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// Copyright Oliver Kowalke 2009.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_COROUTINES_DETAIL_COROUTINE_CONTEXT_H
#define BOOST_COROUTINES_DETAIL_COROUTINE_CONTEXT_H
#include <cstddef>
#include <boost/assert.hpp>
#include <boost/config.hpp>
#include <boost/context/fcontext.hpp>
#include <boost/coroutine/detail/config.hpp>
#include <boost/coroutine/stack_context.hpp>
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
namespace boost {
namespace coroutines {
namespace detail {
// class hold stack-context and coroutines execution-context
class BOOST_COROUTINES_DECL coroutine_context
{
private:
stack_context stack_ctx_;
context::fcontext_t ctx_;
public:
typedef void( * ctx_fn)( intptr_t);
// default ctor represents the current execution-context
coroutine_context();
// ctor creates a new execution-context running coroutine-fn `fn`
// `ctx_` will be allocated on top of the stack managed by parameter
// `stack_ctx`
coroutine_context( ctx_fn fn, stack_context const& stack_ctx);
coroutine_context( coroutine_context const&);
coroutine_context& operator=( coroutine_context const&);
intptr_t jump( coroutine_context &, intptr_t = 0, bool = true);
stack_context & stack_ctx()
{ return stack_ctx_; }
};
}}}
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_COROUTINES_DETAIL_COROUTINE_CONTEXT_H
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