1 // 2 // detail/timer_queue_ptime.hpp 3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) 6 // 7 // Distributed under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 // 10 11 #ifndef BOOST_ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP 12 #define BOOST_ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP 13 14 #if defined(_MSC_VER) && (_MSC_VER >= 1200) 15 # pragma once 16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) 17 18 #include <boost/asio/time_traits.hpp> 19 #include <boost/asio/detail/timer_queue.hpp> 20 21 #include <boost/asio/detail/push_options.hpp> 22 23 #if defined(BOOST_ASIO_HAS_BOOST_DATE_TIME) 24 25 namespace boost { 26 namespace asio { 27 namespace detail { 28 29 struct forwarding_posix_time_traits : time_traits<boost::posix_time::ptime> {}; 30 31 // Template specialisation for the commonly used instantation. 32 template <> 33 class timer_queue<time_traits<boost::posix_time::ptime> > 34 : public timer_queue_base 35 { 36 public: 37 // The time type. 38 typedef boost::posix_time::ptime time_type; 39 40 // The duration type. 41 typedef boost::posix_time::time_duration duration_type; 42 43 // Per-timer data. 44 typedef timer_queue<forwarding_posix_time_traits>::per_timer_data 45 per_timer_data; 46 47 // Constructor. 48 BOOST_ASIO_DECL timer_queue(); 49 50 // Destructor. 51 BOOST_ASIO_DECL virtual ~timer_queue(); 52 53 // Add a new timer to the queue. Returns true if this is the timer that is 54 // earliest in the queue, in which case the reactor's event demultiplexing 55 // function call may need to be interrupted and restarted. 56 BOOST_ASIO_DECL bool enqueue_timer(const time_type& time, 57 per_timer_data& timer, wait_op* op); 58 59 // Whether there are no timers in the queue. 60 BOOST_ASIO_DECL virtual bool empty() const; 61 62 // Get the time for the timer that is earliest in the queue. 63 BOOST_ASIO_DECL virtual long wait_duration_msec(long max_duration) const; 64 65 // Get the time for the timer that is earliest in the queue. 66 BOOST_ASIO_DECL virtual long wait_duration_usec(long max_duration) const; 67 68 // Dequeue all timers not later than the current time. 69 BOOST_ASIO_DECL virtual void get_ready_timers(op_queue<operation>& ops); 70 71 // Dequeue all timers. 72 BOOST_ASIO_DECL virtual void get_all_timers(op_queue<operation>& ops); 73 74 // Cancel and dequeue operations for the given timer. 75 BOOST_ASIO_DECL std::size_t cancel_timer( 76 per_timer_data& timer, op_queue<operation>& ops, 77 std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)()); 78 79 private: 80 timer_queue<forwarding_posix_time_traits> impl_; 81 }; 82 83 } // namespace detail 84 } // namespace asio 85 } // namespace boost 86 87 #endif // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME) 88 89 #include <boost/asio/detail/pop_options.hpp> 90 91 #if defined(BOOST_ASIO_HEADER_ONLY) 92 # include <boost/asio/detail/impl/timer_queue_ptime.ipp> 93 #endif // defined(BOOST_ASIO_HEADER_ONLY) 94 95 #endif // BOOST_ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP 96