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@ -6,7 +6,7 @@ |
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<meta name="description" content="Pod documentation for libev" /> |
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<meta name="inputfile" content="<standard input>" /> |
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<meta name="outputfile" content="<standard output>" /> |
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<meta name="created" content="Mon Nov 12 09:32:51 2007" /> |
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<meta name="created" content="Mon Nov 12 09:35:17 2007" /> |
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<meta name="generator" content="Pod::Xhtml 1.57" /> |
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<link rel="stylesheet" href="http://res.tst.eu/pod.css"/></head> |
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<body> |
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@ -552,7 +552,7 @@ time:</p> |
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</pre> |
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<p>This doesn't mean there will always be 3600 seconds in between triggers, |
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but only that the the callback will be called when the system time shows a |
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full hour (UTC), or more correct, when the system time is evenly divisible |
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full hour (UTC), or more correctly, when the system time is evenly divisible |
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by 3600.</p> |
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<p>Another way to think about it (for the mathematically inclined) is that |
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<code>ev_periodic</code> will try to run the callback in this mode at the next possible |
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@ -565,8 +565,10 @@ ignored. Instead, each time the periodic watcher gets scheduled, the |
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reschedule callback will be called with the watcher as first, and the |
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current time as second argument.</p> |
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<p>NOTE: <i>This callback MUST NOT stop or destroy the periodic or any other |
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periodic watcher, ever, or make any event loop modificstions</i>. If you need |
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to stop it, return 1e30 (or so, fudge fudge) and stop it afterwards.</p> |
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periodic watcher, ever, or make any event loop modifications</i>. If you need |
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to stop it, return <code>now + 1e30</code> (or so, fudge fudge) and stop it afterwards.</p> |
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<p>Also, <i><this callback must always return a time that is later than the |
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passed <code>now</code> value </i>>. Not even <code>now</code> itself will be ok.</p> |
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<p>Its prototype is c<ev_tstamp (*reschedule_cb)(struct ev_periodic *w, |
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ev_tstamp now)>, e.g.:</p> |
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<pre> static ev_tstamp my_rescheduler (struct ev_periodic *w, ev_tstamp now) |
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Marc Alexander Lehmann
14 years ago