On Wed, 2006-11-08 at 09:57 -0800, Erick Tryzelaar wrote: > signals are quite tricky to deal with when you got garbage collection :) > I found a mailing about how ocaml does it: >
> They're basically putting a placeholder function in the signal, and > sprinkle a check all over the code to see if any signals came through. > It's messy, but it allows you to have fully heaped and gc'd code. Any > other ways of doing this? It depends on OS support. A signal is basically a Felix procedure with a resume method which is called asynchronously. So you just run an ordinary Felix procedure in a pthread, and block waiting for a signal. The signal stores data somewhere, and the procedure picks it up. The data buffer will be finite of course .. if you get too many signals too fast you're screwed. This is one case where you probably HAVE to use global storage (absolute addressing) .. since the signal has no other context. -- John Skaller <skaller at users dot sf dot net> Felix, successor to C++: http://felix.sf.net ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Felix-language mailing list Felix-language@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/felix-language
