//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
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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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// Official repository: https://github.com/boostorg/beast
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//
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#ifndef BOOST_BEAST_CORE_IMPL_SAVED_HANDLER_IPP
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#define BOOST_BEAST_CORE_IMPL_SAVED_HANDLER_IPP
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#include <boost/beast/core/saved_handler.hpp>
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#include <boost/core/exchange.hpp>
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namespace boost {
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namespace beast {
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saved_handler::
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~saved_handler()
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{
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if(p_)
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p_->destroy();
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}
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saved_handler::
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saved_handler(saved_handler&& other) noexcept
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: p_(boost::exchange(other.p_, nullptr))
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{
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}
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saved_handler&
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saved_handler::
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operator=(saved_handler&& other) noexcept
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{
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// Can't delete a handler before invoking
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BOOST_ASSERT(! has_value());
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p_ = boost::exchange(other.p_, nullptr);
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return *this;
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}
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bool
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saved_handler::
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reset() noexcept
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{
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if(! p_)
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return false;
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boost::exchange(p_, nullptr)->destroy();
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return true;
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}
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void
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saved_handler::
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invoke()
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{
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// Can't invoke without a value
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BOOST_ASSERT(has_value());
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boost::exchange(
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p_, nullptr)->invoke();
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}
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bool
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saved_handler::
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maybe_invoke()
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{
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if(! p_)
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return false;
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boost::exchange(
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p_, nullptr)->invoke();
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return true;
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}
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} // beast
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} // boost
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#endif
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