//Process incoming packet
internal void ProcessPacket(NetPacket packet)
{
//not initialized
if (_connectionState == ConnectionState.Outgoing)
{
_packetPool.Recycle(packet);
return;
}
if (packet.ConnectionNumber != _connectNum && packet.Property != PacketProperty.ShutdownOk) //without connectionNum
{
NetDebug.Write(NetLogLevel.Trace, "[RR]Old packet");
_packetPool.Recycle(packet);
return;
}
_timeSinceLastPacket = 0;
NetDebug.Write("[RR]PacketProperty: {0}", packet.Property);
switch (packet.Property)
{
case PacketProperty.Merged:
int pos = NetConstants.HeaderSize;
while (pos < packet.Size)
{
ushort size = BitConverter.ToUInt16(packet.RawData, pos);
pos += 2;
NetPacket mergedPacket = _packetPool.GetPacket(size, false);
if (!mergedPacket.FromBytes(packet.RawData, pos, size))
{
_packetPool.Recycle(packet);
break;
}
pos += size;
ProcessPacket(mergedPacket);
}
break;
//If we get ping, send pong
case PacketProperty.Ping:
if (NetUtils.RelativeSequenceNumber(packet.Sequence, _pongPacket.Sequence) > 0)
{
NetDebug.Write("[PP]Ping receive, send pong");
FastBitConverter.GetBytes(_pongPacket.RawData, 3, DateTime.UtcNow.Ticks);
_pongPacket.Sequence = packet.Sequence;
NetManager.SendRaw(_pongPacket, EndPoint);
}
_packetPool.Recycle(packet);
break;
//If we get pong, calculate ping time and rtt
case PacketProperty.Pong:
if (packet.Sequence == _pingPacket.Sequence)
{
_pingTimer.Stop();
int elapsedMs = (int)_pingTimer.ElapsedMilliseconds;
_remoteDelta = BitConverter.ToInt64(packet.RawData, 3) + (elapsedMs * TimeSpan.TicksPerMillisecond) / 2 - DateTime.UtcNow.Ticks;
UpdateRoundTripTime(elapsedMs);
NetManager.ConnectionLatencyUpdated(this, elapsedMs / 2);
NetDebug.Write("[PP]Ping: {0} - {1} - {2}", packet.Sequence, elapsedMs, _remoteDelta);
}
_packetPool.Recycle(packet);
break;
case PacketProperty.Ack:
case PacketProperty.Channeled:
if (packet.ChannelId > _channels.Length)
{
_packetPool.Recycle(packet);
break;
}
var channel = _channels[packet.ChannelId] ?? (packet.Property == PacketProperty.Ack ? null : CreateChannel(packet.ChannelId));
if (channel != null)
{
if (!channel.ProcessPacket(packet))
{
_packetPool.Recycle(packet);
}
}
break;
//Simple packet without acks
case PacketProperty.Unreliable:
AddIncomingPacket(packet);
return;
case PacketProperty.MtuCheck:
case PacketProperty.MtuOk:
ProcessMtuPacket(packet);
break;
case PacketProperty.ShutdownOk:
if (_connectionState == ConnectionState.ShutdownRequested)
{
_connectionState = ConnectionState.Disconnected;
}
_packetPool.Recycle(packet);
break;
default:
NetDebug.WriteError("Error! Unexpected packet type: " + packet.Property);
break;
}
}
internal void Update(int deltaTime)
{
if (_connectionState == ConnectionState.Disconnected)
{
return;
}
_timeSinceLastPacket += deltaTime;
if (_connectionState == ConnectionState.InProgress)
{
_connectTimer += deltaTime;
if (_connectTimer > _peerListener.ReconnectDelay)
{
_connectTimer = 0;
_connectAttempts++;
if (_connectAttempts > _peerListener.MaxConnectAttempts)
{
_connectionState = ConnectionState.Disconnected;
return;
}
//else send connect again
SendConnectRequest();
}
return;
}
//Get current flow mode
int maxSendPacketsCount = _peerListener.GetPacketsPerSecond(_currentFlowMode);
int currentMaxSend;
if (maxSendPacketsCount > 0)
{
int availableSendPacketsCount = maxSendPacketsCount - _sendedPacketsCount;
currentMaxSend = Math.Min(availableSendPacketsCount, (maxSendPacketsCount * deltaTime) / NetConstants.FlowUpdateTime);
