91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
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// Copyright Oliver Kowalke 2009.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_COROUTINES_DETAIL_HOLDER_H
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#define BOOST_COROUTINES_DETAIL_HOLDER_H
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#include <boost/assert.hpp>
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#include <boost/config.hpp>
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#include <boost/optional.hpp>
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#include <boost/coroutine/detail/coroutine_context.hpp>
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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namespace boost {
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namespace coroutines {
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namespace detail {
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template< typename Data >
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struct holder
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{
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coroutine_context * ctx;
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optional< Data > data;
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bool force_unwind;
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explicit holder( coroutine_context * ctx_) :
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ctx( ctx_), data(), force_unwind( false)
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{ BOOST_ASSERT( ctx); }
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explicit holder( coroutine_context * ctx_, Data data_) :
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ctx( ctx_), data( data_), force_unwind( false)
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{ BOOST_ASSERT( ctx); }
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explicit holder( coroutine_context * ctx_, bool force_unwind_) :
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ctx( ctx_), data(), force_unwind( force_unwind_)
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{
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BOOST_ASSERT( ctx);
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BOOST_ASSERT( force_unwind);
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}
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holder( holder const& other) :
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ctx( other.ctx), data( other.data),
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force_unwind( other.force_unwind)
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{}
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holder & operator=( holder const& other)
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{
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if ( this == & other) return * this;
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ctx = other.ctx;
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data = other.data;
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force_unwind = other.force_unwind;
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return * this;
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}
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};
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template<>
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struct holder< void >
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{
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coroutine_context * ctx;
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bool force_unwind;
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explicit holder( coroutine_context * ctx_, bool force_unwind_ = false) :
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ctx( ctx_), force_unwind( force_unwind_)
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{ BOOST_ASSERT( ctx); }
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holder( holder const& other) :
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ctx( other.ctx), force_unwind( other.force_unwind)
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{}
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holder & operator=( holder const& other)
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{
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if ( this == & other) return * this;
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ctx = other.ctx;
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force_unwind = other.force_unwind;
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return * this;
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}
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};
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}}}
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_SUFFIX
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#endif
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#endif // BOOST_COROUTINES_DETAIL_HOLDER_H
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