/// <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>
/// Register drip rate requested by a child of this throttle. Pass the
/// changes up the hierarchy.
/// </summary>
public void RegisterRequest(TokenBucket child, Int64 request)
{
lock (m_children)
{
m_children[child] = request;
TotalDripRequest = 0;
foreach (KeyValuePair <TokenBucket, Int64> cref in m_children)
{
TotalDripRequest += cref.Value;
}
}
// Pass the new values up to the parent
if (Parent != null)
{
Int64 effectiveDripRate;
if (RequestedDripRate > 0)
{
effectiveDripRate = Math.Min(RequestedDripRate, TotalDripRequest);
}
else
{
effectiveDripRate = TotalDripRequest;
}
Parent.RegisterRequest(this, effectiveDripRate);
}
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="identifier">Identifier for this token bucket</param>
/// <param name="parent">Parent bucket if this is a child bucket, or
/// null if this is a root bucket</param>
/// <param name="requestedDripRate">
/// Requested rate that the bucket fills, in bytes per
/// second. If zero, the bucket always remains full.
/// </param>
public TokenBucket(string identifier, TokenBucket parent, Int64 requestedDripRate, Int64 maxDripRate)
{
Identifier = identifier;
Parent = parent;
RequestedDripRate = requestedDripRate;
MaxDripRate = maxDripRate;
m_lastDrip = Util.EnvironmentTickCount();
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="identifier">Identifier for this token bucket</param>
/// <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, float dripRate, float MaxBurst)
{
m_counter++;
Parent = parent;
RequestedDripRate = dripRate;
RequestedBurst = MaxBurst;
m_lastDrip = Util.GetTimeStampMS() + 100000.0; // skip first drip
}
/// <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, Int64 dripRate)
{
m_identifier = m_counter++;
Parent = parent;
RequestedDripRate = dripRate;
// TotalDripRequest = dripRate; // this will be overwritten when a child node registers
// MaxBurst = (Int64)((double)dripRate * m_quantumsPerBurst);
m_lastDrip = Util.EnvironmentTickCount();
}
// <summary>
//
// </summary>
public AdaptiveTokenBucket(TokenBucket parent, Int64 maxDripRate, bool enabled) : base(parent, maxDripRate)
{
Enabled = enabled;
if (Enabled)
{
// m_log.DebugFormat("[TOKENBUCKET] Adaptive throttle enabled");
MaxDripRate = maxDripRate;
AdjustedDripRate = m_minimumFlow;
}
}
// <summary>
//
// </summary>
public AdaptiveTokenBucket(TokenBucket parent, float maxDripRate, float maxBurst, bool enabled)
: base(parent, maxDripRate, maxBurst)
{
m_enabled = enabled;
MaxDripRate = maxDripRate;
if (enabled)
AdjustedDripRate = m_maxDripRate * .5f;
else
AdjustedDripRate = m_maxDripRate;
}
/// <summary>
/// Constructor for the AdaptiveTokenBucket class
/// <param name="identifier">Unique identifier for the client</param>
/// <param name="parent">Parent bucket in the hierarchy</param>
/// <param name="requestedDripRate"></param>
/// <param name="maxDripRate">The ceiling rate for adaptation</param>
/// <param name="minDripRate">The floor rate for adaptation</param>
/// </summary>
public AdaptiveTokenBucket(string identifier, TokenBucket parent, Int64 requestedDripRate, Int64 maxDripRate, Int64 minDripRate, bool enabled)
: base(identifier, parent, requestedDripRate, maxDripRate)
{
AdaptiveEnabled = enabled;
if (AdaptiveEnabled)
{
