premiere-libtorrent/docs/reference-Time.html

198 lines
8.8 KiB
HTML
Raw Normal View History

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
2013-12-29 05:29:57 +01:00
<meta name="generator" content="Docutils 0.11: http://docutils.sourceforge.net/" />
<title>Time</title>
<meta name="author" content="Arvid Norberg, arvid&#64;rasterbar.com" />
<link rel="stylesheet" type="text/css" href="../../css/base.css" />
<link rel="stylesheet" type="text/css" href="../../css/rst.css" />
<script type="text/javascript">
/* <![CDATA[ */
(function() {
var s = document.createElement('script'), t = document.getElementsByTagName('script')[0];
s.type = 'text/javascript';
s.async = true;
s.src = 'http://api.flattr.com/js/0.6/load.js?mode=auto';
t.parentNode.insertBefore(s, t);
})();
/* ]]> */
</script>
<link rel="stylesheet" href="style.css" type="text/css" />
<style type="text/css">
/* Hides from IE-mac \*/
* html pre { height: 1%; }
/* End hide from IE-mac */
</style>
</head>
<body>
<div class="document" id="time">
<div id="container">
<div id="headerNav">
<ul>
<li class="first"><a href="/">Home</a></li>
<li><a href="../../products.html">Products</a></li>
<li><a href="../../contact.html">Contact</a></li>
</ul>
</div>
<div id="header">
<div id="orange"></div>
<div id="logo"></div>
</div>
<div id="main">
<h1 class="title">Time</h1>
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr><th class="docinfo-name">Author:</th>
<td>Arvid Norberg, <a class="last reference external" href="mailto:arvid&#64;rasterbar.com">arvid&#64;rasterbar.com</a></td></tr>
<tr><th class="docinfo-name">Version:</th>
<td>1.0.0</td></tr>
</tbody>
</table>
<div class="contents topic" id="table-of-contents">
<p class="topic-title first">Table of contents</p>
<ul class="simple">
<li><a class="reference internal" href="#time-duration" id="id17">time_duration</a></li>
<li><a class="reference internal" href="#ptime" id="id18">ptime</a></li>
</ul>
</div>
<p>This section contains fundamental time types used internall by
libtorrent and exposed through various places in the API. The two
basic types are <tt class="docutils literal">ptime</tt> and <tt class="docutils literal">time_duration</tt>. The first represents
a point in time and the second the difference between two points
in time.</p>
<p>The internal representation of these types is implementation defined
and they can only be constructed via one of the construction functions
that take a well defined time unit (seconds, minutes, etc.). They can
only be turned into well defined time units by the accessor functions
(total_microseconds(), etc.).</p>
<div class="note">
<p class="first admonition-title">Note</p>
<p class="last">In a future version of libtorrent, these types will be replaced
by the standard timer types from <tt class="docutils literal"><span class="pre">std::chrono</span></tt>.</p>
</div>
<a name="time_duration"></a><div class="section" id="time-duration">
<h1>time_duration</h1>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/ptime.hpp">libtorrent/ptime.hpp</a>&quot;</p>
<p>libtorrent <a class="reference external" href="reference-Time.html#time_duration">time_duration</a> type</p>
<pre class="literal-block">
struct time_duration
{
time_duration&amp; <strong>operator-=</strong> (time_duration const&amp; c);
time_duration <strong>operator+</strong> (time_duration const&amp; c);
time_duration&amp; <strong>operator+=</strong> (time_duration const&amp; c);
time_duration <strong>operator/</strong> (int rhs) const;
explicit <strong>time_duration</strong> (boost::int64_t d);
time_duration <strong>operator-</strong> (time_duration const&amp; c);
time_duration&amp; <strong>operator*=</strong> (int v);
};
</pre>
<a name="ptime"></a></div>
<div class="section" id="ptime">
<h1>ptime</h1>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/ptime.hpp">libtorrent/ptime.hpp</a>&quot;</p>
<p>This type represents a point in time.</p>
<pre class="literal-block">
struct ptime
{
ptime&amp; <strong>operator-=</strong> (time_duration rhs);
ptime&amp; <strong>operator+=</strong> (time_duration rhs);
};
</pre>
<a name="is_negative()"></a><div class="section" id="is-negative">
