3 files changed, 336 insertions, 71 deletions

diff --git a/OpenSim/Services/GridService/GridService.cs b/OpenSim/Services/GridService/GridService.cs
index 6f610f8..8293c18 100644
--- a/OpenSim/Services/GridService/GridService.cs
+++ b/OpenSim/Services/GridService/GridService.cs
@@ -46,6 +46,7 @@ namespace OpenSim.Services.GridService
         private static readonly ILog m_log =
                 LogManager.GetLogger(
                 MethodBase.GetCurrentMethod().DeclaringType);
+        private string LogHeader = "[GRID SERVICE]";
 
         private bool m_DeleteOnUnregister = true;
         private static GridService m_RootInstance = null;
@@ -56,7 +57,13 @@ namespace OpenSim.Services.GridService
         protected bool m_AllowDuplicateNames = false;
         protected bool m_AllowHypergridMapSearch = false;
 
+<<<<<<< HEAD
+        protected bool m_SuppressVarregionOverlapCheckOnRegistration = false;
+
+        private static Dictionary<string,object> m_ExtraFeatures = new Dictionary<string, object>();
+=======
         private static Dictionary<string, object> m_ExtraFeatures = new Dictionary<string, object>();
+>>>>>>> avn/ubitvar
 
         public GridService(IConfigSource config)
             : base(config)
@@ -65,6 +72,9 @@ namespace OpenSim.Services.GridService
 
             m_config = config;
             IConfig gridConfig = config.Configs["GridService"];
+
+            bool suppressConsoleCommands = false;
+
             if (gridConfig != null)
             {
                 m_DeleteOnUnregister = gridConfig.GetBoolean("DeleteOnUnregister", true);
@@ -78,13 +88,19 @@ namespace OpenSim.Services.GridService
                 }
                 m_AllowDuplicateNames = gridConfig.GetBoolean("AllowDuplicateNames", m_AllowDuplicateNames);
                 m_AllowHypergridMapSearch = gridConfig.GetBoolean("AllowHypergridMapSearch", m_AllowHypergridMapSearch);
+
+                m_SuppressVarregionOverlapCheckOnRegistration = gridConfig.GetBoolean("SuppressVarregionOverlapCheckOnRegistration", m_SuppressVarregionOverlapCheckOnRegistration);
+
+                // This service is also used locally by a simulator running in grid mode.  This switches prevents
+                // inappropriate console commands from being registered
+                suppressConsoleCommands = gridConfig.GetBoolean("SuppressConsoleCommands", suppressConsoleCommands);
             }
-            
+
             if (m_RootInstance == null)
             {
                 m_RootInstance = this;
 
-                if (MainConsole.Instance != null)
+                if (!suppressConsoleCommands && MainConsole.Instance != null)
                 {
                     MainConsole.Instance.Commands.AddCommand("Regions", true,
                             "deregister region id",
@@ -93,17 +109,12 @@ namespace OpenSim.Services.GridService
                             String.Empty,
                             HandleDeregisterRegion);
 
-                    // A messy way of stopping this command being added if we are in standalone (since the simulator
-                    // has an identically named command
-                    //
-                    // XXX: We're relying on the OpenSimulator version being registered first, which is not well defined.
-                    if (MainConsole.Instance.Commands.Resolve(new string[] { "show", "regions" }).Length == 0)
-                        MainConsole.Instance.Commands.AddCommand("Regions", true,
-                                "show regions",
-                                "show regions",
-                                "Show details on all regions",
-                                String.Empty,
-                                HandleShowRegions);
+                    MainConsole.Instance.Commands.AddCommand("Regions", true,
+                            "show regions",
+                            "show regions",
+                            "Show details on all regions",
+                            String.Empty,
+                            HandleShowRegions);
 
                     MainConsole.Instance.Commands.AddCommand("Regions", true,
                             "show region name",
@@ -119,13 +130,24 @@ namespace OpenSim.Services.GridService
                             "For example, show region at 1000 1000",
                             HandleShowRegionAt);
 