// m_log.DebugFormat("[TOKENBUCKET]: Adaptive throttle enabled");
m_minimumFlow = minDripRate;
TargetDripRate = m_minimumFlow;
AdjustedDripRate = m_minimumFlow;
}
}
public int GetCatBytesCanSend(ThrottleOutPacketType cat, int timeMS)
{
int icat = (int)cat;
if (icat > 0 && icat < THROTTLE_CATEGORY_COUNT)
{
TokenBucket bucket = m_throttleCategories[icat];
return(bucket.GetCatBytesCanSend(timeMS));
}
else
{
return(0);
}
}
// <summary>
//
// </summary>
public AdaptiveTokenBucket(TokenBucket parent, float maxDripRate, float maxBurst, bool enabled)
: base(parent, maxDripRate, maxBurst)
{
m_enabled = enabled;
MaxDripRate = maxDripRate;
if (enabled)
{
AdjustedDripRate = m_maxDripRate * .5f;
}
else
{
AdjustedDripRate = m_maxDripRate;
}
}
/// <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 = "remoteEndPoint">Remote endpoint for this connection</param>
/// <param name="defaultRTO"></param>
/// <param name="maxRTO"></param>
public LLUDPClient(LLUDPServer server, ThrottleRates rates, TokenBucket parentThrottle, uint circuitCode,
UUID agentID, IPEndPoint remoteEndPoint, int defaultRTO, int maxRTO)
{
AgentID = agentID;
RemoteEndPoint = remoteEndPoint;
CircuitCode = circuitCode;
m_udpServer = server;
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.TotalLimit, 0);
// remember the rates the client requested
Rates = new int[(int)ThrottleOutPacketType.Count];
for (int i = 0; i < (int)ThrottleOutPacketType.Count; i++)
{
PacketsCounts[i] = 0;
}
//Set the priorities for the different packet types
//Higher is more important
MapCatsToPriority[(int)ThrottleOutPacketType.Resend] = 7;
MapCatsToPriority[(int)ThrottleOutPacketType.Land] = 1;
MapCatsToPriority[(int)ThrottleOutPacketType.Wind] = 0;
MapCatsToPriority[(int)ThrottleOutPacketType.Cloud] = 0;
MapCatsToPriority[(int)ThrottleOutPacketType.Task] = 4;
MapCatsToPriority[(int)ThrottleOutPacketType.Texture] = 2;
MapCatsToPriority[(int)ThrottleOutPacketType.Asset] = 3;
MapCatsToPriority[(int)ThrottleOutPacketType.Transfer] = 5;
MapCatsToPriority[(int)ThrottleOutPacketType.State] = 5;
MapCatsToPriority[(int)ThrottleOutPacketType.AvatarInfo] = 6;
MapCatsToPriority[(int)ThrottleOutPacketType.OutBand] = 7;
// Default the retransmission timeout to one second
RTO = m_defaultRTO;
// Initialize this to a sane value to prevent early disconnects
TickLastPacketReceived = Environment.TickCount & Int32.MaxValue;
}
/// <summary>
/// Remove the rate requested by a child of this throttle. Pass the
/// changes up the hierarchy.
/// </summary>
public void UnregisterRequest(TokenBucket child)
{
m_children.Remove(child);
// m_totalDripRequest = m_children.Values.Sum();
m_totalDripRequest = 0;
foreach (KeyValuePair <TokenBucket, Int64> cref in m_children)
{
m_totalDripRequest += cref.Value;
}
// Pass the new values up to the parent
if (m_parent != null)
{
m_parent.RegisterRequest(this, Math.Min(RequestedDripRate, TotalDripRequest));
}
}
/// <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="remoteEndPoint">Remote endpoint for this connection</param>
/// <param name="defaultRTO">
/// Default retransmission timeout for unacked packets. The RTO will never drop
/// beyond this number.
/// </param>
/// <param name="maxRTO">
/// The maximum retransmission timeout for unacked packets. The RTO will never exceed this number.
