148 lines
4.4 KiB
C++
148 lines
4.4 KiB
C++
//
|
|
// detail/winrt_timer_scheduler.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2021 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 ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
|
|
#define ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include "asio/detail/config.hpp"
|
|
|
|
#if defined(ASIO_WINDOWS_RUNTIME)
|
|
|
|
#include <cstddef>
|
|
#include "asio/detail/event.hpp"
|
|
#include "asio/detail/limits.hpp"
|
|
#include "asio/detail/mutex.hpp"
|
|
#include "asio/detail/op_queue.hpp"
|
|
#include "asio/detail/thread.hpp"
|
|
#include "asio/detail/timer_queue_base.hpp"
|
|
#include "asio/detail/timer_queue_set.hpp"
|
|
#include "asio/detail/wait_op.hpp"
|
|
#include "asio/execution_context.hpp"
|
|
|
|
#if defined(ASIO_HAS_IOCP)
|
|
# include "asio/detail/win_iocp_io_context.hpp"
|
|
#else // defined(ASIO_HAS_IOCP)
|
|
# include "asio/detail/scheduler.hpp"
|
|
#endif // defined(ASIO_HAS_IOCP)
|
|
|
|
#if defined(ASIO_HAS_IOCP)
|
|
# include "asio/detail/thread.hpp"
|
|
#endif // defined(ASIO_HAS_IOCP)
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
class winrt_timer_scheduler
|
|
: public execution_context_service_base<winrt_timer_scheduler>
|
|
{
|
|
public:
|
|
// Constructor.
|
|
ASIO_DECL winrt_timer_scheduler(execution_context& context);
|
|
|
|
// Destructor.
|
|
ASIO_DECL ~winrt_timer_scheduler();
|
|
|
|
// Destroy all user-defined handler objects owned by the service.
|
|
ASIO_DECL void shutdown();
|
|
|
|
// Recreate internal descriptors following a fork.
|
|
ASIO_DECL void notify_fork(execution_context::fork_event fork_ev);
|
|
|
|
// Initialise the task. No effect as this class uses its own thread.
|
|
ASIO_DECL void init_task();
|
|
|
|
// Add a new timer queue to the reactor.
|
|
template <typename Time_Traits>
|
|
void add_timer_queue(timer_queue<Time_Traits>& queue);
|
|
|
|
// Remove a timer queue from the reactor.
|
|
template <typename Time_Traits>
|
|
void remove_timer_queue(timer_queue<Time_Traits>& queue);
|
|
|
|
// Schedule a new operation in the given timer queue to expire at the
|
|
// specified absolute time.
|
|
template <typename Time_Traits>
|
|
void schedule_timer(timer_queue<Time_Traits>& queue,
|
|
const typename Time_Traits::time_type& time,
|
|
typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
|
|
|
|
// Cancel the timer operations associated with the given token. Returns the
|
|
// number of operations that have been posted or dispatched.
|
|
template <typename Time_Traits>
|
|
std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
|
|
typename timer_queue<Time_Traits>::per_timer_data& timer,
|
|
std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
|
|
|
|
// Move the timer operations associated with the given timer.
|
|
template <typename Time_Traits>
|
|
void move_timer(timer_queue<Time_Traits>& queue,
|
|
typename timer_queue<Time_Traits>::per_timer_data& to,
|
|
typename timer_queue<Time_Traits>::per_timer_data& from);
|
|
|
|
private:
|
|
// Run the select loop in the thread.
|
|
ASIO_DECL void run_thread();
|
|
|
|
// Entry point for the select loop thread.
|
|
ASIO_DECL static void call_run_thread(winrt_timer_scheduler* reactor);
|
|
|
|
// Helper function to add a new timer queue.
|
|
ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
|
|
|
|
// Helper function to remove a timer queue.
|
|
ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
|
|
|
|
// The scheduler implementation used to post completions.
|
|
#if defined(ASIO_HAS_IOCP)
|
|
typedef class win_iocp_io_context scheduler_impl;
|
|
#else
|
|
typedef class scheduler scheduler_impl;
|
|
#endif
|
|
scheduler_impl& scheduler_;
|
|
|
|
// Mutex used to protect internal variables.
|
|
asio::detail::mutex mutex_;
|
|
|
|
// Event used to wake up background thread.
|
|
asio::detail::event event_;
|
|
|
|
// The timer queues.
|
|
timer_queue_set timer_queues_;
|
|
|
|
// The background thread that is waiting for timers to expire.
|
|
asio::detail::thread* thread_;
|
|
|
|
// Does the background thread need to stop.
|
|
bool stop_thread_;
|
|
|
|
// Whether the service has been shut down.
|
|
bool shutdown_;
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace asio
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#include "asio/detail/impl/winrt_timer_scheduler.hpp"
|
|
#if defined(ASIO_HEADER_ONLY)
|
|
# include "asio/detail/impl/winrt_timer_scheduler.ipp"
|
|
#endif // defined(ASIO_HEADER_ONLY)
|
|
|
|
#endif // defined(ASIO_WINDOWS_RUNTIME)
|
|
|
|
#endif // ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
|