How Do I Expose to Users?

I didn't develop the module for general use though I can see the attraction for doing so. The module hasn't been tested for large a multi-user enviro. I cannot say what problems might result from two sessions trying to manipulate the server file sytem simultaneously.

I haven't thought much about this except a brief look at the System V IPC module that one can compile into php. It provides semaphores that allow safe resource sharing. Because it isn't a default php module, only drupal administrators that have access to the server php config can enable it. I think this would exclude a large proportion of the users who use prepackaged hosting solutions. If the semaphore capability is present, webfm could easily provide the negative feedback that a file or directory was 'busy' when a request tries to manipulate an object already under control by another session. I could provide this functionality as a configuration that can be enabled if the functions are available. I don't know when I'll find the time to experiment with this.