From bbe4ea4ba8408c846620390cecbe4089ddfd0144 Mon Sep 17 00:00:00 2001
From: kaetemi <kaetemi@gmail.com>
Date: Thu, 1 Aug 2013 22:47:46 +0200
Subject: [PATCH] Add some basic prediction to CCDBNodeBranch::find

---
 code/nel/include/nel/misc/cdb_branch.h |  6 ++++++
 code/nel/src/misc/cdb_branch.cpp       | 23 +++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/code/nel/include/nel/misc/cdb_branch.h b/code/nel/include/nel/misc/cdb_branch.h
index 11adbac0d..f8a979499 100644
--- a/code/nel/include/nel/misc/cdb_branch.h
+++ b/code/nel/include/nel/misc/cdb_branch.h
@@ -21,6 +21,8 @@
 
 #include "cdb.h"
 
+#define NL_CDB_OPTIMIZE_PREDICT 1
+
 namespace NLMISC{
 
 /**
@@ -247,6 +249,10 @@ protected:
 
 	/// called by clear
 	void			removeAllBranchObserver();
+
+#if NL_CDB_OPTIMIZE_PREDICT
+	CRefPtr<ICDBNode>		_PredictNode;
+#endif
 };
 
 }
diff --git a/code/nel/src/misc/cdb_branch.cpp b/code/nel/src/misc/cdb_branch.cpp
index 998ea8cd3..627c1f38b 100644
--- a/code/nel/src/misc/cdb_branch.cpp
+++ b/code/nel/src/misc/cdb_branch.cpp
@@ -232,6 +232,9 @@ void CCDBNodeBranch::attachChild( ICDBNode * node, string nodeName )
 		//nldebug ( "CDB: Attaching node" );
 		_NodesByName.push_back( node );
 		_Sorted = false;
+#if NL_CDB_OPTIMIZE_PREDICT
+		_PredictNode = node;
+#endif
 	}
 
 } // attachChild //
@@ -799,6 +802,18 @@ public:
 //-----------------------------------------------
 ICDBNode *CCDBNodeBranch::find(const std::string &nodeName)
 {
+#if NL_CDB_OPTIMIZE_PREDICT
+	ICDBNode *predictNode = _PredictNode;
+	if (predictNode)
+	{
+		if (predictNode->getParent() == this 
+			&& *predictNode->getName() == nodeName)
+		{
+			return predictNode;
+		}
+	}
+#endif
+
 	if (!_Sorted)
 	{
 		_Sorted = true;
@@ -812,7 +827,15 @@ ICDBNode *CCDBNodeBranch::find(const std::string &nodeName)
 	else
 	{
 		if (*(*it)->getName() == nodeName)
+		{
+#if NL_CDB_OPTIMIZE_PREDICT
+			ICDBNode *node = *it;
+			_PredictNode = node;
+			return node;
+#else
 			return *it;
+#endif
+		}
 		else
 			return NULL;
 	}