public override void Deliver(Contact source, byte[] message)
{
using (MemoryStream mStream = new MemoryStream(message))
{
switch ((PacketFlag)mStream.ReadByte())
{
case PacketFlag.PutRequest:
{
lock (localData)
{
PutRequest r = Serializer.DeserializeWithLengthPrefix<PutRequest>(mStream, PrefixStyle.Base128);
if (r.Data == null)
{
byte[] b;
localData.TryRemove(r.Key, out b);
}
else
localData[r.Key] = r.Data;
break;
}
}
case PacketFlag.GetRequest:
{
GetRequest r = Serializer.DeserializeWithLengthPrefix<GetRequest>(mStream, PrefixStyle.Base128);
Callback.SendResponse(RoutingTable.LocalContact, source, r.TokenId, GetData(r.Key));
break;
}
default:
break;
}
}
}
public override void Deliver(Contact source, byte[] message)
{
byte flag = message[0];
Action<Contact, byte[]> processor = processors[flag];
if (processor != null)
processor(source, message.Skip(1).ToArray());
}
/// <summary>
/// Sends the response back to the remote end
/// </summary>
/// <param name="local">The local contact</param>
/// <param name="target">The target.</param>
/// <param name="callbackId">The callback id.</param>
/// <param name="responseBytes">The response bytes.</param>
public void SendResponse(Contact local, Contact target, long callbackId, byte[] responseBytes)
{
using (MemoryStream m = new MemoryStream())
{
Serializer.SerializeWithLengthPrefix<Response>(m, new Response(callbackId, responseBytes), PrefixStyle.Base128);
target.Send(local, ConsumerId, m.ToArray());
}
}
protected void Send(Contact destination, Guid consumerId, byte flag, byte[] data, bool reliable = true, bool ordered = true, int channel = 1)
{
byte[] packet = new byte[data.Length + 1];
packet[0] = flag;
Array.ConstrainedCopy(data, 0, packet, 1, data.Length);
destination.Send(RoutingTable.LocalContact, consumerId, packet, reliable, ordered, channel);
}
public ContactCollection(DistributedRoutingTable drt)
{
LocalContact = drt.LocalContact;
NetworkId = drt.NetworkId;
Configuration = drt.Configuration;
this.DistributedRoutingTable = drt;
for (int i = 0; i < buckets.Length; i++)
buckets[i] = new ContactBucket(drt, i);
}
public override TimeSpan Ping(Contact source, TimeSpan timeout)
{
if (!IsDead && random.NextDouble() >= PingFailChance)
{
Table.DeliverPing(source);
return TimeSpan.FromMilliseconds(1);
}
else
return TimeSpan.MaxValue;
}
/// <summary>
/// Deliver a message encoded into the given byte array
/// </summary>
/// <param name="source">The source of the message</param>
/// <param name="message">The message.</param>
public override void Deliver(Contact source, byte[] message)
{
using (MemoryStream m = new MemoryStream(message))
{
Response r = Serializer.DeserializeWithLengthPrefix<Response>(m, PrefixStyle.Base128);
WaitToken token;
if (tokens.TryRemove(r.CallbackId, out token))
{
token.Source = source;
token.Response = r.ResponseBytes;
}
else if (r.CallbackId > nextId)
{
throw new Exception("Token not found");
}
}
}
/// <summary>
/// Deliver a message encoded into the given byte array
/// </summary>
/// <param name="source">The source of the message</param>
/// <param name="message">The message.</param>
public override void Deliver(Contact source, byte[] message)
{
using (MemoryStream m = new MemoryStream(message))
{
Response r = Serializer.Deserialize<Response>(m);
WaitToken token;
//if (tokens.TryGetValue(r.CallbackId, out token))
if (tokens.TryRemove(r.CallbackId, out token))
{
token.Response = r.ResponseBytes;
}
else
{
throw new Exception("Token not found");
}
}
}
/// <summary>
/// Moves the specified contact to the top of the most recently used queue
/// </summary>
/// <param name="source">The source.</param>
internal void Update(Contact source)
