From 2bee150aac6d4996140ddf1f9bd09ba444901033 Mon Sep 17 00:00:00 2001
From: Melanie
Date: Sun, 28 Nov 2010 20:45:03 +0100
Subject: Implement health monitoring of the packet receiving and sending
 threads

---
 OpenSim/Region/Framework/Scenes/Scene.cs | 39 +++++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)

(limited to 'OpenSim/Region/Framework')

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 216eb51..83887b4 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -174,6 +174,8 @@ namespace OpenSim.Region.Framework.Scenes
         private volatile bool shuttingdown;
 
         private int m_lastUpdate;
+        private int m_lastIncoming;
+        private int m_lastOutgoing;
         private bool m_firstHeartbeat = true;
 
         private object m_deleting_scene_object = new object();
@@ -567,6 +569,8 @@ namespace OpenSim.Region.Framework.Scenes
             m_regionName = m_regInfo.RegionName;
             m_datastore = m_regInfo.DataStore;
             m_lastUpdate = Util.EnvironmentTickCount();
+            m_lastIncoming = Util.EnvironmentTickCount();
+            m_lastOutgoing = Util.EnvironmentTickCount();
 
             m_physicalPrim = physicalPrim;
             m_seeIntoRegionFromNeighbor = SeeIntoRegionFromNeighbor;
@@ -4543,11 +4547,17 @@ namespace OpenSim.Region.Framework.Scenes
             // 1 = sim is up and accepting http requests. The heartbeat has
             // stopped and the sim is probably locked up, but a remote
             // admin restart may succeed
-            //
+            // 
             // 2 = Sim is up and the heartbeat is running. The sim is likely
-            // usable for people within and logins _may_ work
+            // usable for people within
+            //
+            // 3 = Sim is up and one packet thread is running. Sim is
+            // unstable and will not accept new logins
+            //
+            // 4 = Sim is up and both packet threads are running. Sim is
+            // likely usable
             //
-            // 3 = We have seen a new user enter within the past 4 minutes
+            // 5 = We have seen a new user enter within the past 4 minutes
             // which can be seen as positive confirmation of sim health
             //
             int health=1; // Start at 1, means we're up
@@ -4557,6 +4567,16 @@ namespace OpenSim.Region.Framework.Scenes
             else
                 return health;
 
+            if (m_firstHeartbeat || ((Util.EnvironmentTickCountSubtract(m_lastIncoming)) < 1000))
+                health+=1;
+            else
+                return health;
+
+            if (m_firstHeartbeat || ((Util.EnvironmentTickCountSubtract(m_lastOutgoing)) < 1000))
+                health+=1;
+            else
+                return health;
+
             // A login in the last 4 mins? We can't be doing too badly
             //
             if ((Util.EnvironmentTickCountSubtract(m_LastLogin)) < 240000)
@@ -5106,5 +5126,18 @@ namespace OpenSim.Region.Framework.Scenes
                 m_log.Debug("[SCENE]: Finished dropped attachment deletion");
             }
         }
+
+        public void ThreadAlive(int threadCode)
+        {
+            switch(threadCode)
+            {
+                case 1: // Incoming
+                    m_lastIncoming = Util.EnvironmentTickCount();
+                    break;
+                case 2: // Incoming
+                    m_lastOutgoing = Util.EnvironmentTickCount();
+                    break;
+            }
+        }
     }
 }
-- 
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