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