From 94e58ff6b9368975925cea4697077a8e59162bc0 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 9 Mar 2012 02:38:11 +0000
Subject: Use SP.ParentPart instead of ParentID in places where it's more
 efficient (saving extra null checks, etc.)

However, it looks like we should retain SP.ParentID since it's much easier to use that in places where another thread could change ParentPart to null.
Otherwise one has to clumsily put ParentPart in a reference, etc. to avoid a race.
---
 .../Shared/Api/Implementation/LSL_Api.cs           | 24 +++++++---------------
 1 file changed, 7 insertions(+), 17 deletions(-)

(limited to 'OpenSim/Region/ScriptEngine/Shared')

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 786ae6e..bb374ed 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -3825,7 +3825,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             List<String> nametable = new List<String>();
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
             {
-                if (presence.ParentID != 0 && m_host.ParentGroup.HasChildPrim(presence.ParentID))
+                SceneObjectPart sitPart = presence.ParentPart;
+                if (sitPart != null && m_host.ParentGroup.HasChildPrim(sitPart.LocalId))
                     nametable.Add(presence.ControllingClient.Name);
             });
 
@@ -4393,22 +4394,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 // Find pushee position
                 // Pushee Linked?
-                if (pusheeav.ParentID != 0)
-                {
-                    SceneObjectPart parentobj = World.GetSceneObjectPart(pusheeav.ParentID);
-                    if (parentobj != null)
-                    {
-                        PusheePos = parentobj.AbsolutePosition;
-                    }
-                    else
-                    {
-                        PusheePos = pusheeav.AbsolutePosition;
-                    }
-                }
+                SceneObjectPart sitPart = pusheeav.ParentPart;
+                if (sitPart != null)
+                    PusheePos = sitPart.AbsolutePosition;
                 else
-                {
                     PusheePos = pusheeav.AbsolutePosition;
-                }
             }
 
             if (!pusheeIsAvatar)
@@ -5603,7 +5593,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     flags |= ScriptBaseClass.AGENT_IN_AIR;
             }
 
-             if (agent.ParentID != 0)
+             if (agent.ParentPart != null)
              {
                  flags |= ScriptBaseClass.AGENT_ON_OBJECT;
                  flags |= ScriptBaseClass.AGENT_SITTING;
@@ -7692,7 +7682,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
             {
                 if (presence.ParentID != 0 && m_host.ParentGroup.HasChildPrim(presence.ParentID))
-                        avatarCount++;
+                    avatarCount++;
             });
 
             return m_host.ParentGroup.PrimCount + avatarCount;
-- 
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