Squeak-dev September 2004

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150 participants
437 discussions

RE: [BUG][BFAV]Loading updates failed
by Frank Shearar 02 Sep '04

02 Sep '04

Karl Ramberg <karl.ramberg(a)chello.se> wrote: > > I'm trying to load the latest updates of bugs and fixes but the > BFAV tells me that 'Loading updates failed'. Ditto. I looked at the HTTP traffic, and I see a "GET /listing HTTP/1.1" go out to bfav.squeakfoundation.org, and a "HTTP/1.1 416 Requested Range Not Satisfiable" come back, and shortly afterwards BFAV reports the failure. For the HTTP gurus out there, the messages in question: GET /listing HTTP/1.1 accept: */* host: bfav.squeakfoundation.org range: bytes=3156667- user-agent: sw-dol/0.60 HTTP/1.1 416 Requested Range Not Satisfiable Date: Thu, 02 Sep 2004 14:33:38 GMT Server: Apache/1.3.26 (Unix) Debian GNU/Linux Last-Modified: Thu, 02 Sep 2004 13:54:03 GMT ETag: "852f8-302abb-413725fb" Accept-Ranges: bytes Content-Length: 0 Content-Range: bytes */3156667 Content-Type: text/plain;.charset=iso-8859-1 I don't know enough to tell what should or should not happen here. I do know enough to see that BFAV needs work on its error reporting - "last update failed" really needs a reason! frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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Re: How do I wait for HandMorph>>openInHand to complete?
by Lex Spoon 02 Sep '04

02 Sep '04

(apologies if this goes through twice; SMTP these days is devolving back towards UUCP with all the explicit routing) Trygve Reenskaug <trygver(a)ifi.uio.no> wrote: > The conclusion is that there is indeed a single input process. But the openInHand mechanism can only be understood by considering the stack. There is no way I can wait until morph has been positioned, because the positioning only starts after I have returned. > > This very cool software leaves me cold. Since I do not want to do other things before the positioning completes, I replace it with a simple and transparent mechanism a la Rectangle>>fromUser The problem is that while that method is running, Morphic freezes, which is exactly the reason that the more complex approach is being used. The issue is: even though *you* do not have anything useful to do until the morph is placed, the rest of the system might be doing things. It's a deep issue. Morphic's approach means that you cannot write the sequential code you are trying for. There are no (safe) "wait" operations in Morphic. But actually, there are no safe wait's even in principle. While you sleep, all kinds of things can have happened in the image at large. As a simple example, it is entirely possible that some morph emptied the hand. Perhaps the user tossed the item into the trash. Because of possibilities like these, whenever you regain control after letting the general UI execute, you need to check up on all the relevant state of the world before continuing. I suspect that it is actually simpler to avoid the waits, even if you had them. In the end, you need to consider that anything might happen each time you give control back to the general system, and thus you must ultimately consider your computation as a sequence of little bits of code that happen between the UI events. That is, when you are ready to get your code working really well, then you end up chopping it all up into little event handlers anyway, and any place you forget to do so is a hidden source of bugs. Wait's make it easy to overlook world-changing activity, while chopping the code into event handlers makes it natural. But yes, having to immediately chop up the code is harsh when there is something "simple" you have in mind. I just don't see a good way around it. In the long term, maybe we should find a way to make these seemingly simple things actually *be* simple--which they aren't right now, since the world can change under your feat--but short of such an invention Morphic seems to be set up correctly. -Lex

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[BFAV] Ensure:ing a close
by Frank Shearar 02 Sep '04