-                    MainConsole.Instance.Commands.AddCommand("Regions", true,
-                            "set region flags",
-                            "set region flags <Region name> <flags>",
-                            "Set database flags for region",
+                    MainConsole.Instance.Commands.AddCommand("General", true,
+                            "show grid size",
+                            "show grid size",
+                            "Show the current grid size (excluding hyperlink references)",
                             String.Empty,
-                            HandleSetFlags);
+                            HandleShowGridSize);
+
+                    MainConsole.Instance.Commands.AddCommand("Regions", true,
+                             "set region flags",
+                             "set region flags <Region name> <flags>",
+                             "Set database flags for region",
+                             String.Empty,
+                             HandleSetFlags);
                 }
+
+                if (!suppressConsoleCommands)
+                    SetExtraServiceURLs(config);
+
                 m_HypergridLinker = new HypergridLinker(m_config, this, m_Database);
             }
         }
@@ -137,9 +159,15 @@ namespace OpenSim.Services.GridService
 
             if (loginConfig == null || gridConfig == null)
                 return;
+<<<<<<< HEAD
+            
+            string configVal;
+            
+=======
 
             string configVal;
 
+>>>>>>> avn/ubitvar
             configVal = loginConfig.GetString("SearchURL", string.Empty);
             if (!string.IsNullOrEmpty(configVal))
                 m_ExtraFeatures["search-server-url"] = configVal;
@@ -183,14 +211,26 @@ namespace OpenSim.Services.GridService
             if (regionInfos.RegionID == UUID.Zero)
                 return "Invalid RegionID - cannot be zero UUID";
 
+<<<<<<< HEAD
+            String reason = "Region overlaps another region";
+            RegionData region = FindAnyConflictingRegion(regionInfos, scopeID, out reason);
+            // If there is a conflicting region, if it has the same ID and same coordinates
+            //    then it is a region re-registering (permissions and ownership checked later).
+            if ((region != null) 
+                && ( (region.coordX != regionInfos.RegionCoordX)
+                    || (region.coordY != regionInfos.RegionCoordY)
+                    || (region.RegionID != regionInfos.RegionID) )
+                )
+=======
             // we should not need to check for overlaps
 
             RegionData region = m_Database.Get(regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
             if ((region != null) && (region.RegionID != regionInfos.RegionID))
+>>>>>>> avn/ubitvar
             {
-                m_log.WarnFormat("[GRID SERVICE]: Region {0} tried to register in coordinates {1}, {2} which are already in use in scope {3}.", 
-                    regionInfos.RegionID, regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
-                return "Region overlaps another region";
+                // If not same ID and same coordinates, this new region has conflicts and can't be registered.
+                m_log.WarnFormat("{0} Register region conflict in scope {1}. {2}", LogHeader, scopeID, reason);
+                return reason;
             }
 
             if (region != null)
@@ -313,13 +353,121 @@ namespace OpenSim.Services.GridService
                 m_log.DebugFormat("[GRID SERVICE]: Database exception: {0}", e);
             }
 
-            m_log.DebugFormat("[GRID SERVICE]: Region {0} ({1}) registered successfully at {2}-{3} with flags {4}", 
-                regionInfos.RegionName, regionInfos.RegionID, regionInfos.RegionCoordX, regionInfos.RegionCoordY, 
+            m_log.DebugFormat
+                ("[GRID SERVICE]: Region {0} ({1}, {2}x{3}) registered at {4},{5} with flags {6}", 
+                regionInfos.RegionName, regionInfos.RegionID, regionInfos.RegionSizeX, regionInfos.RegionSizeY, 
+                regionInfos.RegionCoordX, regionInfos.RegionCoordY, 
                 (OpenSim.Framework.RegionFlags)flags);
 
