Squeak-dev July 2003

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187 participants
961 discussions

[BUG][FIX] BFAV not showing all posts
by Brent Vukmer 06 Aug '03

06 Aug '03

I'm re-posting this so that it will get picked up by the main Bug Fixes Archive page ( http://swiki.gsug.org/sqfixes ) and be visible in the default Bug Fixes Archive Viewer. Andreas's bug report is below, with my comments following. > > Looking for a specific set of enhancements (namely, Anthony's changes) I > found absolutely nothing showing up in BFAV. Going to the > SQFIXES archives showed me that the posts _were_ listed there > and looking at the email-repository I found that the contents > of the post in question simply said "an error occured... > server not responding". > > So it seems as if (that version of?) BFAV will simply drop > messages if the server is not responsive. I just dumped the > entire archive and reloaded it from scratch and (looking over > all the posts manually) it seems that this time things went > well (e.g., no server errors) but if it hasn't this bug > should be fixed. It's very hard to review fixes if you don't > even see them > ;-) > > Cheers, > - Andreas > The following should be fixed in the 1.23 BFAV release: - the HTTP-get should handle server-not-responding better - error messages should not get saved to the file repository anymore - the BFAV will check there are no gaps in the list of posts that it has loaded, after each "load updates" - if there are gaps, the BFAV will try to load the missing posts This bug could use a lot of test-love. Volunteers to install and test the latest BFAV from SqueakMap?

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[FIX] CPUWatcherShutDown-nk
by ned＠bike-nomad.com 06 Aug '03

06 Aug '03

from preamble: "Change Set: CPUWatcherShutDown-nk Date: 18 June 2003 Author: Ned Konz This change set adds startup/shutdown behavior to the CPUWatcher and the ProcessBrowsers. It will make the CPUWatcher stop and restart across image saves, and it will make ProcessBrowser instances resume updating properly. "!

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[ENH] mapcan ( [cd][er][et][sm] added method comment -- see attached version )
by schwa＠cc.gatech.edu 06 Aug '03

06 Aug '03

The method #concatenation didn't have a comment, so I added one. Otherwise, works just fine. I'll be using this method a fair bit, I suspect. < I'm a bug-fixing machine! > This post brought to you by the BugFixArchiveViewer, a handy tool that makes it easy to comment on proposed fixes and enhancements for Squeak. For more information, check out the Web page for the BugFixArchiveViewer project: http://minnow.cc.gatech.edu/squeak/3214 < I'm a bug-fixing machine! >

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[ENH][3.6a] BrowseModelClass-nk
by ned＠bike-nomad.com 06 Aug '03

06 Aug '03

from preamble: "Change Set: BrowseModelClass-nk Date: 29 June 2003 Author: Ned Konz Original version: 9 April 2002 Compatible with: 3.6 > CS 5240 This adds 'browse model class' to the debug menu for Morphs that are MorphicModels (windows, etc.)"!

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.mcv => .sar?
by Avi Bryant 05 Aug '03

05 Aug '03

Just a half-formed late night thought: We'd like Monticello to support a number of different formats - for Smalltalk source code, this could include .st, .mc, .sif, .pst, Rosetta, and maybe others. For other kinds of packages (and I don't see any reason why there couldn't be other kinds), there would be an entirely different set of possible formats. However, the contents of each of those formats maps to what Monticello calls a "Snapshot" - the collection of definitions being versioned, without any particular ancestry or packaging metadata attached to them. But what we generally want to be passing around are Versions, which contain a Snapshot plus all the necessary extra bits of info. We'd fuzzily been thinking that each format would have some semi-natural way of including this metadata - annotations for SIF, maybe a preamble comment for .st, and so on. But this is pretty adhoc and doesn't feel quite right. What about taking a page from Ned's book and making the format be a ZIP file? You could have special paths monticello/package, monticello/version_info which contained the metadata, and monticello/snapshot which explained (as a SAR-like install script, perhaps) how to recreate the Snapshot from whatever other members (like "source.sif", say) were in the ZIP. They could in fact be SAR files, whose install script checked for the presence of Monticello. If it was there, they wouldn't directly install anything but instead would pop up the Version window from which you can load, merge, etc. If there was no Monticello they would load themselves into the image as best they could. How does this sit with people? Avi

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[ENH][VM] making FreeCell redraw 20% faster...
by John M McIntosh 04 Aug '03

