Squeak-dev December 2000

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[FIX] PasswordFix
by Joshua Channing Gargus 29 Dec '00

29 Dec '00

>From the preamble: Fixed use of obsolete (removed) method to use its replacement. Joshua

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[ANN] IOHandle V1.1 released (updated for Squeak 2.9a)
by David T. Lewis 28 Dec '00

28 Dec '00

IOHandle adds classes which represent input/output on external channels, such as files or sockets. The FileStream and Socket hierarchies are modified to refer to instances of IOHandle rather than to raw byte arrays when invoking primitives. FileStreams and Sockets collaborate with instances of IOHandle, separating the streaming and protocol behavior from external device access behavior. This change set is not easily removed from the system, so please begin with a fresh copy of your image before loading IOHandle. The change set is distributed in two parts which must be loaded in sequence. Dave

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Are these the latest Win32 Sources?
by Ned Konz 28 Dec '00

28 Dec '00

I note that there is a Win32 2.9 alpha file available on the FTP site, called Squeak2.9a-3076.zip. The latest source files I've been able to find were called Squeak-pre-2_8-src.zip and were on Andreas' FTP site. Is the VM in the Squeak2.9a-3076.zip file built from the Squeak-pre-2_8-src.zip sources or some other? If there are later sources, can they be made available? I'd like to do some work on the Windows/CE port, and would like to work from whatever is the latest. Thanks, -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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Re: Some more questions (file ins, morphic, vm upgrade, threading)
by Bob Arning 28 Dec '00

28 Dec '00

Peter, On Wed, 27 Dec 2000 22:52:12 -0500 "Peter Schuller" <peter.schuller(a)infidyne.com> wrote: >* How do I file *in* changes? I know how to file them out. As for filing in, >I tried opening the file (open->file) and opening the change browser. When I >selected all changes and tried to file them in (using the "file in" popup >selection) I got some error regarding incorrect syntax or whatnot. I suspect >I'm going about it entirely the wrong way. What's the standard procedure? I >have not been able to find anything any method except what I mentioned above. If you want to file-in an entire file, then use the File List. Select the desired file in the upper right pane and then from the menu on that pane, select 'file into new change set', or perhaps simply 'fileIn' if you want them included in the current change set. If you are filing in only part of a file or code that is simply in a workspace, the select the code and choose 'file it in' from the 'more...' section of the code pane menu. >* What is the correct way to obtain an "official" Swueak 2.9? I didn't find >a 2.9 binary, so I now have the 2.7 VM with the 2.9 image and changes file. >I have a feeling my installation is not "pure" because of this :) Is there >even a 2.9 specific VM, or is 2.9 really just a changes update? 2.9 is really an image designation. VM's often are quite usable for a fairly wide range of images, although I suspect you'd be happier with a later Vm when using a 2.9 image. The starting points for finding the current VM are ftp://st.cs.uiuc.edu/Smalltalk/Squeak/ and the swiki at Georgia Tech (which I can't seem to reach at the moment). > >* Is morphic thread-safe? In terms of the underlying rendering system that >is. Assuming I keep my head on straight, is it perfectly safe to manipulate >Morphin components in threads (processes) othar than the "main" one (if >there is such a thing)? It is *not* thread-safe and you manipulate it from other processes at your own peril. In 2.9 you can do WorldState addDeferredUIMessage: [some morphic-altering code here] from another process and that code will run in the main UI process in a safer manner. >* I wanted a way to execute critical sections that wouldn't cause a deadlock >if the code recursively synchronized around the same object multiple times >(ala Java). This is not possible using the plane Semaphor>>critical: method. >I implemented this myself with a "smart" semaphore that kept track of which >process was currently executing a critical section. It works great, but is >there a built-in (and therefore probably faster) way of doing this that I >haven't discovered? Nothing built-in. I do the same thing myself when I need the feature. Cheers, Bob

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Some more questions (file ins, morphic, vm upgrade, threading)
by Peter Schuller 28 Dec '00

28 Dec '00

Hi, during the last few days I have accumlutes 4 more questions, and once again I turn to the list. RTFM pointers are fine - I've tried to find answer on the Swiki and by consulting Google, but no luck as of yet. * How do I file *in* changes? I know how to file them out. As for filing in, I tried opening the file (open->file) and opening the change browser. When I selected all changes and tried to file them in (using the "file in" popup selection) I got some error regarding incorrect syntax or whatnot. I suspect I'm going about it entirely the wrong way. What's the standard procedure? I have not been able to find anything any method except what I mentioned above. * What is the correct way to obtain an "official" Swueak 2.9? I didn't find a 2.9 binary, so I now have the 2.7 VM with the 2.9 image and changes file. I have a feeling my installation is not "pure" because of this :) Is there even a 2.9 specific VM, or is 2.9 really just a changes update? * Is morphic thread-safe? In terms of the underlying rendering system that is. Assuming I keep my head on straight, is it perfectly safe to manipulate Morphin components in threads (processes) othar than the "main" one (if there is such a thing)? * I wanted a way to execute critical sections that wouldn't cause a deadlock if the code recursively synchronized around the same object multiple times (ala Java). This is not possible using the plane Semaphor>>critical: method. I implemented this myself with a "smart" semaphore that kept track of which process was currently executing a critical section. It works great, but is there a built-in (and therefore probably faster) way of doing this that I haven't discovered? Thanks, -- / Peter Schuller, InfiDyne Technologies HB PGP userID: 0x5584BD98 or 'Peter Schuller <peter.schuller(a)infidyne.com>' Key retrival: Send an E-Mail to getpgpkey(a)scode.infidyne.com E-Mail: peter.schuller(a)infidyne.com Web: http://scode.infidyne.com

