/src/contrib/boost/asio/detail/null_event.hpp

http://pythonocc.googlecode.com/ · C++ Header · 79 lines · 47 code · 17 blank · 15 comment · 2 complexity · 8d687412757952da3741e002c0fc279f MD5 · raw file

  1. //
  2. // null_event.hpp
  3. // ~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2010 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_DETAIL_NULL_EVENT_HPP
  11. #define BOOST_ASIO_DETAIL_NULL_EVENT_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/push_options.hpp>
  16. #include <boost/asio/detail/push_options.hpp>
  17. #include <boost/config.hpp>
  18. #include <boost/asio/detail/pop_options.hpp>
  19. #if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
  20. #include <boost/asio/detail/noncopyable.hpp>
  21. namespace boost {
  22. namespace asio {
  23. namespace detail {
  24. class null_event
  25. : private noncopyable
  26. {
  27. public:
  28. // Constructor.
  29. null_event()
  30. {
  31. }
  32. // Destructor.
  33. ~null_event()
  34. {
  35. }
  36. // Signal the event.
  37. template <typename Lock>
  38. void signal(Lock&)
  39. {
  40. }
  41. // Signal the event and unlock the mutex.
  42. template <typename Lock>
  43. void signal_and_unlock(Lock&)
  44. {
  45. }
  46. // Reset the event.
  47. template <typename Lock>
  48. void clear(Lock&)
  49. {
  50. }
  51. // Wait for the event to become signalled.
  52. template <typename Lock>
  53. void wait(Lock&)
  54. {
  55. }
  56. };
  57. } // namespace detail
  58. } // namespace asio
  59. } // namespace boost
  60. #endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
  61. #include <boost/asio/detail/pop_options.hpp>
  62. #endif // BOOST_ASIO_DETAIL_NULL_EVENT_HPP