bzr commit into mysql-5.1-telco-6.3 branch (jonas:3327)

[jonas oreland]

#At file:///home/jonas/src/telco-6.3/ based on revid:jonas@perch-20101029122145-7vsfhnq6jmlozh2k

 3327 jonas oreland	2010-11-01
      ndb - add in_use checking to DLList for fast detection of incorrect usage (VM_TRACE)

    modified:
      storage/ndb/src/kernel/vm/DLList.hpp
=== modified file 'storage/ndb/src/kernel/vm/DLList.hpp'
--- a/storage/ndb/src/kernel/vm/DLList.hpp	2009-10-08 09:55:36 +0000
+++ b/storage/ndb/src/kernel/vm/DLList.hpp	2010-11-01 09:44:05 +0000
@@ -35,7 +35,10 @@ public:
   struct HeadPOD {
     Uint32 firstItem;
     inline bool isEmpty() const { return firstItem == RNIL; }
-    inline void init () { firstItem = RNIL; }
+    inline void init () { firstItem = RNIL; in_use = false;}
+#ifdef VM_TRACE
+    bool in_use;
+#endif
   };
 
   struct Head : public HeadPOD 
@@ -169,9 +172,16 @@ public:
     : DLListImpl<P,T,U>(thePool), src(_src)
   {
     this->head = src;
+#ifdef VM_TRACE
+    assert(src.in_use == false);
+    src.in_use = true;
+#endif
   }
   
   ~LocalDLListImpl(){
+#ifdef VM_TRACE
+    assert(src.in_use == true);
+#endif
     src = this->head;
   }
 private:


Attachment: [text/bzr-bundle] bzr/[e-mail]