Squeak-dev April 2005

squeak-dev@lists.squeakfoundation.org

158 participants
287 discussions

OrderedCollection>before:ifAbsent:
by Jim Menard 02 May '05

02 May '05

The comment for OrderedCollection>before:ifAbsent: states, in part, "Answer the result of evaluating the exceptionBlock if ... there are no elements before it." The code, however, performs self errorFirstObject: target if the object is the first element of the collection. Which should be changed: the code or the comment? Jim -- Jim Menard, jimm(a)io.com, http://www.io.com/~jimm "Brought to you again by the Department of Redundancy Department." -- Firesign Theatre

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[FIX] ScamperFix
by karl.ramberg＠chello.se 01 May '05

01 May '05

from preamble: "Change Set: ScamperFix Date: 25 April 2005 Author: Karl Ramberg Scrollbars popped up in some fields and messed up the layout. Fixed"!

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tracking down change sets for a class
by Ross Boylan 01 May '05

01 May '05

I'm considering the best approach to migrating an image and application which are at 3.6. I thought it would be useful to review relevant changesets, especially the pre and post code that handles migration (I guess such code could also be embedded in doIt's). I am not having much luck. I'd like a "see all changesets with class X" (or see all entries relating to the class), but the closest I've found to that is to find a method in the class, browser versions, and go to the changeset. (I think I used those other, desired, functions in VisualWorks. Maybe squeak doesn't have them.). The problem is that in some cases there is no changeset. For example, between 3.6 and 3.7 ScrollPane acquired horizontal scrollbars. But even using a 3.7 image and looking at methods involving them (#hMargin) it tells me it can't find a change set. Earlier postings on the list indicated that sometimes the changesets are dropped, but this is a change that's very recent, relative to 3.7 (i.e., it first appeared in 3.7). Narrowly, I'd appreciate any help tracking down the changeset(s). More broadly, I'd appreciate any advice on migration. I'm in a particular bind because of the introduction of DateTime in 3.7, which required lots of instance mutations, renaming, etc. I have already introduced those changes into my image--but in slightly different form (I created new classes with names like DTDate to avoid messing with the standard ones. In contrast, the official change stream does mess with them). Thanks. Ross Boylan

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[ENH] icsMimeTypeAddition
by franco2＠uiuc.edu 30 Apr '05

30 Apr '05

from preamble: "Change Set: icsMimeTypeAddition Date: 30 April 2005 Author: Adam Franco Added MimeType entry for iCal *.ics files, text/calendar."!

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[FIX] MimeTypeFix
by franco2＠uiuc.edu 30 Apr '05

30 Apr '05

from preamble: "Change Set: MimeTypeFix Date: 30 April 2005 Author: Adam Franco FileUrl was not getting the MimeType set when querying MimeDocument to guess the type. This was due to the type temp-variable not being set with the result of MIMEDocument guessTypeFromName:"!

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Haiku
by Frank Caggiano 30 Apr '05

30 Apr '05

Baby mice in their nest squeak in response to the young sparrows. BASHO So was Basho (17th century Japanese poet and Zen practitioner) foretelling the future? ------------------------ Frank Caggiano frankcag at crystal-objects dot com http://www.crystal-objects.com The best education for the best is the best education for all. Robert Maynard Hutchins

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The future for the Squeak Foundation Virtual Server
by Ken Causey 30 Apr '05

