From: Michal 'vorner' Vaner <michal.vaner@nic.cz>
Date: Mon, 23 Jul 2012 08:29:17 +0000 (+0200)
Subject: [2090] Comment on switch to bare pointers
X-Git-Tag: trac2351_base~158^2~17^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=51cc7bb7a7ed494d4fdf80de77a057e2b3833699;p=thirdparty%2Fkea.git

[2090] Comment on switch to bare pointers
---

diff --git a/src/lib/datasrc/rbtree.h b/src/lib/datasrc/rbtree.h
index 126aa6ef81..284627b4d2 100644
--- a/src/lib/datasrc/rbtree.h
+++ b/src/lib/datasrc/rbtree.h
@@ -304,6 +304,12 @@ private:
         const;
 
     /// \name Data to maintain the rbtree structure.
+    ///
+    /// We keep them as offset pointers. This is part of a future plan, when we
+    /// want to share the image of the tree between multiple processes.
+    /// However, whenever we have a chance, we switch to bare pointers during
+    /// the processing. The pointers on stack are never shared and the offset
+    /// pointers have non-trivial performance impact.
     //@{
     RBNodePtr parent_;
     /// \brief Access the parent_ as bare pointer.