Hi Ben, Could you explain the term "race condition" please?
Jenny -----Original Message----- From: Ben Nadel [mailto:[EMAIL PROTECTED] Sent: 06 September 2006 23:30 To: CF-Talk Subject: RE: Locking Theory In my opinion, only use CFLock when you care if the race condition matters. Take setting SESSION values for instance. Let's say you have the following code: <cfset SESSION.FirstName = qUser.first_name /> This would NOT require a lock. Yes, it's shared data. Yes you could have conflicts. But the question is, does it matter? If a user has two pages that happen to run this code simultaneously, is there going to be a bad outcome if no locking? NOOOO. Both will set the appropriate value. Then take a session counter in the application: <cfset APPLICATION.SessionCount = ( APPLICATION.SessionCount + 1 ) /> Again, you are updating shared memory... But again, does it matter? Can this ever fire in such a way where it will get hurt? No. No matter what, sessions are going to be added. So the questions you need to ask yourself in this order are: 1. Is there a race condition? 2. Does the race condition matter? ........................ Ben Nadel www.bennadel.com Certified Advanced ColdFusion Developer Need Help? www.bennadel.com/ask-ben/ -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 06/09/2006 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:252324 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
