class BackRef is no longer used. Move it to unused directory.

openvpn/common/backref.hpp

@@ -1,57 +0,0 @@
-//    OpenVPN -- An application to securely tunnel IP networks
-//               over a single port, with support for SSL/TLS-based
-//               session authentication and key exchange,
-//               packet encryption, packet authentication, and
-//               packet compression.
-//
-//    Copyright (C) 2013-2014 OpenVPN Technologies, Inc.
-//
-//    This program is free software: you can redistribute it and/or modify
-//    it under the terms of the GNU Affero General Public License Version 3
-//    as published by the Free Software Foundation.
-//
-//    This program is distributed in the hope that it will be useful,
-//    but WITHOUT ANY WARRANTY; without even the implied warranty of
-//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-//    GNU Affero General Public License for more details.
-//
-//    You should have received a copy of the GNU Affero General Public License
-//    along with this program in the COPYING file.
-//    If not, see <http://www.gnu.org/licenses/>.
-
-// A low-level backward reference object.
-
-#ifndef OPENVPN_COMMON_BACKREF_H
-#define OPENVPN_COMMON_BACKREF_H
-
-namespace openvpn {
-
-  template <typename REF>
-  class BackRef {
-  public:
-    BackRef() : ref_(NULL) {}
-
-    bool defined() const
-    {
-      return ref_ != NULL;
-    }
-
-    void reset()
-    {
-      ref_ = NULL;
-    }
-
-    void set(REF* ref)
-    {
-      ref_ = ref;
-    }
-
-    REF* operator()() const { return ref_; }
-
-  private:
-    REF* ref_;
-  };
-
-}
-
-#endif