cool. that makes sense...and from what I understand, it makes perfect sense, that macromedia planned around that, and did some homework for us.
thanks! ...tony Tony Weeg Senior Web Developer UnCertified Advanced ColdFusion Developer Information System Design Navtrak, Inc. Mobile workforce monitoring, mapping & reporting www.navtrak.net 410.548.2337 -----Original Message----- From: Stephen Moretti [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 06, 2003 10:19 AM To: CF-Talk Subject: Re: yet another locking ? > > I definitely understand a race condition. what I don't > understand is this: If a race condition could occur, even > 1 time out of 1 hundred thousand iterations, isnt that enough > to lock it? I could imagine, if I had a shopping cart system, > that I would EVER want someone to know what my CC info > was, however, if a race condition is even somewhat a potentiality > then even the smallest chance of occurrence is too much of a risk > > wouldn't you agree? > Yes, but then every use of a shared scope variable isn't necessarily going to generate a race condition. Simply checking for an application scope variable and setting it to a default value will not cause a race condition, because the value will always be the same. Only if you're reading and then incrementing that application scope variable will you get a race condition. In your example of a shopping cart, locking was required in CF5 and lower because of other issues with session variables. Using session variables in a CFMX application you are unlikely to get a race condition, unless you're using frames in the design of your site. You don't get a race condition if you're only reading a variable and not updating, so you don't need a lock. Stephen ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
