void SendKeepalives()
{
if (isserver)
{
foreach (KeyValuePair <IPEndPoint, Level1ConnectionInfo> kvp in connections)
{
IPEndPoint connection = kvp.Key;
Level1ConnectionInfo connectioninfo = kvp.Value;
if ((int)DateTime.Now.Subtract(connectioninfo.LastOutgoingPacketTime).TotalMilliseconds > (KeepaliveIntervalSeconds * 1000))
{
// LogFile.WriteLine("sending keepalive to " + connection.ToString() );
Send(connection, new byte[] { 0 });
connectioninfo.UpdateLastOutgoingPacketTime();
}
}
}
else
{
Level1ConnectionInfo connectioninfo = connectiontoserver;
if ((int)DateTime.Now.Subtract(connectioninfo.LastOutgoingPacketTime).TotalMilliseconds > (KeepaliveIntervalSeconds * 1000))
{
//LogFile.WriteLine("sending keepalive to server" );
Send(new byte[] { 0 });
connectioninfo.UpdateLastOutgoingPacketTime();
}
}
}
void CheckDisconnections()
{
if (DateTime.Now.Subtract(lastdisconnectioncheck).TotalMilliseconds < 1000)
{
return;
}
lastdisconnectioncheck = DateTime.Now;
List <IPEndPoint> disconnected = new List <IPEndPoint>();
//LogFile.WriteLine( Name + " Checking disconnections:" );
foreach (KeyValuePair <IPEndPoint, Level1ConnectionInfo> entry in connections)
{
IPEndPoint connection = entry.Key;
Level1ConnectionInfo connectioninfo = (Level1ConnectionInfo)entry.Value;
int timesincelastpacket = (int)(DateTime.Now.Subtract(connectioninfo.LastTimestamp).TotalMilliseconds);
// LogFile.WriteLine( Name + " level1connection " + connectioninfo + " time since last packet: " + timesincelastpacket );
if (timesincelastpacket > (ConnectionTimeOutSeconds * 1000))
{
disconnected.Add(connection);
}
}
for (int i = 0; i < disconnected.Count; i++)
{
IPEndPoint connection = disconnected[i];
Level1ConnectionInfo connectioninfo = (Level1ConnectionInfo)connections[connection];
if (Disconnection != null)
{
Disconnection(this, connectioninfo.connectioninfo);
}
LogFile.WriteLine(Name + ": level 1 disconnection: " + connectioninfo.EndPoint.ToString());
connections.Remove(connection);
}
}
// sends received packets up stack
void ProcessReceivedPacket(IPEndPoint endpoint, byte[] packetdata)
{
if (!connections.ContainsKey(endpoint))
{
LogFile.WriteLine(Name + ": level 1 newconnection: " + endpoint.ToString());
connections.Add(endpoint, new Level1ConnectionInfo(endpoint, new ConnectionInfo(endpoint, endpoint.Address, endpoint.Port)));
}
Level1ConnectionInfo level1connectioninfo = connections[endpoint] as Level1ConnectionInfo;
level1connectioninfo.LastTimestamp = DateTime.Now;
// LogFile.WriteLine( Name + " updating timestamp for connection " + level1connectioninfo );
if (ReceivedPacket != null && packetdata.Length > 1)
{
ReceivedPacket(this, level1connectioninfo.connectioninfo, packetdata, 0, packetdata.GetLength(0));
}
}