             return String.Empty;
         }
 
+        /// <summary>
+        /// Search the region map for regions conflicting with this region.
+        /// The region to be added is passed and we look for any existing regions that are
+        /// in the requested location, that are large varregions that overlap this region, or
+        /// are previously defined regions that would lie under this new region.
+        /// </summary>
+        /// <param name="regionInfos">Information on region requested to be added to the world map</param>
+        /// <param name="scopeID">Grid id for region</param>
+        /// <param name="reason">The reason the returned region conflicts with passed region</param>
+        /// <returns></returns>
+        private RegionData FindAnyConflictingRegion(GridRegion regionInfos, UUID scopeID, out string reason)
+        {
+            reason = "Reregistration";
+            // First see if there is an existing region right where this region is trying to go
+            // (We keep this result so it can be returned if suppressing errors)
+            RegionData noErrorRegion = m_Database.Get(regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
+            RegionData region = noErrorRegion;
+            if (region != null
+                && region.RegionID == regionInfos.RegionID
+                && region.sizeX == regionInfos.RegionSizeX
+                && region.sizeY == regionInfos.RegionSizeY)
+            {
+                // If this seems to be exactly the same region, return this as it could be
+                //     a re-registration (permissions checked by calling routine).
+                m_log.DebugFormat("{0} FindAnyConflictingRegion: re-register of {1}",
+                                        LogHeader, RegionString(regionInfos));
+                return region;
+            }
+
+            // No region exactly there or we're resizing an existing region.
+            // Fetch regions that could be varregions overlapping requested location.
+            int xmin = regionInfos.RegionLocX - (int)Constants.MaximumRegionSize + 10;
+            int xmax = regionInfos.RegionLocX;
+            int ymin = regionInfos.RegionLocY - (int)Constants.MaximumRegionSize + 10;
+            int ymax = regionInfos.RegionLocY;
+            List<RegionData> rdatas = m_Database.Get(xmin, ymin, xmax, ymax, scopeID);
+            foreach (RegionData rdata in rdatas)
+            {
+                // m_log.DebugFormat("{0} FindAnyConflictingRegion: find existing. Checking {1}", LogHeader, RegionString(rdata) );
+                if ( (rdata.posX + rdata.sizeX > regionInfos.RegionLocX)
+                    && (rdata.posY + rdata.sizeY > regionInfos.RegionLocY) )
+                {
+                    region = rdata;
+                    m_log.WarnFormat("{0} FindAnyConflictingRegion: conflict of {1} by existing varregion {2}",
+                                LogHeader, RegionString(regionInfos), RegionString(region));
+                    reason = String.Format("Region location is overlapped by existing varregion {0}",
+                                                RegionString(region));
+
+                    if (m_SuppressVarregionOverlapCheckOnRegistration)
+                        region = noErrorRegion;
+                    return region;
+                }
+            }
+
+            // There isn't a region that overlaps this potential region.
+            // See if this potential region overlaps an existing region.
+            // First, a shortcut of not looking for overlap if new region is legacy region sized
+            //     and connot overlap anything.
+            if (regionInfos.RegionSizeX != Constants.RegionSize
+                || regionInfos.RegionSizeY != Constants.RegionSize)
+            {
+                // trim range looked for so we don't pick up neighbor regions just off the edges
+                xmin = regionInfos.RegionLocX;
+                xmax = regionInfos.RegionLocX + regionInfos.RegionSizeX - 10;
+                ymin = regionInfos.RegionLocY;
+                ymax = regionInfos.RegionLocY + regionInfos.RegionSizeY - 10;
+                rdatas = m_Database.Get(xmin, ymin, xmax, ymax, scopeID);
+
+                // If the region is being resized, the found region could be ourself.
+                foreach (RegionData rdata in rdatas)
+                {
+                    // m_log.DebugFormat("{0} FindAnyConflictingRegion: see if overlap. Checking {1}", LogHeader, RegionString(rdata) );
+                    if (region == null || region.RegionID != regionInfos.RegionID)
+                    {
+                        region = rdata;
+                        m_log.WarnFormat("{0} FindAnyConflictingRegion: conflict of varregion {1} overlaps existing region {2}",
+                                LogHeader, RegionString(regionInfos), RegionString(region));
+                        reason = String.Format("Region {0} would overlap existing region {1}",
+                                        RegionString(regionInfos), RegionString(region));
+
+                        if (m_SuppressVarregionOverlapCheckOnRegistration)
+                            region = noErrorRegion;
+                        return region;
+                    }
+                }
+            }
+
+            // If we get here, region is either null (nothing found here) or
+            //     is the non-conflicting region found at the location being requested.
+            return region;
+        }
+
+        // String describing name and region location of passed region
+        private String RegionString(RegionData reg)
+        {
+            return String.Format("{0}/{1} at <{2},{3}>",
+                reg.RegionName, reg.RegionID, reg.coordX, reg.coordY);
+        }
+
+        // String describing name and region location of passed region
+        private String RegionString(GridRegion reg)
+        {
+            return String.Format("{0}/{1} at <{2},{3}>",
+                reg.RegionName, reg.RegionID, reg.RegionCoordX, reg.RegionCoordY);
+        }
+
         public bool DeregisterRegion(UUID regionID)
         {
             RegionData region = m_Database.Get(regionID, UUID.Zero);
@@ -360,7 +508,11 @@ namespace OpenSim.Services.GridService
             if (region != null)
             {
                 // Not really? Maybe?
+<<<<<<< HEAD
+                // The adjacent regions are presumed to be the same size as the current region
+=======
 /* this fails wiht var regions. My_sql db should now handle var regions
+>>>>>>> avn/ubitvar
                 List<RegionData> rdatas = m_Database.Get(
                     region.posX - region.sizeX - 1, region.posY - region.sizeY - 1, 
                     region.posX + region.sizeX + 1, region.posY + region.sizeY + 1, scopeID);
@@ -380,7 +532,11 @@ namespace OpenSim.Services.GridService
                     }
                 }
 