<h2>is_negative()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/ptime.hpp">libtorrent/ptime.hpp</a>&quot;</p>
<pre class="literal-block">
inline bool <strong>is_negative</strong> (time_duration dt);
</pre>
<a name="operator+()"></a>
<a name="operator-()"></a></div>
<div class="section" id="operator-operator">
<h2>operator+() operator-()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/ptime.hpp">libtorrent/ptime.hpp</a>&quot;</p>
<pre class="literal-block">
inline ptime <strong>operator+</strong> (time_duration lhs, ptime rhs);
inline ptime <strong>operator+</strong> (ptime lhs, time_duration rhs);
inline time_duration <strong>operator-</strong> (ptime lhs, ptime rhs);
inline ptime <strong>operator-</strong> (ptime lhs, time_duration rhs);
</pre>
<a name="time_now()"></a></div>
<div class="section" id="time-now">
<h2>time_now()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/time.hpp">libtorrent/time.hpp</a>&quot;</p>
<pre class="literal-block">
ptime const&amp; <strong>time_now</strong> ();
</pre>
<p>returns the current time, as represented by <a class="reference external" href="reference-Time.html#ptime">ptime</a>. The
resolution of this timer is about 100 ms.</p>
<a name="time_now_hires()"></a></div>
<div class="section" id="time-now-hires">
<h2>time_now_hires()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/time.hpp">libtorrent/time.hpp</a>&quot;</p>
<pre class="literal-block">
ptime <strong>time_now_hires</strong> ();
</pre>
<p>returns the current time as represented by <a class="reference external" href="reference-Time.html#ptime">ptime</a>. This is
more expensive than <a class="reference external" href="reference-Time.html#time_now()">time_now()</a>, but provides as high resolution
as the operating system can provide.</p>
<a name="min_time()"></a>
<a name="max_time()"></a></div>
<div class="section" id="min-time-max-time">
<h2>min_time() max_time()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/time.hpp">libtorrent/time.hpp</a>&quot;</p>
<pre class="literal-block">
ptime <strong>max_time</strong> ();
ptime <strong>min_time</strong> ();
</pre>
<p>the earliest and latest possible time points
representable by <a class="reference external" href="reference-Time.html#ptime">ptime</a>.</p>
<a name="microsec()"></a>
<a name="minutes()"></a>
<a name="hours()"></a>
<a name="milliseconds()"></a>
<a name="seconds()"></a></div>
<div class="section" id="microsec-minutes-hours-milliseconds-seconds">
<h2>microsec() minutes() hours() milliseconds() seconds()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/time.hpp">libtorrent/time.hpp</a>&quot;</p>
<pre class="literal-block">
time_duration <strong>microsec</strong> (boost::int64_t s);
time_duration <strong>seconds</strong> (boost::int64_t s);
time_duration <strong>milliseconds</strong> (boost::int64_t s);
time_duration <strong>minutes</strong> (boost::int64_t s);
time_duration <strong>hours</strong> (boost::int64_t s);
</pre>
<p>returns a <a class="reference external" href="reference-Time.html#time_duration">time_duration</a> representing the specified number of seconds, milliseconds
microseconds, minutes and hours.</p>
<a name="total_seconds()"></a>
<a name="total_microseconds()"></a>
<a name="total_milliseconds()"></a></div>
<div class="section" id="total-seconds-total-microseconds-total-milliseconds">
<h2>total_seconds() total_microseconds() total_milliseconds()</h2>
<p>Declared in &quot;<a class="reference external" href="../include/libtorrent/time.hpp">libtorrent/time.hpp</a>&quot;</p>
<pre class="literal-block">
boost::int64_t <strong>total_seconds</strong> (time_duration td);
boost::int64_t <strong>total_milliseconds</strong> (time_duration td);
boost::int64_t <strong>total_microseconds</strong> (time_duration td);
</pre>
<p>returns the number of seconds, milliseconds and microseconds
a <a class="reference external" href="reference-Time.html#time_duration">time_duration</a> represents.</p>
</div>
</div>
</div>
<div id="footer">
<span>Copyright &copy; 2005-2013 Rasterbar Software.</span>
</div>
</div>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-1599045-1";
urchinTracker();
</script>
</div>
</body>
</html>