Mantis#2725. Thank you kindly, Diva, for a patch that:

Adds missing protocol pieces for EstablishAgentCommunication
event which allows the client to activate CAPS and the EQ for 
child agents. 

2 files changed, 22 insertions, 9 deletions

diff --git a/OpenSim/Region/Environment/Modules/Framework/EventQueueGetModule.cs b/OpenSim/Region/Environment/Modules/Framework/EventQueueGetModule.cs
index 6d3391a..f1f70ff 100644
--- a/OpenSim/Region/Environment/Modules/Framework/EventQueueGetModule.cs
+++ b/OpenSim/Region/Environment/Modules/Framework/EventQueueGetModule.cs
@@ -202,6 +202,7 @@ namespace OpenSim.Region.Environment.Modules.Framework
                 {
                     m_AvatarQueueUUIDMapping.Remove(ky);
                     m_scene.RemoveHTTPHandler("","/CAPS/EQG/" + ky.ToString() + "/");
+                    m_log.Debug("[EVENTQUEUE]: Removing " + "/CAPS/EQG/" + ky.ToString() + "/");
                 }
 
             }
@@ -225,6 +226,7 @@ namespace OpenSim.Region.Environment.Modules.Framework
                     m_QueueUUIDAvatarMapping.Remove(ky);
 
             }
+
             m_log.DebugFormat("[EVENTQUEUE]: Client {0} deregistered in region {1}.", AgentID, m_scene.RegionInfo.RegionName);
         }
         
@@ -326,13 +328,14 @@ namespace OpenSim.Region.Environment.Modules.Framework
 
             if (element == null)
             {
-                // m_log.ErrorFormat("[EVENTQUEUE]: Failed to process queue");
+                //m_log.ErrorFormat("[EVENTQUEUE]: Nothing to process in " + m_scene.RegionInfo.RegionName);
                 if (thisID == -1) // close-request
                 {
-                    responsedata["int_response_code"] = 404;
+                    m_log.ErrorFormat("[EVENTQUEUE]: 404 in " + m_scene.RegionInfo.RegionName);
+                    responsedata["int_response_code"] = 404; //501; //410; //404;
                     responsedata["content_type"] = "text/plain";
                     responsedata["keepalive"] = false;
-                    responsedata["str_response_string"] = "";
+                    responsedata["str_response_string"] = "Closed EQG";
                     return responsedata;
                 }
                 responsedata["int_response_code"] = 502;
diff --git a/OpenSim/Region/Environment/Modules/Framework/EventQueueHelper.cs b/OpenSim/Region/Environment/Modules/Framework/EventQueueHelper.cs
index 4833f27..0ffa8aa 100644
--- a/OpenSim/Region/Environment/Modules/Framework/EventQueueHelper.cs
+++ b/OpenSim/Region/Environment/Modules/Framework/EventQueueHelper.cs
@@ -80,15 +80,15 @@ namespace OpenSim.Region.Environment
 
         public static OSD DisableSimulator(ulong Handle)
         {
-            OSDMap llsdSimInfo = new OSDMap(1);
+            //OSDMap llsdSimInfo = new OSDMap(1);
 
-            llsdSimInfo.Add("Handle", new OSDBinary(regionHandleToByteArray(Handle)));
+            //llsdSimInfo.Add("Handle", new OSDBinary(regionHandleToByteArray(Handle)));
 
-            OSDArray arr = new OSDArray(1);
-            arr.Add(llsdSimInfo);
+            //OSDArray arr = new OSDArray(1);
+            //arr.Add(llsdSimInfo);
 
-            OSDMap llsdBody = new OSDMap(1);
-            llsdBody.Add("SimulatorInfo", arr);
+            OSDMap llsdBody = new OSDMap(0);
+            //llsdBody.Add("SimulatorInfo", arr);
 
             return buildEvent("DisableSimulator", llsdBody);
         }
@@ -178,6 +178,16 @@ namespace OpenSim.Region.Environment
             return buildEvent("ScriptRunningReply", body);
         }
 
+        public static OSD EstablishAgentCommunication(UUID agentID, string simIpAndPort, string seedcap)
+        {
+            OSDMap body = new OSDMap(3);
+            body.Add("agent-id", new OSDUUID(agentID));
+            body.Add("sim-ip-and-port", new OSDString(simIpAndPort));
+            body.Add("seed-capability", new OSDString(seedcap));
+
+            return buildEvent("EstablishAgentCommunication", body);
+        }
+
         public static OSD KeepAliveEvent()
         {
             return buildEvent("FAKEEVENT", new OSDMap());