1 files changed, 134 insertions, 0 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Types/UpdateQueue.cs b/OpenSim/Region/Framework/Scenes/Types/UpdateQueue.cs
new file mode 100644
index 0000000..452ada9
--- /dev/null
+++ b/OpenSim/Region/Framework/Scenes/Types/UpdateQueue.cs
@@ -0,0 +1,134 @@
+/*
+ * 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 OpenSim 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;
+using System.Runtime.Serialization;
+using System.Security.Permissions;
+using OpenMetaverse;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.Framework.Scenes.Types
+{
+    [Serializable]
+    public class UpdateQueue : ISerializable
+    {
+        private Queue<SceneObjectPart> m_queue;
+
+        private List<UUID> m_ids;
+
+        private object m_syncObject = new object();
+
+        public int Count
+        {
+            get { return m_queue.Count; }
+        }
+
+        public UpdateQueue()
+        {
+            m_queue = new Queue<SceneObjectPart>();
+            m_ids = new List<UUID>();
+        }
+
+        public void Clear()
+        {
+            lock (m_syncObject)
+            {
+                m_ids.Clear();
+                m_queue.Clear();
+            }
+        }
+
+        public void Enqueue(SceneObjectPart part)
+        {
+            lock (m_syncObject)
+            {
+                if (!m_ids.Contains(part.UUID))
+                {
+                    m_ids.Add(part.UUID);
+                    m_queue.Enqueue(part);
+                }
+            }
+        }
+
+        public SceneObjectPart Dequeue()
+        {
+            SceneObjectPart part = null;
+            lock (m_syncObject)
+            {
+                if (m_queue.Count > 0)
+                {
+                    part = m_queue.Dequeue();
+                    m_ids.Remove(part.UUID);
+                }
+            }
+
+            return part;
+        }
+
+        protected UpdateQueue(SerializationInfo info, StreamingContext context)
+        {
+            //System.Console.WriteLine("UpdateQueue Deserialize BGN");
+
+            if (info == null)
+            {
+                throw new ArgumentNullException("info");
+            }
+
+            m_queue = (Queue<SceneObjectPart>)info.GetValue("m_queue", typeof(Queue<SceneObjectPart>));
+            List<Guid> ids_work = (List<Guid>)info.GetValue("m_ids", typeof(List<Guid>));
+
+            foreach (Guid guid in ids_work)
+            {
+                m_ids.Add(new UUID(guid));
+            }
+
+            //System.Console.WriteLine("UpdateQueue Deserialize END");
+        }
+
+        [SecurityPermission(SecurityAction.LinkDemand,
+            Flags = SecurityPermissionFlag.SerializationFormatter)]
+        public virtual void GetObjectData(
+                        SerializationInfo info, StreamingContext context)
+        {
+            if (info == null)
+            {
+                throw new ArgumentNullException("info");
+            }
+
+            List<Guid> ids_work = new List<Guid>();
+
+            foreach (UUID uuid in m_ids)
+            {
+                ids_work.Add(uuid.Guid);
+            }
+
+            info.AddValue("m_queue", m_queue);
+            info.AddValue("m_ids", ids_work);
+        }
+    }
+}