02 Sep '04

While looking at Karl Ramberg's recent bug report, I saw something in ArchiveRepository>>updateListing that puzzled me. I saw this: listingFile _ self listingFile. listingFile findStringFromEnd: String cr, self archive highestPostId asString. listingFile next. listingFile upTo: Character cr. "jump to the line after the highest id" listingDeltaString _ listingFile upToEnd. listingFile close. "self listingFile" returns a File (from "self repositoryDir readOnlyFileNamed: self listingFileName"), so shouldn't I rewrite this as: listingFile := self listingFile. [listingFile findStringFromEnd: String cr, self archive highestPostId asString. listingFile next. listingFile upTo: Character cr. "jump to the line after the highest id" listingDeltaString := listingFile upToEnd.] ensure: [listingFile close.] ? frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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[Q] Monticello usage (naming)
by Ingo Hohmann 02 Sep '04

02 Sep '04

Hi all Monticello Users, I've got a problem with nameing packages, I've written an NNTPClient, which lives in the following class category on my system: IHO-Network-Protocols now, if I'd add an IMAP Client, I would like to put it into the same category, but then they would both end up in the same Monticello repositry. Do I have to add System Categories for the special clients? Thanks in advance, Ingo

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Re: MicroSeeker (was Shrinking)
by Jon Hylands 02 Sep '04

02 Sep '04

On Sun, 29 Aug 2004 14:05:18 -0400, "SmallSqueak" <smallsqueak(a)rogers.com> wrote: > Can I come and watch it. Anyone who lives in the Hamilton Ontario area (or wants to travel there) is welcome to come. The run will be in Ancaster, which is just slightly west of Hamilton on highway 403, probably starting around 5:00 or 5:30 pm. If anyone would like to come, please email me privately at jon(a)huv.com and I'll send you directions and times. Later, Jon -------------------------------------------------------------- Jon Hylands Jon(a)huv.com http://www.huv.com/jon Project: Micro Seeker (Micro Autonomous Underwater Vehicle) http://www.huv.com

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RE: 3.7gamma2 candidate basic image
by Frank Shearar 02 Sep '04

02 Sep '04

Doug Way <dway(a)mailcan.com> wrote: > The default browser page seems to be successfully changed in this > image. (Also the welcome window title/headline fonts are fixed.) > > However, for some reason it seems that the http://squeak.org and most > other pages don't load when I open Scamper on its own or from > a welcome > window link. Does anyone else see this? The SM package loader seems > to work fine, and the squeak.org and swiki pages work fine on > browsers > outside of Squeak. If I click on URLs in the Welcome To window, Scamper opens up and renders the page just fine. If I open Scamper up (via the World/open... menu, again, I can navigate to http://squeak.org just fine. This is on a Win2k box (if that makes any difference). frank ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent RNID policy. If you are not the intended recipient you are advised that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please notify the RNID Helpdesk by telephone on: +44 (0) 207 296 8282. The Royal National Institute for Deaf People Registered Office 19*23 Featherstone Street London EC1Y 8SL No. 454169 (England) Registered Charity No. 207720 ********************************************************************

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Bug with SqueakMap
by Damien Cassou 02 Sep '04

02 Sep '04

Hi, I always have a problem with SqueakMap. I have tried with this mail to sum up. Every time, I have started squeak from a fresh directory. My problem appears just after the click on the open>PackageLoader item in the menu (I click on the item, I wait few seconds, I see "Reading a stream" and the error message appears). Here is two test with 2 version of the image. If you want, I can test with others versions (just tell me where I can download them) I'm running gnu/linux Debian : > uname -a Linux localhost 2.6.4-ck1 #2 Thu Mar 25 15:41:26 CET 2004 i686 GNU/Linux ----------- $ squeak -version 3.7b-5 #1 Mon Jul 19 20:31:04 PDT 2004 gcc 3.3.4 Squeak3.7beta of '1 April 2004' [latest update: #5868] Linux gadget.dnsalias.net 2.4.26 #15 Wed Jun 23 08:06:00 PDT 2004 i686 GNU/Linux default plugin location: /usr/lib/squeak/3.7b-5/*.so Image 3.7beta 5868 "Error occured when updating map : UndefinedObject>>do: {ok}". Then, Squeakmap launch and I can install seaside without problem. ----------- $ squeak -version 3.7b-5 #1 Mon Jul 19 20:31:04 PDT 2004 gcc 3.3.4 Squeak3.7beta of '1 April 2004' [latest update: #5868] Linux gadget.dnsalias.net 2.4.26 #15 Wed Jun 23 08:06:00 PDT 2004 i686 GNU/Linux default plugin location: /usr/lib/squeak/3.7b-5/*.so Image 3.7gamma 5985 "Error occurred when updating map: UndefinedObject>>do: Would you like to open a debugger ? {yes,no}" No matter what I choose, a debugger is opened and SqueakMap doesn't launch. When the debugger is open, I can click on "proceed" but it restart by asking me the same question ----------- Thanks for your help Damien

