1 files changed, 73 insertions, 0 deletions

diff --git a/OpenSim/Region/PhysicsModules/SharedBase/CollisionLocker.cs b/OpenSim/Region/PhysicsModules/SharedBase/CollisionLocker.cs
new file mode 100644
index 0000000..6e658b5
--- /dev/null
+++ b/OpenSim/Region/PhysicsModules/SharedBase/CollisionLocker.cs
@@ -0,0 +1,73 @@
+/*
+ * 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 System.Collections.Generic;
+
+namespace OpenSim.Region.PhysicsModules.SharedBase
+{
+    public class CollisionLocker
+    {
+        private List<IntPtr> worldlock = new List<IntPtr>();
+
+        public CollisionLocker()
+        {
+
+        }
+
+        public void dlock(IntPtr world)
+        {
+            lock (worldlock)
+            {
+                worldlock.Add(world);
+            }
+
+        }
+
+        public void dunlock(IntPtr world)
+        {
+            lock (worldlock)
+            {
+                worldlock.Remove(world);
+            }
+        }
+
+        public bool lockquery()
+        {
+            return (worldlock.Count > 0);
+        }
+
+        public void drelease(IntPtr world)
+        {
+            lock (worldlock)
+            {
+                if (worldlock.Contains(world))
+                    worldlock.Remove(world);
+            }
+        }
+    }
+}