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84 lines
2.1 KiB
84 lines
2.1 KiB
// |
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// time_traits.hpp |
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// ~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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// |
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#ifndef BOOST_ASIO_TIME_TRAITS_HPP |
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#define BOOST_ASIO_TIME_TRAITS_HPP |
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#if defined(_MSC_VER) && (_MSC_VER >= 1200) |
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# pragma once |
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
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#include <boost/asio/detail/socket_types.hpp> // Must come before posix_time. |
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#include <boost/asio/detail/push_options.hpp> |
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#include <boost/date_time/posix_time/posix_time_types.hpp> |
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#include <boost/asio/detail/pop_options.hpp> |
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#include <boost/asio/detail/push_options.hpp> |
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namespace boost { |
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namespace asio { |
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/// Time traits suitable for use with the deadline timer. |
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template <typename Time> |
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struct time_traits; |
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/// Time traits specialised for posix_time. |
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template <> |
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struct time_traits<boost::posix_time::ptime> |
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{ |
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/// The time type. |
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typedef boost::posix_time::ptime time_type; |
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/// The duration type. |
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typedef boost::posix_time::time_duration duration_type; |
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/// Get the current time. |
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static time_type now() |
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{ |
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#if defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) |
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return boost::posix_time::microsec_clock::universal_time(); |
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#else // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) |
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return boost::posix_time::second_clock::universal_time(); |
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#endif // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) |
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} |
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/// Add a duration to a time. |
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static time_type add(const time_type& t, const duration_type& d) |
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{ |
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return t + d; |
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} |
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/// Subtract one time from another. |
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static duration_type subtract(const time_type& t1, const time_type& t2) |
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{ |
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return t1 - t2; |
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} |
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/// Test whether one time is less than another. |
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static bool less_than(const time_type& t1, const time_type& t2) |
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{ |
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return t1 < t2; |
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} |
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/// Convert to POSIX duration type. |
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static boost::posix_time::time_duration to_posix_duration( |
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const duration_type& d) |
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{ |
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return d; |
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} |
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}; |
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} // namespace asio |
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} // namespace boost |
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#include <boost/asio/detail/pop_options.hpp> |
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#endif // BOOST_ASIO_TIME_TRAITS_HPP
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