// 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_STACK_CONTEXT_H

#define BOOST_COROUTINES_STACK_CONTEXT_H

#include <cstddef>

#include <boost/config.hpp>

#include <boost/coroutine/detail/config.hpp>

#ifdef BOOST_HAS_ABI_HEADERS

# include BOOST_ABI_PREFIX

#endif

namespace boost {

namespace coroutines {

#if defined(BOOST_USE_SEGMENTED_STACKS)

struct BOOST_COROUTINES_DECL stack_context

{

typedef void * segments_context[BOOST_CONTEXT_SEGMENTS];

std::size_t size;

void * sp;

segments_context segments_ctx;

#if defined(BOOST_USE_VALGRIND)

unsigned valgrind_stack_id;

#endif

stack_context() :

size( 0), sp( 0), segments_ctx()

#if defined(BOOST_USE_VALGRIND)

, valgrind_stack_id( 0)

#endif

{}

};

#else

struct BOOST_COROUTINES_DECL stack_context

{

std::size_t size;

void * sp;

#if defined(BOOST_USE_VALGRIND)

unsigned valgrind_stack_id;

#endif

stack_context() :

size( 0), sp( 0)

#if defined(BOOST_USE_VALGRIND)

, valgrind_stack_id( 0)

#endif

{}

};

#endif

}}

#ifdef BOOST_HAS_ABI_HEADERS

# include BOOST_ABI_SUFFIX

#endif

#endif // BOOST_COROUTINES_STACK_CONTEXT_H