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More tweaks to TCP logic for GitHub issue #60

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Adam Ierymenko 2014-04-09 12:10:05 -07:00
parent 28a6d328a5
commit a8c12369fd
1 changed files with 6 additions and 4 deletions
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10
node/Peer.cpp
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@ -170,12 +170,12 @@ bool Peer::sendPing(const RuntimeEnvironment *_r,uint64_t now)
bool sent = false; bool sent = false;
SharedPtr<Peer> self(this); SharedPtr<Peer> self(this);
Mutex::Lock _l(_lock); Mutex::Lock _l(_lock);
bool useTcp = _isTcpFailoverTime(_r,now); bool useTcpOut = _isTcpFailoverTime(_r,now);
TRACE("PING %s (useTcp==%d)",_id.address().toString().c_str(),(int)useTcp); TRACE("PING %s (useTcpOut==%d)",_id.address().toString().c_str(),(int)useTcpOut);
for(std::vector<Path>::iterator p(_paths.begin());p!=_paths.end();++p) { for(std::vector<Path>::iterator p(_paths.begin());p!=_paths.end();++p) {
if ((useTcp)||(!p->tcp())) { if ((useTcpOut)||(p->type() != Path::PATH_TYPE_TCP_OUT)) {
p->pinged(now); // we log pings sent even if the send "fails", since what we want to track is when we last tried to ping p->pinged(now); // we log pings sent even if the send "fails", since what we want to track is when we last tried to ping
if (_r->sw->sendHELLO(self,*p)) { if (_r->sw->sendHELLO(self,*p)) {
p->sent(now); p->sent(now);
@ -210,15 +210,17 @@ bool Peer::_isTcpFailoverTime(const RuntimeEnvironment *_r,uint64_t now) const
uint64_t lastUdpPingSent = 0; uint64_t lastUdpPingSent = 0;
uint64_t lastUdpReceive = 0; uint64_t lastUdpReceive = 0;
bool haveUdp = false;
for(std::vector<Path>::const_iterator p(_paths.begin());p!=_paths.end();++p) { for(std::vector<Path>::const_iterator p(_paths.begin());p!=_paths.end();++p) {
if (p->type() == Path::PATH_TYPE_UDP) { if (p->type() == Path::PATH_TYPE_UDP) {
lastUdpPingSent = std::max(lastUdpPingSent,p->lastPing()); lastUdpPingSent = std::max(lastUdpPingSent,p->lastPing());
lastUdpReceive = std::max(lastUdpReceive,p->lastReceived()); lastUdpReceive = std::max(lastUdpReceive,p->lastReceived());
haveUdp = true;
} }
} }
return ( (lastUdpPingSent > lastResync) && ((now - lastUdpReceive) >= ZT_TCP_TUNNEL_FAILOVER_TIMEOUT) ); return ( (!haveUdp) || ( (lastUdpPingSent > lastResync) && ((now - lastUdpReceive) >= ZT_TCP_TUNNEL_FAILOVER_TIMEOUT) ) );
} }
return false; return false;
} }