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/*
* Copyright (c) 2024 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_NETWORK_SCHEDULABLE_NETWORK_BEHAVIOR_H_
#define TEST_NETWORK_SCHEDULABLE_NETWORK_BEHAVIOR_H_
#include <cstdint>
#include "absl/functional/any_invocable.h"
#include "api/sequence_checker.h"
#include "api/test/network_emulation/network_config_schedule.pb.h"
#include "api/test/simulated_network.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "rtc_base/task_utils/repeating_task.h"
#include "rtc_base/thread_annotations.h"
#include "system_wrappers/include/clock.h"
#include "test/network/simulated_network.h"
namespace webrtc {
// Network behaviour implementation where parameters change over time as
// specified with a schedule proto.
class SchedulableNetworkBehavior : public SimulatedNetwork {
public:
SchedulableNetworkBehavior(
network_behaviour::NetworkConfigSchedule schedule,
uint64_t random_seed,
Clock& clock,
absl::AnyInvocable<bool(webrtc::Timestamp)> start_condition =
[](webrtc::Timestamp) { return true; });
bool EnqueuePacket(PacketInFlightInfo packet_info) override;
private:
TimeDelta UpdateConfigAndReschedule();
SequenceChecker sequence_checker_;
const network_behaviour::NetworkConfigSchedule schedule_;
absl::AnyInvocable<bool(webrtc::Timestamp)> start_condition_
RTC_GUARDED_BY(&sequence_checker_);
// Send time of the first packet enqueued after `start_condition_` return
// true.
Timestamp first_send_time_ RTC_GUARDED_BY(&sequence_checker_) =
Timestamp::MinusInfinity();
Clock& clock_ RTC_GUARDED_BY(&sequence_checker_);
BuiltInNetworkBehaviorConfig config_ RTC_GUARDED_BY(&sequence_checker_);
// Index of the next schedule item to apply.
int next_schedule_index_ RTC_GUARDED_BY(&sequence_checker_) = 0;
// Total time from the first sent packet, until the last time the schedule
// repeat.
TimeDelta wrap_time_delta_ RTC_GUARDED_BY(&sequence_checker_) =
TimeDelta::Zero();
RepeatingTaskHandle schedule_task_ RTC_GUARDED_BY(&sequence_checker_);
};
} // namespace webrtc
#endif // TEST_NETWORK_SCHEDULABLE_NETWORK_BEHAVIOR_H_
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