{
#if DEBUG
if (Configuration.UpdateRoutingTable)
{
#endif
if (source == null)
return;
if (source.Identifier == LocalIdentifier)
return;
if (source.NetworkId != NetworkId)
throw new ArgumentException("Network Id of contact and ContactCollection must be the same");
buckets[Identifier512.CommonPrefixLength(source.Identifier, LocalIdentifier)].Update(source);
#if DEBUG
}
#endif
}
public TimeSpan Ping(Contact source, TimeSpan timeout)
{
ProxyContact proxySource = (ProxyContact)source;
MemoryStream m = new MemoryStream();
Serializer.SerializeWithLengthPrefix<Contact>(m, source, PrefixStyle.Base128);
m.WriteByte(0);
var waitToken = Game1.UdpFactory.SendPing(proxySource, this, true);
Stopwatch timer = new Stopwatch();
timer.Start();
if (waitToken.Wait((int)timeout.TotalMilliseconds))
return timer.Elapsed;
return TimeSpan.MaxValue;
}
public void Send(Contact source, Guid consumerId, byte[] message, bool reliable, bool ordered, int channel)
{
MemoryStream m = new MemoryStream();
Serializer.SerializeWithLengthPrefix<Contact>(m, source, PrefixStyle.Base128);
m.WriteByte(1);
m.Write(consumerId.ToByteArray(), 0, 16);
m.Write(BitConverter.GetBytes(message.Length), 0, 4);
m.Write(message, 0, message.Length);
try
{
Game1.UdpFactory.Send(m.ToArray(), EndPoint);
}
catch (SocketException e)
{
Console.WriteLine(e);
}
}
/// <summary> /// Deliver a message encoded into the given byte array /// </summary> /// <param name="message">The message.</param> /// <param name="source">The source of the message</param> /// <returns>The response to return</returns> public abstract void Deliver(Contact source, byte[] message);
public override TimeSpan Ping(Contact source, TimeSpan timeout)
{
return ProxyInstance.Ping(source, timeout);
}
public override TimeSpan Ping(Contact source, TimeSpan timeout)
{
UdpContact uSource = source as UdpContact;
using (MemoryStream m = new MemoryStream())
{
using(BinaryWriter w =new BinaryWriter(m))
{
w.Write((byte)PacketFlag.Ping);
WriteContact(w, this);
var callback = localTable.GetConsumer<Callback>(Callback.CONSUMER_ID);
var token = callback.AllocateToken();
w.Write(IPAddress.HostToNetworkOrder(token.Id));
try
{
SendUdpMessage(m.ToArray(), Ip, Port);
DateTime start = DateTime.Now;
if (token.Wait(timeout.Milliseconds))
{
return DateTime.Now - start;
}
return TimeSpan.MaxValue;
}
finally
{
callback.FreeToken(token);
}
}
}
}
public override void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1)
{
base.Send(source, consumerId, message, reliable, ordered, channel);
using(MemoryStream m = new MemoryStream())
{
using(BinaryWriter w = new BinaryWriter(m))
{
w.Write((byte)PacketFlag.Data);
WriteContact(w, this);
byte[] guidBytes = consumerId.ToByteArray();
w.Write(IPAddress.HostToNetworkOrder(guidBytes.Length));
w.Write(guidBytes);
w.Write(IPAddress.HostToNetworkOrder(message.Length));
w.Write(message);
SendUdpMessage(m.ToArray(), Ip, Port);
}
}
}
private bool ConnectToNodeAsParent(Contact node, int timeout)
{
bool isAlreadyChild = children.ContainsKey(node);
bool isAlreadyParent;
lock (parents)
isAlreadyParent = parents.Contains(node);
if (isAlreadyParent || isAlreadyChild)
return false;
Callback.WaitToken token = callback.AllocateToken();
try
{
using (MemoryStream m = new MemoryStream())
{
Serializer.SerializeWithLengthPrefix<ParentageRequest>(m, new ParentageRequest()
{
CallbackId = token.Id,
}, PrefixStyle.Base128);
base.Send(node, ConsumerId, (byte)PacketFlag.ParentRequest, m.ToArray());
}
if (!token.Wait(timeout))
return false;
if (token.Response[0] == 0)
return false;
//add candidate to set of parents, as this request has been successful
lock (parents)
{
parents.Add(node);
