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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <hicn/transport/utils/chrono_typedefs.h>
#include <protocols/byte_stream_reassembly.h>
#include <protocols/congestion_window_protocol.h>
#include <protocols/protocol.h>
#include <protocols/raaqm_data_path.h>
#include <protocols/raaqm_transport_algorithm.h>
#include <protocols/rate_estimation.h>
#include <queue>
#include <vector>
namespace transport {
namespace protocol {
class RaaqmTransportProtocol : public TransportProtocol {
public:
RaaqmTransportProtocol(implementation::ConsumerSocket *icnet_socket);
~RaaqmTransportProtocol();
int start() override;
void resume() override;
void reset() override;
virtual bool verifyKeyPackets() override;
protected:
static constexpr uint32_t buffer_size =
1 << interface::default_values::log_2_default_buffer_size;
static constexpr uint16_t mask = buffer_size - 1;
using PathTable =
std::unordered_map<uint32_t, std::unique_ptr<RaaqmDataPath>>;
private:
void init();
void onContentObject(Interest::Ptr &&i, ContentObject::Ptr &&c) override;
void onContentSegment(Interest::Ptr &&interest,
ContentObject::Ptr &&content_object);
void onPacketDropped(Interest::Ptr &&interest,
ContentObject::Ptr &&content_object) override;
void onReassemblyFailed(std::uint32_t missing_segment) override;
void onTimeout(Interest::Ptr &&i) override;
virtual void scheduleNextInterests() override;
bool sendInterest(std::uint64_t next_suffix);
void sendInterest(Interest::Ptr &&interest);
void onContentReassembled(std::error_code ec) override;
void updateRtt(uint64_t segment);
protected:
std::queue<Interest::Ptr> interest_to_retransmit_;
std::array<std::uint32_t, buffer_size> interest_retransmissions_;
uint32_t interests_in_flight_;
double current_window_size_;
private:
std::unique_ptr<TransportAlgorithm> raaqm_algorithm_;
std::unique_ptr<IcnRateEstimator> rate_estimator_;
// TimePoints for statistic
utils::TimePoint t0_;
// Temporary placeholder for RAAQM algorithm
// parameters
bool raaqm_autotune_;
double beta_wifi_;
double drop_wifi_;
double beta_lte_;
double drop_lte_;
unsigned int wifi_delay_;
unsigned int lte_delay_;
bool schedule_interests_;
};
} // end namespace protocol
} // end namespace transport
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