04 Aug '03

> When you run the FreeCell demo it seems on the powerpc that > BitBltSimulation>>alphaSourceBlendBits16 > chews a lot of cycles, say 8.7% of the total time. > > Well I noticed that in > BitBltSimulation>> dither32To16: threshold: > that it does something interesting, why it grabs the r g b bytes and > mangles them into a 16 bit word. But really at each step we have 8 > bits of data with 4 bits for threshold information to result in 4 bits > of output. > > {Yes, well it's late maybe my math is wrong} > > Gee can you say a lookup table (4096 elements of 4 bits (however 8 > will do)), Attached is the changeset which creates the 4096 byte table and uses it to greatly improve performance. Someone needs to check the interpreter simulator, I couldn't make it work out of the box. So I'm not sure if this changeset works for it. -- ======================================================================== === John M. McIntosh <johnmci(a)smalltalkconsulting.com> 1-800-477-2659 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ======================================================================== ===

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[ENH][VM] - mark/sweep changes & correction to headerTypeBytes references
by John M McIntosh 04 Aug '03

04 Aug '03

Mmm if you understand what CArrayAccessor does, then you understand that you don't need to add one when you use a 'C array' in InterpreterSimulator. This changeset removes the unneeded +1 and tweaks the mark/sweep logic just a bit to remove a global variable reference, and an unneeded double store. Some of you might note the addition of a instance variable youngStartLocal to Interpreter, but thru the magic of VMMaker that gets folded into a local variable, versus a global in markAndTrace: which then removes a clock cycle, and stall from every object reference in the GC logic. A tiny but annoying detail when I wanted to ensure all major usages of variables are register based if possible. If someone has an working InterpreterSimulator they need to test to make sure I didn't break anything because I've not run a smoke test with this change set on InterpreterSimulator. -- ======================================================================== === John M. McIntosh <johnmci(a)smalltalkconsulting.com> 1-800-477-2659 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ======================================================================== ===

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[ENH] VM tweaks for Islands project ( [cd][er][sm] looks good; one question remaining )
by Andreas Raab 04 Aug '03

04 Aug '03

The changes look quite reasonable to me; all they do is making some of the primitives a little more flexible with respect to execution from other places (which would break otherwise). The "user flag" in the CMs seems useful for a variety of applications (Islands just being one potential application for this flag). Given the ability to use named primitives for all but the most time-critical primitives, this looks like a reasonable choice (in particular considering that primitives in the range affected have never been used so there is no potential for breaking anything). The only potential issue I could see is that primitiveStringReplace has a *slightly* different boundary check than the one being in 3.6a VMMaker. It is not clear to me whether the difference is intentional or not and (lacking any history information in the SAR file, sigh...) I can't see whether this was changed by VMMaker or by the Islands changed. In any case, it needs to be sorted out. Cheers, - Andreas < I'm a bug-fixing machine! > This post brought to you by the BugFixArchiveViewer, a handy tool that makes it easy to comment on proposed fixes and enhancements for Squeak. For more information, check out the Web page for the BugFixArchiveViewer project: http://minnow.cc.gatech.edu/squeak/3214 < I'm a bug-fixing machine! >

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RE: [BUG][FIX]Browser explain of pooldicts fails
by Magistrello Alejandro (SFA) 04 Aug '03

04 Aug '03

Tim, can you check http://swiki.gsug.org:8080/sqfixes/3263.html ? regards, Alejandro > -----Mensaje original----- > De: Tim Rowledge [SMTP:tim@sumeru.stanford.edu] > Enviado el: jueves 29 de mayo de 2003 18:46 > Para: squeak-dev(a)lists.squeakfoundation.org > Asunto: Re: [BUG][FIX]Browser explain of pooldicts fails > > A seemingly related problem has just caught me. > > Using a FileContentsBrowser I had 'remove existing' to compare a .st > file with the contents of my image. Sometime in the process of browsing > the remaining list of changes I got a walkback as in the attached > debug.log; note that the problem is that nobody understands #Definition > again. > > If you look in CodeHolder>didCodeChangeElsewhere you'll see that the > same #selectedMessageName is the likely culprit. > > Who actually knows what is the intended behaviour here? > > tim > -- > Tim Rowledge, tim(a)sumeru.stanford.edu, http://sumeru.stanford.edu/tim > Useful random insult:- Immune from any serious head injury. <<Archivo: > SqueakDebug.log>> <<Archivo: ATT615707.txt>>

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[ENH] FloatArraySum
by Joshua 'Schwa' Gargus 04 Aug '03

04 Aug '03

Adds a hook to a primitive that should shortly be appearing in the VMMaker package on SqueakMap. This speeds things up by over 200x. If the primitive is not found, falls back to old calculation.

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