On Mar 29, 2011 10:42 AM, <oleg@okmij.org> wrote:
>

> I'm keen to hear of the example that seem to require Iteratee's
> allocating additional resources. I'd really like to see if any of such
> cases can be cast it terms of regions, implemented via iterated
> Iteratee transformers.

Hello Oleg,

The first example which comes to mind - because I recently implemented this - is HTTP uploads: the input stream can hold N files (the value of N not known ahead of time), and each upload  can go to a separate temporary file.

If the request stream fails early (e.g. client browser closes connection), any already-created temp files and any open file handles must be cleaned up.