intrusive/detail/exception_disposer.hpp

0001 /////////////////////////////////////////////////////////////////////////////
0002 //
0003 // (C) Copyright Ion Gaztanaga  2014-2014
0004 //
0005 // Distributed under the Boost Software License, Version 1.0.
0006 //    (See accompanying file LICENSE_1_0.txt or copy at
0007 //          http://www.boost.org/LICENSE_1_0.txt)
0008 //
0009 // See http://www.boost.org/libs/intrusive for documentation.
0010 //
0011 /////////////////////////////////////////////////////////////////////////////
0012
0013 #ifndef BOOST_INTRUSIVE_DETAIL_EXCEPTION_DISPOSER_HPP
0014 #define BOOST_INTRUSIVE_DETAIL_EXCEPTION_DISPOSER_HPP
0015
0016 #ifndef BOOST_CONFIG_HPP
0017 #  include <boost/config.hpp>
0018 #endif
0019
0020 #if defined(BOOST_HAS_PRAGMA_ONCE)
0021 #  pragma once
0022 #endif
0023
0024 #include <boost/intrusive/detail/workaround.hpp>
0025
0026 namespace boost {
0027 namespace intrusive {
0028 namespace detail {
0029
0030 template<class Container, class Disposer>
0031 class exception_disposer
0032 {
0033    Container *cont_;
0034    Disposer  &disp_;
0035
0036    exception_disposer(const exception_disposer&);
0037    exception_disposer &operator=(const exception_disposer&);
0038
0039    public:
0040    exception_disposer(Container &cont, Disposer &disp)
0041       :  cont_(&cont), disp_(disp)
0042    {}
0043
0044    inline void release()
0045    {  cont_ = 0;  }
0046
0047    ~exception_disposer()
0048    {
0049       if(cont_){
0050          cont_->clear_and_dispose(disp_);
0051       }
0052    }
0053 };
0054
0055 }  //namespace detail{
0056 }  //namespace intrusive{
0057 }  //namespace boost{
0058
0059 #endif //BOOST_INTRUSIVE_DETAIL_EXCEPTION_DISPOSER_HPP