note 110916 added to function.time-nanosleep
| From: | George at the-php-consultants dot com | Date: | Sat, 22 Dec 2012 11:52:17 +0000 |
| Subject: | note 110916 added to function.time-nanosleep | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-192648@lists.php.net to get a copy of this message | ||
I have a good delay instruction on windows. Other use a busy loop, I do not. Busy loops can be
exploited by hackers.
[code]
function nano_sleep($sec, $usec){
{
$start = gettimeofday();
for($i = 0;$timePassed / 100 < $usec;$i++){
$stop = gettimeofday();
$timePassed = 1000000 * ($stop['sec'] - $start['sec'])
+ $stop['usec'] - $start['usec'];
}
}
[/code]
This avoids the busy loop behaviour by using a for loop.
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Manual Page -- http://php.net/manual/en/function.time-nanosleep.php
Edit -- https://master.php.net/note/edit/110916
Del: integrated -- https://master.php.net/note/delete/110916/integrated
Del: useless -- https://master.php.net/note/delete/110916/useless
Del: bad code -- https://master.php.net/note/delete/110916/bad+code
Del: spam -- https://master.php.net/note/delete/110916/spam
Del: non-english -- https://master.php.net/note/delete/110916/non-english
Del: in docs -- https://master.php.net/note/delete/110916/in+docs
Del: other reasons-- https://master.php.net/note/delete/110916
Reject -- https://master.php.net/note/reject/110916
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