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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/portability/c_portability.h>
#include <cstdint>
namespace transport {
namespace interface {
class IcnObserver {
public:
virtual ~IcnObserver(){};
virtual void notifyStats(double throughput) = 0;
virtual void notifyDownloadTime(double downloadTime) = 0;
};
class ProductionStatistics {};
class TransportStatistics {
static constexpr double default_alpha = 0.7;
public:
TransportStatistics(double alpha = default_alpha)
: retx_count_(0),
bytes_received_(0),
average_rtt_(0),
avg_window_size_(0),
interest_tx_(0),
alpha_(alpha),
loss_ratio_(0.0),
queuing_delay_(0.0),
interest_FEC_tx_(0),
bytes_FEC_received_(0),
lost_data_(0),
recovered_data_(0),
status_(-1),
// avg_data_rtt_(0),
avg_pending_pkt_(0.0),
received_nacks_(0) {}
TRANSPORT_ALWAYS_INLINE void updateRetxCount(uint64_t retx) {
retx_count_ += retx;
}
TRANSPORT_ALWAYS_INLINE void updateBytesRecv(uint64_t bytes) {
bytes_received_ += bytes;
}
TRANSPORT_ALWAYS_INLINE void updateAverageRtt(uint64_t rtt) {
average_rtt_ = (alpha_ * average_rtt_) + ((1. - alpha_) * double(rtt));
}
TRANSPORT_ALWAYS_INLINE void updateAverageWindowSize(double current_window) {
avg_window_size_ =
(alpha_ * avg_window_size_) + ((1. - alpha_) * current_window);
}
TRANSPORT_ALWAYS_INLINE void updateInterestTx(uint64_t int_tx) {
interest_tx_ += int_tx;
}
TRANSPORT_ALWAYS_INLINE void updateLossRatio(double loss_ratio) {
loss_ratio_ = loss_ratio;
}
TRANSPORT_ALWAYS_INLINE void updateQueuingDelay(double queuing_delay) {
queuing_delay_ = queuing_delay;
}
TRANSPORT_ALWAYS_INLINE void updateInterestFecTx(uint64_t int_tx) {
interest_FEC_tx_ += int_tx;
}
TRANSPORT_ALWAYS_INLINE void updateBytesFecRecv(uint64_t bytes) {
bytes_FEC_received_ += bytes;
}
TRANSPORT_ALWAYS_INLINE void updateLostData(uint64_t pkt) {
lost_data_ += pkt;
}
TRANSPORT_ALWAYS_INLINE void updateRecoveredData(uint64_t bytes) {
recovered_data_ += bytes;
}
TRANSPORT_ALWAYS_INLINE void updateCCState(int status) { status_ = status; }
TRANSPORT_ALWAYS_INLINE void updateAveragePendingPktCount(double pkt) {
avg_pending_pkt_ = (alpha_ * avg_pending_pkt_) + ((1. - alpha_) * pkt);
}
TRANSPORT_ALWAYS_INLINE void updateReceivedNacks(uint32_t nacks) {
received_nacks_ += nacks;
}
TRANSPORT_ALWAYS_INLINE uint64_t getRetxCount() const { return retx_count_; }
TRANSPORT_ALWAYS_INLINE uint64_t getBytesRecv() const {
return bytes_received_;
}
TRANSPORT_ALWAYS_INLINE double getAverageRtt() const { return average_rtt_; }
TRANSPORT_ALWAYS_INLINE double getAverageWindowSize() const {
return avg_window_size_;
}
TRANSPORT_ALWAYS_INLINE uint64_t getInterestTx() const {
return interest_tx_;
}
TRANSPORT_ALWAYS_INLINE double getLossRatio() const { return loss_ratio_; }
TRANSPORT_ALWAYS_INLINE double getQueuingDelay() const {
return queuing_delay_;
}
TRANSPORT_ALWAYS_INLINE uint64_t getInterestFecTxCount() const {
return interest_FEC_tx_;
}
TRANSPORT_ALWAYS_INLINE uint64_t getBytesFecRecv() const {
return bytes_FEC_received_;
}
TRANSPORT_ALWAYS_INLINE uint64_t getLostData() const { return lost_data_; }
TRANSPORT_ALWAYS_INLINE uint64_t getBytesRecoveredData() const {
return recovered_data_;
}
TRANSPORT_ALWAYS_INLINE int getCCStatus() const { return status_; }
TRANSPORT_ALWAYS_INLINE double getAveragePendingPktCount() const {
return avg_pending_pkt_;
}
TRANSPORT_ALWAYS_INLINE uint32_t getReceivedNacks() const {
return received_nacks_;
}
TRANSPORT_ALWAYS_INLINE void setAlpha(double val) { alpha_ = val; }
TRANSPORT_ALWAYS_INLINE void reset() {
retx_count_ = 0;
bytes_received_ = 0;
average_rtt_ = 0;
avg_window_size_ = 0;
interest_tx_ = 0;
loss_ratio_ = 0;
interest_FEC_tx_ = 0;
bytes_FEC_received_ = 0;
lost_data_ = 0;
recovered_data_ = 0;
status_ = 0;
// avg_data_rtt_ = 0;
avg_pending_pkt_ = 0;
received_nacks_ = 0;
}
private:
uint64_t retx_count_;
uint64_t bytes_received_;
double average_rtt_;
double avg_window_size_;
uint64_t interest_tx_;
double alpha_;
double loss_ratio_;
double queuing_delay_;
uint64_t interest_FEC_tx_;
uint64_t bytes_FEC_received_;
uint64_t lost_data_;
uint64_t recovered_data_;
int status_; // transport status (e.g. sync status, congestion etc.)
double avg_pending_pkt_;
uint32_t received_nacks_;
};
} // namespace interface
} // end namespace transport
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