Squeak-dev August 2008

squeak-dev@lists.squeakfoundation.org

103 participants
139 discussions

Linux and ttyUSB0
by Jon Hylands 13 Jan '09

13 Jan '09

Hi everyone, On my current robotics project, I'm using a gumstix verdex to talk over a USB to serial converter chip (FT232) to a serial bus. My brother Dave made up a new kernel driver for the gumstix, and when I plug in the chip it registers itself as ttyUSB0. For work I've done previously on Squeak on the gumstix, I've used standard serial ports, which map to ttyS0, ttyS1, ttyS2, etc, which correspond to port 0, 1, and 2 when I open the Serial Port in Squeak. However, I have no idea which port number ttyUSB0 corresponds to... Anyone got any idea? Thanks, Jon -------------------------------------------------------------- Jon Hylands Jon(a)huv.com http://www.huv.com/jon Project: Micro Raptor (Small Biped Velociraptor Robot) http://www.huv.com/blog

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Cleaning up lava code and unsent messages.
by Jerome Peace 02 Dec '08

02 Dec '08

Cleaning up lava code and unsent messages. Hi all, This was an after thought from my previous post. It deserved its own topic. Lava code is code left over from historical times which has no use in the current image and yet no one is willing to take responsiblity for removing it. For the record squeak has historically had about one sixth of its messages as unsent methods. Some of which is lava code others of which are examples, probes, utilities and tests. It would be nice to clean things up so there are no unsent messages. This could be done simply by creating a (pseudo-recursive) message #legitamatelyUnsentMethods (one method say for each class.) That sends for any legitimate examples, etc. Then anything that shows up as unsent would be illegitamate and removeable. >From time to time you would look at the implementors of the legitamatelyUnsentMethods to clean out what no longer belongs. a legitamatelyUnsentMethods method would be packagable if care were take that it mentions only the unsent methods of that package. My proposal is that package maintainers should take the responsibility for doing this in their own packages and the release team should reject any code that contains unsent messages. An Sunit test could be provided to check. I am also hoping to recruit those who would be willing to sort out the unsent messages in core packages and either write legitamatelyUnsentMethods methods for them or flag them as lava code for removal. It is a good way to gain an insight into a lot of squeak code while helping the community. If this task appeals to you please start it by planting a seed on mantis. Yours in service and curiosity, --Jeorme Peace ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

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Using Mac OS vm from the command line
by Keith Hodges 17 Nov '08

17 Nov '08

I am using a symbolic link to squeak -> Squeak 3.8.18beta4U.app/Contents/MacOS/Squeak VM Opt It requires a full path the to image, it cannot open an image in the PWD is this expected behaviour? Keith

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[ANN] Euro 2008 Betting! 24 hours left!
by Göran Krampe 10 Nov '08

10 Nov '08

Hi folks! (This is a reminder - perhaps folks missed my previous post so this time I added "[ANN]" - almost noone from the Squeak community have joined up and previous years quite a lot of people did.) 2 years has passed and it is time to go crazy over soccer again! The european championship is about to start in exactly 24 hours and the little betting site I built 6 years ago (in Squeak3.9/HttpView2) is once again up and running! So drop by, place the bets and join up to see how it goes. No official prizes :) are set - but who knows. IMPORTANT: You got 24 hours to bet until the group play betting game closes! There are two other betting games though that are continuous so you can join later. http://em2008.krampe.se/eng regards, Göran PS. Will post a followup later on describing how we used the translation mechanism in Squeak to make the site in both english and swedish.

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Squeak 4
by Matthew Fulmer 23 Oct '08

23 Oct '08

I've been needing to use spoon for my research project this summer, and now that the board has (finally) officially decided to base Squeak 4 on spoon, can I expect that there will be a downloadable spoon soon? as in, 2 weeks? -- Matthew Fulmer -- http://mtfulmer.wordpress.com/

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FFI and FreeTypePlus problem?
by Torsten Bergmann 23 Oct '08

23 Oct '08

I already created a bug report for this, Andreas may be able to tell you more: http://bugs.squeak.org/view.php?id=6980 As a workaround you can can use FFI-Kernel-ar6.mcz instead of FFI-Kernel-ar-8.mcz. Bye Torsten -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/?mc=sv_ext_mf@gmx

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Position available
by Bèrto ëd Sèra 26 Sep '08

26 Sep '08

Hi! I'm looking for someone with good Squeak AND peer2peer experience for a paid Open Source project. Preferably somebody residing this side (east) of the Shengen's Wall :) In short what we need is a cross-platform demon that will act as a network traffic manager among the nodes of a distributed database system, many nodes of which may be disconnected from the network for even long periods (and be used in insulation during that time). The demon shall: 1) check whether the network is available 2) find a fresh node with a good bandwidth in the network topology 3) retrieve updates and deliver locally produced updates The database instance itself is currently a MySQL instance, capable of accepting and delivering objectes in XML format. All that is managed by triggers and stored procedures (given the huge amounts we are going to manage we would not risk storing objects in squeak, at the moment). The DB part is already running. Obviously there is much more to it, but I will rather discuss it with a potential candidate than spam the list. Bèrto

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Making morphs scriptable
by Robert Hawley 22 Sep '08

22 Sep '08

There is an eToys scriptable DiceMorph and an eToys scriptable CalculatorMorph on SqueakMap. I'd welcome comments or bug reports. The calculator can be driven entirely from scripts, which makes it quite fun and potentially interesting for schools. The DiceMorph is a reasonably simple example of how to make a morph scriptable. I am surprised there aren't more eToys scriptable morphic objects available. Is there a coherent repository that I have yet to discover?

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How to find...?
by Yoshiki Ohshima 19 Sep '08

19 Sep '08

Hello, I've been looking at the relicensing agreement issue, and trying to make better mapping from the initial to the person. It is almost straightforward if it is not in the preparation of 3.9 time; I have all changes in the update stream so I can grep and look at the preamble and find it out. (I built a little browser so that you can visit all old versions, more or less similar to Maurice has, I believe). However, in the 3.9 era the changeset typically looks like: |repository| repository := MCHttpRepository location: 'http://source.squeakfoundation.org/39a' user: '' password: ''. (repository loadVersionFromFileNamed: 'ScriptLoader-sd.183.mcz') load. and cannot get the great detail. For example, if I would like to find out who 'tp' is in the following method: !DependentsArray methodsFor: 'copying' stamp: 'tp 7/6/2006 11:11'! size ^self inject: 0 into: [ :count :dep | dep ifNil: [ count ] ifNotNil: [ count + 1 ]]! ! What is the best way? -- Yoshiki

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About Eliot FFi changes
by stephane ducasse 19 Sep '08

19 Sep '08

Hi all I discussed at ESUG with Eliot and he told us that he sent a while ago his changes to get a much nicer FFI implementation to the VM maintainers. Since then nothing really happen. So will the changes of eliot integrated or not in the VMs? Stef

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