Squeak-dev October 2000

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112 participants
424 discussions

OPML parser in Squeak
by Bruce ONeel 29 Oct '00

29 Oct '00

Hi, There is a screenshot of a simple OPML parser in Squeak at http://homepage.iprolink.ch/~bioneel/beo/Squeak/OPML-Squeak.jpg OPML is a XML format for outlines. This was parsing the playlist example on the OPML Spec page at: http://radiodiscuss.userland.com/opmlSpec I'm sure there are still some bugs but it is starting to come together. More about Squeak at http://www.squeak.org. I'll release the changeset in a bit if someone is interested. cheers bruce

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Squeak 2.7 on iPAQ
by Jörn Eyrich 29 Oct '00

29 Oct '00

Okay, I got a bit sidetracked here when I discovered that there are already ports for a C64 emulator and MAME available for the iPAQ ;-) (playing with this 4-way-pad doesn't work all that well, by the way, in my opinion) However, thanks to the work Yasuhiro Kurahara and Thomas Nelson did for the Jornadas, I was able to get an ARM Debug version of the 2.7 WinCE VM running on the iPAQ 36xx. It is about 480K and does about 3,8 Mbytecodes/s, 191 Ksends/s on "0 tinyBenchmarks". I use a 760K image obtained by "Smalltalk majorShrink; abandonSources; lastRemoval" The problems I encounter are: - part of the squeak window is hidden under the WinCE menu bar (also noted by Yasuhiro Kurahara) - sometimes the squeak window is not redrawn - I can't get to the right button menu - I don't know how to emulate the "Alt" modifier key (these last two items conspire to make it impossible for me to do a simple doIt) - I can't see any new browsers or workspaces that I open (though they appear in the list after i do "find windows...") - collapsed windows don't have a title (only close and maximize icons seperated by free space) - moving/collapsing windows seems to break sometimes, then while trying to open the debugger, there seems to be another problem so I get a walkback that ranges from a "ZeroDivide" at the bottom of the screen through a "Fraction>>dNU" to a "MNU: bitAnd:" at the top, but unfortunately ... - ... I can't find a SqueakDebug.log containing the whole story (- after that you have 2MB RAM less available, but I guess that's WinCE for you) Next thing is trying to do the same for Andreas Raab's latest (pre-2.8)sources. Joern

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Squeak for Pocket PostPet
by Kazuhiro ABE 29 Oct '00

29 Oct '00

Hi, I ported Squeak to NTT DoCoMo's Pocket PostPet(aka Popope). Popope is a Japanese PDA that is made for PostPet only. http://www.so-net.ne.jp/pocket/ (in Japanese) PostPet is a mailer that used a pet(bear, rabbit, cat, etc.) as an agent. It is very popular in Japan. http://www.ap.sonystyle.com/postpet/ (in English) Popope has VR4121A CPU and Windows CE 2.12J as embedded OS. But it cannot run any applications for PsPC and H/PC usually. It does not have standard Windows GUI. But Zoroyoshi-san found the loophole. AutoRun.exe at \Multimedia Card\CE\R4100 is executed at the same time as inserting the MMC. http://www.softclub.co.jp/~zoro/popo/program.html (in Japanese) And Kurahara-san showed information to build VM with Microsoft eMbedded Visual Tools 3.0. So I can build a VM for Popope. http://member.nifty.ne.jp/abee/PopopeSqueak.ZIP AutoRun.exe must be at \Multimedia Card\CE\R4100. mini.image must be at \Multimedia Card. mini.changes must be at \Multimedia Card. I think that Popope is a world smallest Squeak machine with color screen and keyboard. -- Kazuhiro Abe abee.abe(a)nifty.ne.jp

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build environment for WinCE?
by Craig Latta 29 Oct '00

29 Oct '00

Hi-- I'd like to build a WinCE VM. Is there a working eMbedded Visual Tools workspace available somewhere? 'Sorry if this has already been covered; I couldn't find it. thanks, -C

3 2

[bug]ServerDirectory>>entries
by Karl Ramberg 28 Oct '00

28 Oct '00

I get a error when I try to enter ftp.sunet.se from the FileList. It seems to not contain some info and mess up the token index. This is ftp.sunet.se lrwxrwxrwx 1 1 7 Dec 14 1999 Goodies -> goodies This is how the token index works ---------- 1 owner group 93812 Jul 21 1997 COMMAND.COM 1 2 3 4 5 6 7 8 9 -- token index" A workaround would be to change the token index for this case but I can't think of a general soulution right of the bat that would work on a general scale, so the index figured it self out. Anybody have a suggestion ?

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MORE INFO: Squeak becomes (almost) autistic???
by jchludzinski＠worldkey.net 28 Oct '00

28 Oct '00

When I kill the Processes executing the Tanks' Processes (thereby stopping the #nextPut:'s to the Daemon's SharedQueue), Squeak again becomes responsive (NOT autistic). BUT the Daemon's other Process (doing the receives) is continuing to write to the Transcript. ---John

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MORE & MORE: Squeak becomes (almost) autistic???
by jchludzinski＠worldkey.net 28 Oct '00

28 Oct '00

Bob, >Good point. The Transcript is doing frequent redraws to show you >the latest stuff and, with a long Transcript, this can take some >time. Clos eit and try again. I tried closing the Transcript while running BUT Squeak still became autistic. Is closing the Transcript enough or do I need to actually comment out all the #show:'s? This can't explain the growth in the time it take to send and receive from a Socket. Is there any reason to believe I might be better off using UDP socket (vs TCP sockets)? ---John

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OOPSLA Pictures
by Rick Zaccone 28 Oct '00

28 Oct '00

I have added links on my OOPSLA 2000 pictures page <http://www.eg.bucknell.edu/~zaccone/OOPSLA-2000/>. These links are to other OOPSLA pictures that have been announced on this list. Rick

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Re: Transcript is not thread-safe???
by Jörn Eyrich 28 Oct '00

28 Oct '00

Bob Arning wrote: > > On Sat, 28 Oct 2000 01:51:00 -0500 jchludzinski(a)worldkey.net wrote: > > ... > >I hope there's NOTHING inherent in Morphic which makes it ill > >suited for thread-safety??? Isn't Java's Swing (set) thread - > >safe??? > ... > The simple fact is that very little of Squeak or Smalltalk in general is designed with thread safety in mind. ... > ... > ... If one writes > > WorldState addDeferredUIMessage: [...some UI code...] > > then the code in the block will be evaluated by the UI process at a safe point in the morphic world cycle ... IIRC, Java's Swing and Morphic are rather similar in this matter, there are a few articles about using multiple threads with Swing at the java web site (the swing connection?), which also talk a bit about the rationale behind their design. There's even an equivalent to addDeferredUIMessage:, called SwingUtil.invokeLater() or some such. Joern

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Re: Linux....
by Bert Freudenberg 28 Oct '00

28 Oct '00

Gerardo Richarte wrote: > When I open this .image with SourceForge's VM, I get a > primitiveFailed for pathNameSeparator (I don't remember the exact name)... The SF VM is fully pluginized. Your VM does not find the FilePlugin, so the primitive fails. > And... Is SourceForge still being used and updated? Unfortunately, no. After Ian's last big bunch of changes it got quiet there. Ian promised to check in his sources at SF, but hasn't yet. The latest VM sources is Squeak-2.8pre4.tar.gz at his site ftp://ftp.inria.fr/INRIA/Projects/SOR/users/piumarta/squeak/ > Ah! yes... Is SF's source OS-event driven? Nope. Squeak-2.9a.pre1-src.tar.bz2 might be but I didn't check yet. -- Bert

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