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some cleanup

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orignal 2024-06-30 08:11:12 -04:00
parent 199d149bed
commit ea9c69cd53
2 changed files with 15 additions and 14 deletions
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25
libi2pd/Streaming.cpp
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@ -75,8 +75,8 @@ namespace stream
m_RemoteLeaseSet (remote), m_ReceiveTimer (m_Service), m_SendTimer (m_Service), m_ResendTimer (m_Service),
m_AckSendTimer (m_Service), m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (port),
m_RTT (INITIAL_RTT), m_WindowSize (INITIAL_WINDOW_SIZE), m_RTO (INITIAL_RTO),
m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), m_PrewRTTSample (INITIAL_RTT), m_PrewRTT (INITIAL_RTT), m_Jitter (0),
m_LastWindowSizeIncreaseTime (0), m_PacingTime (INITIAL_PACING_TIME), m_NumResendAttempts (0), m_MTU (STREAMING_MTU)
m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), m_PrevRTTSample (INITIAL_RTT), m_PrevRTT (INITIAL_RTT), m_Jitter (0),
m_PacingTime (INITIAL_PACING_TIME), m_NumResendAttempts (0), m_MTU (STREAMING_MTU)
{
RAND_bytes ((uint8_t *)&m_RecvStreamID, 4);
m_RemoteIdentity = remote->GetIdentity ();
@ -90,8 +90,8 @@ namespace stream
m_ReceiveTimer (m_Service), m_SendTimer (m_Service), m_ResendTimer (m_Service), m_AckSendTimer (m_Service),
m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (0), m_RTT (INITIAL_RTT),
m_WindowSize (INITIAL_WINDOW_SIZE), m_RTO (INITIAL_RTO), m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()),
m_PrewRTTSample (INITIAL_RTT), m_PrewRTT (INITIAL_RTT), m_Jitter (0),
m_LastWindowSizeIncreaseTime (0), m_PacingTime (INITIAL_PACING_TIME), m_NumResendAttempts (0), m_MTU (STREAMING_MTU)
m_PrevRTTSample (INITIAL_RTT), m_PrevRTT (INITIAL_RTT), m_Jitter (0),
m_PacingTime (INITIAL_PACING_TIME), m_NumResendAttempts (0), m_MTU (STREAMING_MTU)
{
RAND_bytes ((uint8_t *)&m_RecvStreamID, 4);
}
@ -108,6 +108,7 @@ namespace stream
m_AckSendTimer.cancel ();
m_ReceiveTimer.cancel ();
m_ResendTimer.cancel ();
m_SendTimer.cancel ();
//CleanUp (); /* Need to recheck - broke working on windows */
if (deleteFromDestination)
m_LocalDestination.DeleteStream (shared_from_this ());
@ -469,23 +470,23 @@ namespace stream
if (firstRttSample)
{
m_RTT = rttSample;
m_PrewRTTSample = rttSample;
m_PrevRTTSample = rttSample;
}
else
m_RTT = RTT_EWMA_ALPHA * rttSample + (1.0 - RTT_EWMA_ALPHA) * m_RTT;
// calculate jitter
int jitter = 0;
if (rttSample > m_PrewRTTSample)
jitter = rttSample - m_PrewRTTSample;
else if (rttSample < m_PrewRTTSample)
jitter = m_PrewRTTSample - rttSample;
if (rttSample > m_PrevRTTSample)
jitter = rttSample - m_PrevRTTSample;
else if (rttSample < m_PrevRTTSample)
jitter = m_PrevRTTSample - rttSample;
else
jitter = std::round (rttSample / 10); // 10%
m_Jitter = std::round (RTT_EWMA_ALPHA * m_Jitter + (1.0 - RTT_EWMA_ALPHA) * jitter);
m_PrewRTTSample = rttSample;
m_PrevRTTSample = rttSample;
//
// delay-based CC
if ((m_RTT > m_PrewRTT) && !m_IsWinDropped) // Drop window if RTT grows too fast, late detection
if ((m_RTT > m_PrevRTT) && !m_IsWinDropped) // Drop window if RTT grows too fast, late detection
{
m_WindowSize >>= 1; // /2
m_IsWinDropped = true; // don't drop window twice
@ -493,7 +494,7 @@ namespace stream
if (m_WindowSize < MIN_WINDOW_SIZE) m_WindowSize = MIN_WINDOW_SIZE;
int pacTime = std::round (m_RTT*1000/m_WindowSize);
m_PacingTime = std::max (MIN_PACING_TIME, pacTime);
m_PrewRTT = m_RTT * 1.1 + m_Jitter;
m_PrevRTT = m_RTT * 1.1 + m_Jitter;
//
bool wasInitial = m_RTO == INITIAL_RTO;
m_RTO = std::max (MIN_RTO, (int)(m_RTT * 1.3 + m_Jitter)); // TODO: implement it better

4
libi2pd/Streaming.h
View File

@ -269,8 +269,8 @@ namespace stream
SendBufferQueue m_SendBuffer;
double m_RTT;
int m_WindowSize, m_RTO, m_AckDelay, m_PrewRTTSample, m_PrewRTT, m_Jitter;
uint64_t m_LastWindowSizeIncreaseTime, m_PacingTime;
int m_WindowSize, m_RTO, m_AckDelay, m_PrevRTTSample, m_PrevRTT, m_Jitter;
uint64_t m_PacingTime;
int m_NumResendAttempts;
size_t m_MTU;
};