Re: Re: Virtual Disk for Perl

How would lock a resource on that file system? Every time you need to access a resource inside *one* file, you would deny access to any other concurrent request for another resource...

I had your idea many times, mostly because I needed the creation time, but always gave up and returned to some sort of db (with paths as primary keys for example). Use a DWIMish DBI module if you need portability.

Ciao, Valerio

Comment on Re: Re: Virtual Disk for Perl

Replies are listed 'Best First'.
Re: Virtual Disk for Perl by skx (Parson) on Mar 09, 2003 at 12:23 UTC
Another idea is to treat a zip file as a filesystem. You get compression for free, the file may be used by other processes, and you can work upon temporary files until you need to perform the updating - which simplifys the locking others have mentioned. Steve --- steve.org.uk	[reply]
Re: Re: Re: Virtual Disk for Perl by gmpassos (Priest) on Mar 08, 2003 at 04:04 UTC
Yes, when you are using the file to write or read you block all the virtual disk. But you only have the handle of the file opened when you are sending read/write commands. In other words, between this read/write commands different process can use the file. Wasn't easy to make, but it's working! ;-P Graciliano M. P. "The creativity is the expression of the liberty".	[reply]