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3rdparty/boost_1_81_0/boost/compute/async/wait.hpp 1.61 KB
63e88f80   Hu Chunming   提交三方库
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  //---------------------------------------------------------------------------//
  // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
  //
  // 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
  //
  // See http://boostorg.github.com/compute for more information.
  //---------------------------------------------------------------------------//
  
  #ifndef BOOST_COMPUTE_ASYNC_WAIT_HPP
  #define BOOST_COMPUTE_ASYNC_WAIT_HPP
  
  #include <boost/compute/config.hpp>
  #include <boost/compute/utility/wait_list.hpp>
  
  namespace boost {
  namespace compute {
  namespace detail {
  
  #ifndef BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  template<class Event>
  inline void insert_events_variadic(wait_list &l, Event&& event)
  {
      l.insert(std::forward<Event>(event));
  }
  
  template<class Event, class... Rest>
  inline void insert_events_variadic(wait_list &l, Event&& event, Rest&&... rest)
  {
      l.insert(std::forward<Event>(event));
  
      insert_events_variadic(l, std::forward<Rest>(rest)...);
  }
  #endif // BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  
  } // end detail namespace
  
  #ifndef BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  /// Blocks until all events have completed. Events can either be \ref event
  /// objects or \ref future "future<T>" objects.
  ///
  /// \see event, wait_list
  template<class... Events>
  inline void wait_for_all(Events&&... events)
  {
      wait_list l;
      detail::insert_events_variadic(l, std::forward<Events>(events)...);
      l.wait();
  }
  #endif // BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  
  } // end compute namespace
  } // end boost namespace
  
  #endif // BOOST_COMPUTE_ASYNC_WAIT_HPP