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-rw-r--r--OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs66
1 files changed, 27 insertions, 39 deletions
diff --git a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs
index bdbd284..91e3d20 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs
@@ -133,7 +133,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
133 this.parent = parent; 133 this.parent = parent;
134 MaxBurst = maxBurst; 134 MaxBurst = maxBurst;
135 DripRate = dripRate; 135 DripRate = dripRate;
136 lastDrip = Environment.TickCount & Int32.MaxValue; 136 lastDrip = Environment.TickCount;
137 } 137 }
138 138
139 /// <summary> 139 /// <summary>
@@ -144,40 +144,30 @@ namespace OpenSim.Region.ClientStack.LindenUDP
144 /// the bucket, otherwise false</returns> 144 /// the bucket, otherwise false</returns>
145 public bool RemoveTokens(int amount) 145 public bool RemoveTokens(int amount)
146 { 146 {
147 bool dummy;
148 return RemoveTokens(amount, out dummy);
149 }
150
151 /// <summary>
152 /// Remove a given number of tokens from the bucket
153 /// </summary>
154 /// <param name="amount">Number of tokens to remove from the bucket</param>
155 /// <param name="dripSucceeded">True if tokens were added to the bucket
156 /// during this call, otherwise false</param>
157 /// <returns>True if the requested number of tokens were removed from
158 /// the bucket, otherwise false</returns>
159 public bool RemoveTokens(int amount, out bool dripSucceeded)
160 {
161 if (maxBurst == 0) 147 if (maxBurst == 0)
162 { 148 {
163 dripSucceeded = true;
164 return true; 149 return true;
165 } 150 }
166 151
167 dripSucceeded = Drip(); 152 if (amount > maxBurst)
168
169 if (content - amount >= 0)
170 { 153 {
171 if (parent != null && !parent.RemoveTokens(amount)) 154 throw new Exception("amount " + amount + " exceeds maxBurst " + maxBurst);
172 return false; 155 }
173 156
174 content -= amount; 157 Drip();
175 return true; 158
159 if (content < amount)
160 {
161 return false;
176 } 162 }
177 else 163
164 if (parent != null && !parent.RemoveTokens(amount))
178 { 165 {
179 return false; 166 return false;
180 } 167 }
168
169 content -= amount;
170 return true;
181 } 171 }
182 172
183 /// <summary> 173 /// <summary>
@@ -193,25 +183,23 @@ namespace OpenSim.Region.ClientStack.LindenUDP
193 content = maxBurst; 183 content = maxBurst;
194 return true; 184 return true;
195 } 185 }
196 else
197 {
198 int now = Environment.TickCount & Int32.MaxValue;
199 int deltaMS = now - lastDrip;
200 186
201 if (deltaMS <= 0) 187 int now = Environment.TickCount;
202 { 188 int deltaMS = now - lastDrip;
203 if (deltaMS < 0) 189 lastDrip = now;
204 lastDrip = now;
205 return false;
206 }
207 190
208 int dripAmount = deltaMS * tokensPerMS; 191 if (deltaMS <= 0)
209 192 {
210 content = Math.Min(content + dripAmount, maxBurst); 193 return false;
211 lastDrip = now; 194 }
212 195
213 return true; 196 long dripAmount = (long)deltaMS * (long)tokensPerMS + (long)content;
197 if (dripAmount > maxBurst)
198 {
199 dripAmount = maxBurst;
214 } 200 }
201 content = (int)dripAmount;
202 return true;
215 } 203 }
216 } 204 }
217} 205}