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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using OpenSim.Framework;
using Nini.Config;
namespace OpenSim.Region.ClientStack.LindenUDP
{
/// <summary>
/// Holds drip rates and maximum burst rates for throttling with hierarchical
/// token buckets. The maximum burst rates set here are hard limits and can
/// not be overridden by client requests
/// </summary>
public sealed class ThrottleRates
{
/// <summary>Drip rate for resent packets</summary>
public int Resend;
/// <summary>Drip rate for terrain packets</summary>
public int Land;
/// <summary>Drip rate for wind packets</summary>
public int Wind;
/// <summary>Drip rate for cloud packets</summary>
public int Cloud;
/// <summary>Drip rate for task packets</summary>
public int Task;
/// <summary>Drip rate for texture packets</summary>
public int Texture;
/// <summary>Drip rate for asset packets</summary>
public int Asset;
/// <summary>Drip rate for the parent token bucket</summary>
public int Total;
/// <summary>Flag used to enable adaptive throttles</summary>
public bool AdaptiveThrottlesEnabled;
/// <summary>
/// Set the minimum rate that the adaptive throttles can set. The viewer
/// can still throttle lower than this, but the adaptive throttles will
/// never decrease rates below this no matter how many packets are dropped
/// </summary>
public Int64 MinimumAdaptiveThrottleRate;
/// <summary>Amount of the texture throttle to steal for the task throttle</summary>
public double CannibalizeTextureRate;
public int ClientMaxRate;
public float BrustTime;
/// <summary>
/// Default constructor
/// </summary>
/// <param name="config">Config source to load defaults from</param>
public ThrottleRates(IConfigSource config)
{
try
{
IConfig throttleConfig = config.Configs["ClientStack.LindenUDP"];
// Current default total is 66750
Resend = throttleConfig.GetInt("resend_default", 6625);
Land = throttleConfig.GetInt("land_default", 9125);
Wind = throttleConfig.GetInt("wind_default", 1750);
Cloud = throttleConfig.GetInt("cloud_default", 1750);
Task = throttleConfig.GetInt("task_default", 18500);
Texture = throttleConfig.GetInt("texture_default", 18500);
Asset = throttleConfig.GetInt("asset_default", 10500);
Total = Resend + Land + Wind + Cloud + Task + Texture + Asset;
// 5120000 bps default max
ClientMaxRate = throttleConfig.GetInt("client_throttle_max_bps", 640000);
if (ClientMaxRate > 1000000)
ClientMaxRate = 1000000; // no more than 8Mbps
BrustTime = (float)throttleConfig.GetInt("client_throttle_burtsTimeMS", 10);
BrustTime *= 1e-3f;
// Adaptive is broken
// AdaptiveThrottlesEnabled = throttleConfig.GetBoolean("enable_adaptive_throttles", false);
AdaptiveThrottlesEnabled = false;
MinimumAdaptiveThrottleRate = throttleConfig.GetInt("adaptive_throttle_min_bps", 32000);
// http textures do use udp bandwidth setting
// CannibalizeTextureRate = (double)throttleConfig.GetFloat("CannibalizeTextureRate", 0.0f);
// CannibalizeTextureRate = Util.Clamp<double>(CannibalizeTextureRate,0.0, 0.9);
CannibalizeTextureRate = 0f;
}
catch (Exception) { }
}
public int GetRate(ThrottleOutPacketType type)
{
switch (type)
{
case ThrottleOutPacketType.Resend:
return Resend;
case ThrottleOutPacketType.Land:
return Land;
case ThrottleOutPacketType.Wind:
return Wind;
case ThrottleOutPacketType.Cloud:
return Cloud;
case ThrottleOutPacketType.Task:
return Task;
case ThrottleOutPacketType.Texture:
return Texture;
case ThrottleOutPacketType.Asset:
return Asset;
case ThrottleOutPacketType.Unknown:
default:
return 0;
}
}
}
}
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