Chris@16: //
Chris@16: // detail/impl/winrt_timer_scheduler.ipp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP
Chris@16: #define BOOST_ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
Chris@16: 
Chris@16: #include <boost/asio/detail/bind_handler.hpp>
Chris@16: #include <boost/asio/detail/winrt_timer_scheduler.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: winrt_timer_scheduler::winrt_timer_scheduler(
Chris@16:     boost::asio::io_service& io_service)
Chris@16:   : boost::asio::detail::service_base<winrt_timer_scheduler>(io_service),
Chris@16:     io_service_(use_service<io_service_impl>(io_service)),
Chris@16:     mutex_(),
Chris@16:     event_(),
Chris@16:     timer_queues_(),
Chris@16:     thread_(0),
Chris@16:     stop_thread_(false),
Chris@16:     shutdown_(false)
Chris@16: {
Chris@16:   thread_ = new boost::asio::detail::thread(
Chris@16:       bind_handler(&winrt_timer_scheduler::call_run_thread, this));
Chris@16: }
Chris@16: 
Chris@16: winrt_timer_scheduler::~winrt_timer_scheduler()
Chris@16: {
Chris@16:   shutdown_service();
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::shutdown_service()
Chris@16: {
Chris@16:   boost::asio::detail::mutex::scoped_lock lock(mutex_);
Chris@16:   shutdown_ = true;
Chris@16:   stop_thread_ = true;
Chris@16:   event_.signal(lock);
Chris@16:   lock.unlock();
Chris@16: 
Chris@16:   if (thread_)
Chris@16:   {
Chris@16:     thread_->join();
Chris@16:     delete thread_;
Chris@16:     thread_ = 0;
Chris@16:   }
Chris@16: 
Chris@16:   op_queue<operation> ops;
Chris@16:   timer_queues_.get_all_timers(ops);
Chris@16:   io_service_.abandon_operations(ops);
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::fork_service(boost::asio::io_service::fork_event)
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::init_task()
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::run_thread()
Chris@16: {
Chris@16:   boost::asio::detail::mutex::scoped_lock lock(mutex_);
Chris@16:   while (!stop_thread_)
Chris@16:   {
Chris@16:     const long max_wait_duration = 5 * 60 * 1000000;
Chris@16:     long wait_duration = timer_queues_.wait_duration_usec(max_wait_duration);
Chris@16:     event_.wait_for_usec(lock, wait_duration);
Chris@16:     event_.clear(lock);
Chris@16:     op_queue<operation> ops;
Chris@16:     timer_queues_.get_ready_timers(ops);
Chris@16:     if (!ops.empty())
Chris@16:     {
Chris@16:       lock.unlock();
Chris@16:       io_service_.post_deferred_completions(ops);
Chris@16:       lock.lock();
Chris@16:     }
Chris@16:   }
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::call_run_thread(winrt_timer_scheduler* scheduler)
Chris@16: {
Chris@16:   scheduler->run_thread();
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::do_add_timer_queue(timer_queue_base& queue)
Chris@16: {
Chris@16:   mutex::scoped_lock lock(mutex_);
Chris@16:   timer_queues_.insert(&queue);
Chris@16: }
Chris@16: 
Chris@16: void winrt_timer_scheduler::do_remove_timer_queue(timer_queue_base& queue)
Chris@16: {
Chris@16:   mutex::scoped_lock lock(mutex_);
Chris@16:   timer_queues_.erase(&queue);
Chris@16: }
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_WINDOWS_RUNTIME)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP