how to get current post id in a plugin when editing a page

Hello,

I am trying to create a static xml for every page in blog. I want to make a plugin that will add this functionality to “publish_post” and “edit_post” hooks so every time I edit some page the static xml will be refreshed. The problem is that I don’t know how to get the current page title (About, etc) that I’m editing. Is there a way to get the current post id like get_post($this);?

thank you!