1//
2// detail/timer_queue_base.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_BASE_HPP
12#define BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_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/detail/config.hpp>
19#include <boost/asio/detail/noncopyable.hpp>
20#include <boost/asio/detail/op_queue.hpp>
21#include <boost/asio/detail/operation.hpp>
22
23#include <boost/asio/detail/push_options.hpp>
24
25namespace boost {
26namespace asio {
27namespace detail {
28
29class timer_queue_base
30 : private noncopyable
31{
32public:
33 // Constructor.
34 timer_queue_base() : next_(0) {}
35
36 // Destructor.
37 virtual ~timer_queue_base() {}
38
39 // Whether there are no timers in the queue.
40 virtual bool empty() const = 0;
41
42 // Get the time to wait until the next timer.
43 virtual long wait_duration_msec(long max_duration) const = 0;
44
45 // Get the time to wait until the next timer.
46 virtual long wait_duration_usec(long max_duration) const = 0;
47
48 // Dequeue all ready timers.
49 virtual void get_ready_timers(op_queue<operation>& ops) = 0;
50
51 // Dequeue all timers.
52 virtual void get_all_timers(op_queue<operation>& ops) = 0;
53
54private:
55 friend class timer_queue_set;
56
57 // Next timer queue in the set.
58 timer_queue_base* next_;
59};
60
61template <typename Time_Traits>
62class timer_queue;
63
64} // namespace detail
65} // namespace asio
66} // namespace boost
67
68#include <boost/asio/detail/pop_options.hpp>
69
70#endif // BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
71