update_time_;
|
|
if (time_since_toggle.IsInfinite() ||
|
|
(sending_ && time_since_toggle >= config_.send_duration)) {
|
|
sending_ = false;
|
|
last_update_time_ = at_time;
|
|
} else if (!sending_ && time_since_toggle >= config_.hold_duration) {
|
|
sending_ = true;
|
|
last_update_time_ = at_time;
|
|
// Start sending period.
|
|
last_send_time_ = at_time;
|
|
}
|
|
|
|
if (sending_) {
|
|
DataSize pending_size = config_.peak_rate * (at_time - last_send_time_);
|
|
|
|
if (pending_size >= config_.min_packet_size &&
|
|
at_time >= last_send_time_ + config_.min_packet_interval) {
|
|
traffic_route_->SendPacket(pending_size.bytes());
|
|
last_send_time_ = at_time;
|
|
}
|
|
}
|
|
}
|
|
|
|
DataRate PulsedPeaksCrossTraffic::TrafficRate() const {
|
|
return sending_ ? config_.peak_rate : DataRate::Zero();
|
|
}
|
|
|
|
ColumnPrinter PulsedPeaksCrossTraffic::StatsPrinter() {
|
|
return ColumnPrinter::Lambda(
|
|
"pulsed_peaks_cross_traffic_rate",
|
|
[this](rtc::SimpleStringBuilder& sb) {
|
|
sb.AppendFormat("%.0lf", TrafficRate().bps() / 8.0);
|
|
},
|
|
32);
|
|
}
|
|
|
|
} // namespace test
|
|
} // namespace webrtc
|