204 lines
9.0 KiB
C#
204 lines
9.0 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Net;
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using System.Reflection;
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using System.Threading;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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using log4net;
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using OpenSim.Framework;
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using OpenSim.Framework.Client;
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using OpenSim.Framework.Capabilities;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Services.Interfaces;
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using OSD = OpenMetaverse.StructuredData.OSD;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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namespace OpenSim.Region.Framework.Scenes
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{
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public delegate void RemoveKnownRegionsFromAvatarList(UUID avatarID, List<ulong> regionlst);
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/// <summary>
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/// Class that Region communications runs through
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/// </summary>
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public class SceneCommunicationService //one instance per region
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private static readonly string LogHeader = "[SCENE COMM]";
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protected RegionInfo m_regionInfo;
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protected Scene m_scene;
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public void SetScene(Scene s)
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{
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m_scene = s;
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m_regionInfo = s.RegionInfo;
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}
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public void InformNeighborsThatRegionisUp(INeighbourService neighbourService, RegionInfo region)
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{
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//m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending InterRegion Notification that region is up " + region.RegionName);
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if (neighbourService == null)
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{
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m_log.ErrorFormat("{0} No neighbour service provided for region {1} to inform neigbhours of status", LogHeader, m_scene.Name);
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return;
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}
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List<GridRegion> neighbours
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= m_scene.GridService.GetNeighbours(m_scene.RegionInfo.ScopeID, m_scene.RegionInfo.RegionID);
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List<ulong> onlineNeighbours = new List<ulong>();
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foreach (GridRegion n in neighbours)
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{
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//m_log.DebugFormat(
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// "{0}: Region flags for {1} as seen by {2} are {3}",
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// LogHeader, n.RegionName, m_scene.Name, regionFlags != null ? regionFlags.ToString() : "not present");
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// Robust services before 2015-01-14 do not return the regionFlags information. In this case, we could
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// make a separate RegionFlags call but this would involve a network call for each neighbour.
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if (n.RegionFlags != null)
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{
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if ((n.RegionFlags & OpenSim.Framework.RegionFlags.RegionOnline) != 0)
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onlineNeighbours.Add(n.RegionHandle);
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}
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else
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{
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onlineNeighbours.Add(n.RegionHandle);
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}
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}
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if(onlineNeighbours.Count > 0)
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{
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Util.FireAndForget(o =>
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{
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foreach (ulong regionhandle in onlineNeighbours)
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{
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Util.RegionHandleToRegionLoc(regionhandle, out uint rx, out uint ry);
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GridRegion neighbour = neighbourService.HelloNeighbour(regionhandle, region);
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if (neighbour != null)
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{
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m_log.DebugFormat("{0} Region {1} successfully informed neighbour {2} at {3}-{4} that it is up",
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LogHeader, m_scene.Name, neighbour.RegionName, rx, ry);
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m_scene.EventManager.TriggerOnRegionUp(neighbour);
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}
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else
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{
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m_log.WarnFormat("{0} Region {1} failed to inform neighbour at {2}-{3} that it is up.",
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LogHeader, m_scene.Name, rx, ry);
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}
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}
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});
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}
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}
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/// <summary>
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/// This informs all neighboring regions about the settings of it's child agent.
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/// This contains information, such as, Draw Distance, Camera location, Current Position, Current throttle settings, etc.
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/// </summary>
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public void SendChildAgentDataUpdate(AgentPosition cAgentData, ScenePresence presence)
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{
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//m_log.DebugFormat(
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// "[SCENE COMMUNICATION SERVICE]: Sending child agent position updates for {0} in {1}",
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// presence.Name, m_scene.Name);
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// This assumes that we know what our neighbors are.
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try
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{
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List<string> simulatorList = new List<string>();
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foreach (ulong regionHandle in presence.KnownRegionHandles)
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{
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if (regionHandle != m_regionInfo.RegionHandle)
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{
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// we only want to send one update to each simulator; the simulator will
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// hand it off to the regions where a child agent exists, this does assume
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// that the region position is cached or performance will degrade
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GridRegion dest = m_scene.GridService.GetRegionByHandle(UUID.Zero, regionHandle);
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if (dest == null)
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continue;
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if (!simulatorList.Contains(dest.ServerURI))
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{
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// we havent seen this simulator before, add it to the list
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// and send it an update
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simulatorList.Add(dest.ServerURI);
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m_scene.SimulationService.UpdateAgent(dest, cAgentData);
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}
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}
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}
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}
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catch (InvalidOperationException)
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{
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// We're ignoring a collection was modified error because this data gets old and outdated fast.
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}
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}
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/// <summary>
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/// Closes a child agents in a collection of regions. Does so asynchronously
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/// so that the caller doesn't wait.
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/// </summary>
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/// <param name="agentID"></param>
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/// <param name="regionslst"></param>
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public void SendCloseChildAgentConnections(UUID agentID, string auth_code, List<ulong> regionslst)
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{
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if (regionslst.Count == 0)
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return;
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// use a single thread job for all
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Util.FireAndForget(o =>
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{
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foreach (ulong regionHandle in regionslst)
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{
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// let's do our best, but there's not much we can do if the neighbour doesn't accept.
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GridRegion destination = m_scene.GridService.GetRegionByHandle(m_regionInfo.ScopeID, regionHandle);
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if (destination == null)
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{
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m_log.DebugFormat(
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"[SCENE COMMUNICATION SERVICE]: Sending close agent ID {0} FAIL, region with handle {1} not found", agentID, regionHandle);
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return;
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}
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m_log.DebugFormat(
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"[SCENE COMMUNICATION SERVICE]: Sending close agent ID {0} to {1}", agentID, destination.RegionName);
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m_scene.SimulationService.CloseAgent(destination, agentID, auth_code);
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}
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}, null, "SCOMM.SendCloseChildAgentConnections");
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}
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public List<GridRegion> RequestNamedRegions(string name, int maxNumber)
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{
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return m_scene.GridService.GetRegionsByName(UUID.Zero, name, maxNumber);
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}
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}
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}
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