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fix datagram bugs

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This commit is contained in:
Jeff Becker 2017-04-09 08:52:42 -04:00
parent 4f1dfe2ef7
commit d91c7e5e79
4 changed files with 20 additions and 6 deletions
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19
Datagram.cpp
View File

@ -255,9 +255,11 @@ namespace datagram
}
if(m_CurrentRemoteLease && m_CurrentRemoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) {
// bad lease, switch to next one
if(m_RemoteLeaseSet && m_RemoteLeaseSet->IsExpired())
m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent);
if(m_RemoteLeaseSet) {
auto ls = m_RemoteLeaseSet->GetNonExpiredLeasesExcluding([&](const i2p::data::Lease& l) -> bool {
return l.tunnelGateway == m_CurrentRemoteLease->tunnelGateway;
return l.tunnelID == m_CurrentRemoteLease->tunnelID;
});
auto sz = ls.size();
if (sz) {
@ -278,7 +280,7 @@ namespace datagram
m_CurrentOutboundTunnel = m_LocalDestination->GetTunnelPool()->GetNextOutboundTunnel(m_CurrentOutboundTunnel);
}
// switch lease if bad
if(m_CurrentRemoteLease == nullptr || m_CurrentRemoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) {
if(m_CurrentRemoteLease && m_CurrentRemoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) {
if(!m_RemoteLeaseSet) {
m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent);
}
@ -299,6 +301,17 @@ namespace datagram
LogPrint(eLogWarning, "DatagramSession: no remote lease set found for ", m_RemoteIdent.ToBase32());
return nullptr;
}
} else if (!m_CurrentRemoteLease) {
if(!m_RemoteLeaseSet) m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent);
if (m_RemoteLeaseSet)
{
auto ls = m_RemoteLeaseSet->GetNonExpiredLeases();
auto sz = ls.size();
if (sz) {
auto idx = rand() % sz;
m_CurrentRemoteLease = ls[idx];
}
}
}
path->outboundTunnel = m_CurrentOutboundTunnel;
path->remoteLease = m_CurrentRemoteLease;
@ -346,7 +359,7 @@ namespace datagram
void DatagramSession::ScheduleFlushSendQueue()
{
boost::posix_time::milliseconds dlt(100);
boost::posix_time::milliseconds dlt(10);
m_SendQueueTimer.expires_from_now(dlt);
auto self = shared_from_this();
m_SendQueueTimer.async_wait([self](const boost::system::error_code & ec) { if(ec) return; self->FlushSendQueue(); });

2
Datagram.h
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@ -26,7 +26,7 @@ namespace datagram
// milliseconds interval a routing path is used before switching
const uint64_t DATAGRAM_SESSION_PATH_SWITCH_INTERVAL = 20 * 60 * 1000;
// milliseconds before lease expire should we try switching leases
const uint64_t DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW = 10 * 1000;
const uint64_t DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW = 30 * 1000;
// milliseconds fudge factor for leases handover
const uint64_t DATAGRAM_SESSION_LEASE_HANDOVER_FUDGE = 1000;
// milliseconds minimum time between path switches

3
LeaseSet.h
View File

@ -30,7 +30,8 @@ namespace data
bool ExpiresWithin( const uint64_t t, const uint64_t fudge = 1000 ) const {
auto expire = i2p::util::GetMillisecondsSinceEpoch ();
if(fudge) expire += rand() % fudge;
return endDate - expire >= t;
if (endDate < expire) return true;
return (endDate - expire) < t;
}
};

2
MatchedDestination.cpp
View File

@ -52,7 +52,7 @@ namespace client
m_ResolveTimer = std::make_shared<boost::asio::deadline_timer>(GetService());
GetTunnelPool()->SetCustomPeerSelector(this);
ResolveCurrentLeaseSet();
return true;
return true;
}
else
return false;