C# WorldMap.MapRequestState类代码示例

 /// <summary>
 /// Enqueue the MapItem request for remote processing
 /// </summary>
 /// <param name="httpserver">blank string, we discover this in the process</param>
 /// <param name="id">Agent ID that we are making this request on behalf</param>
 /// <param name="flags">passed in from packet</param>
 /// <param name="EstateID">passed in from packet</param>
 /// <param name="godlike">passed in from packet</param>
 /// <param name="itemtype">passed in from packet</param>
 /// <param name="regionhandle">Region we're looking up</param>
 public void RequestMapItems(string httpserver, UUID id, uint flags,
     uint EstateID, bool godlike, uint itemtype, ulong regionhandle)
 {
     MapRequestState st = new MapRequestState();
     st.agentID = id;
     st.flags = flags;
     st.EstateID = EstateID;
     st.godlike = godlike;
     st.itemtype = itemtype;
     st.regionhandle = regionhandle;
     EnqueueMapItemRequest(st);
 }

        /// <summary>
        /// Does the actual remote mapitem request
        /// This should be called from an asynchronous thread
        /// Request failures get blacklisted until region restart so we don't
        /// continue to spend resources trying to contact regions that are down.
        /// </summary>
        /// <param name="httpserver">blank string, we discover this in the process</param>
        /// <param name="id">Agent ID that we are making this request on behalf</param>
        /// <param name="flags">passed in from packet</param>
        /// <param name="EstateID">passed in from packet</param>
        /// <param name="godlike">passed in from packet</param>
        /// <param name="itemtype">passed in from packet</param>
        /// <param name="regionhandle">Region we're looking up</param>
        /// <returns></returns>
        private OSDMap RequestMapItemsAsync(string httpserver, UUID id, uint flags,
            uint EstateID, bool godlike, uint itemtype, ulong regionhandle)
        {
            bool blacklisted = false;
            lock (m_blacklistedregions)
            {
                if (m_blacklistedregions.ContainsKey(regionhandle))
                    blacklisted = true;
            }

            if (blacklisted)
                return new OSDMap();

            UUID requestID = UUID.Random();
            lock (m_cachedRegionMapItemsAddress)
            {
                if (m_cachedRegionMapItemsAddress.ContainsKey(regionhandle))
                    httpserver = m_cachedRegionMapItemsAddress[regionhandle];
            }
            if (httpserver.Length == 0)
            {
                uint x = 0, y = 0;
                Utils.LongToUInts(regionhandle, out x, out y);
                GridRegion mreg = m_scene.GridService.GetRegionByPosition(m_scene.RegionInfo.ScopeID, (int)x, (int)y); 

                if (mreg != null)
                {
                    httpserver = "http://" + mreg.ExternalEndPoint.Address.ToString() + ":" + mreg.HttpPort + "/MAP/MapItems/" + regionhandle.ToString();
                    lock (m_cachedRegionMapItemsAddress)
                    {
                        if (!m_cachedRegionMapItemsAddress.ContainsKey(regionhandle))
                            m_cachedRegionMapItemsAddress.Add(regionhandle, httpserver);
                    }
                }
                else
                {
                    lock (m_blacklistedregions)
                    {
                        if (!m_blacklistedregions.ContainsKey(regionhandle))
                            m_blacklistedregions.Add(regionhandle, Environment.TickCount);
                    }
                    m_log.InfoFormat("[WORLD MAP]: Blacklisted region {0}", regionhandle.ToString());
                }
            }

            blacklisted = false;
            lock (m_blacklistedurls)
            {
                if (m_blacklistedurls.ContainsKey(httpserver))
                    blacklisted = true;
            }

            // Can't find the http server
            if (httpserver.Length == 0 || blacklisted)
                return new OSDMap();

            MapRequestState mrs = new MapRequestState();
            mrs.agentID = id;
            mrs.EstateID = EstateID;
            mrs.flags = flags;
            mrs.godlike = godlike;
            mrs.itemtype=itemtype;
            mrs.regionhandle = regionhandle;

            lock (m_openRequests)
                m_openRequests.Add(requestID, mrs);

            WebRequest mapitemsrequest = WebRequest.Create(httpserver);
            mapitemsrequest.Method = "POST";
            mapitemsrequest.ContentType = "application/xml+llsd";
            OSDMap RAMap = new OSDMap();

