From a1759292c811829b3fa5a2016dd0fbb448e81c3c Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Sat, 30 Jul 2016 03:31:03 +0100
Subject: [PATCH] add a regionInfoCache cache add region with expire time
 option

---
 .../Grid/RegionInfoCache.cs                     | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs
index 8403362659..77f002e558 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs
@@ -38,7 +38,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
 {
     public class RegionInfoCache
     {
-        private const double CACHE_EXPIRATION_SECONDS = 120; // 2 minutes  opensim regions change a lot
+        private const float CACHE_EXPIRATION_SECONDS = 120; // 2 minutes  opensim regions change a lot
 
 //        private static readonly ILog m_log =
 //                LogManager.GetLogger(
@@ -68,6 +68,17 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
             m_Cache.AddOrUpdate(scopeID, rinfo, CACHE_EXPIRATION_SECONDS);
         }
 
+        public void Cache(UUID scopeID, UUID regionID, GridRegion rinfo, float expireSeconds)
+        {
+            // for now, do not cache negative results; this is because
+            // we need to figure out how to handle regions coming online
+            // in a timely way
+            if (rinfo == null)
+                return;
+            
+            m_Cache.AddOrUpdate(scopeID, rinfo, expireSeconds);
+        }
+
         public GridRegion Get(UUID scopeID, UUID regionID, out bool inCache)
         {
             inCache = false;
@@ -255,7 +266,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
             timer.Start();
         }
 
-        public bool Add(UUID scope, GridRegion region, double expirationSeconds)
+        public bool Add(UUID scope, GridRegion region, float expirationSeconds)
         {
             if (!Monitor.TryEnter(syncRoot, MAX_LOCK_WAIT))
                 throw new ApplicationException("Lock could not be acquired after " + MAX_LOCK_WAIT + "ms");
@@ -284,7 +295,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
             finally { Monitor.Exit(syncRoot);}
         }
 
-        public bool AddOrUpdate(UUID scope, GridRegion region, double expirationSeconds)
+        public bool AddOrUpdate(UUID scope, GridRegion region, float expirationSeconds)
         {
             if (!Monitor.TryEnter(syncRoot, MAX_LOCK_WAIT))
                 throw new ApplicationException("Lock could not be acquired after " + MAX_LOCK_WAIT + "ms");