Re: uh oh, I defined a resoruce

Sancar Saran schreef:

On Sunday 13 January 2008 21:42:28 Jochem Maas wrote:

no race conditions occur in code written in php? true that there is no direct race conditions that can occur as a direct result of running code but obviously you've never dealt with multi-user systems using a databse backend, or file-writing based tools used in a web-environment (e.g. template output caching) or anything that uses shared memory or trying to guanrantee that a command-line script runs as a singleton. to name but a few examples that can most definitely be prone to race-conditions.

Hmmm interesting so you mean $GLOBALS['language'] = memcached->get('language'); race condition prone than function hede() { global $language $language = memcached->get('language'); }

no not in the slightest. both those bits of code are identical for one (apart from the fact that neither are valid syntax). and whatever your trying to point out it's beside the point (I think). any possible race condition will be occuring with the code that *sets* data into memcache (or whatever). I don't claim to know everything there is no know about race-conditions but you can very easily program them into a php app that's for sure. please do some reading on the matter (e.g. google 'memcache+race+condition') - I'm quite sure you'll find some interesting material - I know I did (just now)

Regards Sancar