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Remove broken timeout behaviour 

Code that relies on `resend_count` was added in 7ea4a03 and 247a1eb, but never worked.
This was fixed in #11607 which caused the problem to surface.
Hence undo the first commit entirely and change the logic of the second.
This commit is contained in:
sfan5 2021-10-10 21:10:52 +02:00
parent 6ea558f8ac
commit fe5cb2cdfb
1 changed files with 4 additions and 23 deletions
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27
src/network/connectionthreads.cpp
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@ -48,9 +48,6 @@ std::mutex log_conthread_mutex;
#undef DEBUG_CONNECTION_KBPS
#endif
/* maximum number of retries for reliable packets */
#define MAX_RELIABLE_RETRY 5
#define WINDOW_SIZE 5
static session_t readPeerId(u8 *packetdata)
@ -212,7 +209,6 @@ void ConnectionSendThread::runTimeouts(float dtime)
}
float resend_timeout = udpPeer->getResendTimeout();
bool retry_count_exceeded = false;
for (Channel &channel : udpPeer->channels) {
// Remove timed out incomplete unreliable split packets
@ -231,24 +227,16 @@ void ConnectionSendThread::runTimeouts(float dtime)
m_iteration_packets_avaialble -= timed_outs.size();
for (const auto &k : timed_outs) {
session_t peer_id = readPeerId(*k.data);
u8 channelnum = readChannel(*k.data);
u16 seqnum = readU16(&(k.data[BASE_HEADER_SIZE + 1]));
channel.UpdateBytesLost(k.data.getSize());
if (k.resend_count > MAX_RELIABLE_RETRY) {
retry_count_exceeded = true;
timeouted_peers.push_back(peer->id);
/* no need to check additional packets if a single one did timeout*/
break;
}
LOG(derr_con << m_connection->getDesc()
<< "RE-SENDING timed-out RELIABLE to "
<< k.address.serializeString()
<< "(t/o=" << resend_timeout << "): "
<< "from_peer_id=" << peer_id
<< "count=" << k.resend_count
<< ", channel=" << ((int) channelnum & 0xff)
<< ", seqnum=" << seqnum
<< std::endl);
@ -259,17 +247,9 @@ void ConnectionSendThread::runTimeouts(float dtime)
// lost or really takes more time to transmit
}
if (retry_count_exceeded) {
break; /* no need to check other channels if we already did timeout */
}
channel.UpdateTimers(dtime);
}
/* skip to next peer if we did timeout */
if (retry_count_exceeded)
continue;
/* send ping if necessary */
if (udpPeer->Ping(dtime, data)) {
LOG(dout_con << m_connection->getDesc()
@ -1153,8 +1133,8 @@ SharedBuffer<u8> ConnectionReceiveThread::handlePacketType_Control(Channel *chan
try {
BufferedPacket p = channel->outgoing_reliables_sent.popSeqnum(seqnum);
// only calculate rtt from straight sent packets
if (p.resend_count == 0) {
// the rtt calculation will be a bit off for re-sent packets but that's okay
{
// Get round trip time
u64 current_time = porting::getTimeMs();
@ -1174,6 +1154,7 @@ SharedBuffer<u8> ConnectionReceiveThread::handlePacketType_Control(Channel *chan
dynamic_cast<UDPPeer *>(peer)->reportRTT(rtt);
}
}
// put bytes for max bandwidth calculation
channel->UpdateBytesSent(p.data.getSize(), 1);
if (channel->outgoing_reliables_sent.size() == 0)