- Pharo-dev - lists.pharo.org

[Pharo-project] Working on enhancing the transcript morph
by Fernando Olivero May 2, 2011

May 2, 2011

Hi, i announce that i'm working on enhancing the TranscriptMorph, and fixing all the related issues to the addition of the new Transcript, and its (unpopular) read-only Morph. Around next week i will submit the fixes and enhancements. Fernando

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Re: [Pharo-project] [Vm-dev] Fwd: System time
by David T. Lewis May 2, 2011

May 2, 2011

I have not looked at this carefully, but I suspect an issue in Chronology (as opposed to a VM or primitive issue). DateAndTime initializes some cached values at image startup time, and thereafter calculates things based on the millisecond clock. If the millisecond clock drifts with respect to system time on the underlying platform (as presumably would be the case if the system clock is synchronized using ntp), then DateAndTime's opinion about current time will drift with respect to the underlying platform. Dave On Sun, May 01, 2011 at 08:24:49AM +0200, stephane ducasse wrote: > > Begin forwarded message: > > > From: Jimmie Houchin <jlhouchin(a)gmail.com> > > Date: May 1, 2011 4:15:40 AM GMT+02:00 > > To: Pharo-project(a)lists.gforge.inria.fr > > Subject: Re: [Pharo-project] System time > > Reply-To: Pharo-project(a)lists.gforge.inria.fr > > > > Hello, > > > > My OS for this application is Windows. On a freshly opened image, the image and OS time are in sync. Over a period of time the image drifted 34 seconds away from OS time. I do not know how long I had this image open, but it has been a number of days, possibly a week plus. > > > > I saved the image and quit. I reopened the image and did DateAndTime now and it was in sync with the OS once again. Same image, vm and OS that was out of sync by 34 seconds only one minute before. > > > > I have opened an image on my server which is also running the latest cog vm, the current Pharo 1.3 and Windows Vista. I am going to periodically do a DateAndTime now to log the drift if any. Prior to opening this image I updated the OS system clock with time.nist.gov which is about 1000 miles away. > > > > I know that within a second or so it can be subject to my coordination of doing DateAndTime now while watching my OS system clocks seconds. But 34 seconds is beyond any subjective standards. > > > > The only reason I discovered this was while exploring how I want to retrieve my data, act upon my data and then pause (Delay wait) until time to repeat. > > dtnow := DateAndTime now. > > dtnext := DateAndTime year: 2011 month: 4 day: 30 hour: 11 minute: i second: 5. "The next minute in the future" > > (Delay forDuration: (dtnext - dtnow)) wait. > > > > I got an error, that Duration cannot be a negative number. As I processed the debugger, I saw that dtnow was greater than dtnext. I watched the OS clock and manually selected the next minute before I executed. However, I was within that 34 second window. > > > > So now I am exploring the problem. > > > > Thanks. > > > > Jimmie > > > > On 4/30/2011 5:06 PM, Alexandre Bergel wrote: > >> 'Time now' gives me the same result than OSX > >> > >> Alexandre > >> > >> > >> On 30 Apr 2011, at 16:15, Jimmie Houchin wrote: > >> > >>> On 4/30/2011 11:50 AM, St?phane Ducasse wrote: > >>>>> I am developing a time sensitive application. I poll a server every minute for new data. The data is time sensitive and the sooner I can get the data to the release of the data the better. > >>>>> > >>>>> I have noticed that Pharo's system time drifts away from the OS system time. I would really like the Pharo system time to be the correct time. > >>>> do you have a repeatable scenario? > >>>> VM > >>>> Image information. > >>> Pharo 1.3 and the latest Cog. > >>> > >>>>> I have not been able to find where in Pharo I can call to update the System clock to the correct time. > >>>> you can use OSProcess (only mac and linux) > >>> No, that's not the problem. The OS clock is right. It's Pharo that has drifted away from correct time. Regardless it would be nice if I have to correct the OS clock, it would still be nice to resync Pharo with the OS, keep both in sync and correct. What I am wanting is simply to resync the Pharo clock with the OS clock. > >>> > >>> It seems that when the Pharo image is started that it gets the OS System time, but keeps its own time after that. Now I do not know the consequences of Pharo adjusting its time backward. If this isn't possible, then I might have to do some workarounds to insure that I get my data in a timely manner. > >>> > >>> The image I have been developing in is currently about 30 seconds ahead of the OS clock. It is on my laptop. It might be due to the laptops sleep and hibernation. I have not tested this on my server. > >>> > >>> That is the situation as best I know it. > >>> > >>> Thanks. > >>> > >>> Jimmie > >>> > > > >

