RE: Locking session variables in CF 4.0
Barney, Session,application server variables are not protected from simultaneous read/write access. Therefore you should always use CFLOCK tag when readin/writing to thyese variable scopes. If you don't, its possible that several requests could occur at same time. This could corrupt data or hang CF server. Nick Betts Software Engineer www.poulternet.com Leeds,UK -Original Message- From: Barney Stevenson [mailto:[EMAIL PROTECTED]] Sent: 19 December 2000 11:53 To: CF-Talk Subject: Locking session variables in CF 4.0 I am confused by the knotty subject of locking session variables. I know that it is recommended to lock all session variables in CF 4.5, but should I be locking if I am developing for CF 4.0. What will happen if I don't implement locks? Regards Barney = Barney Stevenson 77 Church Street Heaton Norris Stockport Cheshire SK4 1JH United Kingdom +44(0)161 429 6675 Pager: +44(0)7654 248701 Fax: +44(0)870 831 0837 "We work to become, not to acquire". Elbert Hubbard ~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Locking session variables in CF 4.0
Depending on your use of variables within the site - it may cause "hanging" of sessions variables, when people from the same network access the site. For example, when we created a site in eleven different languages (using session variables set via a log-in) people from the same company where logging in and getting the site in Arabic or Chinese! Use CFLock for this reason alone - there are other reasons too though (which I am sure others will bring up) James "You're a big man, but you're out of shape. With me it's a full time job. Now behave yourself." "Get Carter" 1964 -Original Message- From: Barney Stevenson [mailto:[EMAIL PROTECTED]] Sent: 19 December 2000 11:53 To: CF-Talk Subject: Locking session variables in CF 4.0 I am confused by the knotty subject of locking session variables. I know that it is recommended to lock all session variables in CF 4.5, but should I be locking if I am developing for CF 4.0. What will happen if I don't implement locks? Regards Barney = Barney Stevenson 77 Church Street Heaton Norris Stockport Cheshire SK4 1JH United Kingdom +44(0)161 429 6675 Pager: +44(0)7654 248701 Fax: +44(0)870 831 0837 "We work to become, not to acquire". Elbert Hubbard ~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Locking session variables in CF 4.0
Don't locking your application, session and server vars means crashing your cfserver, overwriting session and application information from other running applications. You are messing up your shared memory. This is why locking is that important. -Original Message- From: Barney Stevenson [mailto:[EMAIL PROTECTED]] Sent: dinsdag 19 december 2000 12:53 To: CF-Talk Subject: Locking session variables in CF 4.0 I am confused by the knotty subject of locking session variables. I know that it is recommended to lock all session variables in CF 4.5, but should I be locking if I am developing for CF 4.0. What will happen if I don't implement locks? Regards Barney = Barney Stevenson 77 Church Street Heaton Norris Stockport Cheshire SK4 1JH United Kingdom +44(0)161 429 6675 Pager: +44(0)7654 248701 Fax: +44(0)870 831 0837 "We work to become, not to acquire". Elbert Hubbard ~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
