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change path if too many unacked packets

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orignal
2025-10-07 19:00:51 -04:00
parent cf48c205e1
commit da399054c0
3 changed files with 13 additions and 3 deletions
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2
libi2pd/Datagram.h
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@@ -82,6 +82,8 @@ namespace datagram
DatagramVersion GetVersion () const { return m_Version; }
void SetVersion (DatagramVersion version) { m_Version = version; }
void DropSharedRoutingPath () { if (m_RoutingSession) m_RoutingSession->SetSharedRoutingPath (nullptr); }
struct Info
{

10
libi2pd_client/UDPTunnel.cpp
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@@ -378,11 +378,17 @@ namespace client
LogPrint (eLogDebug, "UDP Client: Send ", transferred, " to ", m_RemoteAddr->identHash.ToBase32 (), ":", RemotePort);
auto session = GetDatagramSession ();
uint64_t repliableDatagramInterval = I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL;
if (m_RTT && m_RTT < I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL*10) repliableDatagramInterval = m_RTT/10;
if (ts > m_LastSession->second + repliableDatagramInterval )
if (m_RTT >= 10) repliableDatagramInterval = m_RTT/10; // 1 ms min
if (ts > m_LastSession->second + repliableDatagramInterval)
{
if (m_DatagramVersion == i2p::datagram::eDatagramV3)
{
if (!m_UnackedDatagrams.empty () && (ts > m_UnackedDatagrams.front ().second + I2P_UDP_MAX_UNACKED_DATAGRAM_TIME ||
m_NextSendPacketNum > m_UnackedDatagrams.front ().first + I2P_UDP_MAX_NUM_UNACKED_DATAGRAMS))
{
m_UnackedDatagrams.clear ();
session->DropSharedRoutingPath ();
}
m_UnackedDatagrams.push_back ({ m_NextSendPacketNum, ts });
i2p::util::Mapping options;
options.Put (UDP_SESSION_SEQN, m_NextSendPacketNum);

4
libi2pd_client/UDPTunnel.h
View File

@@ -30,7 +30,9 @@ namespace client
/** 2 minute timeout for udp sessions */
const uint64_t I2P_UDP_SESSION_TIMEOUT = 1000 * 60 * 2;
const uint64_t I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL = 100; // in milliseconds
const uint64_t I2P_UDP_MAX_UNACKED_DATAGRAM_TIME = 8000; // in milliseconds
const size_t I2P_UDP_MAX_NUM_UNACKED_DATAGRAMS = 500;
/** max size for i2p udp */
const size_t I2P_UDP_MAX_MTU = 64*1024;