ceph/src/boost/libs/compute/include/boost/compute/async/wait.hpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #ifndef BOOST_COMPUTE_ASYNC_WAIT_HPP
  12 #define BOOST_COMPUTE_ASYNC_WAIT_HPP
  13
  14 #include <boost/compute/config.hpp>
  15 #include <boost/compute/utility/wait_list.hpp>
  16
  17 namespace boost {
  18 namespace compute {
  19 namespace detail {
  20
  21 #ifndef BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  22 template<class Event>
  23 inline void insert_events_variadic(wait_list &l, Event&& event)
  24 {
  25     l.insert(std::forward<Event>(event));
  26 }
  27
  28 template<class Event, class... Rest>
  29 inline void insert_events_variadic(wait_list &l, Event&& event, Rest&&... rest)
  30 {
  31     l.insert(std::forward<Event>(event));
  32
  33     insert_events_variadic(l, std::forward<Rest>(rest)...);
  34 }
  35 #endif // BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  36
  37 } // end detail namespace
  38
  39 #ifndef BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  40 /// Blocks until all events have completed. Events can either be \ref event
  41 /// objects or \ref future "future<T>" objects.
  42 ///
  43 /// \see event, wait_list
  44 template<class... Events>
  45 inline void wait_for_all(Events&&... events)
  46 {
  47     wait_list l;
  48     detail::insert_events_variadic(l, std::forward<Events>(events)...);
  49     l.wait();
  50 }
  51 #endif // BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
  52
  53 } // end compute namespace
  54 } // end boost namespace
  55
  56 #endif // BOOST_COMPUTE_ASYNC_WAIT_HPP