Gary, At this point, I'd settle for evidence that it is at least random. So far, it appears to do nothing until some type of "big" system event happens, almost to the point of acting like a pre-shutdown cleanup. I _thought_ I saw more predictable activity in another situation where I use finalization, but that might have been more that I was squeezing bugs out of my finalization code and was just happy to see the end of the walkbacks :) It could also be that the code in question is a little memory hungry and was (just a guess) kicking off more and more substantial GC activity and prodded finalization that way??
For laughs I tried switching the mutual exclusion semaphore to a mutex, and tried signaling the finalization semaphore myself. Neither seemed to improve the situation. In my current situation, finalization is really a coward's way out anyway. I have gnuplot giving me png images via pipes, and now want to begin to do that more than once per external process, and also to allow it to work if the goal is indeed to write files, etc. So far, I have been reading the image off the pipe and closing gnuplot more or less in one operation, which needs to change. With good coding, I should be able to retain ensured cleanup and still allow multiple interactions per OS process, and with fewer gnuplot instances created, some delay in finalizing them (if I do fail to ensure cleanup) should not be a big disaster. That said, I still think there is something wrong with the current finalization implementation. At best, it is nowhere near as predicatable as Dolphin's finlizer. Bill -----Original Message----- From: pharo-project-boun...@lists.gforge.inria.fr [mailto:pharo-project-boun...@lists.gforge.inria.fr] On Behalf Of Gary Chambers Sent: Wednesday, January 06, 2010 1:20 PM To: Pharo-project@lists.gforge.inria.fr Subject: Re: [Pharo-project] Finalization quirk Finalisation seems a bit random in Squeak/Pharo. Sometimes needs a globalGarbageCollect to kick it. Part of the reason we try to avoid excessive use (Sockets still remain etc.). Regards, Gary ----- Original Message ----- From: "Schwab,Wilhelm K" <bsch...@anest.ufl.edu> To: <Pharo-project@lists.gforge.inria.fr> Sent: Wednesday, January 06, 2010 6:12 PM Subject: [Pharo-project] Finalization quirk >I am trying to add finalization to something and appear to be at a point >that finalization does not happen until I open the process browser. Any >ideas? > > Bill > > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
