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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>datetime.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.2.18 --><center><a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> </center><hr><h1>datetime.h</h1><div class="fragment"><pre>00001 <span class="comment">//-< DATEIME.H >-----------------------------------------------------*--------*</span>00002 <span class="comment">// FastDB Version 1.0 (c) 1999 GARRET * ? *</span>00003 <span class="comment">// (Main Memory Database Management System) * /\| *</span>00004 <span class="comment">// * / \ *</span>00005 <span class="comment">// Created: 20-Nov-98 K.A. Knizhnik * / [] \ *</span>00006 <span class="comment">// Last update: 10-Dec-98 K.A. Knizhnik * GARRET *</span>00007 <span class="comment">//-------------------------------------------------------------------*--------*</span>00008 <span class="comment">// Date-time field type</span>00009 <span class="comment">//-------------------------------------------------------------------*--------*</span>00010 00011 <span class="preprocessor">#ifndef __DATETIME_H__</span>00012 <span class="preprocessor"></span><span class="preprocessor">#define __DATETIME_H__</span>00013 <span class="preprocessor"></span>00014 <span class="preprocessor">#include "stdtp.h"</span>00015 <span class="preprocessor">#include "class.h"</span>00016 00017 BEGIN_FASTDB_NAMESPACE00018 00019 <span class="keyword">class </span>FASTDB_DLL_ENTRY dbDateTime { 00020 int4 stamp;00021 <span class="keyword">public</span>:00022 <span class="keywordtype">bool</span> operator == (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00023 <span class="keywordflow">return</span> stamp == dt.stamp;00024 }00025 <span class="keywordtype">bool</span> operator != (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00026 <span class="keywordflow">return</span> stamp != dt.stamp;00027 }00028 <span class="keywordtype">bool</span> operator > (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00029 <span class="keywordflow">return</span> stamp > dt.stamp;00030 }00031 <span class="keywordtype">bool</span> operator >= (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00032 <span class="keywordflow">return</span> stamp >= dt.stamp;00033 }00034 <span class="keywordtype">bool</span> operator < (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00035 <span class="keywordflow">return</span> stamp < dt.stamp;00036 }00037 <span class="keywordtype">bool</span> operator <= (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00038 <span class="keywordflow">return</span> stamp <= dt.stamp;00039 }00040 <span class="keywordtype">int</span> operator - (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00041 <span class="keywordflow">return</span> stamp - dt.stamp;00042 }00043 <span class="keywordtype">int</span> operator + (dbDateTime <span class="keyword">const</span>& dt)<span class="keyword"> const </span>{ 00044 <span class="keywordflow">return</span> stamp + dt.stamp;00045 }00046 <span class="keyword">static</span> dbDateTime current() { 00047 <span class="keywordflow">return</span> dbDateTime(time(NULL));00048 }00049 dbDateTime(time_t tm) {00050 stamp = (int4)tm;00051 }00052 dbDateTime() { 00053 stamp = -1;00054 } 00055 <span class="keywordtype">bool</span> isValid()<span class="keyword"> const </span>{ 00056 <span class="keywordflow">return</span> stamp != -1;00057 }00058 00059 time_t asTime_t()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stamp; }00060 00061 <span class="keywordtype">void</span> clear() { stamp = -1; }00062 00063 dbDateTime(<span class="keywordtype">int</span> year, <span class="keywordtype">int</span> month, <span class="keywordtype">int</span> day, 00064 <span class="keywordtype">int</span> hour=0, <span class="keywordtype">int</span> min=0, <span class="keywordtype">int</span> sec = 0) 00065 { 00066 <span class="keyword">struct </span>tm t;00067 t.tm_year = year > 1900 ? year - 1900 : year;00068 t.tm_mon = month-1;00069 t.tm_mday = day;00070 t.tm_hour = hour;00071 t.tm_min = min;00072 t.tm_sec = sec;00073 t.tm_isdst = -1;00074 stamp = (int4)mktime(&t);00075 }00076 dbDateTime(<span class="keywordtype">int</span> hour, <span class="keywordtype">int</span> min) { 00077 stamp = (hour*60+min)*60;00078 }00079 00080 <span class="preprocessor">#if defined(HAVE_LOCALTIME_R) && !defined(NO_PTHREADS)</span>00081 <span class="preprocessor"></span> <span class="keywordtype">int</span> year() { 00082 <span class="keyword">struct </span>tm t;00083 time_t tt = (nat4)stamp;00084 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_year + 1900;00085 }00086 <span class="keywordtype">int</span> month() { <span class="comment">// 1..12</span>00087 <span class="keyword">struct </span>tm t;00088 time_t tt = (nat4)stamp;00089 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_mon + 1;00090 }00091 <span class="keywordtype">int</span> day() { <span class="comment">// 1..31</span>00092 <span class="keyword">struct </span>tm t;00093 time_t tt = (nat4)stamp;00094 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_mday;00095 }00096 <span class="keywordtype">int</span> dayOfYear() { <span class="comment">// 1..366</span>00097 <span class="keyword">struct </span>tm t;00098 time_t tt = (nat4)stamp;00099 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_yday+1;00100 }00101 <span class="keywordtype">int</span> dayOfWeek() { <span class="comment">// 1..7</span>00102 <span class="keyword">struct </span>tm t;00103 time_t tt = (nat4)stamp;00104 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_wday+1;00105 }00106 <span class="keywordtype">int</span> hour() { <span class="comment">// 0..24</span>00107 <span class="keyword">struct </span>tm t;00108 time_t tt = (nat4)stamp;00109 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_hour;00110 }00111 <span class="keywordtype">int</span> minute() { <span class="comment">// 0..59</span>00112 <span class="keyword">struct </span>tm t;00113 time_t tt = (nat4)stamp;00114 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_min;00115 }00116 <span class="keywordtype">int</span> second() { <span class="comment">// 0..59</span>00117 <span class="keyword">struct </span>tm t;00118 time_t tt = (nat4)stamp;00119 <span class="keywordflow">return</span> localtime_r(&tt, &t)->tm_sec;00120 }00121 <span class="keywordtype">char</span>* asString(<span class="keywordtype">char</span>* buf, <span class="keywordtype">int</span> buf_size, <span class="keywordtype">char</span> <span class="keyword">const</span>* format = <span class="stringliteral">"%c"</span>)<span class="keyword"> const </span>{ 00122 <span class="keyword">struct </span>tm t;00123 time_t tt = (nat4)stamp;00124 strftime(buf, buf_size, format, localtime_r(&tt, &t));00125 <span class="keywordflow">return</span> buf;⌨️ 快捷键说明
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