-//                m_log.DebugFormat("[GRID SERVICE]: region {0} has {1} neighbours", region.RegionName, rinfos.Count);
+                // string rNames = "";
+                // foreach (GridRegion gr in rinfos)
+                //     rNames += gr.RegionName + ",";
+                // m_log.DebugFormat("{0} region {1} has {2} neighbours ({3})",
+                //             LogHeader, region.RegionName, rinfos.Count, rNames);
             }
             else
             {
@@ -409,13 +565,24 @@ namespace OpenSim.Services.GridService
         
         public GridRegion GetRegionByPosition(UUID scopeID, int x, int y)
         {
-            int snapX = (int)(x / Constants.RegionSize) * (int)Constants.RegionSize;
-            int snapY = (int)(y / Constants.RegionSize) * (int)Constants.RegionSize;
+            uint regionX = Util.WorldToRegionLoc((uint)x);
+            uint regionY = Util.WorldToRegionLoc((uint)y);
+            int snapX = (int)Util.RegionToWorldLoc(regionX);
+            int snapY = (int)Util.RegionToWorldLoc(regionY);
+
             RegionData rdata = m_Database.Get(snapX, snapY, scopeID);
             if (rdata != null)
+            {
+                m_log.DebugFormat("{0} GetRegionByPosition. Found region {1} in database. Pos=<{2},{3}>",
+                                 LogHeader, rdata.RegionName, regionX, regionY);
                 return RegionData2RegionInfo(rdata);
-
-            return null;
+            }
+            else
+            {
+                m_log.DebugFormat("{0} GetRegionByPosition. Did not find region in database. Pos=<{1},{2}>",
+                                 LogHeader, regionX, regionY);
+                return null;
+            }
         }
 
         public GridRegion GetRegionByName(UUID scopeID, string name)
@@ -668,6 +835,27 @@ namespace OpenSim.Services.GridService
             OutputRegionsToConsoleSummary(regions);
         }
 
+        private void HandleShowGridSize(string module, string[] cmd)
+        {
+            List<RegionData> regions = m_Database.Get(int.MinValue, int.MinValue, int.MaxValue, int.MaxValue, UUID.Zero);
+
+            double size = 0;
+
+            foreach (RegionData region in regions)
+            {
+                int flags = Convert.ToInt32(region.Data["flags"]);
+
+                if ((flags & (int)Framework.RegionFlags.Hyperlink) == 0)
+                    size += region.sizeX * region.sizeY;
+            }
+
+            MainConsole.Instance.Output("This is a very rough approximation.");
+            MainConsole.Instance.Output("Although it will not count regions that are actually links to others over the Hypergrid, ");
+            MainConsole.Instance.Output("it will count regions that are inactive but were not deregistered from the grid service");
+            MainConsole.Instance.Output("(e.g. simulator crashed rather than shutting down cleanly).\n");
+
+            MainConsole.Instance.OutputFormat("Grid size: {0} km squared.", size / 1000000);
+        }
 
         private void HandleShowRegion(string module, string[] cmd)
         {
@@ -697,20 +885,24 @@ namespace OpenSim.Services.GridService
                 return;
             }
 
-            int x, y;
-            if (!int.TryParse(cmd[3], out x))
+            uint x, y;
+            if (!uint.TryParse(cmd[3], out x))
             {
                 MainConsole.Instance.Output("x-coord must be an integer");
                 return;
             }
 
-            if (!int.TryParse(cmd[4], out y))
+            if (!uint.TryParse(cmd[4], out y))
             {
                 MainConsole.Instance.Output("y-coord must be an integer");
                 return;
             }
 
