[Pharo-project] react on low space

Hi guys Is there an easy way to react on low space? Something like: SmalltalkImage isSpaceLow ifTrue: [ <suspend my process> ] The reason I'm asking is that I have a background process running that causes a low space condition but I never get around to opening the debugger and the image crashes on me. So for debugging purposes I'd like to periodically check the space that is left or alternatively be notified if low space is signalled. Any ideas? Thanks, Max