Re: [PHP4BETA] flock() - how does this baby work?

Precedence: bulk Hello Faisal, On 28-May-00 20:33:42, you wrote: >You can upgrade or degrade the lock without >unlocking first! You can move to a shared >lock from an exclusive lock... >Try the flock Unix man page. Once I read that it is not completely portable to do safe lock upgrading and downgrading. Anyway I realized that if you want to lock a file to get a shared lock to later get a exclusive lock to truncate the file you need to open the file with mode "r", get a shared lock, open the file again with mode "w" without closing the first handle to truncate its contents write the new contents and close the handles in reverse opening order. I am just not sure if this is a better solution than upgrading/downgrading locks and using the newly added truncate function. What do you think? Regards, Manuel Lemos Web Programming Components using PHP Classes. Look at: http://phpclasses.UpperDesign.com/?user=mlemos@acm.org -- E-mail: mlemos@acm.org URL: http://www.mlemos.e-na.net/ PGP key: http://www.mlemos.e-na.net/ManuelLemos.pgp --