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/*
* Copyright 2018 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.
*/
#ifndef TEST_SCENARIO_NETWORK_NODE_H_
#define TEST_SCENARIO_NETWORK_NODE_H_
#include <deque>
#include <map>
#include <memory>
#include <utility>
#include <vector>
#include "api/call/transport.h"
#include "api/units/timestamp.h"
#include "call/call.h"
#include "call/simulated_network.h"
#include "rtc_base/constructor_magic.h"
#include "rtc_base/copy_on_write_buffer.h"
#include "rtc_base/task_queue.h"
#include "test/scenario/column_printer.h"
#include "test/scenario/network/network_emulation.h"
#include "test/scenario/scenario_config.h"
namespace webrtc {
namespace test {
class NullReceiver : public EmulatedNetworkReceiverInterface {
public:
void OnPacketReceived(EmulatedIpPacket packet) override;
};
class ActionReceiver : public EmulatedNetworkReceiverInterface {
public:
explicit ActionReceiver(std::function<void()> action);
virtual ~ActionReceiver() = default;
void OnPacketReceived(EmulatedIpPacket packet) override;
private:
std::function<void()> action_;
};
// SimulationNode is a EmulatedNetworkNode that expose an interface for changing
// run time behavior of the underlying simulation.
class SimulationNode : public EmulatedNetworkNode {
public:
void UpdateConfig(std::function<void(NetworkNodeConfig*)> modifier);
void PauseTransmissionUntil(Timestamp until);
ColumnPrinter ConfigPrinter() const;
private:
friend class Scenario;
SimulationNode(Clock* clock,
rtc::TaskQueue* task_queue,
NetworkNodeConfig config,
std::unique_ptr<NetworkBehaviorInterface> behavior,
SimulatedNetwork* simulation);
static std::unique_ptr<SimulationNode> Create(Clock* clock,
rtc::TaskQueue* task_queue,
NetworkNodeConfig config);
SimulatedNetwork* const simulated_network_;
NetworkNodeConfig config_;
};
class NetworkNodeTransport : public Transport {
public:
NetworkNodeTransport(Clock* sender_clock, Call* sender_call);
~NetworkNodeTransport() override;
bool SendRtp(const uint8_t* packet,
size_t length,
const PacketOptions& options) override;
bool SendRtcp(const uint8_t* packet, size_t length) override;
void Connect(EmulatedNetworkNode* send_node,
rtc::IPAddress receiver_ip,
DataSize packet_overhead);
void Disconnect();
DataSize packet_overhead() {
rtc::CritScope crit(&crit_sect_);
return packet_overhead_;
}
private:
rtc::CriticalSection crit_sect_;
Clock* const sender_clock_;
Call* const sender_call_;
// Store local address here for consistency with receiver address.
const rtc::SocketAddress local_address_;
EmulatedNetworkNode* send_net_ RTC_GUARDED_BY(crit_sect_) = nullptr;
rtc::SocketAddress receiver_address_ RTC_GUARDED_BY(crit_sect_);
DataSize packet_overhead_ RTC_GUARDED_BY(crit_sect_) = DataSize::Zero();
rtc::NetworkRoute current_network_route_ RTC_GUARDED_BY(crit_sect_);
};
// CrossTrafficSource is created by a Scenario and generates cross traffic. It
// provides methods to access and print internal state.
class CrossTrafficSource {
public:
DataRate TrafficRate() const;
ColumnPrinter StatsPrinter();
~CrossTrafficSource();
private:
friend class Scenario;
CrossTrafficSource(EmulatedNetworkReceiverInterface* target,
rtc::IPAddress receiver_ip,
CrossTrafficConfig config);
void Process(Timestamp at_time, TimeDelta delta);
EmulatedNetworkReceiverInterface* const target_;
const rtc::SocketAddress receiver_address_;
CrossTrafficConfig config_;
webrtc::Random random_;
TimeDelta time_since_update_ = TimeDelta::Zero();
double intensity_ = 0;
DataSize pending_size_ = DataSize::Zero();
};
} // namespace test
} // namespace webrtc
#endif // TEST_SCENARIO_NETWORK_NODE_H_