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<h1>time.h</h1><a href="time_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">///</span>
<a name="l00002"></a>00002 <span class="comment"></span><span class="comment">/// \file time.h</span>
<a name="l00003"></a>00003 <span class="comment"></span><span class="comment">/// Time related conversion routines.</span>
<a name="l00004"></a>00004 <span class="comment"></span><span class="comment">/// time_t is the POSIX time.</span>
<a name="l00005"></a>00005 <span class="comment"></span><span class="comment">/// min1900_t is the minutes from Jan 1, 1900</span>
<a name="l00006"></a>00006 <span class="comment"></span><span class="comment">///</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">/*</span>
<a name="l00009"></a>00009 <span class="comment"> Copyright (C) 2005-2010, Net Direct Inc. (http://www.netdirect.ca/)</span>
<a name="l00010"></a>00010 <span class="comment"></span>
<a name="l00011"></a>00011 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00012"></a>00012 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00013"></a>00013 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00014"></a>00014 <span class="comment"> (at your option) any later version.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00017"></a>00017 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> See the GNU General Public License in the COPYING file at the</span>
<a name="l00021"></a>00021 <span class="comment"> root directory of this project for more details.</span>
<a name="l00022"></a>00022 <span class="comment">*/</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#ifndef __BARRY_TIME_H__</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#define __BARRY_TIME_H__</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="dll_8h.html" title="Macros for handling DLL/library API visibility.">dll.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <sys/time.h></span> <span class="comment">// for struct timespec</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <<a class="code" href="time_8h.html" title="Time related conversion routines.">time.h</a>></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <stdint.h></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="comment">//</span>
<a name="l00033"></a>00033 <span class="comment">// Calculate the number of minutes between Jan 01, 1900 and Jan 01, 1970</span>
<a name="l00034"></a>00034 <span class="comment">//</span>
<a name="l00035"></a>00035 <span class="comment">// There are 17 leap years between 1900 and 1970</span>
<a name="l00036"></a>00036 <span class="comment">// (1969-1900) / 4 = 17.25</span>
<a name="l00037"></a>00037 <span class="comment">//</span>
<a name="l00038"></a>00038 <span class="comment">// 1900 itself is not a leap year (not divisible by 400)</span>
<a name="l00039"></a>00039 <span class="comment">//</span>
<a name="l00040"></a>00040 <span class="preprocessor">#define DAY_MINUTES (24 * 60)</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define YEAR_MINUTES (365 * DAY_MINUTES)</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#define LEAP_YEAR_COUNT ((1970-1901) / 4)</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#define YEAR_COUNT (1970 - 1900)</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span>
<a name="l00045"></a>00045 <span class="comment">// therefore, the difference between standard C's time and min1900_t's</span>
<a name="l00046"></a>00046 <span class="comment">// time in minutes:</span>
<a name="l00047"></a>00047 <span class="preprocessor">#define STDC_MIN1900_DIFF (YEAR_COUNT * YEAR_MINUTES + LEAP_YEAR_COUNT * DAY_MINUTES)</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>
<a name="l00049"></a>00049 <span class="keyword">namespace </span>Barry {
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">typedef</span> <span class="keywordtype">long</span> min1900_t;
<a name="l00052"></a>00052
<a name="l00053"></a>00053 BXEXPORT min1900_t time2min(time_t t);
<a name="l00054"></a>00054 BXEXPORT time_t min2time(min1900_t m);
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="comment">// FIXME - turn TimeZone into a C typedef and wrap this in extern "C"</span>
<a name="l00057"></a>00057 <span class="comment">// so the data can be used in both C and C++ libraries</span>
<a name="l00058"></a><a class="code" href="structBarry_1_1TimeZone.html">00058</a> <span class="keyword">struct </span>BXEXPORT <a class="code" href="structBarry_1_1TimeZone.html">TimeZone</a>
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Code;
<a name="l00061"></a>00061 <span class="keywordtype">signed</span> <span class="keywordtype">short</span> HourOffset;
<a name="l00062"></a>00062 <span class="keywordtype">signed</span> <span class="keywordtype">short</span> MinOffset;
<a name="l00063"></a>00063 <span class="keyword">const</span> <span class="keywordtype">char</span> *Name;
<a name="l00064"></a>00064 };
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">// FIXME - put this somewhere for both C and C++</span>
<a name="l00067"></a>00067 <span class="preprocessor">#define TIME_ZONE_CODE_ERR 0xffff</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span>
<a name="l00069"></a>00069 BXEXPORT <span class="keyword">const</span> <a class="code" href="structBarry_1_1TimeZone.html">TimeZone</a>* <a class="code" href="namespaceBarry.html#ab664177c654a0cb41bc8fc40b39eabda" title="Returns a pointer to an array of TimeZone structs.">GetTimeZoneTable</a>();
<a name="l00070"></a>00070 BXEXPORT <span class="keyword">const</span> <a class="code" href="structBarry_1_1TimeZone.html">TimeZone</a>* <a class="code" href="namespaceBarry.html#a8b42d46bf7b5cb8f4d9e0bde1d61f226" title="Searches the internal timezone code table for the given Code and returns a pointer...">GetTimeZone</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Code);
<a name="l00071"></a>00071 BXEXPORT <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <a class="code" href="namespaceBarry.html#a56ac220ad3edcfbefcebb35c685212d1" title="Searches the internal timezone table for the first matching Code.">GetTimeZoneCode</a>(<span class="keywordtype">signed</span> <span class="keywordtype">short</span> HourOffset,
<a name="l00072"></a>00072 <span class="keywordtype">signed</span> <span class="keywordtype">short</span> MinOffset = 0);
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="comment">// Message time conversion stuff</span>
<a name="l00075"></a>00075 BXEXPORT time_t <a class="code" href="namespaceBarry.html#a30255c53ebed390fc98a50e9c5d49984" title="This routine takes the day of the year and returns a time_t adjusted from the first...">DayToDate</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Day );
<a name="l00076"></a>00076 BXEXPORT time_t <a class="code" href="namespaceBarry.html#a2f4e6ee9d4afc6a26ae0166329609600" title="Localize the funky math used to convert a Blackberry message timestamp into a time_t...">Message2Time</a>(uint16_t r_date, uint16_t r_time);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">// Thread timeout creation</span>
<a name="l00079"></a>00079 BXEXPORT <span class="keyword">struct </span>timespec* <a class="code" href="namespaceBarry.html#a0e1dc80f82d25739631c39b545f812bb" title="Creates a pthread_cond_timedwait() compatible timespec struct, based on a given timeout...">ThreadTimeout</a>(<span class="keywordtype">int</span> timeout_ms, <span class="keyword">struct</span> timespec *spec);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 } <span class="comment">// namespace Barry</span>
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="preprocessor">#endif</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
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