Squeak-dev March 2001

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139 participants
508 discussions

NK-RefrigeratorMagnets on Bob's Super Swiki
by Ned Konz 02 Mar '01

02 Mar '01

For another demo of what the NCConstraintMorph (the basis of my Connectors stuff) can do, look at NK-RefrigeratorMagnets. If anyone has a better poem or word list for this, please send it to me. -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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Re: Has startup procedure changed
by Ned Konz 02 Mar '01

02 Mar '01

On Thursday 01 March 2001 19:18, Tim Cuthbertson wrote: > However, when I check the VM Statistics, it shows me as having total memory > of about 14 meg with only about 1.3 meg unused. It is not starting with my > specified 32 meg. > > What am I missing (or, what has changed)? The VM ignores the -memory flag now and can expand if necessary. Try doing: String new: 10000000 and see if it works... >From Andreas' earlier message: * dynamic growth of ObjectMemory: Yeah! Finally. No more -memory:, no more space low warnings unless you *are* out of memory. Note that this is why I consider it a 3.1alpha1 VM; the changes do work with older images but it's really a 3.1 feature. If you're updated through the last series of changes that Dan posted for 3.1 then you should get this VM and do a "space left" - could be interesting ;-) [BTW, if you're interested in what is going on under the hood, then go into the VM preferences and turn on "show allocation activity" - this will print out when the OM is actually growing and shrinking] IMPORTANT: If you're planning to use this VM with 3.0 images you should get the change set 3723SizeHint-ar from the 3.1 update stream. Otherwise it might be that the project publishing mechanism tries to allocate huge (and I mean: HUUUUGGGGGEEEEE) amounts of memory. It'll work without the CS but it's a gigantic waste of resources. -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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how to get 3.1 update stream?
by troycito 02 Mar '01

02 Mar '01

how do i get the 3.1 update stream? jason

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Searching for Linux VMs
by Andrew P. Black 01 Mar '01

01 Mar '01

I think that our problems in getting the MPEG player to run may be due to using an old Linux VM. But I couldn't find a pre-build 2.9 or newer VM in any of the places that I looked. It's probably obvious ... could someone please post a url to the right ftp site ... At 16:57 -0800 2001.02.28, Jie Huang wrote: >Subject: VM couldn't find the Mpeg3Plugin? >... > >Hi all, > >I have trouble making Mpeg3Plugin work on my Linux machine. The >primitiveMPEG3CheckSig keeps failing. I executed "Smalltalk >listLoadedModules". It showed that Mpeg3Plugin wasn't loaded. > >I am running Squeak2.9a-3076. >I have Bert's Mpeg3Plugin.so for Linux. It is in the same directory as >the .image and .changes files. >I filed in the MPEGJan2001Consolidation.2.cs. > >What's going wrong?

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Re: SuperSwiki Usage:
by Eric Scharff 01 Mar '01

01 Mar '01

> >From the pattern of usage I see here, you may not be the only one working in this mode. So here's what is available: > > - on the Find button on the project navigator, a quick press of the button will open a blue project finder dialog. Select Bobs Superswiki in the list on the left and the latest version of each project is listed on the right. Select one and hit OK. The project will load (and be saved to your squeaklet directory as well). Ah ha! Many thanks. I didn't even know what that orangish thing in the bottom left was until I moused-over it. It didn't even know it was a flap of sorts. Thanks again for the pointer. I'm embarrassed it was right under my nose, but I'm not really all that surprised. :) -Eric

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Re: [ENH][VM][UNIX]generalized async IO
by Lex Spoon 01 Mar '01

01 Mar '01

Tim Rowledge <tim(a)sumeru.stanford.edu> wrote: > > Hrm, I don't understand. What functions need different numbers > > of arguments? > > > Last time I looked the sockets needed two arguments (microseconds and a > spare file descriptor) and sound needed none. > Ah, right. The descriptor in question is the one for the connection to the XServer. Now, that descriptor is registered with its own handler, so the sockets module doesn't need to deal with it. For the microseconds, that is handled by the central aioPoll() routine. -Lex

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How to weaken the temps in MethodContext?
by Ned Konz 01 Mar '01

01 Mar '01

My ConstraintMorphs are parameterized using pluggable blocks. This is causing problems with dangling pointers: ConstraintMorph instvar targetBlock points to a BlockContext BlockContext home points to a MethodContext indexed fields of MethodContext hang on to their last arguments That is, I'm doing something like this in ConstraintMorph>>connectToNearestPoint constraintMorph _ [ :c :m | m nearestPointTo: c center ]. And as soon as that block is evaluated with m set to another Morph, I can't get rid of the reference to m. I'm using a WeakArray in ConstraintMorph, but it's not doing any good, since the indexed fields in the MethodContext aren't weak. Is this a case of needing real closures? Any suggestions? Should I stay away from pluggable blocks and use selectors instead (which is what seems to be done for the Pluggable*Morph family)? One idea I had was, since the input to the constraint is typically a Morph, I could try to determine if the Morph had been deleted by looking at its owner. Is this likely to be reliable? -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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[GOODIE] NK-ConnectorsDemo.006.pr on Bob's Super Swiki
by Ned Konz 01 Mar '01

01 Mar '01

I just published my first project on Bob's Super Swiki; it's the current state of my newest Connectors stuff. There's no documentation beyond the code itself, but you can play with it and give me your reactions. Works with 3.0 and 3.1 images. -- Ned Konz currently: Stanwood, WA email: ned(a)bike-nomad.com homepage: http://bike-nomad.com

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SuperSwiki Usage:
by Eric Scharff 01 Mar '01

01 Mar '01

OK, I'm making the transition to 3.0 / 3.1 slowly. Please bear with me. :) (I'd been stuck at 2.8 for a while, and this was a radical change for me! Its a change for the better, but it was very drastic. I think I'll be a test pilot now and stay up to date with changes... :) ) So here is a minor question: How to people tend to use Bob's SuperSwiki? I tried to use it from within Scamper, which works (more or less) but is slow. Instead, I've been using Netscape, clicking through to projects, doing a "Save As...", and then opening in Squeak. Is there a better way that I just haven't discovered yet? Is there a "SuperSwikiBroswerMorph" or some such tightly integrated thing? If not, it sounds like something that would be doable and quite valuable. I'll volunteer, but I still have a lot of catching up to see what is new! :) -Eric

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Re: [GOODIE] NK-ConnectorsDemo.006.pr on Bob's Super Swiki
by Sam Adams 01 Mar '01

01 Mar '01

Ned Konz wrote: << I just published my first project on Bob's Super Swiki; it's the current state of my newest Connectors stuff. There's no documentation beyond the code itself, but you can play with it and give me your reactions. Works with 3.0 and 3.1 images. >> Really, really cool! I have built and used a number of similar frameworks over the years, and yours looks and feels great. Can't wait to use it in an upcoming application. Well done! Sam S. Adams, IBM Distinguished Engineer, IBM Research tie line 444-0736, outside 919-254-0736, email: ssadams(a)us.ibm.com <<Hebrews 11:6, Proverbs 3:5-6, Romans 1:16-17, I Corinthians 1:10>>

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