+<<<<<<< HEAD
+            RegionData region = m_Database.Get((int)Util.RegionToWorldLoc(x), (int)Util.RegionToWorldLoc(y), UUID.Zero);
+=======
             RegionData region = m_Database.Get((int)Util.RegionToWorldLoc((uint)x), (int)Util.RegionToWorldLoc((uint)y), UUID.Zero);
+>>>>>>> avn/ubitvar
             if (region == null)
             {
                 MainConsole.Instance.OutputFormat("No region found at {0},{1}", x, y);
@@ -727,7 +919,11 @@ namespace OpenSim.Services.GridService
             ConsoleDisplayList dispList = new ConsoleDisplayList();
             dispList.AddRow("Region Name", r.RegionName);
             dispList.AddRow("Region ID", r.RegionID);
+<<<<<<< HEAD
+            dispList.AddRow("Position", string.Format("{0},{1}", r.coordX, r.coordY));
+=======
             dispList.AddRow("Location", string.Format("{0},{1}", r.coordX, r.coordY));
+>>>>>>> avn/ubitvar
             dispList.AddRow("Size", string.Format("{0}x{1}", r.sizeX, r.sizeY));
             dispList.AddRow("URI", r.Data["serverURI"]);
             dispList.AddRow("Owner ID", r.Data["owner_uuid"]);
@@ -745,10 +941,10 @@ namespace OpenSim.Services.GridService
         private void OutputRegionsToConsoleSummary(List<RegionData> regions)
         {
             ConsoleDisplayTable dispTable = new ConsoleDisplayTable();
-            dispTable.AddColumn("Name", 16);
+            dispTable.AddColumn("Name", 44);
             dispTable.AddColumn("ID", 36);
             dispTable.AddColumn("Position", 11);
-            dispTable.AddColumn("Owner ID", 36);
+            dispTable.AddColumn("Size", 11);
             dispTable.AddColumn("Flags", 60);
 
             foreach (RegionData r in regions)
@@ -758,7 +954,7 @@ namespace OpenSim.Services.GridService
                     r.RegionName,
                     r.RegionID.ToString(),
                     string.Format("{0},{1}", r.coordX, r.coordY),
-                    r.Data["owner_uuid"].ToString(),
+                    string.Format("{0}x{1}", r.sizeX, r.sizeY),
                     flags.ToString());
             }
 
diff --git a/OpenSim/Services/GridService/HypergridLinker.cs b/OpenSim/Services/GridService/HypergridLinker.cs
index 0448b54..b4577b0 100644
--- a/OpenSim/Services/GridService/HypergridLinker.cs
+++ b/OpenSim/Services/GridService/HypergridLinker.cs
@@ -47,7 +47,7 @@ using OpenMetaverse;
 
 namespace OpenSim.Services.GridService
 {
-    public class HypergridLinker 
+    public class HypergridLinker : IHypergridLinker
     {
         private static readonly ILog m_log =
                 LogManager.GetLogger(
@@ -68,10 +68,6 @@ namespace OpenSim.Services.GridService
         protected string m_ThisGatekeeper = string.Empty;
         protected Uri m_ThisGatekeeperURI = null;
 
-        // Hyperlink regions are hyperlinks on the map
-        public readonly Dictionary<UUID, GridRegion> m_HyperlinkRegions = new Dictionary<UUID, GridRegion>();
-        protected Dictionary<UUID, ulong> m_HyperlinkHandles = new Dictionary<UUID, ulong>();
-
         protected GridRegion m_DefaultRegion;
         protected GridRegion DefaultRegion
         {
@@ -160,18 +156,18 @@ namespace OpenSim.Services.GridService
 
             if (MainConsole.Instance != null)
             {
-                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-region",
+                MainConsole.Instance.Commands.AddCommand("Hypergrid", false, "link-region",
                     "link-region <Xloc> <Yloc> <ServerURI> [<RemoteRegionName>]",
                     "Link a HyperGrid Region. Examples for <ServerURI>: http://grid.net:8002/ or http://example.org/path/foo.php", RunCommand);
-                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-region",
+                MainConsole.Instance.Commands.AddCommand("Hypergrid", false, "link-region",
                     "link-region <Xloc> <Yloc> <RegionIP> <RegionPort> [<RemoteRegionName>]",
                     "Link a hypergrid region (deprecated)", RunCommand);
-                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "unlink-region",
+                MainConsole.Instance.Commands.AddCommand("Hypergrid", false, "unlink-region",
                     "unlink-region <local name>",
                     "Unlink a hypergrid region", RunCommand);
-                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-mapping", "link-mapping [<x> <y>]",
+                MainConsole.Instance.Commands.AddCommand("Hypergrid", false, "link-mapping", "link-mapping [<x> <y>]",
                     "Set local coordinate to map HG regions to", RunCommand);
-                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "show hyperlinks", "show hyperlinks",
+                MainConsole.Instance.Commands.AddCommand("Hypergrid", false, "show hyperlinks", "show hyperlinks",
                     "List the HG regions", HandleShow);
             }
         }
@@ -190,7 +186,7 @@ namespace OpenSim.Services.GridService
         private static Random random = new Random();
 