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Re: Squeak-dev Digest, Vol 21, Issue 1
by Colin Putney 02 Sep '04

02 Sep '04

On Sep 1, 2004, at 7:30 PM, Alan Reider wrote: > I have a version of the mysql package that works with 3.7 (37b5). I > made the > changes for the new network code. I had thought that the mysql driver > on > Squeakmap was up to date but if not, I'd be happy to put up what I > have. That would be great, thanks. I don't use MySQL anymore, so I'm not working on the driver, but I'll be happy to add your version as a new release on SqueakMap. If you'd like to take over as maintainer, that would be even better. ;-) > I've written an object persistence layer that works with mysql. It > could some > further development but it's solid, I am using it at www.e4ward.com. > I was > thinking of contributing it if there's any interest. I've no personal interest here, but I'm sure it would be a useful resource for the community. By all means post it! Colin

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Re: Squeak-dev Digest, Vol 21, Issue 1
by Alan Reider 02 Sep '04

02 Sep '04

> So if I want to use MySQL, I'll have to go back to an older image than > 3.7gamma, right? Do you happen to know which image would be preferred? > > And if I want to use a serious relational database with the current > image it would have to be PostgreSQL, right? I have a version of the mysql package that works with 3.7 (37b5). I made the changes for the new network code. I had thought that the mysql driver on Squeakmap was up to date but if not, I'd be happy to put up what I have. > Which of these approaches do most people use when they want to use a > database with Squeak? Or do people use databases with Squeak? I've written an object persistence layer that works with mysql. It could some further development but it's solid, I am using it at www.e4ward.com. I was thinking of contributing it if there's any interest. regards, Alan

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Status of the 3.7 VM for debian and bug with sm
by stéphane ducasse 01 Sep '04

