void CRoutingZone::OnSmallTimer()
{
if (!IsLeaf()) {
return;
}
CContact *c = NULL;
time_t now = time(NULL);
ContactList entries;
// Remove dead entries
m_bin->GetEntries(&entries);
for (ContactList::iterator it = entries.begin(); it != entries.end(); ++it) {
c = *it;
if (c->GetType() == 4) {
if ((c->GetExpireTime() > 0) && (c->GetExpireTime() <= now)) {
if (!c->InUse()) {
m_bin->RemoveContact(c);
delete c;
}
continue;
}
}
if(c->GetExpireTime() == 0) {
c->SetExpireTime(now);
}
}
c = m_bin->GetOldest();
if (c != NULL) {
if (c->GetExpireTime() >= now || c->GetType() == 4) {
m_bin->PushToBottom(c);
c = NULL;
}
}
if (c != NULL) {
c->CheckingType();
if (c->GetVersion() >= 6) {
DebugSend(L"Kad2HelloReq", c->GetIPAddress(), c->GetUDPPort());
CUInt128 clientID = c->GetClientID();
CKademlia::GetUDPListener()->SendMyDetails(KADEMLIA2_HELLO_REQ, c->GetIPAddress(), c->GetUDPPort(), c->GetVersion(), c->GetUDPKey(), &clientID, false);
if (c->GetVersion() >= 8) {
// FIXME:
// This is a bit of a work around for statistic values. Normally we only count values from incoming HELLO_REQs for
// the firewalled statistics in order to get numbers from nodes which have us on their routing table,
// however if we send a HELLO due to the timer, the remote node won't send a HELLO_REQ itself anymore (but
// a HELLO_RES which we don't count), so count those statistics here. This isn't really accurate, but it should
// do fair enough. Maybe improve it later for example by putting a flag into the contact and make the answer count
CKademlia::GetPrefs()->StatsIncUDPFirewalledNodes(false);
CKademlia::GetPrefs()->StatsIncTCPFirewalledNodes(false);
}
} else if (c->GetVersion() >= 2) {
DebugSend(L"Kad2HelloReq", c->GetIPAddress(), c->GetUDPPort());
CKademlia::GetUDPListener()->SendMyDetails(KADEMLIA2_HELLO_REQ, c->GetIPAddress(), c->GetUDPPort(), c->GetVersion(), 0, NULL, false);
ASSERT(c->GetUDPKey() == CKadUDPKey(0));
} else {
ASSERT(0);
}
}
}