         // From the command line link-region (obsolete) and the map
-        public GridRegion TryLinkRegionToCoords(UUID scopeID, string mapName, int xloc, int yloc, out string reason)
+        private GridRegion TryLinkRegionToCoords(UUID scopeID, string mapName, int xloc, int yloc, out string reason)
         {
             return TryLinkRegionToCoords(scopeID, mapName, xloc, yloc, UUID.Zero, out reason);
         }
@@ -200,24 +196,36 @@ namespace OpenSim.Services.GridService
             reason = string.Empty;
             GridRegion regInfo = null;
 
+            mapName = mapName.Trim();
+
             if (!mapName.StartsWith("http"))
             {
-                string host = "127.0.0.1";
-                string portstr;
+                // Formats: grid.example.com:8002:region name
+                //          grid.example.com:region name
+                //          grid.example.com:8002
+                //          grid.example.com
+
+                string host;
+                uint port = 80;
                 string regionName = "";
-                uint port = 0;
+                
                 string[] parts = mapName.Split(new char[] { ':' });
-                if (parts.Length >= 1)
+                
+                if (parts.Length == 0)
                 {
-                    host = parts[0];
+                    reason = "Wrong format for link-region";
+                    return null;
                 }
+                
+                host = parts[0];
+                
                 if (parts.Length >= 2)
                 {
-                    portstr = parts[1];
-                    //m_log.Debug("-- port = " + portstr);
-                    if (!UInt32.TryParse(portstr, out port))
+                    // If it's a number then assume it's a port. Otherwise, it's a region name.
+                    if (!UInt32.TryParse(parts[1], out port))
                         regionName = parts[1];
                 }
+
                 // always take the last one
                 if (parts.Length >= 3)
                 {
@@ -234,14 +242,30 @@ namespace OpenSim.Services.GridService
             }
             else
             {
-                string[] parts = mapName.Split(new char[] {' '});
-                string regionName = String.Empty;
-                if (parts.Length > 1)
+                // Formats: http://grid.example.com region name
+                //          http://grid.example.com "region name"
+                //          http://grid.example.com
+
+                string serverURI;
+                string regionName = "";
+
+                string[] parts = mapName.Split(new char[] { ' ' });
+
+                if (parts.Length == 0)
                 {
-                    regionName = mapName.Substring(parts[0].Length + 1);
-                    regionName = regionName.Trim(new char[] {'"'});
+                    reason = "Wrong format for link-region";
+                    return null;
                 }
-                if (TryCreateLink(scopeID, xloc, yloc, regionName, 0, null, parts[0], ownerID, out regInfo, out reason))
+
+                serverURI = parts[0];
+
+                if (parts.Length >= 2)
+                {
+                    regionName = mapName.Substring(serverURI.Length);
+                    regionName = regionName.Trim(new char[] { '"', ' ' });
+                }
+
+                if (TryCreateLink(scopeID, xloc, yloc, regionName, 0, null, serverURI, ownerID, out regInfo, out reason))
                 {
                     regInfo.RegionName = mapName; 
                     return regInfo;
@@ -250,15 +274,23 @@ namespace OpenSim.Services.GridService
 