/// </param>
public LLUDPClient(
LLUDPServer server, ThrottleRates rates, TokenBucket parentThrottle, uint circuitCode, UUID agentID,
IPEndPoint remoteEndPoint, int defaultRTO, int maxRTO)
{
AgentID = agentID;
RemoteEndPoint = remoteEndPoint;
CircuitCode = circuitCode;
m_udpServer = server;
if (defaultRTO != 0)
{
m_defaultRTO = defaultRTO;
}
if (maxRTO != 0)
{
m_maxRTO = maxRTO;
}
m_burstTime = rates.BurstTime;
m_maxRate = rates.ClientMaxRate;
// Create a token bucket throttle for this client that has the scene token bucket as a parent
m_throttleClient = new AdaptiveTokenBucket(parentThrottle, m_maxRate, m_maxRate * m_burstTime, rates.AdaptiveThrottlesEnabled);
// 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++)
{
ThrottleOutPacketType type = (ThrottleOutPacketType)i;
// Initialize the packet outboxes, where packets sit while they are waiting for tokens
m_packetOutboxes[i] = new DoubleLocklessQueue <OutgoingPacket>();
// Initialize the token buckets that control the throttling for each category
float rate = rates.GetRate(type);
float burst = rate * m_burstTime;
m_throttleCategories[i] = new TokenBucket(m_throttleClient, rate, burst);
}
m_RTO = m_defaultRTO;
// Initialize this to a sane value to prevent early disconnects
TickLastPacketReceived = Environment.TickCount & Int32.MaxValue;
m_pingMS = 20; // so filter doesnt start at 0;
}
/// <summary>
/// Register drip rate requested by a child of this throttle. Pass the
/// changes up the hierarchy.
/// </summary>
public void RegisterRequest(TokenBucket child, float request)
{
lock (m_children)
{
m_children[child] = request;
m_totalDripRequest = 0;
foreach (KeyValuePair <TokenBucket, float> cref in m_children)
{
m_totalDripRequest += cref.Value;
}
}
// Pass the new values up to the parent
if (m_parent != null)
{
m_parent.RegisterRequest(this, Math.Min(RequestedDripRate, TotalDripRequest));
}
}
/// <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="remoteEndPoint">Remote endpoint for this connection</param>
/// <param name="defaultRTO">
/// Default retransmission timeout for unacked packets. The RTO will never drop
/// beyond this number.
/// </param>
/// <param name="maxRTO">
/// The maximum retransmission timeout for unacked packets. The RTO will never exceed this number.
/// </param>
public LLUDPClient(
LLUDPServer server, ThrottleRates rates, TokenBucket parentThrottle, uint circuitCode, UUID agentID,
IPEndPoint remoteEndPoint, int defaultRTO, int maxRTO)
{
AgentID = agentID;
RemoteEndPoint = remoteEndPoint;
CircuitCode = circuitCode;
m_udpServer = server;
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_throttleClient = new AdaptiveTokenBucket(parentThrottle, rates.Total, rates.AdaptiveThrottlesEnabled);
// Create a token bucket throttle for the total categary with the client bucket as a throttle
m_throttleCategory = new TokenBucket(m_throttleClient, 0);
// Create an array of token buckets for this clients different throttle categories
m_throttleCategories = new TokenBucket[THROTTLE_CATEGORY_COUNT];
m_cannibalrate = rates.CannibalizeTextureRate;
for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++)
{
ThrottleOutPacketType type = (ThrottleOutPacketType)i;
// Initialize the packet outboxes, where packets sit while they are waiting for tokens
m_packetOutboxes[i] = new OpenSim.Framework.LocklessQueue <OutgoingPacket>();
// Initialize the token buckets that control the throttling for each category
m_throttleCategories[i] = new TokenBucket(m_throttleCategory, rates.GetRate(type));
}
// Default the retransmission timeout to one second
RTO = m_defaultRTO;
// Initialize this to a sane value to prevent early disconnects
TickLastPacketReceived = Environment.TickCount & Int32.MaxValue;
}
// <summary>
//
// </summary>
public AdaptiveTokenBucket(TokenBucket parent, float maxDripRate, float maxBurst, bool enabled)
: base(parent, maxDripRate, maxBurst)
{
m_enabled = enabled;
m_maxDripRate = (maxDripRate == 0 ? m_totalDripRequest : Math.Max(maxDripRate, m_minimumFlow));
if (enabled)
{
m_dripRate = m_maxDripRate * .5f;
}
else
{
m_dripRate = m_maxDripRate;
}
if (m_parent != null)
{
m_parent.RegisterRequest(this, m_dripRate);
}
}
/// <summary>
/// Queue an outgoing packet if appropriate.
