94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
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// Copyright (C) 2013 Vicente J. Botet Escriba
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// 2013/09 Vicente J. Botet Escriba
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// Adapt to boost from CCIA C++11 implementation
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// Make use of Boost.Move
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#ifndef BOOST_THREAD_DETAIL_FUNCTION_WRAPPER_HPP
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#define BOOST_THREAD_DETAIL_FUNCTION_WRAPPER_HPP
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#include <boost/config.hpp>
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#include <boost/thread/detail/memory.hpp>
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#include <boost/thread/detail/move.hpp>
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#include <boost/thread/csbl/memory/unique_ptr.hpp>
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#include <memory>
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#include <functional>
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namespace boost
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{
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namespace detail
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{
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class function_wrapper
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{
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struct impl_base
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{
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virtual void call()=0;
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virtual ~impl_base()
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{
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}
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};
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typedef boost::csbl::unique_ptr<impl_base> impl_base_type;
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impl_base_type impl;
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template <typename F>
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struct impl_type: impl_base
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{
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F f;
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impl_type(F const &f_)
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: f(f_)
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{}
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impl_type(BOOST_THREAD_RV_REF(F) f_)
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: f(boost::move(f_))
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{}
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void call()
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{
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if (impl) f();
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}
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};
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public:
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BOOST_THREAD_MOVABLE_ONLY(function_wrapper)
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//#if ! defined BOOST_NO_CXX11_RVALUE_REFERENCES
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template<typename F>
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function_wrapper(F const& f):
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impl(new impl_type<F>(f))
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{}
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//#endif
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template<typename F>
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function_wrapper(BOOST_THREAD_RV_REF(F) f):
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impl(new impl_type<F>(boost::forward<F>(f)))
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{}
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function_wrapper(BOOST_THREAD_RV_REF(function_wrapper) other) BOOST_NOEXCEPT :
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impl(other.impl)
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{
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other.impl = 0;
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}
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function_wrapper()
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: impl(0)
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{
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}
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~function_wrapper()
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{
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}
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function_wrapper& operator=(BOOST_THREAD_RV_REF(function_wrapper) other) BOOST_NOEXCEPT
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{
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impl=other.impl;
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other.impl=0;
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return *this;
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}
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void operator()()
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{ impl->call();}
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};
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}
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}
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#endif // header
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