             return null;
         }
-                
-        public bool TryCreateLink(UUID scopeID, int xloc, int yloc, string remoteRegionName, uint externalPort, string externalHostName, UUID ownerID, out GridRegion regInfo, out string reason)
+
+        private bool TryCreateLink(UUID scopeID, int xloc, int yloc, string remoteRegionName, uint externalPort, string externalHostName, UUID ownerID, out GridRegion regInfo, out string reason)
         {
             return TryCreateLink(scopeID, xloc, yloc, remoteRegionName, externalPort, externalHostName, null, ownerID, out regInfo, out reason);
         }
-        
-        public bool TryCreateLink(UUID scopeID, int xloc, int yloc, string remoteRegionName, uint externalPort, string externalHostName, string serverURI, UUID ownerID, out GridRegion regInfo, out string reason)
+
+        private bool TryCreateLink(UUID scopeID, int xloc, int yloc, string remoteRegionName, uint externalPort, string externalHostName, string serverURI, UUID ownerID, out GridRegion regInfo, out string reason)
+        {
+            lock (this)
+            {
+                return TryCreateLinkImpl(scopeID, xloc, yloc, remoteRegionName, externalPort, externalHostName, serverURI, ownerID, out regInfo, out reason);
+            }
+        }
+
+        private bool TryCreateLinkImpl(UUID scopeID, int xloc, int yloc, string remoteRegionName, uint externalPort, string externalHostName, string serverURI, UUID ownerID, out GridRegion regInfo, out string reason)
         {
-            m_log.DebugFormat("[HYPERGRID LINKER]: Link to {0} {1}, in {2}-{3}", 
+            m_log.InfoFormat("[HYPERGRID LINKER]: Link to {0} {1}, in <{2},{3}>", 
                 ((serverURI == null) ? (externalHostName + ":" + externalPort) : serverURI),
                 remoteRegionName, Util.WorldToRegionLoc((uint)xloc), Util.WorldToRegionLoc((uint)yloc));
 
@@ -266,15 +298,15 @@ namespace OpenSim.Services.GridService
             Uri uri = null;
 
             regInfo = new GridRegion();
-            if ( externalPort > 0)
+            if (externalPort > 0)
                 regInfo.HttpPort = externalPort;
             else
-                regInfo.HttpPort = 0;
-            if ( externalHostName != null)
+                regInfo.HttpPort = 80;
+            if (externalHostName != null)
                 regInfo.ExternalHostName = externalHostName;
             else
                 regInfo.ExternalHostName = "0.0.0.0";
-            if ( serverURI != null)
+            if (serverURI != null)
             {
                 regInfo.ServerURI = serverURI;
                 try
@@ -286,7 +318,7 @@ namespace OpenSim.Services.GridService
                 catch {}
             }
 
-            if ( remoteRegionName != string.Empty )
+            if (remoteRegionName != string.Empty)
                 regInfo.RegionName = remoteRegionName;
                 
             regInfo.RegionLocX = xloc;
@@ -299,6 +331,7 @@ namespace OpenSim.Services.GridService
             {
                 if (regInfo.ExternalHostName == m_ThisGatekeeperURI.Host && regInfo.HttpPort == m_ThisGatekeeperURI.Port)
                 {
+                    m_log.InfoFormat("[HYPERGRID LINKER]: Cannot hyperlink to regions on the same grid");
                     reason = "Cannot hyperlink to regions on the same grid";
                     return false;
                 }
@@ -310,7 +343,11 @@ namespace OpenSim.Services.GridService
             GridRegion region = m_GridService.GetRegionByPosition(regInfo.ScopeID, regInfo.RegionLocX, regInfo.RegionLocY);
             if (region != null)
             {
+<<<<<<< HEAD
+                m_log.WarnFormat("[HYPERGRID LINKER]: Coordinates <{0},{1}> are already occupied by region {2} with uuid {3}",
+=======
                 m_log.WarnFormat("[HYPERGRID LINKER]: Coordinates {0}-{1} are already occupied by region {2} with uuid {3}",
+>>>>>>> avn/ubitvar
                     Util.WorldToRegionLoc((uint)regInfo.RegionLocX), Util.WorldToRegionLoc((uint)regInfo.RegionLocY),
                     region.RegionName, region.RegionID);
                 reason = "Coordinates are already in use";
@@ -346,8 +383,13 @@ namespace OpenSim.Services.GridService
             region = m_GridService.GetRegionByUUID(scopeID, regionID);
             if (region != null)
             {
+<<<<<<< HEAD
+                m_log.DebugFormat("[HYPERGRID LINKER]: Region already exists in coordinates <{0},{1}>",
+                    Util.WorldToRegionLoc((uint)region.RegionLocX), Util.WorldToRegionLoc((uint)region.RegionLocY));
+=======
                 m_log.DebugFormat("[HYPERGRID LINKER]: Region already exists in coordinates {0} {1}",
                     Util.WorldToRegionLoc((uint)regInfo.RegionLocX), Util.WorldToRegionLoc((uint)regInfo.RegionLocY));
+>>>>>>> avn/ubitvar
                 regInfo = region;
                 return true;
             }
@@ -381,7 +423,8 @@ namespace OpenSim.Services.GridService
             regInfo.RegionSecret = handle.ToString();
 
