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Revision 1.1 by root, Mon Nov 12 07:58:13 2007 UTC vs.
Revision 1.3 by root, Mon Nov 12 08:03:31 2007 UTC

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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 12 08:58:02 2007" /> 9 <meta name="created" content="Mon Nov 12 09:03:30 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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26</ul> 26</ul>
27</li> 27</li>
28<li><a href="#WATCHER_TYPES">WATCHER TYPES</a> 28<li><a href="#WATCHER_TYPES">WATCHER TYPES</a>
29<ul><li><a href="#struct_ev_io_is_my_file_descriptor_r">struct ev_io - is my file descriptor readable or writable</a></li> 29<ul><li><a href="#struct_ev_io_is_my_file_descriptor_r">struct ev_io - is my file descriptor readable or writable</a></li>
30<li><a href="#struct_ev_timer_relative_and_optiona">struct ev_timer - relative and optionally recurring timeouts</a></li> 30<li><a href="#struct_ev_timer_relative_and_optiona">struct ev_timer - relative and optionally recurring timeouts</a></li>
31<li><a href="#ev_periodic">ev_periodic</a></li> 31<li><a href="#ev_periodic_to_cron_or_not_to_cron_i">ev_periodic - to cron or not to cron it</a></li>
32<li><a href="#ev_signal_signal_me_when_a_signal_ge">ev_signal - signal me when a signal gets signalled</a></li> 32<li><a href="#ev_signal_signal_me_when_a_signal_ge">ev_signal - signal me when a signal gets signalled</a></li>
33<li><a href="#ev_child_wait_for_pid_status_changes">ev_child - wait for pid status changes</a></li> 33<li><a href="#ev_child_wait_for_pid_status_changes">ev_child - wait for pid status changes</a></li>
34<li><a href="#ev_idle_when_you_ve_got_nothing_bett">ev_idle - when you've got nothing better to do</a></li> 34<li><a href="#ev_idle_when_you_ve_got_nothing_bett">ev_idle - when you've got nothing better to do</a></li>
35<li><a href="#prepare_and_check_your_hooks_into_th">prepare and check - your hooks into the event loop</a></li> 35<li><a href="#prepare_and_check_your_hooks_into_th">prepare and check - your hooks into the event loop</a></li>
36</ul> 36</ul>
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87will not have this argument.</p> 87will not have this argument.</p>
88 88
89</div> 89</div>
90<h1 id="TIME_AND_OTHER_GLOBAL_FUNCTIONS">TIME AND OTHER GLOBAL FUNCTIONS</h1><p><a href="#TOP" class="toplink">Top</a></p> 90<h1 id="TIME_AND_OTHER_GLOBAL_FUNCTIONS">TIME AND OTHER GLOBAL FUNCTIONS</h1><p><a href="#TOP" class="toplink">Top</a></p>
91<div id="TIME_AND_OTHER_GLOBAL_FUNCTIONS_CONT"> 91<div id="TIME_AND_OTHER_GLOBAL_FUNCTIONS_CONT">
92<p>Libev represents time as a single floating point number. This type is 92<p>Libev represents time as a single floating point number, representing the
93(fractional) number of seconds since the (POSIX) epoch (somewhere near
94the beginning of 1970, details are complicated, don't ask). This type is
93called <code>ev_tstamp</code>, which is what you should use too. It usually aliases 95called <code>ev_tstamp</code>, which is what you should use too. It usually aliases
94to the double type in C.</p> 96to the double type in C.</p>
95<dl> 97<dl>
96 <dt>ev_tstamp ev_time ()</dt> 98 <dt>ev_tstamp ev_time ()</dt>
97 <dd> 99 <dd>
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478the timer, and again will automatically restart it if need be.</p> 480the timer, and again will automatically restart it if need be.</p>
479 </dd> 481 </dd>
480</dl> 482</dl>
481 483
482</div> 484</div>
483<h2 id="ev_periodic">ev_periodic</h2> 485<h2 id="ev_periodic_to_cron_or_not_to_cron_i">ev_periodic - to cron or not to cron it</h2>
484<div id="ev_periodic_CONTENT"> 486<div id="ev_periodic_to_cron_or_not_to_cron_i-2">
485<p>Periodic watchers are also timers of a kind, but they are very versatile 487<p>Periodic watchers are also timers of a kind, but they are very versatile
486(and unfortunately a bit complex).</p> 488(and unfortunately a bit complex).</p>
487<p>Unlike ev_timer's, they are not based on real time (or relative time) 489<p>Unlike ev_timer's, they are not based on real time (or relative time)
488but on wallclock time (absolute time). You can tell a periodic watcher 490but on wallclock time (absolute time). You can tell a periodic watcher
489to trigger &quot;at&quot; some specific point in time. For example, if you tell a 491to trigger &quot;at&quot; some specific point in time. For example, if you tell a

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