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[Pharo-project] System time
by Jimmie Houchin May 2, 2011

May 2, 2011

I am developing a time sensitive application. I poll a server every minute for new data. The data is time sensitive and the sooner I can get the data to the release of the data the better. I have noticed that Pharo's system time drifts away from the OS system time. I would really like the Pharo system time to be the correct time. I have not been able to find where in Pharo I can call to update the System clock to the correct time. Any help greatly appreciated. Jimmie

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[Pharo-project] monthly skype chat?
by StÃ©phane Ducasse May 2, 2011

May 2, 2011

Hi guys may be the irc did not work well. I still think that there is a value in communication and understanding our objectives. So may be a skype discussion would be great or if you have any other ideas to communicate let me know. Stef

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[Pharo-project] squeaksource is down - a different perspective
by Torsten Bergmann May 2, 2011

May 2, 2011

>squeaksource.com is down a lot. People get frustrated at times. Yes, and unfortunately it looks like people love to be frustrated. Otherwise people would give Tobias more feedback on SqueakSource3 (see [1]) which IMHO could overtake the job in the future and replace the problematic image? Or is the outage a traffic problem and may happen with SS3 too? Is the (daily?) restart the only option we have or is a migration to a newer SS version possible? And yes - SmalltalkHub is on the way, but we still dont know how well it fits our needs/works/scales. Yes, this sounds negative but I think it can replace Squeaksource only in a long term... Bye T. [1] http://lists.gforge.inria.fr/pipermail/pharo-project/2011-April/047780.html -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone

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[Pharo-project] stable RPackage version
by Tudor Girba May 2, 2011

May 2, 2011

Hi, ConfigurationOfRPackage 1.0 seems to go out of sync with the image after a while. For example, download the following Moose image: http://hudson.moosetechnology.org/job/moose-latest-dev/lastSuccessfulBuild/… and try RPackage organizer packageNamed: 'Famix-Core' If you load RPackage 3.0 it works. So, can we mark 3.0 as stable? Cheers, Doru -- www.tudorgirba.com "Being happy is a matter of choice."

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[Pharo-project] prog21: Impressed by Slow Code
by Sven Van Caekenberghe May 2, 2011

May 2, 2011

He might as well talk about Smalltalk: http://prog21.dadgum.com/98.html Sven

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[Pharo-project] Don't you think "Windows" menu item should be with the rest?
by Mariano Martinez Peck May 2, 2011

May 2, 2011

Right now, there is a special section for "Windows", but I think it is easier if it is together with Help, System, Tools, etc. I attach a screenshot. In addition, it changed the order in compare with Pharo 1.2 where it was: Tools Windows System Help What do you tink ? -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] [Progress Report] Zinc HTTP Components
by Sven Van Caekenberghe May 2, 2011

