auto_free.h


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// -*- C++ -*-
// Copyright (C) 2008 Red Hat Inc.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.

#ifndef AUTO_FREE_H
#define AUTO_FREE_H 1
#include <cstdlib>

// Very simple auto_ptr-like class for protecting storage allocated
// with free().
class auto_free
{
public:
  auto_free(void* ptr) : _ptr(ptr) {}
  ~auto_free()
  {
    if (_ptr)
      std::free(_ptr);
  }
  void release()
  {
    _ptr = 0;
  }
private:
  // No copying allowed.
  auto_free(const auto_free& af)
  {
  }
  // No assignment either
  auto_free& operator=(const auto_free& rhs)
  {
    return *this;
  }
  void* _ptr;
};
#endif