30 Apr '05

Cees kindly setup a virtual server box commonly known as box1.squeakfoundation.org for us some months ago. Currently that server is hosting the new discuss.squeakfoundation.org mailing lists, the BFAV server, the SqueakMap server, the new or soon to be FTP/file site for Squeak, the development site (and probably the permanent site) for the new Squeak website, and perhaps other things I'm not thinking of at the moment. The server we are paying for (we meaning those kind members of the community that donated money for the hosting) currently costs us about $28.50 per month. This server has a bit over 3GB of disk space and 64MB of ram. It is a virtual server meaning that we share the physical server with some unknown number of other virtual servers. We are managing with this configuration but it is getting quite tight. We are currently using somewhat more than our allotted 64MB of RAM and are into swap which significantly hurts performance on the virtual server which some of you may have noticed. Also the file space for the download site is currently using over 1.4GB of drive space and grows regularly (Each time a new set of updates is issued each new image/changes package adds about 10MB to the site.). Cees and I discussed what to do to provide additional resources for current and future services. The first thought was to upgrade to the next level of the ByteMark virtual server account which would provide 128MB of RAM and 6GB of disk space. This would be a significant jump and would cost us about $51.50 per month (or $42.88 if we paid up front for a year at $514.50). This would provide significant breathing room but the memory alone would be eaten up pretty quickly by additional Squeak hosted websites (wikis, whatever) at about a rate of 8-24MB each. The next thought was to get a full server. At first I thought this would be a big jump in cost but Cees was familiar with a company that provides hosting at a pretty good rate ( http://www.15minuteservers.com/ ). My current recommendation is that we start another round of fundraising to go ahead and prepay for a server from 15 Minute Servers for 2 years. The total cost for 2 years would be about $1438 (about 40% more than the cost of the next level ByteMark virutal server) and would provide a full server with 2GHZ+ AMD processor, 512MB RAM, 80GB hard drive space, and a terabyte of bandwidth each month. I'm confident that we can host a lot of services, almost certainly anything that comes up in the next 2 years, with that. So what does everyone think? Can anyone suggest a better plan or have qualms about this? If not I would like to suggest that we start a round of fundraising and let the money speak. If we can manage to raise $1438 dollars in the next few weeks then I think that will answer the question of whether or not we can afford to do this and whether or not the community thinks that it would be worthwhile. I should note that we already have a few hundred dollars that has already been donated for hosting in general so we are well on the way towards this goal already if we decide to use the funds in that way. Ken

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Harvesting Party Wednesday May 4th 01:00 GMT
by Ken Causey 30 Apr '05

30 Apr '05

Just a reminder that the next Harvesting Party will take place between 01:00 (1 AM) and 05:00 (5 AM) GMT Wednesday May 4th, 2005. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html Information about the Harvesting Party idea can be found at http://people.squeakfoundation.org/article/29.html If you have the time please attend and work toward the future of Squeak. The next seven parties are scheduled for 05:00 (05:00 AM) GMT Sunday May 08, 2005 09:00 (09:00 AM) GMT Thursday May 12, 2005 13:00 (01:00 PM) GMT Monday May 16, 2005 17:00 (05:00 PM) GMT Friday May 20, 2005 21:00 (09:00 PM) GMT Tuesday May 24, 2005 01:00 (01:00 AM) GMT Sunday May 29, 2005 05:00 (05:00 AM) GMT Thursday June 02, 2005

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SqueakMap not updating
by Brian Brown 30 Apr '05

30 Apr '05

Greetings all, I've encountered some anomalous behavior between windows and Mac OS X with regards to updating SM - using a fully updated 3.8 image on windows, the "update map from net" works fine. On my Mac, a fully updated 3.8 results in "A primitive has failed" after the "Reading a Stream" progress indicator comes up. I tried SMSqueakMap default loadUpdates, and it popped a debugger, failing in ImageSegment>>reshapeClasses:refStream as it tries to Array>>elementsForwardIdentityTo: that is where the Error: a primitive has failed happens. Any ideas about how to solve this? Thanks! Brian P.S. Attached is the SqueakDebug.log

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Re: Dorado bytecodes per second
by Tim Rowledge 29 Apr '05

29 Apr '05

Jecel Assumpcao Jr <jecel(a)merlintec.com> wrote: > > > My first ARM system was 4 mips (no cache at all, not even instruction pre- > > fetch) with 4Mb of slow ram. It scored 27% Dorado but was thoroughly usable as > > (600MHz / 8MHz) * 0.27 Dorados = 20.25 Dorados. That seems about right. > Wasn't the ARM3 around 36MHz or something like that? I've been reminded of the numbers and I misquoted (senility something or other . I forget). The ARM2 at 8MHz scored 87% Dorado, the ARM3 at 12MHz scored 125%. ARM2 had no cache at all, ARM3 had 4kb combined instruction/data cache. So the comparison would be (600/8) * 87 -> 65~ Dorado or ~three times what I'm getting. XScale at 600MHz has 16kb (?) each of instruction and data caches and a rather more modern memory interface than the ARM2. tim -- Tim Rowledge, tim(a)sumeru.stanford.edu, http://sumeru.stanford.edu/tim Useful random insult:- One saucer short of a tea-service.

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