/// <summary>
/// Default constructor
/// </summary>
/// <param name="parent">Parent bucket if this is a child bucket, or
/// null if this is a root bucket</param>
/// <param name="maxBurst">Maximum size of the bucket in bytes, or
/// zero if this bucket has no maximum capacity</param>
/// <param name="dripRate">Rate that the bucket fills, in bytes per
/// second. If zero, the bucket always remains full</param>
public TokenBucket(TokenBucket parent, int maxBurst, int dripRate)
{
this.parent = parent;
MaxBurst = maxBurst;
DripRate = dripRate;
lastDrip = Environment.TickCount & Int32.MaxValue;
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="parent">Parent bucket if this is a child bucket, or
/// null if this is a root bucket</param>
/// <param name="maxBurst">Maximum size of the bucket in bytes, or
/// zero if this bucket has no maximum capacity</param>
/// <param name="dripRate">Rate that the bucket fills, in bytes per
/// second. If zero, the bucket always remains full</param>
public TokenBucket(TokenBucket parent, int maxBurst, int dripRate)
{
this.parent = parent;
MaxBurst = maxBurst;
DripRate = dripRate;
lastDrip = Environment.TickCount & Int32.MaxValue;
}
public LLUDPServer(LLUDP udp, IScene scene, IPAddress bindAddress, int port, IConfigSource configSource, IScheduler scheduler)
: base(bindAddress, port)
{
m_udp = udp;
Scene = scene;
Scheduler = scheduler;
IConfig throttleConfig = configSource.Configs["LLUDP"];
m_throttleRates = new ThrottleRates(LLUDPServer.MTU, throttleConfig);
m_resendTimer = new TimedEvent(100);
m_ackTimer = new TimedEvent(500);
m_pingTimer = new TimedEvent(5000);
m_httpServer = Scene.Simian.GetAppModule<IHttpServer>();
IConfig config = configSource.Configs["LLUDP"];
if (config != null)
{
m_asyncPacketHandling = config.GetBoolean("AsyncPacketHandling", true);
m_recvBufferSize = config.GetInt("SocketReceiveBufferSize", 0);
}
m_throttle = new TokenBucket(null, m_throttleRates.SceneTotalLimit, m_throttleRates.SceneTotal);
PacketEvents = new PacketEventDictionary(Scheduler);
Scene.OnPresenceRemove += PresenceRemoveHandler;
}
/// <summary>
/// Default constructor
/// </summary>
public WSAgent(WebSockets server, TokenBucket parentThrottle, ThrottleRates rates,
UUID agentID, UUID sessionID, Socket socket, bool isChildAgent)
{
m_id = agentID;
m_server = server;
m_interestList = new InterestList(this, 200);
IsChildPresence = isChildAgent;
m_localID = m_server.Scene.CreateLocalID();
//TextureEntry = new Primitive.TextureEntry(DEFAULT_AVATAR_TEXTURE);
SessionID = sessionID;
Socket = socket;
// Create a token bucket throttle for this client that has the scene token bucket as a parent
m_throttle = new TokenBucket(parentThrottle, rates.ClientTotalLimit, rates.ClientTotal);
// Create an array of token buckets for this clients different throttle categories
m_throttleCategories = new TokenBucket[THROTTLE_CATEGORY_COUNT];
for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++)
{
ThrottleCategory type = (ThrottleCategory)i;
// Initialize the message outboxes, where messages sit while they are waiting for tokens
m_messageOutboxes[i] = new LocklessQueue<OutgoingMessage>();
// Initialize the token buckets that control the throttling for each category
m_throttleCategories[i] = new TokenBucket(m_throttle, rates.GetLimit(type), rates.GetRate(type));
}
// Initialize this to a sane value to prevent early disconnects
TickLastMessageReceived = Environment.TickCount & Int32.MaxValue;
}
public WebSocketServer(WebSockets server)
{
m_server = server;
m_receiveBufferSize = MTU;
m_readPool = new ObjectPool<SocketAsyncEventArgs>(0, CreateSocketArgs);
// TODO: Support throttle config
m_throttleRates = new ThrottleRates(MTU, null);
m_throttle = new TokenBucket(null, m_throttleRates.SceneTotalLimit, m_throttleRates.SceneTotal);
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="server">Reference to the UDP server this client is connected to</param>
/// <param name="rates">Default throttling rates and maximum throttle limits</param>
/// <param name="parentThrottle">Parent HTB (hierarchical token bucket)
/// that the child throttles will be governed by</param>
/// <param name="circuitCode">Circuit code for this connection</param>
/// <param name="agentID">AgentID for the connected agent</param>
/// <param name="sessionID">SessionID for the connected agent</param>
/// <param name="secureSessionID">SecureSessionID for the connected agent</param>
/// <param name="defaultRTO">Default retransmission timeout, in milliseconds</param>
/// <param name="maxRTO">Maximum retransmission timeout, in milliseconds</param>
/// <param name="remoteEndPoint">Remote endpoint for this connection</param>
/// <param name="isChildAgent">True if this agent is currently simulated by
/// another simulator, otherwise false</param>
public LLAgent(LLUDPServer server, ThrottleRates rates, TokenBucket parentThrottle,
uint circuitCode, UUID agentID, UUID sessionID, UUID secureSessionID, IPEndPoint remoteEndPoint,
int defaultRTO, int maxRTO, bool isChildAgent)
{
m_id = agentID;
m_udpServer = server;
m_scene = m_udpServer.Scene;
PacketArchive = new IncomingPacketHistoryCollection(200);
NeedAcks = new UnackedPacketCollection();
PendingAcks = new LocklessQueue<uint>();
EventQueue = new LLEventQueue();
m_nextOnQueueEmpty = 1;
m_defaultRTO = 1000 * 3;
m_maxRTO = 1000 * 60;
m_packetOutboxes = new LocklessQueue<OutgoingPacket>[THROTTLE_CATEGORY_COUNT];
m_nextPackets = new OutgoingPacket[THROTTLE_CATEGORY_COUNT];
m_interestList = new InterestList(this, 200);
IsChildPresence = isChildAgent;
m_localID = m_scene.CreateLocalID();
TextureEntry = new Primitive.TextureEntry(DEFAULT_AVATAR_TEXTURE);
SessionID = sessionID;
SecureSessionID = secureSessionID;
RemoteEndPoint = remoteEndPoint;
CircuitCode = circuitCode;
if (defaultRTO != 0)
m_defaultRTO = defaultRTO;
if (maxRTO != 0)
m_maxRTO = maxRTO;
// Create a token bucket throttle for this client that has the scene token bucket as a parent
m_throttle = new TokenBucket(parentThrottle, rates.ClientTotalLimit, rates.ClientTotal);
// Create an array of token buckets for this clients different throttle categories
m_throttleCategories = new TokenBucket[THROTTLE_CATEGORY_COUNT];
for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++)
{
ThrottleCategory type = (ThrottleCategory)i;
// Initialize the packet outboxes, where packets sit while they are waiting for tokens
m_packetOutboxes[i] = new LocklessQueue<OutgoingPacket>();
// Initialize the token buckets that control the throttling for each category
m_throttleCategories[i] = new TokenBucket(m_throttle, rates.GetLimit(type), rates.GetRate(type));
}
// Default the retransmission timeout to three seconds
RTO = m_defaultRTO;
// Initialize this to a sane value to prevent early disconnects
TickLastPacketReceived = Util.TickCount();
IsConnected = true;
}
