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1 //
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2 // detail/timer_queue_base.hpp
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3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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4 //
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5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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6 //
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7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
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8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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9 //
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10
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11 #ifndef BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
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12 #define BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
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13
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14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
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15 # pragma once
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16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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17
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18 #include <boost/asio/detail/config.hpp>
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19 #include <boost/asio/detail/noncopyable.hpp>
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20 #include <boost/asio/detail/op_queue.hpp>
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21 #include <boost/asio/detail/operation.hpp>
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22
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23 #include <boost/asio/detail/push_options.hpp>
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24
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25 namespace boost {
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26 namespace asio {
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27 namespace detail {
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28
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29 class timer_queue_base
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30 : private noncopyable
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31 {
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32 public:
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33 // Constructor.
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34 timer_queue_base() : next_(0) {}
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35
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36 // Destructor.
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37 virtual ~timer_queue_base() {}
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38
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39 // Whether there are no timers in the queue.
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40 virtual bool empty() const = 0;
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41
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42 // Get the time to wait until the next timer.
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43 virtual long wait_duration_msec(long max_duration) const = 0;
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44
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45 // Get the time to wait until the next timer.
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46 virtual long wait_duration_usec(long max_duration) const = 0;
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47
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48 // Dequeue all ready timers.
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49 virtual void get_ready_timers(op_queue<operation>& ops) = 0;
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50
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51 // Dequeue all timers.
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52 virtual void get_all_timers(op_queue<operation>& ops) = 0;
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53
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54 private:
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55 friend class timer_queue_set;
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56
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57 // Next timer queue in the set.
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58 timer_queue_base* next_;
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59 };
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60
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61 template <typename Time_Traits>
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62 class timer_queue;
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63
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64 } // namespace detail
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65 } // namespace asio
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66 } // namespace boost
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67
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68 #include <boost/asio/detail/pop_options.hpp>
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69
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70 #endif // BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
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