}
else
{
currentMaxSend = int.MaxValue;
}
//DebugWrite("[UPDATE]Delta: {0}ms, MaxSend: {1}", deltaTime, currentMaxSend);
//Pending acks
_reliableOrderedChannel.SendAcks();
_reliableUnorderedChannel.SendAcks();
//ResetFlowTimer
_flowTimer += deltaTime;
if (_flowTimer >= NetConstants.FlowUpdateTime)
{
NetUtils.DebugWrite("[UPDATE]Reset flow timer, _sendedPackets - {0}", _sendedPacketsCount);
_sendedPacketsCount = 0;
_flowTimer = 0;
}
//Send ping
_pingSendTimer += deltaTime;
if (_pingSendTimer >= _peerListener.PingInterval)
{
NetUtils.DebugWrite("[PP] Send ping...");
//reset timer
_pingSendTimer = 0;
//send ping
CreateAndSend(PacketProperty.Ping, _pingSequence);
//reset timer
_pingTimeStart = DateTime.UtcNow;
}
//RTT - round trip time
_rttResetTimer += deltaTime;
if (_rttResetTimer >= RttResetDelay)
{
_rttResetTimer = 0;
//Rtt update
_rtt = _avgRtt;
_ping = _avgRtt;
_peerListener.ConnectionLatencyUpdated(this, _ping);
_rttCount = 1;
}
//MTU - Maximum transmission unit
if (!_finishMtu)
{
_mtuCheckTimer += deltaTime;
if (_mtuCheckTimer >= MtuCheckDelay)
{
_mtuCheckTimer = 0;
_mtuCheckAttempts++;
if (_mtuCheckAttempts >= MaxMtuCheckAttempts)
{
_finishMtu = true;
}
else
{
lock (_mtuMutex)
{
//Send increased packet
if (_mtuIdx < NetConstants.PossibleMtu.Length - 1)
{
int newMtu = NetConstants.PossibleMtu[_mtuIdx + 1] - NetConstants.HeaderSize;
var p = _packetPool.Get(PacketProperty.MtuCheck, newMtu);
p.RawData[1] = (byte)(_mtuIdx + 1);
SendPacket(p);
}
}
}
}
}
//MTU - end
//Pending send
lock (_flushLock)
{
SendQueuedPackets(currentMaxSend);
}
}
internal void Update(int deltaTime)
{
_timeSinceLastPacket += deltaTime;
switch (_connectionState)
{
case ConnectionState.Connected:
if (_timeSinceLastPacket > _netManager.DisconnectTimeout)
{
NetUtils.DebugWrite(
"[UPDATE] Disconnect by timeout: {0} > {1}",
_timeSinceLastPacket,
_netManager.DisconnectTimeout);
_netManager.DisconnectPeerForce(this, DisconnectReason.Timeout, 0, null);
return;
}
break;
case ConnectionState.ShutdownRequested:
if (_timeSinceLastPacket > _netManager.DisconnectTimeout)
{
_connectionState = ConnectionState.Disconnected;
}
else
{
_shutdownTimer += deltaTime;
if (_shutdownTimer >= ShutdownDelay)
{
_shutdownTimer = 0;
_netManager.SendRaw(_shutdownPacket, _remoteEndPoint);
}
}
return;
case ConnectionState.Outcoming:
_connectTimer += deltaTime;
if (_connectTimer > _netManager.ReconnectDelay)
{
_connectTimer = 0;
_connectAttempts++;
if (_connectAttempts > _netManager.MaxConnectAttempts)
{
_netManager.DisconnectPeerForce(this, DisconnectReason.ConnectionFailed, 0, null);
return;
}
//else send connect again
_netManager.SendRaw(_connectRequestPacket, _remoteEndPoint);
}
return;
case ConnectionState.Disconnected:
case ConnectionState.Incoming:
return;
}
//Send ping
_pingSendTimer += deltaTime;
if (_pingSendTimer >= _netManager.PingInterval)
{
NetUtils.DebugWrite("[PP] Send ping...");
//reset timer
_pingSendTimer = 0;
//send ping
_pingPacket.Sequence = _pingSequence;
_netManager.SendRaw(_pingPacket, _remoteEndPoint);
//reset timer
_pingTimeStart = DateTime.UtcNow;
}
//RTT - round trip time
_rttResetTimer += deltaTime;
if (_rttResetTimer >= RttResetDelay)
{
_rttResetTimer = 0;
//Rtt update
_rtt = _avgRtt;
_ping = _avgRtt;
_netManager.ConnectionLatencyUpdated(this, _ping);
_rttCount = 1;
}
UpdateMtuLogic(deltaTime);
//Pending send
Flush();
}
internal void Update(int deltaTime)
{
