wtf/OwnFastMallocPtr.h

   1 /*
   2  *  Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
   3  *  Copyright (C) 2009 Google Inc. All rights reserved.
   4  *
   5  *  This library is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU Library General Public
   7  *  License as published by the Free Software Foundation; either
   8  *  version 2 of the License, or (at your option) any later version.
   9  *
  10  *  This library is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *  Library General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU Library General Public License
  16  *  along with this library; see the file COPYING.LIB.  If not, write to
  17  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  *  Boston, MA 02110-1301, USA.
  19  *
  20  */
  21
  22 #ifndef OwnFastMallocPtr_h
  23 #define OwnFastMallocPtr_h
  24
  25 #include "FastMalloc.h"
  26 #include "Noncopyable.h"
  27
  28 namespace WTF {
  29
  30     template<class T> class OwnFastMallocPtr : public Noncopyable {
  31     public:
  32         explicit OwnFastMallocPtr(T* ptr) : m_ptr(ptr)
  33         {
  34         }
  35
  36         ~OwnFastMallocPtr()
  37         {
  38             fastFree(const_cast<void*>(static_cast<const void*>(const_cast<const T*>(m_ptr))));
  39         }
  40
  41         T* get() const { return m_ptr; }
  42         T* release() { T* ptr = m_ptr; m_ptr = 0; return ptr; }
  43
  44     private:
  45         T* m_ptr;
  46     };
  47
  48 } // namespace WTF
  49
  50 using WTF::OwnFastMallocPtr;
  51
  52 #endif // OwnFastMallocPtr_h