author | Mike Kinghan <mikek@symbian.org> |
Tue, 13 Jul 2010 15:21:54 +0100 | |
changeset 24 | 936784880b21 |
parent 2 | 39c28ec933dd |
permissions | -rwxr-xr-x |
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#ifndef DATE_CLOCK_DEVICE_HPP___ |
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#define DATE_CLOCK_DEVICE_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: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ |
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*/ |
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#include "boost/date_time/c_time.hpp" |
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namespace boost { |
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namespace date_time { |
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//! A clock providing day level services based on C time_t capabilities |
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/*! This clock uses Posix interfaces as its implementation and hence |
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* uses the timezone settings of the operating system. Incorrect |
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* user settings will result in incorrect results for the calls |
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* to local_day. |
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*/ |
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template<class date_type> |
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class day_clock |
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{ |
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public: |
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typedef typename date_type::ymd_type ymd_type; |
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//! Get the local day as a date type |
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static date_type local_day() |
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{ |
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return date_type(local_day_ymd()); |
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} |
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//! Get the local day as a ymd_type |
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static typename date_type::ymd_type local_day_ymd() |
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{ |
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::std::tm result; |
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::std::tm* curr = get_local_time(result); |
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return ymd_type(curr->tm_year + 1900, |
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curr->tm_mon + 1, |
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curr->tm_mday); |
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} |
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//! Get the current day in universal date as a ymd_type |
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static typename date_type::ymd_type universal_day_ymd() |
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{ |
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::std::tm result; |
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::std::tm* curr = get_universal_time(result); |
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return ymd_type(curr->tm_year + 1900, |
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curr->tm_mon + 1, |
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curr->tm_mday); |
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} |
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//! Get the UTC day as a date type |
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static date_type universal_day() |
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{ |
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return date_type(universal_day_ymd()); |
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} |
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private: |
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static ::std::tm* get_local_time(std::tm& result) |
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{ |
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::std::time_t t; |
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::std::time(&t); |
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return c_time::localtime(&t, &result); |
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} |
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static ::std::tm* get_universal_time(std::tm& result) |
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{ |
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::std::time_t t; |
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::std::time(&t); |
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return c_time::gmtime(&t, &result); |
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} |
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}; |
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} } //namespace date_time |
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#endif |