How to write a daemon program to monitor symbolic links?

[Lawrence D'Oliveiro]

In message <mailman.1942.1256325954.2807.python-list at python.org>, Peng Yu 
wrote:

> As far as I know, linux doesn't support a system level way to figure
> out all the symbolic links point to a give file.

Do you know of a system that does?

> I'm thinking of writing a daemon program which will build a database
> on all the symbolic links that point to any files. Later on, whenever
> I change or remove any file or symbolic link, I'll will notify the
> daemon process the changes.

What if the change is made to a removable/hot-pluggable volume while it's 
mounted on another system?