yield.hpp

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//          Copyright 2003-2013 Christopher M. Kohlhoff
//          Copyright Oliver Kowalke, Nat Goodspeed 2015.
// 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_FIBERS_ASIO_YIELD_HPP
#define BOOST_FIBERS_ASIO_YIELD_HPP
 
#include <boost/config.hpp>
 
#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_PREFIX
#endif
 
namespace boost {
namespace fibers {
namespace asio {
 
//[fibers_asio_yield_t
class yield_t {
public:
    yield_t() = default;
 
    yield_t operator[]( boost::system::error_code & ec) const {
        yield_t tmp;
        tmp.ec_ = & ec;
        return tmp;
    }
 
//private:
    // ptr to bound error_code instance if any
    boost::system::error_code   *   ec_{ nullptr };
};
//]
 
//[fibers_asio_yield
// canonical instance
thread_local yield_t yield{};
//]
 
}}}
 
#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_SUFFIX
#endif
 
#include "detail/yield.hpp"
 
#endif // BOOST_FIBERS_ASIO_YIELD_HPP