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don't pick too active peer

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orignal 2023-10-15 08:31:55 -04:00
parent 606e35eec1
commit 0cc91dd2d2
6 changed files with 80 additions and 37 deletions
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55
libi2pd/TransportSession.h
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@ -71,15 +71,17 @@ namespace transport
const int64_t TRANSPORT_SESSION_SLOWNESS_THRESHOLD = 500; // in milliseconds
const int64_t TRANSPORT_SESSION_MAX_HANDSHAKE_INTERVAL = 10000; // in milliseconds
const uint64_t TRANSPORT_SESSION_BANDWIDTH_UPDATE_MIN_INTERVAL = 5; // in seconds
class TransportSession
{
public:
TransportSession (std::shared_ptr<const i2p::data::RouterInfo> router, int terminationTimeout):
m_NumSentBytes (0), m_NumReceivedBytes (0), m_SendQueueSize (0),
m_IsOutgoing (router), m_TerminationTimeout (terminationTimeout),
m_LastActivityTimestamp (i2p::util::GetSecondsSinceEpoch ()),
m_HandshakeInterval (0)
m_IsOutgoing (router), m_TerminationTimeout (terminationTimeout), m_HandshakeInterval (0),
m_SendQueueSize (0), m_NumSentBytes (0), m_NumReceivedBytes (0),
m_LastBandWidthUpdateNumSentBytes (0), m_LastBandWidthUpdateNumReceivedBytes (0),
m_LastActivityTimestamp (i2p::util::GetSecondsSinceEpoch ()),
m_LastBandwidthUpdateTimestamp (m_LastActivityTimestamp), m_InBandwidth (0), m_OutBandwidth (0)
{
if (router)
m_RemoteIdentity = router->GetRouterIdentity ();
@ -103,11 +105,29 @@ namespace transport
}
size_t GetNumSentBytes () const { return m_NumSentBytes; };
void UpdateNumSentBytes (size_t len)
{
m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch ();
m_NumSentBytes += len;
UpdateBandwidth ();
}
size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; };
void UpdateNumReceivedBytes (size_t len)
{
m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch ();
m_NumReceivedBytes += len;
UpdateBandwidth ();
}
size_t GetSendQueueSize () const { return m_SendQueueSize; };
void SetSendQueueSize (size_t s) { m_SendQueueSize = s; };
bool IsOutgoing () const { return m_IsOutgoing; };
bool IsSlow () const { return m_HandshakeInterval > TRANSPORT_SESSION_SLOWNESS_THRESHOLD &&
m_HandshakeInterval < TRANSPORT_SESSION_MAX_HANDSHAKE_INTERVAL; };
bool IsBandwidthExceeded (bool isHighBandwidth) const
{
auto limit = isHighBandwidth ? i2p::data::HIGH_BANDWIDTH_LIMIT*1024 : i2p::data::LOW_BANDWIDTH_LIMIT*1024; // convert to bytes
return std::max (m_InBandwidth, m_OutBandwidth) > limit;
}
int GetTerminationTimeout () const { return m_TerminationTimeout; };
void SetTerminationTimeout (int terminationTimeout) { m_TerminationTimeout = terminationTimeout; };
@ -120,21 +140,44 @@ namespace transport
uint32_t GetCreationTime () const { return m_CreationTime; };
void SetCreationTime (uint32_t ts) { m_CreationTime = ts; }; // for introducers
uint64_t GetLastActivityTimestamp () const { return m_LastActivityTimestamp; };
void SetLastActivityTimestamp (uint64_t ts) { m_LastActivityTimestamp = ts; };
virtual uint32_t GetRelayTag () const { return 0; };
virtual void SendLocalRouterInfo (bool update = false) { SendI2NPMessages ({ CreateDatabaseStoreMsg () }); };
virtual void SendI2NPMessages (const std::vector<std::shared_ptr<I2NPMessage> >& msgs) = 0;
virtual bool IsEstablished () const = 0;
private:
void UpdateBandwidth ()
{
uint64_t interval = m_LastActivityTimestamp - m_LastBandwidthUpdateTimestamp;
if (interval > TRANSPORT_SESSION_BANDWIDTH_UPDATE_MIN_INTERVAL)
{
m_OutBandwidth = (m_NumSentBytes - m_LastBandWidthUpdateNumSentBytes)/interval;
m_LastBandWidthUpdateNumSentBytes = m_NumSentBytes;
m_InBandwidth = (m_NumReceivedBytes - m_LastBandWidthUpdateNumReceivedBytes)/interval;
m_LastBandWidthUpdateNumReceivedBytes = m_NumReceivedBytes;
m_LastBandwidthUpdateTimestamp = m_LastActivityTimestamp;
}
}
protected:
std::shared_ptr<const i2p::data::IdentityEx> m_RemoteIdentity;
mutable std::mutex m_RemoteIdentityMutex;
size_t m_NumSentBytes, m_NumReceivedBytes, m_SendQueueSize;
bool m_IsOutgoing;
int m_TerminationTimeout;
uint64_t m_LastActivityTimestamp;
uint32_t m_CreationTime; // seconds since epoch
int64_t m_HandshakeInterval; // in milliseconds between SessionRequest->SessionCreated or SessionCreated->SessionConfirmed
private:
size_t m_SendQueueSize, m_NumSentBytes, m_NumReceivedBytes,
m_LastBandWidthUpdateNumSentBytes, m_LastBandWidthUpdateNumReceivedBytes;
uint64_t m_LastActivityTimestamp, m_LastBandwidthUpdateTimestamp;
uint32_t m_InBandwidth, m_OutBandwidth;
};
// SOCKS5 proxy