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//
// detail/timer_queue_base.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2012 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_TIMER_QUEUE_BASE_HPP
#define BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/op_queue.hpp>
#include <boost/asio/detail/operation.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class timer_queue_base
: private noncopyable
{
public:
// Constructor.
timer_queue_base() : next_(0) {}
// Destructor.
virtual ~timer_queue_base() {}
// Whether there are no timers in the queue.
virtual bool empty() const = 0;
// Get the time to wait until the next timer.
virtual long wait_duration_msec(long max_duration) const = 0;
// Get the time to wait until the next timer.
virtual long wait_duration_usec(long max_duration) const = 0;
// Dequeue all ready timers.
virtual void get_ready_timers(op_queue<operation>& ops) = 0;
// Dequeue all timers.
virtual void get_all_timers(op_queue<operation>& ops) = 0;
private:
friend class timer_queue_set;
// Next timer queue in the set.
timer_queue_base* next_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
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