// | |
// time_traits.hpp | |
// ~~~~~~~~~~~~~~~ | |
// | |
// Copyright (c) 2003-2011 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_TIME_TRAITS_HPP | |
#define BOOST_ASIO_TIME_TRAITS_HPP | |
#if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
# pragma once | |
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
#include <boost/asio/detail/socket_types.hpp> // Must come before posix_time. | |
#include <boost/asio/detail/push_options.hpp> | |
#include <boost/date_time/posix_time/posix_time_types.hpp> | |
#include <boost/asio/detail/pop_options.hpp> | |
#include <boost/asio/detail/push_options.hpp> | |
namespace boost { | |
namespace asio { | |
/// Time traits suitable for use with the deadline timer. | |
template <typename Time> | |
struct time_traits; | |
/// Time traits specialised for posix_time. | |
template <> | |
struct time_traits<boost::posix_time::ptime> | |
{ | |
/// The time type. | |
typedef boost::posix_time::ptime time_type; | |
/// The duration type. | |
typedef boost::posix_time::time_duration duration_type; | |
/// Get the current time. | |
static time_type now() | |
{ | |
#if defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) | |
return boost::posix_time::microsec_clock::universal_time(); | |
#else // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) | |
return boost::posix_time::second_clock::universal_time(); | |
#endif // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK) | |
} | |
/// Add a duration to a time. | |
static time_type add(const time_type& t, const duration_type& d) | |
{ | |
return t + d; | |
} | |
/// Subtract one time from another. | |
static duration_type subtract(const time_type& t1, const time_type& t2) | |
{ | |
return t1 - t2; | |
} | |
/// Test whether one time is less than another. | |
static bool less_than(const time_type& t1, const time_type& t2) | |
{ | |
return t1 < t2; | |
} | |
/// Convert to POSIX duration type. | |
static boost::posix_time::time_duration to_posix_duration( | |
const duration_type& d) | |
{ | |
return d; | |
} | |
}; | |
} // namespace asio | |
} // namespace boost | |
#include <boost/asio/detail/pop_options.hpp> | |
#endif // BOOST_ASIO_TIME_TRAITS_HPP |