             AddHyperlinkRegion(regInfo, handle);
-            m_log.InfoFormat("[HYPERGRID LINKER]: Successfully linked to region {0} with image {1}", regInfo.RegionName, regInfo.TerrainImage);
+            m_log.InfoFormat("[HYPERGRID LINKER]: Successfully linked to region {0} at <{1},{2}> with image {3}",
+                regInfo.RegionName, Util.WorldToRegionLoc((uint)regInfo.RegionLocX), Util.WorldToRegionLoc((uint)regInfo.RegionLocY), regInfo.TerrainImage);
             return true;
         }
 
@@ -502,10 +545,21 @@ namespace OpenSim.Services.GridService
             MainConsole.Instance.Output(new string('-', 72));
             foreach (RegionData r in regions)
             {
+<<<<<<< HEAD
+                MainConsole.Instance.Output(
+                    String.Format("{0}\n{2,-32} {1}\n",
+                        r.RegionName, r.RegionID, 
+                        String.Format("{0},{1} ({2},{3})", r.posX, r.posY,
+                                    Util.WorldToRegionLoc((uint)r.posX), Util.WorldToRegionLoc((uint)r.posY)
+                        )
+                    )
+                );
+=======
                 MainConsole.Instance.Output(String.Format("{0}\n{2,-32} {1}\n",
                                     r.RegionName, r.RegionID,
                                     String.Format("{0},{1} ({2},{3})", r.posX, r.posY,
                                         Util.WorldToRegionLoc((uint)r.posX), Util.WorldToRegionLoc((uint)r.posY))) );
+>>>>>>> avn/ubitvar
             }
             return;
         }
@@ -607,8 +661,13 @@ namespace OpenSim.Services.GridService
                     string externalHostName;
                     try
                     {
+<<<<<<< HEAD
+                        xloc = Convert.ToUInt32(cmdparams[0]);
+                        yloc = Convert.ToUInt32(cmdparams[1]);
+=======
                         xloc = (uint)Convert.ToInt32(cmdparams[0]);
                         yloc = (uint)Convert.ToInt32(cmdparams[1]);
+>>>>>>> avn/ubitvar
                         externalPort = Convert.ToUInt32(cmdparams[3]);
                         externalHostName = cmdparams[2];
                         //internalPort = Convert.ToUInt32(cmdparams[4]);
@@ -711,8 +770,13 @@ namespace OpenSim.Services.GridService
             string externalHostName;
             uint realXLoc, realYLoc;
 
+<<<<<<< HEAD
+            xloc = Convert.ToUInt32(config.GetString("xloc", "0"));
+            yloc = Convert.ToUInt32(config.GetString("yloc", "0"));
+=======
             xloc = (uint)Convert.ToInt32(config.GetString("xloc", "0"));
             yloc = (uint)Convert.ToInt32(config.GetString("yloc", "0"));
+>>>>>>> avn/ubitvar
             externalPort = Convert.ToUInt32(config.GetString("externalPort", "0"));
             externalHostName = config.GetString("externalHostName", "");
             realXLoc = Convert.ToUInt32(config.GetString("real-xloc", "0"));
@@ -720,8 +784,13 @@ namespace OpenSim.Services.GridService
 
             if (m_enableAutoMapping)
             {
+<<<<<<< HEAD
+                xloc = (xloc % 100) + m_autoMappingX;
+                yloc = (yloc % 100) + m_autoMappingY;
+=======
                 xloc = (uint)((xloc % 100) + m_autoMappingX);
                 yloc = (uint)((yloc % 100) + m_autoMappingY);
+>>>>>>> avn/ubitvar
             }
 
             if (((realXLoc == 0) && (realYLoc == 0)) ||
diff --git a/OpenSim/Services/GridService/Properties/AssemblyInfo.cs b/OpenSim/Services/GridService/Properties/AssemblyInfo.cs
index bd84123..ebe3c44 100644
--- a/OpenSim/Services/GridService/Properties/AssemblyInfo.cs
+++ b/OpenSim/Services/GridService/Properties/AssemblyInfo.cs
@@ -29,5 +29,5 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("0.8.0.*")]
+[assembly: AssemblyVersion("0.8.2.*")]