News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Joshua Thijssen:
PHP's Resources and garbage collection
July 12, 2013 @ 10:54:34

Joshua Thijssen has put together a new post with details about garbage collection in PHP and a "nice bug/feature/whatsmathing" he found related to it and its performance.

I was playing around with writing a daemon and if you have any experience writing daemons (in any language), there are a few rules you have to live by. For instance, setting your effective uid and gid to a non-privileged user (in case you needed to do some privileged initialization, like opening a socket on a tcp port < 1024), setting the process as a group leader with posix_setsid(), and redirecting stdio file descriptions. And here something went wrong which took a while to find and fix..

He was creating a daemon and the script would just exit without a warning and not continue running. He narrowed down the issue to a few lines (with fopen and fclose) and went to debug it with strace to really see what was happening. He found some unexpected calls in the stack trace and, after some more digging, finally figured out it was a problem of both scope and cleanup that was resulting in the extra calls.

0 comments voice your opinion now!
garbage collection resource stdin stdout stderr bug

Link: http://www.adayinthelifeof.nl/2013/07/10/phps-resources-and-garbage-collection

blog comments powered by Disqus

Similar Posts

Bernhard Schussek: Puli: Powerful Resource Management for PHP

Community News: PHP 5.1.3RC3 Released

Cyberlot's Blog: PHP bugs, whos responsible? Do they even read them?

PHP.net: PHP 4.4.3 Released

Kevin Schroeder's Blog: Your favorite PHP sites (based off of Facebook responses)


Community Events





Don't see your event here?
Let us know!


artisanfiles library security podcast release laravel list introduction opinion series conference symfony community language interview framework tool version composer voicesoftheelephpant

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework