Bare in mind that there are multiple reasons to lock, not just server stability. There are also logical reasons to lock.
Consider this scenario: A file contains a number. You read the file, add one to the number, and save. Now, without a lock, its possible that two threads might read the file, and append the incorrect number. In this case, the lock is used for logical reason. ======================================================================= Raymond Camden, Principal Spectra Compliance Engineer for Macromedia Email : [EMAIL PROTECTED] Yahoo IM : morpheus "My ally is the Force, and a powerful ally it is." - Yoda > -----Original Message----- > From: Jim McAtee [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, January 08, 2002 11:53 AM > To: CF-Talk > Subject: Re: CFLOCK on files > > > Even if you can't explicitly lock a file during a CFFILE > operation... If CF > uses system-level function calls to read and write files > (that must be why > it's capable of being locked out of a file when another > application has it > locked), then you would think that during a CF file write > operation, the OS > must place a lock on the file. Or no? > > The reason I brought up the point in the first place is that > I need to read > and write a large number of small text files that are in use > by another, > very busy service. I'm hoping that by doing so, I wouldn't be causing > problems for that application, or for CF itself. > > Jim > > > ----- Original Message ----- > From: "Jochem van Dieten" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Monday, January 07, 2002 5:24 PM > Subject: Re: CFLOCK on files > > > > Kelly Matthews wrote: > > > > > as far as I know it's not something that can be done. > CFLOCK is strictly > for > > > sessions, etc. > > > > > > CFLOCK is for single threading CF. Whatever you do inside > that single > > threaded application is not of CFs concern. > > > > > > > CFFILE doesn't allow you to add a system level lock on a file nor > release a > > > lock. > > > > > > Unfortunately not. > > > > Jochem > ______________________________________________________________________ Why Share? Dedicated Win 2000 Server · PIII 800 / 256 MB RAM / 40 GB HD / 20 GB MO/XFER Instant Activation · $99/Month · Free Setup http://www.pennyhost.com/redirect.cfm?adcode=coldfusionc FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