/// </summary>
/// <param name="packet"></param>
/// <param name="forceQueue">Always queue the packet if at all possible.</param>
/// <returns>
/// true if the packet has been queued,
/// false if the packet has not been queued and should be sent immediately.
/// </returns>
public bool EnqueueOutgoing(OutgoingPacket packet, bool forceQueue)
{
int category = (int)packet.Category;
if (category >= 0 && category < m_packetOutboxes.Length)
{
ThreadedClasses.NonblockingQueue <OutgoingPacket> queue = m_packetOutboxes[category];
TokenBucket bucket = m_throttleCategories[category];
// Don't send this packet if there is already a packet waiting in the queue
// even if we have the tokens to send it, tokens should go to the already
// queued packets
if (queue.Count > 0)
{
queue.Enqueue(packet);
return(true);
}
if (!forceQueue && bucket.RemoveTokens(packet.Buffer.DataLength))
{
// Enough tokens were removed from the bucket, the packet will not be queued
return(false);
}
else
{
// Force queue specified or not enough tokens in the bucket, queue this packet
queue.Enqueue(packet);
return(true);
}
}
else
{
// We don't have a token bucket for this category, so it will not be queued
return(false);
}
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="identifier">Identifier for this token bucket</param>
/// <param name="parent">Parent bucket if this is a child bucket, or
/// null if this is a root bucket</param>
/// <param name="requestedDripRate">
/// Requested rate that the bucket fills, in bytes per
/// second. If zero, the bucket always remains full.
/// </param>
public TokenBucket(string identifier, TokenBucket parent, Int64 requestedDripRate, Int64 maxDripRate)
{
Identifier = identifier;
Parent = parent;
RequestedDripRate = requestedDripRate;
MaxDripRate = maxDripRate;
m_lastDrip = Util.EnvironmentTickCount();
}
/// <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>
/// Register drip rate requested by a child of this throttle. Pass the
/// changes up the hierarchy.
/// </summary>
public void RegisterRequest(TokenBucket child, Int64 request)
{
lock (m_children)
{
m_children[child] = request;
TotalDripRequest = 0;
foreach (KeyValuePair<TokenBucket, Int64> cref in m_children)
TotalDripRequest += cref.Value;
}
// Pass the new values up to the parent
if (Parent != null)
{
Int64 effectiveDripRate;
if (RequestedDripRate > 0)
effectiveDripRate = Math.Min(RequestedDripRate, TotalDripRequest);
else
effectiveDripRate = TotalDripRequest;
Parent.RegisterRequest(this, effectiveDripRate);
}
}
// <summary>
//
// </summary>
public AdaptiveTokenBucket(TokenBucket parent, Int64 maxDripRate, bool enabled) : base(parent,maxDripRate)
{
m_enabled = enabled;
if (m_enabled)
{
// m_log.DebugFormat("[TOKENBUCKET] Adaptive throttle enabled");
MaxDripRate = maxDripRate;
AdjustedDripRate = m_minimumFlow;
}
}
/// <summary>
/// Constructor for the AdaptiveTokenBucket class
/// <param name="identifier">Unique identifier for the client</param>
/// <param name="parent">Parent bucket in the hierarchy</param>
/// <param name="requestedDripRate"></param>
/// <param name="maxDripRate">The ceiling rate for adaptation</param>
/// <param name="minDripRate">The floor rate for adaptation</param>
/// </summary>
public AdaptiveTokenBucket(string identifier, TokenBucket parent, Int64 requestedDripRate, Int64 maxDripRate, Int64 minDripRate, bool enabled)
: base(identifier, parent, requestedDripRate, maxDripRate)
{
AdaptiveEnabled = enabled;
if (AdaptiveEnabled)
{
// m_log.DebugFormat("[TOKENBUCKET]: Adaptive throttle enabled");
m_minimumFlow = minDripRate;
TargetDripRate = m_minimumFlow;
AdjustedDripRate = m_minimumFlow;
}
}
/// <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, Int64 dripRate)
{
// m_identifier = m_counter++;
m_counter++;
Parent = parent;
RequestedDripRate = dripRate;
// TotalDripRequest = dripRate; // this will be overwritten when a child node registers
// MaxBurst = (Int64)((double)dripRate * m_quantumsPerBurst);
m_lastDrip = Util.EnvironmentTickCount();
}
/// <summary>
/// Remove the rate requested by a child of this throttle. Pass the
/// changes up the hierarchy.
