22. The World Outside
This chapter is mostly about stuff that happens “around” your Lisp program. Unless you’re on a Lisp Machine (see page 591), there’ll be an operating system underneath your Lisp system, and from its point of view, your application is just one of many. Likewise, there will be other programs on the same machine. We’ll discuss how you can start and interact with such other programs. We’ll also discuss how you can turn your Lisp code into something that’s behaving as if it were “just another program.”
We’ll then look at functionality related to time (which, too, is a part of the “external environment” according to the HyperSpec), and finally, there’ll be a recipe about garbage collection. The latter definitely isn’t happening ...
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