security/nss/cpputil/freebl_scoped_ptrs.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef freebl_scoped_ptrs_h__
   8 #define freebl_scoped_ptrs_h__
   9
  10 #include <memory>
  11 #include "blapi.h"
  12
  13 struct ScopedDelete {
  14   void operator()(CMACContext* ctx) { CMAC_Destroy(ctx, PR_TRUE); }
  15 };
  16
  17 template <class T>
  18 struct ScopedMaybeDelete {
  19   void operator()(T* ptr) {
  20     if (ptr) {
  21       ScopedDelete del;
  22       del(ptr);
  23     }
  24   }
  25 };
  26
  27 #define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x
  28
  29 SCOPED(CMACContext);
  30
  31 #undef SCOPED
  32
  33 #endif  // freebl_scoped_ptrs_h__