74 lines
2.1 KiB
C++
Executable File
74 lines
2.1 KiB
C++
Executable File
|
|
// 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/detail/fcontext.hpp>
|
|
|
|
#include <boost/coroutine/detail/config.hpp>
|
|
#include <boost/coroutine/detail/preallocated.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:
|
|
template< typename Coro >
|
|
friend void trampoline( context::detail::transfer_t);
|
|
template< typename Coro >
|
|
friend void trampoline_void( context::detail::transfer_t);
|
|
template< typename Coro >
|
|
friend void trampoline_pull( context::detail::transfer_t);
|
|
template< typename Coro >
|
|
friend void trampoline_push( context::detail::transfer_t);
|
|
template< typename Coro >
|
|
friend void trampoline_push_void( context::detail::transfer_t);
|
|
|
|
preallocated palloc_;
|
|
context::detail::fcontext_t ctx_;
|
|
|
|
public:
|
|
typedef void( * ctx_fn)( context::detail::transfer_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, preallocated const& palloc);
|
|
|
|
coroutine_context( coroutine_context const&);
|
|
|
|
coroutine_context& operator=( coroutine_context const&);
|
|
|
|
void * jump( coroutine_context &, void * = 0);
|
|
|
|
stack_context & stack_ctx()
|
|
{ return palloc_.sctx; }
|
|
};
|
|
|
|
}}}
|
|
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
|
# include BOOST_ABI_SUFFIX
|
|
#endif
|
|
|
|
#endif // BOOST_COROUTINES_DETAIL_COROUTINE_CONTEXT_H
|