Re: [APC-DEV] apc_delete_file() ?

Hey David,

It's been on my list to code up a file removal function that can be  
accessed from user space ( I haven't started so you've got my vote on  
this if you want patch something up....).

I'm also going to need to add a utility to grab both functions and  
user variables via a regex function more effectively (I want to start  
on that today) so I'd probably use the two functions in conjunction  
if I wanted to do a regex delete, and make the argument to the delete  
function a string or optional array so it's more flexible (ie: if you  
already have a list of functions as an array).  I'm thinking though  
that searching would be most easily implemented based upon prefixes  
rather than more complicated regex expressions (falling back to a  
slower regex comparison would be possible), does this fit your use  
case(s) as well?

These two options may work well for another task I need which is  
removing groupings of files that could be considered "packages".  But  
ideally if one file was removed due to a TTL timeout etc, all it's  
sibling files would go to, which I'm not sure yet how I see being  
implemented in a generic/flexible way.

-shire

On May 14, 2008, at 8:39 AM, David Sklar wrote:

> I'd like to add a function that removes a specific compiled file from
> the cache. My initial thought is to have the function, given a
> filename:
>
> - use apc_cache_make_file_key() to determine the cache key for the  
> filename
> - use apc_cache_find_slot() to determine the slot for the cache key
> - call remove_slot() on the slot to either free it immediately or put
> it on the deleted list if its refcount is > 0
> - and optionally have the function call process_pending_removals() to
> flush the deleted list (if possible)
>
> Another possibility, more useful for bulk deletes (at least on
> fullpath entries) could be something like apc_delete_file($pattern)
> which deletes all files whose names match a given pattern.  This could
> work internally like apc_cache_clear() except that before calling
> remove_slot() on  a particular slot, it would compare the pattern to
> the fullpath in the key and only remove if it matches.
>
> Do either/both of these approachese sound reasonable? Something
> obvious I'm missing?
>
> Thanks,
> David
>
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