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select newest introducers to publish

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orignal 2024-06-08 16:08:32 -04:00
parent 6a590bf970
commit 4178ac8eac
2 changed files with 20 additions and 17 deletions
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32
libi2pd/SSU2.cpp
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@ -1056,30 +1056,32 @@ namespace transport
return ret;
}
std::list<std::shared_ptr<SSU2Session> > SSU2Server::FindIntroducers (int maxNumIntroducers,
bool v4, const std::unordered_set<i2p::data::IdentHash>& excluded)
std::vector<std::shared_ptr<SSU2Session> > SSU2Server::FindIntroducers (int maxNumIntroducers,
bool v4, const std::unordered_set<i2p::data::IdentHash>& excluded) const
{
std::list<std::shared_ptr<SSU2Session> > ret;
std::vector<std::shared_ptr<SSU2Session> > ret;
if (maxNumIntroducers <= 0) return ret;
auto newer = [](const std::shared_ptr<SSU2Session>& s1, const std::shared_ptr<SSU2Session>& s2) -> bool
{
auto t1 = s1->GetCreationTime (), t2 = s2->GetCreationTime ();
return (t1 != t2) ? (t1 > t2) : (s1->GetConnID () > s2->GetConnID ());
};
std::set<std::shared_ptr<SSU2Session>, decltype (newer)> introducers(newer);
for (const auto& s : m_Sessions)
{
if (s.second->IsEstablished () && (s.second->GetRelayTag () && s.second->IsOutgoing ()) &&
!excluded.count (s.second->GetRemoteIdentity ()->GetIdentHash ()) &&
((v4 && (s.second->GetRemoteTransports () & i2p::data::RouterInfo::eSSU2V4)) ||
(!v4 && (s.second->GetRemoteTransports () & i2p::data::RouterInfo::eSSU2V6))))
ret.push_back (s.second);
introducers.insert (s.second);
}
if ((int)ret.size () > maxNumIntroducers)
int i = 0;
for (auto it: introducers)
{
// shink ret randomly
int sz = ret.size () - maxNumIntroducers;
for (int i = 0; i < sz; i++)
{
auto ind = m_Rng () % ret.size ();
auto it = ret.begin ();
std::advance (it, ind);
ret.erase (it);
}
}
ret.push_back (it);
i++;
if (i >= maxNumIntroducers) break;
}
return ret;
}