84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
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#ifndef DATE_TIME_TIME_CLOCK_HPP___
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#define DATE_TIME_TIME_CLOCK_HPP___
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/* Copyright (c) 2002,2003,2005 CrystalClear Software, Inc.
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* Use, modification and distribution is subject to the
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* Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
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* Author: Jeff Garland, Bart Garst
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* $Date$
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*/
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/*! @file time_clock.hpp
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This file contains the interface for clock devices.
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*/
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#include "boost/date_time/c_time.hpp"
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#include "boost/shared_ptr.hpp"
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namespace boost {
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namespace date_time {
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//! A clock providing time level services based on C time_t capabilities
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/*! This clock provides resolution to the 1 second level
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*/
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template<class time_type>
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class second_clock
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{
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public:
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typedef typename time_type::date_type date_type;
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typedef typename time_type::time_duration_type time_duration_type;
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static time_type local_time()
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{
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::std::time_t t;
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::std::time(&t);
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::std::tm curr, *curr_ptr;
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//curr_ptr = ::std::localtime(&t);
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curr_ptr = c_time::localtime(&t, &curr);
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return create_time(curr_ptr);
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}
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//! Get the current day in universal date as a ymd_type
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static time_type universal_time()
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{
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::std::time_t t;
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::std::time(&t);
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::std::tm curr, *curr_ptr;
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//curr_ptr = ::std::gmtime(&t);
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curr_ptr = c_time::gmtime(&t, &curr);
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return create_time(curr_ptr);
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}
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template<class time_zone_type>
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static time_type local_time(boost::shared_ptr<time_zone_type> tz_ptr)
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{
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typedef typename time_type::utc_time_type utc_time_type;
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utc_time_type utc_time = second_clock<utc_time_type>::universal_time();
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return time_type(utc_time, tz_ptr);
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}
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private:
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static time_type create_time(::std::tm* current)
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{
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date_type d(static_cast<unsigned short>(current->tm_year + 1900),
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static_cast<unsigned short>(current->tm_mon + 1),
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static_cast<unsigned short>(current->tm_mday));
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time_duration_type td(current->tm_hour,
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current->tm_min,
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current->tm_sec);
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return time_type(d,td);
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}
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};
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} } //namespace date_time
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#endif
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