            // string RAMapString = RAMap.ToString();
            OSD LLSDofRAMap = RAMap; // RENAME if this works

            byte[] buffer = OSDParser.SerializeLLSDXmlBytes(LLSDofRAMap);
            OSDMap responseMap = new OSDMap();
            responseMap["requestID"] = OSD.FromUUID(requestID);

            Stream os = null;
            try
            { // send the Post
                mapitemsrequest.ContentLength = buffer.Length;   //Count bytes to send
                os = mapitemsrequest.GetRequestStream();
                os.Write(buffer, 0, buffer.Length);         //Send it
                os.Close();
//.........这里部分代码省略.........

 /// <summary>
 /// Enqueues the map item request into the processing thread
 /// </summary>
 /// <param name="state"></param>
 public void EnqueueMapItemRequest(MapRequestState state)
 {
     requests.Enqueue(state);
 }

        /// <summary>
        /// Sends the mapitem response to the IClientAPI
        /// </summary>
        /// <param name="response">The OSDMap Response for the mapitem</param>
        private void RequestMapItemsCompleted(OSDMap response)
        {
            UUID requestID = response["requestID"].AsUUID();

            if (requestID != UUID.Zero)
            {
                MapRequestState mrs = new MapRequestState();
                mrs.agentID = UUID.Zero;
                lock (m_openRequests)
                {
                    if (m_openRequests.ContainsKey(requestID))
                    {
                        mrs = m_openRequests[requestID];
                        m_openRequests.Remove(requestID);
                    }
                }

                if (mrs.agentID != UUID.Zero)
                {
                    ScenePresence av = null;
                    m_scene.TryGetScenePresence(mrs.agentID, out av);
                    if (av != null)
                    {
                        if (response.ContainsKey(mrs.itemtype.ToString()))
                        {
                            List<mapItemReply> returnitems = new List<mapItemReply>();
                            OSDArray itemarray = (OSDArray)response[mrs.itemtype.ToString()];
                            for (int i = 0; i < itemarray.Count; i++)
                            {
                                OSDMap mapitem = (OSDMap)itemarray[i];
                                mapItemReply mi = new mapItemReply();
                                mi.x = (uint)mapitem["X"].AsInteger();
                                mi.y = (uint)mapitem["Y"].AsInteger();
                                mi.id = mapitem["ID"].AsUUID();
                                mi.Extra = mapitem["Extra"].AsInteger();
                                mi.Extra2 = mapitem["Extra2"].AsInteger();
                                mi.name = mapitem["Name"].AsString();
                                returnitems.Add(mi);
                            }
                            av.ControllingClient.SendMapItemReply(returnitems.ToArray(), mrs.itemtype, mrs.flags);
                        }
                    }
                }
            }
        }

        /// <summary>
        /// Enqueues a 'stop thread' MapRequestState.  Causes the MapItemRequest thread to end
        /// </summary>
        private void StopThread()
        {
            MapRequestState st = new MapRequestState();
            st.agentID=STOP_UUID;
            st.EstateID=0;
            st.flags=0;
            st.godlike=false;
            st.itemtype=0;
            st.regionhandle=0;

            requests.Enqueue(st);
        }

        /// <summary>
        /// Sends the mapitem response to the IClientAPI
        /// </summary>
        /// <param name="response">The OSDMap Response for the mapitem</param>
        private void RequestMapItemsCompleted(IAsyncResult iar)
        {
            AsyncResult result = (AsyncResult)iar;
            RequestMapItemsDelegate icon = (RequestMapItemsDelegate)result.AsyncDelegate;

            OSDMap response = (OSDMap)icon.EndInvoke(iar);

            Interlocked.Decrement(ref nAsyncRequests);

            if (!response.ContainsKey("requestID"))
                return;