01 Sep '04

hi I just pass a message. A french guy got a lot of problem to make squeakmap working with the latest 3.7 vm. Is it a well-known problem? -------- Message original -------- Sujet: [BUG]UndefinedObject(Object)>>doesNotUnderstand: #do: Date: Thu, 19 Aug 2004 15:34:55 +0200 (CEST) De: damien.cassou(a)laposte.net Pour: damien.cassou(a)laposte.net here insert explanation of what you were doing, suspect changes you've made and so forth. 19 August 2004 3:34:40 pm VM: unix - a SmalltalkImage Image: Squeak3.7gamma [latest update: #5985] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /home/quetzalcoatl/squeak-3.7 Trusted Dir /home/quetzalcoatl/squeak-3.7/secure Untrusted Dir /home/quetzalcoatl/squeak-3.7/untrusted UndefinedObject(Object)>>doesNotUnderstand: #do: Receiver: nil Arguments and temporary variables: aMessage: do: [] in ImageSegment>>comeFullyUpOnReload: {[:importedObject | impo...etc... Receiver's instance variables: nil ImageSegment>>comeFullyUpOnReload: Receiver: an ImageSegment Arguments and temporary variables: smartRefStream: a SmartRefStream a ByteArray(39 70 114 111 109 32 83 113 117 10...etc... mapFakeClassesToReal: an IdentityDictionary(Fake37SMSqueakMap->SMSqueakMap ) ccFixups: true receiverClasses: an IdentitySet() rootsToUnhiberhate: nil myProject: nil importedObject: nil aFake: nil Receiver's instance variables: arrayOfRoots: nil segment: a WordArrayForSegment(1929386342 423113227 2164979344 2161840573 31614...etc... outPointers: #(Fake37SMSqueakMap nil 'sm' true Dictionary SMFileCache Array an ...etc... state: #imported segmentName: nil fileName: nil endMarker: SmartRefStream(ReferenceStream)>>next userRootCnt: 1 renamedClasses: nil SmartRefStream(DataStream)>>next Receiver: a SmartRefStream a ByteArray(39 70 114 111 109 32 83 113 117 101 97 107 51 46 54 32 111 10...etc... Arguments and temporary variables: type: 16 selector: #readShortInst anObject: an ImageSegment isARefType: true pos: nil internalObject: nil Receiver's instance variables: byteStream: a RWBinaryOrTextStream a ByteArray(39 70 114 111 109 32 83 113 117 ...etc... topCall: #marked basePos: 151 references: an IdentityDictionary() objects: an IdentityDictionary(5->#('class structure' a Dictionary(#Array->#(0)...etc... currentReference: 2959 fwdRefEnds: an IdentityDictionary() blockers: an IdentityDictionary() skipping: an IdentitySet() insideASegment: false structures: a Dictionary(#Array->#(0) #ArrayedCollection->#(0) #Association->#(...etc... steady: a Set(Integer UUID SMDocument Symbol SMCategorizableObject String Seque...etc... reshaped: nil renamed: a Dictionary(#FlasherMorph->#Flasher ) renamedConv: a Dictionary(1->#SMSqueakMap 5->#Dictionary 6->#SMFileCache 7->#Ar...etc... superclasses: a Dictionary(#Array->#ArrayedCollection #ArrayedCollection->#Sequ...etc... progressBar: nil objCount: nil classInstVars: nil SmartRefStream(ReferenceStream)>>next Receiver: a SmartRefStream a ByteArray(39 70 114 111 109 32 83 113 117 101 97 107 51 46 54 32 111 10...etc... Arguments and temporary variables: curPosn: 2959 skipToPosn: nil haveIt: false theObject: false wasSkipping: nil Receiver's instance variables: byteStream: a RWBinaryOrTextStream a ByteArray(39 70 114 111 109 32 83 113 117 ...etc... topCall: #marked basePos: 151 references: an IdentityDictionary() objects: an IdentityDictionary(5->#('class structure' a Dictionary(#Array->#(0)...etc... currentReference: 2959 fwdRefEnds: an IdentityDictionary() blockers: an IdentityDictionary() skipping: an IdentitySet() insideASegment: false structures: a Dictionary(#Array->#(0) #ArrayedCollection->#(0) #Association->#(...etc... steady: a Set(Integer UUID SMDocument Symbol SMCategorizableObject String Seque...etc... reshaped: nil renamed: a Dictionary(#FlasherMorph->#Flasher ) renamedConv: a Dictionary(1->#SMSqueakMap 5->#Dictionary 6->#SMFileCache 7->#Ar...etc... superclasses: a Dictionary(#Array->#ArrayedCollection #ArrayedCollection->#Sequ...etc... progressBar: nil objCount: nil classInstVars: nil --- The full stack --- UndefinedObject(Object)>>doesNotUnderstand: #do: ImageSegment>>comeFullyUpOnReload: SmartRefStream(DataStream)>>next SmartRefStream(ReferenceStream)>>next - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SmartRefStream>>next SmartRefStream>>scanFrom: ObjectScanner>>scanFrom: [] in RWBinaryOrTextStream(PositionableStream)>>fileInAnnouncing: {[val := (self peekFor: $!) ifTrue: [(Compiler evaluate: self nextChunk l...]} BlockContext>>on:do: [] in RWBinaryOrTextStream(PositionableStream)>>fileInAnnouncing: {[:bar | [self atEnd] whileFalse: [bar value: self position. self skipS...]} ...etc...

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