if (_connectionState == ConnectionState.Connected && _timeSinceLastPacket > _netManager.DisconnectTimeout)
{
NetUtils.DebugWrite(
"[UPDATE] Disconnect by timeout: {0} > {1}",
_timeSinceLastPacket,
_netManager.DisconnectTimeout);
_netManager.DisconnectPeer(this, DisconnectReason.Timeout, 0, true, null, 0, 0);
return;
}
if (_connectionState == ConnectionState.ShutdownRequested)
{
if (_timeSinceLastPacket > _netManager.DisconnectTimeout)
{
_connectionState = ConnectionState.Disconnected;
}
else
{
_netManager.SendRaw(_shutdownPacket.RawData, 0, _shutdownPacket.Size, _remoteEndPoint);
}
return;
}
if (_connectionState == ConnectionState.Disconnected)
{
return;
}
_timeSinceLastPacket += deltaTime;
if (_connectionState == ConnectionState.InProgress)
{
_connectTimer += deltaTime;
if (_connectTimer > _netManager.ReconnectDelay)
{
_connectTimer = 0;
_connectAttempts++;
if (_connectAttempts > _netManager.MaxConnectAttempts)
{
_netManager.DisconnectPeer(this, DisconnectReason.ConnectionFailed, 0, true, null, 0, 0);
return;
}
//else send connect again
SendConnectRequest();
}
return;
}
//Send ping
_pingSendTimer += deltaTime;
if (_pingSendTimer >= _netManager.PingInterval)
{
NetUtils.DebugWrite("[PP] Send ping...");
//reset timer
_pingSendTimer = 0;
//send ping
CreateAndSend(PacketProperty.Ping, _pingSequence);
//reset timer
_pingTimeStart = DateTime.UtcNow;
}
//RTT - round trip time
_rttResetTimer += deltaTime;
if (_rttResetTimer >= RttResetDelay)
{
_rttResetTimer = 0;
//Rtt update
_rtt = _avgRtt;
_ping = _avgRtt;
_netManager.ConnectionLatencyUpdated(this, _ping);
_rttCount = 1;
}
//MTU - Maximum transmission unit
if (!_finishMtu)
{
_mtuCheckTimer += deltaTime;
if (_mtuCheckTimer >= MtuCheckDelay)
{
_mtuCheckTimer = 0;
_mtuCheckAttempts++;
if (_mtuCheckAttempts >= MaxMtuCheckAttempts)
{
_finishMtu = true;
}
else
{
lock (_mtuMutex)
{
//Send increased packet
if (_mtuIdx < NetConstants.PossibleMtu.Length - 1)
{
int newMtu = NetConstants.PossibleMtu[_mtuIdx + 1] - NetConstants.HeaderSize;
var p = _packetPool.Get(PacketProperty.MtuCheck, newMtu);
p.RawData[1] = (byte)(_mtuIdx + 1);
SendPacket(p);
}
}
}
}
}
//MTU - end
//Pending send
Flush();
}
internal void Update(int deltaTime)
{
if (_connectionState == ConnectionState.Disconnected)
{
return;
}
if (_connectionState == ConnectionState.InProgress)
{
_connectTimer += deltaTime;
if (_connectTimer > _peerListener.ReconnectDelay)
{
_connectTimer = 0;
_connectAttempts++;
if (_connectAttempts > _peerListener.MaxConnectAttempts)
{
_connectionState = ConnectionState.Disconnected;
return;
}
//else send connect again
SendConnectRequest();
}
return;
}
//Get current flow mode
int maxSendPacketsCount = _peerListener.GetPacketsPerSecond(_currentFlowMode);
int currentMaxSend;
if (maxSendPacketsCount > 0)
{
int availableSendPacketsCount = maxSendPacketsCount - _sendedPacketsCount;
currentMaxSend = Math.Min(availableSendPacketsCount, (maxSendPacketsCount * deltaTime) / NetConstants.FlowUpdateTime);
}
else
{
currentMaxSend = int.MaxValue;
}
DebugWrite("[UPDATE]Delta: {0}ms, MaxSend: {1}", deltaTime, currentMaxSend);
//Pending acks
_reliableOrderedChannel.SendAcks();
_reliableUnorderedChannel.SendAcks();
//Pending send
int currentSended = 0;
while (currentSended < currentMaxSend)
{
//Get one of packets
if (_reliableOrderedChannel.SendNextPacket() ||
_reliableUnorderedChannel.SendNextPacket() ||
_sequencedChannel.SendNextPacket() ||
_simpleChannel.SendNextPacket())
{
currentSended++;
}
else
