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Revision 1.46 by root, Mon Nov 26 09:52:14 2007 UTC vs.
Revision 1.47 by root, Mon Nov 26 10:20:43 2007 UTC

… …
4<head> 4<head>
5 <title>libev</title> 5 <title>libev</title>
6 <meta name="description" content="Pod documentation for libev" /> 6 <meta name="description" content="Pod documentation for libev" />
7 <meta name="inputfile" content="&lt;standard input&gt;" /> 7 <meta name="inputfile" content="&lt;standard input&gt;" />
8 <meta name="outputfile" content="&lt;standard output&gt;" /> 8 <meta name="outputfile" content="&lt;standard output&gt;" />
9 <meta name="created" content="Mon Nov 26 10:52:13 2007" /> 9 <meta name="created" content="Mon Nov 26 11:20:35 2007" />
10 <meta name="generator" content="Pod::Xhtml 1.57" /> 10 <meta name="generator" content="Pod::Xhtml 1.57" />
11<link rel="stylesheet" href="http://res.tst.eu/pod.css"/></head> 11<link rel="stylesheet" href="http://res.tst.eu/pod.css"/></head>
12<body> 12<body>
13<div class="pod"> 13<div class="pod">
14<!-- INDEX START --> 14<!-- INDEX START -->
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50</li> 50</li>
51<li><a href="#PREPROCESSOR_SYMBOLS_MACROS">PREPROCESSOR SYMBOLS/MACROS</a></li> 51<li><a href="#PREPROCESSOR_SYMBOLS_MACROS">PREPROCESSOR SYMBOLS/MACROS</a></li>
52<li><a href="#EXAMPLES">EXAMPLES</a></li> 52<li><a href="#EXAMPLES">EXAMPLES</a></li>
53</ul> 53</ul>
54</li> 54</li>
55<li><a href="#COMPLEXITIES">COMPLEXITIES</a></li>
55<li><a href="#AUTHOR">AUTHOR</a> 56<li><a href="#AUTHOR">AUTHOR</a>
56</li> 57</li>
57</ul><hr /> 58</ul><hr />
58<!-- INDEX END --> 59<!-- INDEX END -->
59 60
… …
1176 1177
1177 static void 1178 static void
1178 io_cb (ev_loop *loop, ev_io *w, int revents) 1179 io_cb (ev_loop *loop, ev_io *w, int revents)
1179 { 1180 {
1180 // set the relevant poll flags 1181 // set the relevant poll flags
1182 // could also call adns_processreadable etc. here
1181 struct pollfd *fd = (struct pollfd *)w-&gt;data; 1183 struct pollfd *fd = (struct pollfd *)w-&gt;data;
1182 if (revents &amp; EV_READ ) fd-&gt;revents |= fd-&gt;events &amp; POLLIN; 1184 if (revents &amp; EV_READ ) fd-&gt;revents |= fd-&gt;events &amp; POLLIN;
1183 if (revents &amp; EV_WRITE) fd-&gt;revents |= fd-&gt;events &amp; POLLOUT; 1185 if (revents &amp; EV_WRITE) fd-&gt;revents |= fd-&gt;events &amp; POLLOUT;
1184 } 1186 }
1185 1187
… …
1753</pre> 1755</pre>
1754 <p>And a <cite>ev_cpp.C</cite> implementation file that contains libev proper and is compiled:</p> 1756 <p>And a <cite>ev_cpp.C</cite> implementation file that contains libev proper and is compiled:</p>
1755<pre> #include &quot;ev_cpp.h&quot; 1757<pre> #include &quot;ev_cpp.h&quot;
1756 #include &quot;ev.c&quot; 1758 #include &quot;ev.c&quot;
1757 1759
1760
1761
1762
1758</pre> 1763</pre>
1764
1765</div>
1766<h1 id="COMPLEXITIES">COMPLEXITIES</h1><p><a href="#TOP" class="toplink">Top</a></p>
1767<div id="COMPLEXITIES_CONTENT">
1768 <p>In this section the complexities of (many of) the algorithms used inside
1769libev will be explained. For complexity discussions about backends see the
1770documentation for <code>ev_default_init</code>.</p>
1771 <p>
1772 <dl>
1773 <dt>Starting and stopping timer/periodic watchers: O(log skipped_other_timers)</dt>
1774 <dt>Changing timer/periodic watchers (by autorepeat, again): O(log skipped_other_timers)</dt>
1775 <dt>Starting io/check/prepare/idle/signal/child watchers: O(1)</dt>
1776 <dt>Stopping check/prepare/idle watchers: O(1)</dt>
1777 <dt>Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % 16))</dt>
1778 <dt>Finding the next timer per loop iteration: O(1)</dt>
1779 <dt>Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)</dt>
1780 <dt>Activating one watcher: O(1)</dt>
1781 </dl>
1782 </p>
1783
1784
1785
1786
1759 1787
1760</div> 1788</div>
1761<h1 id="AUTHOR">AUTHOR</h1><p><a href="#TOP" class="toplink">Top</a></p> 1789<h1 id="AUTHOR">AUTHOR</h1><p><a href="#TOP" class="toplink">Top</a></p>
1762<div id="AUTHOR_CONTENT"> 1790<div id="AUTHOR_CONTENT">
1763 <p>Marc Lehmann &lt;libev@schmorp.de&gt;.</p> 1791 <p>Marc Lehmann &lt;libev@schmorp.de&gt;.</p>

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