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Re: RE: SuperSwiki stats
by Bob Arning 28 Dec '00

28 Dec '00

Stephen, Squeak 2.9 at change set 2710 Com46Swiki11 + some additions of my own the VM is 2.9AlphaForDan2 (which may not have seen the outside world) MacOS 9.0.2 Cheers, Bob On Wed, 27 Dec 2000 22:07:57 -0500 "Stephen Pair" <spair(a)advantive.com> wrote: >What version of Squeak, Comanche/Swiki, VM and OS platform are you using? > >> For those who may be interested, I turned on logging on the >> SuperSwiki a few days ago. Here is a summary of activity since then: >> >> 3.34 days elapsed time >> >> 71 users >> >> 2,410 responses >> >> 96,126,580 total size of responses >> >> 39,886 average size of response

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SuperSwiki stats
by Bob Arning 28 Dec '00

28 Dec '00

For those who may be interested, I turned on logging on the SuperSwiki a few days ago. Here is a summary of activity since then: 3.34 days elapsed time 71 users 2,410 responses 96,126,580 total size of responses 39,886 average size of response Cheers, Bob

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Looking for a few good methods (for the Squeak CD-ROM)`
by Stephen T. Pope 27 Dec '00

27 Dec '00

Hello all, This is the second call for contributions to the up-coming Squeak CD-ROM. Specifically, there are a number of packages that are not yet included, such as: ProcessBrowser RefactoringBrowser Other spiffy apps? Lastly, who wants to contribute screen-dumps, walk-throughs, tutorials, or other contsnt?? This is your chance to be real famous! -- stp Stephen Travis Pope http://www.create.ucsb.edu/~stp

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A few questions about Squeak for Windows CE/Cassiopea
by Smith, Jonathan Arrender 27 Dec '00

27 Dec '00

Hi Folks: I am working with a Cassiopea E125 with 32MB RAM. I downloaded the MIPS virtual machine from the home page and was able to get it to work with the mini.image. I had several problems: A. I am able to start the virtual machine and select an image. As soon as I load an image, however, the program then falls in to the background. I can use "settings/system/memory/running programs" menus and the activate button to bring the program back to the top. Things will work from that point, but the program does not show up with an icon on the top of the start menu. If I use another program I can only return to squeak via the memory settings panel. B. When running squeak the start menu shifts from the top (where it usually is) to the lower right hand corner, and the window partly overlays the bottom bar (where the typing control lives). C. The full 2.7 image loads but does not function well in this environment. I got several walkbacks when I tried some of the early "Play With Me" windows. So some questions: 1. Is there a more up to date version of the virtual machine for MIPS/Windows CE? I suspect most of the problems I have observed have to do with an out-of-date VM. 2. Are there other images available for PDAs? I would be interested having an image that re-engineers a few of the tools (browsers etc.) so that they would work well with a tiny display as well as including the morphic sub-system. 3. Is there active work on Squeak for Windows CE? Any hope of updates? I am interested in (possibly) using squeak as a delivery means and would be glad to put some work in to this. Thanks, Jonathan A. Smith

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[FIX] BrowsePlayerClassFix
by Robert Hirschfeld 27 Dec '00

27 Dec '00

Change Set: BrowsePlayerClassFix Date: 26 December 2000 Author: Robert Hirschfeld Fixes a morph's debug menu where 'browse player class' opened an inspector on the player instead of a browser on its class. 'From Squeak2.9alpha of 2 September 2000 [latest update: #3144] on 26 December 2000 at 1:58 pm'! "Change Set: BrowsePlayerClassFix Date: 26 December 2000 Author: Robert Hirschfeld Fixes a morph's debug menu where 'browse player class' opened an inspector on the player instead of a browser on its class."! !Morph methodsFor: 'debug and other' stamp: 'rhi 12/26/2000 13:46'! buildDebugMenu: aHand "Answer a debugging menu for the receiver. The hand argument is seemingly historical and plays no role presently" | aMenu aPlayer | aMenu _ MenuMorph new defaultTarget: self. aMenu addStayUpItem. (self hasProperty: #errorOnDraw) ifTrue: [aMenu add: 'start drawing again' action: #resumeAfterDrawError. aMenu addLine]. (self hasProperty: #errorOnStep) ifTrue: [aMenu add: 'start stepping again' action: #resumeAfterStepError. aMenu addLine]. aMenu add: 'inspect morph' action: #inspectInMorphic:. aMenu add: 'inspect owner chain' action: #inspectOwnerChain. Smalltalk isMorphic ifFalse: [aMenu add: 'inspect morph (in MVC)' action: #inspect]. aMenu add: 'explore morph' target: self selector: #explore. (aPlayer _ self player) ifNotNil: [aMenu add: 'inspect player' target: aPlayer action: #inspect. Smalltalk isMorphic ifFalse: [aMenu add: 'inspect player (morphic)' action: #inspectArgumentsPlayerInMorphic:]]. aMenu addLine. aMenu add: 'browse morph class' target: self selector: #browseHierarchy. aPlayer ifNotNil: [aMenu add: 'browse player class' target: aPlayer action: #browsePlayerClass]. self addViewingItemsTo: aMenu. aMenu addLine; add: 'make own subclass' action: #subclassMorph; add: 'internal name ' action: #choosePartName; add: 'save morph in file' action: #saveOnFile; addLine; add: 'call #tempCommand' action: #callTempCommand; add: 'define #tempCommand' action: #defineTempCommand; addLine; add: 'control-menu...' target: self selector: #invokeMetaMenu:; add: 'edit balloon help' action: #editBalloonHelpText. ^ aMenu! !

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