this_coro.hpp 1.1 KB

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  1. //
  2. // this_coro.hpp
  3. // ~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  6. //
  7. // Distributed under the Boost Software License, Version 1.0. (See accompanying
  8. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  9. //
  10. #ifndef BOOST_ASIO_THIS_CORO_HPP
  11. #define BOOST_ASIO_THIS_CORO_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include <boost/asio/detail/config.hpp>
  16. #include <boost/asio/detail/push_options.hpp>
  17. namespace boost {
  18. namespace asio {
  19. namespace this_coro {
  20. /// Awaitable type that returns the executor of the current coroutine.
  21. struct executor_t
  22. {
  23. BOOST_ASIO_CONSTEXPR executor_t()
  24. {
  25. }
  26. };
  27. /// Awaitable object that returns the executor of the current coroutine.
  28. #if defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION)
  29. constexpr executor_t executor;
  30. #elif defined(BOOST_ASIO_MSVC)
  31. __declspec(selectany) executor_t executor;
  32. #endif
  33. } // namespace this_coro
  34. } // namespace asio
  35. } // namespace boost
  36. #include <boost/asio/detail/pop_options.hpp>
  37. #endif // BOOST_ASIO_THIS_CORO_HPP