/// </summary>
public void UnregisterRequest(TokenBucket child)
{
lock (m_children)
{
m_children.Remove(child);
// m_totalDripRequest = m_children.Values.Sum();
m_totalDripRequest = 0;
foreach (KeyValuePair<TokenBucket, Int64> cref in m_children)
m_totalDripRequest += cref.Value;
}
// Pass the new values up to the parent
if (m_parent != null)
m_parent.RegisterRequest(this,Math.Min(RequestedDripRate, TotalDripRequest));
}
public void SetThrottles(byte[] throttleData)
{
byte[] adjData;
int pos = 0;
if (!BitConverter.IsLittleEndian)
{
byte[] newData = new byte[7 * 4];
Buffer.BlockCopy(throttleData, 0, newData, 0, 7 * 4);
for (int i = 0; i < 7; i++)
{
Array.Reverse(newData, i * 4, 4);
}
adjData = newData;
}
else
{
adjData = throttleData;
}
// 0.125f converts from bits to bytes
int resend = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int land = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int wind = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int cloud = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int task = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int texture = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
pos += 4;
int asset = (int)(BitConverter.ToSingle(adjData, pos) * 0.125f);
int total = resend + land + wind + cloud + task + texture + asset;
// These are subcategories of task that we allocate a percentage to
int state = (int)(task * STATE_TASK_PERCENTAGE);
task -= state;
int transfer = (int)(asset * TRANSFER_ASSET_PERCENTAGE);
asset -= transfer;
// avatar info cames out from state
int avatarinfo = (int)(state * AVATAR_INFO_STATE_PERCENTAGE);
state -= avatarinfo;
// int total = resend + land + wind + cloud + task + texture + asset + state + avatarinfo;
// Make sure none of the throttles are set below our packet MTU,
// otherwise a throttle could become permanently clogged
Rates[(int)ThrottleOutPacketType.Resend] = resend;
Rates[(int)ThrottleOutPacketType.Land] = land;
Rates[(int)ThrottleOutPacketType.Wind] = wind;
Rates[(int)ThrottleOutPacketType.Cloud] = cloud;
Rates[(int)ThrottleOutPacketType.Task] = task + state + avatarinfo;
Rates[(int)ThrottleOutPacketType.Texture] = texture;
Rates[(int)ThrottleOutPacketType.Asset] = asset + transfer;
Rates[(int)ThrottleOutPacketType.State] = state;
TotalRateRequested = total;
TotalRateMin = (int)(total * 0.1);
if (TotalRateMin < MINPERCLIENTRATE)
{
TotalRateMin = MINPERCLIENTRATE;
}
total = TotalRateMin; // let it grow slowlly
//MainConsole.Instance.WarnFormat("[LLUDPCLIENT]: {0} is setting throttles. Resend={1}, Land={2}, Wind={3}, Cloud={4}, Task={5}, Texture={6}, Asset={7}, State={8}, AvatarInfo={9}, Transfer={10}, TaskFull={11}, Total={12}",
// AgentID, resend, land, wind, cloud, task, texture, asset, state, avatarinfo, transfer, task + state + avatarinfo, total);
// Update the token buckets with new throttle values
TokenBucket bucket = m_throttle;
bucket.DripRate = total;
bucket.MaxBurst = total;
// Reset the packed throttles cached data
m_packedThrottles = null;
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="identifier">Identifier for this token bucket</param>
/// <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, float dripRate, float MaxBurst)
{
m_counter++;
Parent = parent;
RequestedDripRate = dripRate;
RequestedBurst = MaxBurst;
// TotalDripRequest = dripRate; // this will be overwritten when a child node registers
// MaxBurst = (Int64)((double)dripRate * m_quantumsPerBurst);
m_lastDrip = Util.EnvironmentTickCount() + 100000;
}