{
//no outgoing packets
break;
}
}
//Increase counter
_sendedPacketsCount += currentSended;
//ResetFlowTimer
_flowTimer += deltaTime;
if (_flowTimer >= NetConstants.FlowUpdateTime)
{
DebugWrite("[UPDATE]Reset flow timer, _sendedPackets - {0}", _sendedPacketsCount);
_sendedPacketsCount = 0;
_flowTimer = 0;
}
//Send ping
_pingSendTimer += deltaTime;
if (_pingSendTimer >= _peerListener.PingInterval)
{
DebugWrite("[PP] Send ping...");
//reset timer
_pingSendTimer = 0;
//send ping
CreateAndSend(PacketProperty.Ping, _pingSequence);
//reset timer
_pingTimeStart = DateTime.UtcNow;
}
//RTT - round trip time
_rttResetTimer += deltaTime;
if (_rttResetTimer >= RttResetDelay)
{
_rttResetTimer = 0;
//Rtt update
_rtt = _avgRtt;
_ping = _avgRtt;
_peerListener.ConnectionLatencyUpdated(this, _ping);
_rttCount = 1;
}
//MTU - Maximum transmission unit
if (!_finishMtu)
{
_mtuCheckTimer += deltaTime;
if (_mtuCheckTimer >= MtuCheckDelay)
{
_mtuCheckTimer = 0;
_mtuCheckAttempts++;
if (_mtuCheckAttempts >= MaxMtuCheckAttempts)
{
_finishMtu = true;
}
else
{
lock (_mtuMutex)
{
//Send increased packet
if (_mtuIdx < NetConstants.PossibleMtu.Length - 1)
{
int newMtu = NetConstants.PossibleMtu[_mtuIdx + 1] - NetConstants.HeaderSize;
var p = GetPacketFromPool(PacketProperty.MtuCheck, newMtu);
p.RawData[1] = (byte)(_mtuIdx + 1);
SendPacket(p);
}
}
}
}
}
//MTU - end
//Flush
if (_mergePos > 0)
{
if (_mergeCount > 1)
{
DebugWrite("Send merged: " + _mergePos + ", count: " + _mergeCount);
_peerListener.SendRaw(_mergeData.RawData, 0, NetConstants.HeaderSize + _mergePos, _remoteEndPoint);
}
else
{
//Send without length information and merging
_peerListener.SendRaw(_mergeData.RawData, NetConstants.HeaderSize + 2, _mergePos - 2, _remoteEndPoint);
}
_mergePos = 0;
_mergeCount = 0;
}
}
internal void Update(int deltaTime)
{
if (_connectionState == ConnectionState.Connected && _timeSinceLastPacket > _netManager.DisconnectTimeout)
{
NetUtils.DebugWrite(
"[UPDATE] Disconnect by timeout: {0} > {1}",
_timeSinceLastPacket,
_netManager.DisconnectTimeout);
_netManager.DisconnectPeer(this, DisconnectReason.Timeout, 0, true, null, 0, 0);
return;
}
if (_connectionState == ConnectionState.ShutdownRequested)
{
if (_timeSinceLastPacket > _netManager.DisconnectTimeout)
{
_connectionState = ConnectionState.Disconnected;
}
else
{
_netManager.SendRaw(_shutdownPacket.RawData, 0, _shutdownPacket.Size, _remoteEndPoint);
}
return;
}
if (_connectionState == ConnectionState.Disconnected)
{
return;
}
_timeSinceLastPacket += deltaTime;
if (_connectionState == ConnectionState.InProgress)
{
_connectTimer += deltaTime;
if (_connectTimer > _netManager.ReconnectDelay)
{
_connectTimer = 0;
_connectAttempts++;
if (_connectAttempts > _netManager.MaxConnectAttempts)
{
_netManager.DisconnectPeer(this, DisconnectReason.ConnectionFailed, 0, true, null, 0, 0);
return;
}
//else send connect again
SendConnectRequest();
}
return;
}
//Send ping
_pingSendTimer += deltaTime;
if (_pingSendTimer >= _netManager.PingInterval)
{
NetUtils.DebugWrite("[PP] Send ping...");
//reset timer
_pingSendTimer = 0;
//send ping
CreateAndSend(PacketProperty.Ping, _pingSequence);
//reset timer
_pingTimeStart = DateTime.UtcNow;
}
//RTT - round trip time
_rttResetTimer += deltaTime;
if (_rttResetTimer >= RttResetDelay)
{
_rttResetTimer = 0;
//Rtt update
_rtt = _avgRtt;
_ping = _avgRtt;
_netManager.ConnectionLatencyUpdated(this, _ping);
_rttCount = 1;
}
//Pending send
Flush();
}