            UUID requestID = response["requestID"].AsUUID();

            if (requestID != UUID.Zero)
            {
                MapRequestState mrs = new MapRequestState();
                mrs.agentID = UUID.Zero;
                lock (m_openRequests)
                {
                    if (m_openRequests.ContainsKey(requestID))
                    {
                        mrs = m_openRequests[requestID];
                        m_openRequests.Remove(requestID);
                    }
                }

                if (mrs.agentID != UUID.Zero)
                {
                    ScenePresence av = null;
                    m_scene.TryGetScenePresence(mrs.agentID, out av);
                    if (av != null)
                    {
                        if (response.ContainsKey(mrs.itemtype.ToString()))
                        {
                            List<mapItemReply> returnitems = new List<mapItemReply>();
                            OSDArray itemarray = (OSDArray)response[mrs.itemtype.ToString()];
                            for (int i = 0; i < itemarray.Count; i++)
                            {
                                OSDMap mapitem = (OSDMap)itemarray[i];
                                mapItemReply mi = new mapItemReply();
                                mi.x = (uint)mapitem["X"].AsInteger();
                                mi.y = (uint)mapitem["Y"].AsInteger();
                                mi.id = mapitem["ID"].AsUUID();
                                mi.Extra = mapitem["Extra"].AsInteger();
                                mi.Extra2 = mapitem["Extra2"].AsInteger();
                                mi.name = mapitem["Name"].AsString();
                                returnitems.Add(mi);
                            }
                            av.ControllingClient.SendMapItemReply(returnitems.ToArray(), mrs.itemtype, mrs.flags);
                        }

                        // Service 7 (MAP_ITEM_LAND_FOR_SALE)
                        uint itemtype = 7;

                        if (response.ContainsKey(itemtype.ToString()))
                        {
                            List<mapItemReply> returnitems = new List<mapItemReply>();
                            OSDArray itemarray = (OSDArray)response[itemtype.ToString()];
                            for (int i = 0; i < itemarray.Count; i++)
                            {
                                OSDMap mapitem = (OSDMap)itemarray[i];
                                mapItemReply mi = new mapItemReply();
                                mi.x = (uint)mapitem["X"].AsInteger();
                                mi.y = (uint)mapitem["Y"].AsInteger();
                                mi.id = mapitem["ID"].AsUUID();
                                mi.Extra = mapitem["Extra"].AsInteger();
                                mi.Extra2 = mapitem["Extra2"].AsInteger();
                                mi.name = mapitem["Name"].AsString();
                                returnitems.Add(mi);
                            }
                            av.ControllingClient.SendMapItemReply(returnitems.ToArray(), itemtype, mrs.flags);
                        }

                        // Service 1 (MAP_ITEM_TELEHUB)
                        itemtype = 1;

                        if (response.ContainsKey(itemtype.ToString()))
                        {
                            List<mapItemReply> returnitems = new List<mapItemReply>();
                            OSDArray itemarray = (OSDArray)response[itemtype.ToString()];
                            for (int i = 0; i < itemarray.Count; i++)
                            {
                                OSDMap mapitem = (OSDMap)itemarray[i];
                                mapItemReply mi = new mapItemReply();
                                mi.x = (uint)mapitem["X"].AsInteger();
                                mi.y = (uint)mapitem["Y"].AsInteger();
                                mi.id = mapitem["ID"].AsUUID();
                                mi.Extra = mapitem["Extra"].AsInteger();
                                mi.Extra2 = mapitem["Extra2"].AsInteger();
                                mi.name = mapitem["Name"].AsString();
                                returnitems.Add(mi);
                            }
                            av.ControllingClient.SendMapItemReply(returnitems.ToArray(), itemtype, mrs.flags);
                        }
                    }
//.........这里部分代码省略.........

        /// <summary>
        /// Does the actual remote mapitem request
        /// This should be called from an asynchronous thread
        /// Request failures get blacklisted until region restart so we don't
        /// continue to spend resources trying to contact regions that are down.
        /// </summary>
        /// <param name="httpserver">blank string, we discover this in the process</param>
        /// <param name="id">Agent ID that we are making this request on behalf</param>
        /// <param name="flags">passed in from packet</param>
        /// <param name="EstateID">passed in from packet</param>
        /// <param name="godlike">passed in from packet</param>
        /// <param name="itemtype">passed in from packet</param>
        /// <param name="regionhandle">Region we're looking up</param>
        /// <returns></returns>
        private OSDMap RequestMapItemsAsync(UUID id, uint flags,
            uint EstateID, bool godlike, uint itemtype, ulong regionhandle)
        {
//            m_log.DebugFormat("[WORLDMAP]: RequestMapItemsAsync; region handle: {0} {1}", regionhandle, itemtype);

            string httpserver = "";
            bool blacklisted = false;
            lock (m_blacklistedregions)
            {
                if (m_blacklistedregions.ContainsKey(regionhandle))
                {
                    if (Environment.TickCount > (m_blacklistedregions[regionhandle] + blacklistTimeout))
                    {
                        m_log.DebugFormat("[WORLD MAP]: Unblock blacklisted region {0}", regionhandle);

