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0e61fdd27c
Bug: webrtc:12338 Change-Id: Ib97b2c3d64dbd895f261ffa76a2e885bd934a87f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226940 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34554}
85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
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* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_TEST_NETWORK_EMULATION_CROSS_TRAFFIC_H_
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#define API_TEST_NETWORK_EMULATION_CROSS_TRAFFIC_H_
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#include "api/task_queue/task_queue_base.h"
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#include "api/test/network_emulation/network_emulation_interfaces.h"
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#include "api/units/data_rate.h"
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#include "api/units/data_size.h"
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#include "api/units/time_delta.h"
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#include "api/units/timestamp.h"
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namespace webrtc {
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// This API is still in development and can be changed without prior notice.
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// Represents the endpoint for cross traffic that is going through the network.
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// It can be used to emulate unexpected network load.
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class CrossTrafficRoute {
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public:
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virtual ~CrossTrafficRoute() = default;
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// Triggers sending of dummy packets with size `packet_size` bytes.
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virtual void TriggerPacketBurst(size_t num_packets, size_t packet_size) = 0;
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// Sends a packet over the nodes. The content of the packet is unspecified;
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// only the size metter for the emulation purposes.
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virtual void SendPacket(size_t packet_size) = 0;
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// Sends a packet over the nodes and runs `action` when it has been delivered.
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virtual void NetworkDelayedAction(size_t packet_size,
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std::function<void()> action) = 0;
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};
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// Describes a way of generating cross traffic on some route. Used by
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// NetworkEmulationManager to produce cross traffic during some period of time.
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class CrossTrafficGenerator {
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public:
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virtual ~CrossTrafficGenerator() = default;
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// Time between Process calls.
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virtual TimeDelta GetProcessInterval() const = 0;
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// Called periodically by NetworkEmulationManager. Generates traffic on the
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// route.
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virtual void Process(Timestamp at_time) = 0;
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};
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// Config of a cross traffic generator. Generated traffic rises and falls
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// randomly.
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struct RandomWalkConfig {
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int random_seed = 1;
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DataRate peak_rate = DataRate::KilobitsPerSec(100);
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DataSize min_packet_size = DataSize::Bytes(200);
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TimeDelta min_packet_interval = TimeDelta::Millis(1);
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TimeDelta update_interval = TimeDelta::Millis(200);
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double variance = 0.6;
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double bias = -0.1;
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};
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// Config of a cross traffic generator. Generated traffic has form of periodic
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// peaks alternating with periods of silence.
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struct PulsedPeaksConfig {
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DataRate peak_rate = DataRate::KilobitsPerSec(100);
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DataSize min_packet_size = DataSize::Bytes(200);
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TimeDelta min_packet_interval = TimeDelta::Millis(1);
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TimeDelta send_duration = TimeDelta::Millis(100);
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TimeDelta hold_duration = TimeDelta::Millis(2000);
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};
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struct FakeTcpConfig {
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DataSize packet_size = DataSize::Bytes(1200);
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DataSize send_limit = DataSize::PlusInfinity();
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TimeDelta process_interval = TimeDelta::Millis(200);
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TimeDelta packet_timeout = TimeDelta::Seconds(1);
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};
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} // namespace webrtc
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#endif // API_TEST_NETWORK_EMULATION_CROSS_TRAFFIC_H_
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