clear userAgent state on client shutdown, which fixes the issue

where you could only login once with a given id in standalone mode.

OpenSim/Framework/Communications/IUserServices.cs

@@ -35,6 +35,7 @@ namespace OpenSim.Framework.Communications
         UserProfileData GetUserProfile(string firstName, string lastName);
         UserProfileData GetUserProfile(string name);
         UserProfileData GetUserProfile(LLUUID avatarID);
+        void clearUserAgent(LLUUID avatarID);
 
         UserProfileData SetupMasterUser(string firstName, string lastName);
         UserProfileData SetupMasterUser(string firstName, string lastName, string password);

OpenSim/Framework/Data.DB4o/DB4oManager.cs

@@ -129,26 +129,31 @@ namespace OpenSim.Framework.Data.DB4o
         }
 
         /// <summary>
-        /// Adds a new profile to the database (Warning: Probably slow.)
+        /// Adds or updates a record to the user database.  Do this when changes are needed
+        /// in the user profile that need to be persistant.
+        /// 
+        /// TODO: the logic here is not ACID, the local cache will be
+        /// updated even if the persistant data is not.  This may lead
+        /// to unexpected results.
         /// </summary>
-        /// <param name="row">The profile to add</param>
+        /// <param name="record">The profile to update</param>
-        /// <returns>Successful?</returns>
+        /// <returns>true on success, false on fail to persist to db</returns>
-        public bool AddRow(UserProfileData row)
+        public bool UpdateRecord(UserProfileData record)
         { 
-            if (userProfiles.ContainsKey(row.UUID))
+            if (userProfiles.ContainsKey(record.UUID))
             {
-                userProfiles[row.UUID] = row;
+                userProfiles[record.UUID] = record;
             }
             else
             {
-                userProfiles.Add(row.UUID, row);
+                userProfiles.Add(record.UUID, record);
             }
 
             try
             {
                 IObjectContainer database;
                 database = Db4oFactory.OpenFile(dbfl);
-                database.Set(row);
+                database.Set(record);
                 database.Close();
                 return true;
             }
@@ -157,7 +162,5 @@ namespace OpenSim.Framework.Data.DB4o
                 return false;
             }
         }
-
-
     }
 }

OpenSim/Framework/Data.DB4o/DB4oUserData.cs

@@ -139,13 +139,30 @@ namespace OpenSim.Framework.Data.DB4o
         {
             try
             {
-                manager.AddRow(user);
+                manager.UpdateRecord(user);
             }
             catch (Exception e)
             {
                 Console.WriteLine(e.ToString());
             }
         }
+      
+        /// <summary>
+        /// Creates a new user profile
+        /// </summary>
+        /// <param name="user">The profile to add to the database</param>
+        /// <returns>True on success, false on error</returns>
+        public bool updateUserProfile(UserProfileData user)
+        {
+            try {
+                return manager.UpdateRecord(user);
+            } catch (Exception e) {
+                Console.WriteLine(e.ToString());
+                return false;
+            }
+        }
+
+      
 
         /// <summary>
         /// Creates a new user agent

OpenSim/Framework/Data.MySQL/MySQLUserData.cs

@@ -224,6 +224,13 @@ namespace OpenSim.Framework.Data.MySQL
         {
             // Do nothing.
         }
+        
+        
+        public bool updateUserProfile(UserProfileData user)
+        {
+            return true;
+            // TODO: implement
+        }
 
         /// <summary>
         /// Performs a money transfer request between two accounts

OpenSim/Framework/Data/UserData.cs

@@ -84,6 +84,12 @@ namespace OpenSim.Framework.Data
         /// <param name="user">UserProfile to add</param>
         void addNewUserProfile(UserProfileData user);
 
+        /// <summary>
+        ///  Updates an existing user profile
+        /// </summary>
+        /// <param name="user">UserProfile to update</param>
+        bool updateUserProfile(UserProfileData user);
+
         /// <summary>
         /// Adds a new agent to the database
         /// </summary>

OpenSim/Framework/UserManager/UserManagerBase.cs

@@ -155,6 +155,28 @@ namespace OpenSim.Framework.UserManagement
 
             return null;
         }
+
+        /// <summary>
+        /// Set's user profile from object
+        /// </summary>
+        /// <param name="fname">First name</param>
+        /// <param name="lname">Last name</param>
+        /// <returns>A user profile</returns>
+        public bool setUserProfile(UserProfileData data)
+        {
+            foreach (KeyValuePair<string, IUserData> plugin in _plugins)
+            {
+                try {
+                    plugin.Value.updateUserProfile(data);
+                    return true;
+                } catch (Exception e) {
+                    MainLog.Instance.Verbose( "Unable to set user via " + plugin.Key + "(" + e.ToString() + ")");
+                }
+            }
+            
+            return false;
+        }
+
         #endregion
 
         #region Get UserAgent
@@ -202,6 +224,15 @@ namespace OpenSim.Framework.UserManagement
             return null;
         }
 
+        // TODO: document
+        public void clearUserAgent(LLUUID agentID)
+        {
+            UserProfileData profile = getUserProfile(agentID);
+            profile.currentAgent = null;
+            setUserProfile(profile);
+        }
+
+
         /// <summary>
         /// Loads a user agent by name (not called directly)
         /// </summary>

OpenSim/Region/Communications/OGS1/OGS1UserServices.cs

@@ -86,6 +86,11 @@ namespace OpenSim.Region.Communications.OGS1
             return null;
         }
 
+        public void clearUserAgent(LLUUID avatarID) 
+        {
+            // TODO: implement
+        }
+
         public UserProfileData SetupMasterUser(string firstName, string lastName)
         {
             return SetupMasterUser(firstName, lastName, "");

OpenSim/Region/Environment/Scenes/Scene.cs

@@ -674,7 +674,9 @@ namespace OpenSim.Region.Environment.Scenes
                 }
             }
             // TODO: Add the removal from physics ?
-
+            
+            // Remove client agent from profile, so new logins will work
+            commsManager.UserServer.clearUserAgent(agentID);
 
             return;
         }