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@ -84,7 +84,10 @@ namespace transport
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m_Server (server), m_Address (addr), m_RemoteTransports (0), m_RemotePeerTestTransports (0),
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m_DestConnID (0), m_SourceConnID (0), m_State (eSSU2SessionStateUnknown),
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m_SendPacketNum (0), m_ReceivePacketNum (0), m_LastDatetimeSentPacketNum (0),
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m_IsDataReceived (false), m_RTT (SSU2_UNKNOWN_RTT), m_WindowSize (SSU2_MIN_WINDOW_SIZE),
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m_IsDataReceived (false), m_RTT (SSU2_UNKNOWN_RTT),
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m_MsgLocalExpirationTimeout (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX),
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m_MsgLocalSemiExpirationTimeout (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX / 2),
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m_WindowSize (SSU2_MIN_WINDOW_SIZE),
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m_RTO (SSU2_INITIAL_RTO), m_RelayTag (0),m_ConnectTimer (server.GetService ()),
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m_TerminationReason (eSSU2TerminationReasonNormalClose),
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m_MaxPayloadSize (SSU2_MIN_PACKET_SIZE - IPV6_HEADER_SIZE - UDP_HEADER_SIZE - 32) // min size
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@ -356,15 +359,16 @@ namespace transport
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{
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if (m_State == eSSU2SessionStateTerminated) return;
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uint64_t mts = i2p::util::GetMonotonicMicroseconds ();
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uint64_t localExpiration = mts + I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT;
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bool isSemiFull = false;
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if (m_SendQueue.size ())
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{
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isSemiFull = m_SendQueue.front ()->IsLocalSemiExpired (mts);
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int64_t queueLag = (int64_t)mts - (int64_t)m_SendQueue.front ()->GetEnqueueTime ();
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isSemiFull = queueLag > m_MsgLocalSemiExpirationTimeout;
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if (isSemiFull)
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{
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LogPrint (eLogWarning, "SSU2: Outgoing messages queue to ",
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GetIdentHashBase64 (), " is semi-full (", m_SendQueue.size (), ")");
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i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ()),
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" is semi-full (size = ", m_SendQueue.size (), ", lag = ", queueLag / 1000, ", rtt = ", (int)m_RTT, ")");
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}
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}
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for (auto it: msgs)
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@ -373,7 +377,7 @@ namespace transport
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it->Drop (); // drop earlier because we can handle it
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else
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{
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it->SetLocalExpiration (localExpiration);
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it->SetEnqueueTime (mts);
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m_SendQueue.push_back (std::move (it));
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}
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}
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@ -397,7 +401,7 @@ namespace transport
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while (!m_SendQueue.empty () && m_SentPackets.size () <= m_WindowSize)
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{
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auto msg = m_SendQueue.front ();
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if (!msg || msg->IsExpired (ts) || msg->IsLocalExpired (mts))
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if (!msg || msg->IsExpired (ts) || msg->GetEnqueueTime() + m_MsgLocalExpirationTimeout < mts)
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{
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// drop null or expired message
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if (msg) msg->Drop ();
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@ -1758,6 +1762,10 @@ namespace transport
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else
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m_RTT = rtt;
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m_RTO = m_RTT*SSU2_kAPPA;
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m_MsgLocalExpirationTimeout = std::max (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MIN,
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std::min (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX,
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(unsigned int)(m_RTT * 1000 * I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_FACTOR)));
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m_MsgLocalSemiExpirationTimeout = m_MsgLocalExpirationTimeout / 2;
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if (m_RTO < SSU2_MIN_RTO) m_RTO = SSU2_MIN_RTO;
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if (m_RTO > SSU2_MAX_RTO) m_RTO = SSU2_MAX_RTO;
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}
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