1 files changed, 111 insertions, 0 deletions

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/ThrottleRates.cs b/OpenSim/Region/ClientStack/Linden/UDP/ThrottleRates.cs
new file mode 100644
index 0000000..c9aac0b
--- /dev/null
+++ b/OpenSim/Region/ClientStack/Linden/UDP/ThrottleRates.cs
@@ -0,0 +1,111 @@
+/*
+ * 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>
+        /// Default constructor
+        /// </summary>
+        /// <param name="config">Config source to load defaults from</param>
+        public ThrottleRates(IConfigSource config)
+        {
+            try
+            {
+                IConfig throttleConfig = config.Configs["ClientStack.LindenUDP"];
+
+                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 = throttleConfig.GetInt("client_throttle_max_bps", 0);
+
+                AdaptiveThrottlesEnabled = throttleConfig.GetBoolean("enable_adaptive_throttles", false);
+            }
+            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;
+            }
+        }
+    }
+}