                        m_blacklistedregions.Remove(regionhandle);
                    }
                    else
                        blacklisted = true;
                }
            }

            if (blacklisted)
                return new OSDMap();

            UUID requestID = UUID.Random();
            lock (m_cachedRegionMapItemsAddress)
            {
                if (m_cachedRegionMapItemsAddress.ContainsKey(regionhandle))
                    httpserver = m_cachedRegionMapItemsAddress[regionhandle];
            }
            if (httpserver.Length == 0)
            {
                uint x = 0, y = 0;
                Util.RegionHandleToWorldLoc(regionhandle, out x, out y);
                GridRegion mreg = m_scene.GridService.GetRegionByPosition(m_scene.RegionInfo.ScopeID, (int)x, (int)y);

                if (mreg != null)
                {
                    httpserver = mreg.ServerURI + "MAP/MapItems/" + regionhandle.ToString();
                    lock (m_cachedRegionMapItemsAddress)
                    {
                        if (!m_cachedRegionMapItemsAddress.ContainsKey(regionhandle))
                            m_cachedRegionMapItemsAddress.Add(regionhandle, httpserver);
                    }
                }
                else
                {
                    lock (m_blacklistedregions)
                    {
                        if (!m_blacklistedregions.ContainsKey(regionhandle))
                            m_blacklistedregions.Add(regionhandle, Environment.TickCount);
                    }
                    //m_log.InfoFormat("[WORLD MAP]: Blacklisted region {0}", regionhandle.ToString());
                }
            }

            blacklisted = false;
            lock (m_blacklistedurls)
            {
                if (m_blacklistedurls.ContainsKey(httpserver))
                {
                    if (Environment.TickCount > (m_blacklistedurls[httpserver] + blacklistTimeout))
                    {
                        m_log.DebugFormat("[WORLD MAP]: Unblock blacklisted URL {0}", httpserver);

                        m_blacklistedurls.Remove(httpserver);
                    }
                    else
                        blacklisted = true;
                }
            }

            // Can't find the http server
            if (httpserver.Length == 0 || blacklisted)
                return new OSDMap();

            MapRequestState mrs = new MapRequestState();
            mrs.agentID = id;
            mrs.EstateID = EstateID;
            mrs.flags = flags;
            mrs.godlike = godlike;
            mrs.itemtype=itemtype;
            mrs.regionhandle = regionhandle;

            lock (m_openRequests)
//.........这里部分代码省略.........

        /// <summary>
        /// Enqueues the map item request into the services throttle processing thread
        /// </summary>
        /// <param name="state"></param>
        public void EnqueueMapItemRequest(MapRequestState st)
        {

            m_ServiceThrottle.Enqueue("map-item", st.regionhandle.ToString() + st.agentID.ToString(), delegate
            {
                if (st.agentID != UUID.Zero)
                {
                    bool dorequest = true;
                    lock (m_rootAgents)
                    {
                        if (!m_rootAgents.Contains(st.agentID))
                            dorequest = false;
                    }

                    if (dorequest && !m_blacklistedregions.ContainsKey(st.regionhandle))
                    {
                        if (nAsyncRequests >= MAX_ASYNC_REQUESTS) // hit the break
                        {
                            // AH!!! Recursive !
                            // Put this request back in the queue and return
                            EnqueueMapItemRequest(st);
                            return;
                        }

                        RequestMapItemsDelegate d = RequestMapItemsAsync;
                        d.BeginInvoke(st.agentID, st.flags, st.EstateID, st.godlike, st.itemtype, st.regionhandle, RequestMapItemsCompleted, null);
                        //OSDMap response = RequestMapItemsAsync(st.agentID, st.flags, st.EstateID, st.godlike, st.itemtype, st.regionhandle);
                        //RequestMapItemsCompleted(response);
                        Interlocked.Increment(ref nAsyncRequests);
                    }
                }
            });
        }