}
return true;
}
finally
{
callback.FreeToken(token);
}
}
/// <summary> /// Pings this instance. /// </summary> /// <returns>The response time, or Timespan.MaxValue if it timed out</returns> public abstract TimeSpan Ping(Contact source, TimeSpan timeout);
private void ParentRequestProcessor(Contact c, byte[] data)
{
using (MemoryStream m = new MemoryStream(data))
{
var request = Serializer.DeserializeWithLengthPrefix<ParentageRequest>(m, PrefixStyle.Base128);
if ((ChildrenCount < 2 || children.ContainsKey(c)) && (ParentCount > 0 || Root))
{
callback.SendResponse(RoutingTable.LocalContact, c, request.CallbackId, new byte[] { 1 });
children[c] = DateTime.Now;
}
else
{
callback.SendResponse(RoutingTable.LocalContact, c, request.CallbackId, new byte[] { 0 });
}
}
}
private void VideoFrameDataProcessor(Contact c, byte[] data)
{
new LoggerMessages.GeneralMessage("Received a frame " + DateTime.Now.Second + " " + DateTime.Now.Millisecond).Send();
VideoFrame frame = Serializer.DeserializeWithLengthPrefix<VideoFrame>(new MemoryStream(data), PrefixStyle.Base128);
VideoFrames.Enqueue(frame);
ThreadPool.QueueUserWorkItem(_ => base.Send(c, ConsumerId, (byte)PacketFlag.Pong, new byte[] { 1 }));
if (ChildrenCount > 0)
{
ThreadPool.QueueUserWorkItem(_ => SendVideoData(data));
new LoggerMessages.GeneralMessage("Sending a message to a child " + DateTime.Now.Second + " " + DateTime.Now.Millisecond).Send();
}
}
public override void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1)
{
ProxyInstance.Send(source, consumerId, message, reliable, ordered, channel);
}
public override TimeSpan Ping(Contact source, TimeSpan timeout)
{
table.DeliverPing(source);
return TimeSpan.FromMilliseconds(1);
}
/// <summary>
/// Sends a message to the consumer with the given Id
/// </summary>
/// <param name="consumerId">The consumer id.</param>
/// <param name="message">The message.</param>
/// <returns>The response fromthe remote consumer, or null if there was no response</returns>
public virtual void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1)
{
Interlocked.Add(ref sentBytes, message.Length);
}
public void PingResponse(Contact source, Callback.WaitToken token)
{
callback.FreeToken(token);
table.DeliverPing(source);
}
private void PongRequestProcessor(Contact c, byte[] data)
{
DateTime d;
if (children.TryGetValue(c, out d))
children.TryUpdate(c, DateTime.Now, d);
}
/// <summary>
/// Sends the response back to the remote end
/// </summary>
/// <param name="local">The local contact</param>
/// <param name="target">The target.</param>
/// <param name="callbackId">The callback id.</param>
/// <param name="responseBytes">The response bytes.</param>
public void SendResponse(Contact local, Contact target, long callbackId, byte[] responseBytes)
{
using (MemoryStream m = new MemoryStream())
{
Serializer.Serialize<Response>(m, new Response(callbackId, responseBytes));
target.Send(local, ConsumerId, m.ToArray());
}
}
/// <summary> /// Sends a message to the consumer with the given Id /// </summary> /// <param name="consumerId">The consumer id.</param> /// <param name="message">The message.</param> /// <returns>The response fromthe remote consumer, or null if there was no response</returns> public abstract void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1);
public override void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1)
{
table.Deliver(source, consumerId, message);
}
public override void Send(Contact source, Guid consumerId, byte[] message, bool reliable = true, bool ordered = true, int channel = 1)
{
if (!IsDead && random.NextDouble() >= SendFailChance)
Table.Deliver(source, consumerId, message);
}
