ported double tracking from TC

deps/acelite/ace/Containers.h

@@ -0,0 +1,69 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Containers.h
+ *
+ *  @author Douglas C.  Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef ACE_CONTAINERS_H
+#define ACE_CONTAINERS_H
+
+#include /**/ "ace/pre.h"
+
+#include /**/ "ace/ACE_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+template <class T> class ACE_Double_Linked_List;
+template <class T> class ACE_Double_Linked_List_Iterator_Base;
+template <class T> class ACE_Double_Linked_List_Iterator;
+template <class T> class ACE_Double_Linked_List_Reverse_Iterator;
+
+/**
+ * @class ACE_DLList_Node
+ *
+ * @brief Base implementation of element in a DL list.  Needed for
+ * ACE_Double_Linked_List.
+ */
+class ACE_Export ACE_DLList_Node
+{
+public:
+  friend class ACE_Double_Linked_List<ACE_DLList_Node>;
+  friend class ACE_Double_Linked_List_Iterator_Base<ACE_DLList_Node>;
+  friend class ACE_Double_Linked_List_Iterator<ACE_DLList_Node>;
+  friend class ACE_Double_Linked_List_Reverse_Iterator<ACE_DLList_Node>;
+
+  ACE_DLList_Node (void *i,
+                   ACE_DLList_Node *n = 0,
+                   ACE_DLList_Node *p = 0);
+
+  /// Declare the dynamic allocation hooks.
+  ACE_ALLOC_HOOK_DECLARE;
+
+  void *item_;
+
+  ACE_DLList_Node *next_;
+  ACE_DLList_Node *prev_;
+
+protected:
+  ACE_DLList_Node (void);
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+#include "ace/Containers.inl"
+#endif /* __ACE_INLINE__ */
+
+#include "ace/Containers_T.h"
+
+#include /**/ "ace/post.h"
+
+#endif /* ACE_CONTAINERS_H */