May 2, 2011

Hi, It has been quite a while, but here is another progress report on the Zinc HTTP Components project. First of all, Zinc HTTP Components has found a new home: http://zn.stfx.eu and more importantly, it is now self hosted, i.e. the pages you see are served by Zn, and all testing and debugging handlers are now available live. For more information regarding this production quality deploy, please see http://zn.stfx.eu/#livedemo The documentation pages have been updated a bit to better reflect the current status of the project. Second, I thank all people who contributed by testing Zn, giving feedback as well as for some of them actual code. Thank you, CÃ©drick BÃ©ler, Philippe Marschall, Esteban Lorenzano, Jan van de Sandt, StÃ©phane Ducasse, Andy Burnett, Norbert Hartl, Paul DeBruicker, HernÃ¡n Morales Durand and Tony Fleig. (I hope I didn't forget anyone). Thanks Lukas Renggli and Marcus Denker for adding Zn to their continuous integration servers. Sven Here is a list of changes since January of this year: - introduction of ZnUrl class - improved ZnStaticFileServerDelegate - introduced #asZnMimeType on ZnMimeType, MIMEType & String - Zinc-AWS proof of concept client - added lots of comments - several fixes to Zinc's Seaside adaptor, ZnZincServerAdaptor (encoding issues) - split of ZnNetworkingUtils from ZnUtils to separate related functionality - fixed ZnClient class>>#getImageOfType:usingParser:fromUrl: to correctly report responses with unexpected mime types - promoted ZnFixedClient>>#fixedUrl: to public status and changed it to accept ZnUrl objects as well for more flexibility (allowing users to add query/fragment URL elements in addition to the path) - ZnUserAgent (and ZnHttpClient) now can follow relative redirect locations - introduced ZnMultiValueDictionary to allow multiple values to be stored under one key as an array, using it for queries and headers - changed the redirect behavior for POST/PUT requests: the common practice is to turn these into GET request, see ZnUserAgent>>#method:for:headers:data:imit: and ZnUserAgent>>#prepareRedirect: - added simple ConfigurationOfZincHTTPComponents - added ZnByteEncoder to handle single byte encodings that do not map directly to the lower Unicode section (for example Latin2, ISO-8859-2) by reusing the mapping tables from ByteTextConverter - added #handlesEncoding: and #newForEncoding: protocol to class side of ZnCharacterEncoding hierarchy - added proper content length computation to ZnMultiPartFormDataEntity (bugfix) - some code cleanup to ZnEntity content length computation - added ZnUrl>>#queryDo: ZnApplicationForUrlEncodedEntity>>#fieldsDo: - added ZnMessage>>#resetEntity: to allow overwriting content type and length when these are already set - fixed a typo in the ZnMimePart instance creation methods (formdata should be form-data) - added ZnResponse>>#serverError: - implemented ZnHTTPSocketFacade class>>#httpPostMultipart:args:accept:request: - added ZnHTTPSocketFacade class>>#constructMultiPartFormDataEntity: - extended ZnZincServerAdaptor to handle multipart formdata posts (including file uploads) - introducing exception hierarchy in Zinc-HTTP-Exceptions - added ZnResponse>>#isNotModified - bugfix to Base64 encoding that introduced newlines - changed ZnZincServerAdaptor>>#defaultCodec to GRNullCodec - added new logging framework in Zinc-HTTP-Logging, consisting of ZnLogEvent (an Announcment), ZnLogSupport and ZnLogListener and subclasses ZnTranscriptLogger, ZnMemoryLogger and ZnFileLogger - now using the new logging facilities in Zn[Single|Multi]ThreadedServer, ZnFixedClient and ZnUserAgent - now using the new logging facilities in Zn[Single|Multi]ThreadedServer, ZnFixedClient and ZnUserAgent - small fix to ZnUrl>>#printPathOn: to deal with cases where forward slashes are encoded in URLs - various small changes related to the Gemstone port (byte array literals, Unicode creation) - fixed an important bug related to reading entities upToEnd The latest version now is: Name: Zinc-HTTP-SvenVanCaekenberghe.150 Author: SvenVanCaekenberghe Time: 1 May 2011, 7:19:13 pm UUID: 8fe0b470-7728-454d-bc90-fa42d8330817 Ancestors: Zinc-HTTP-SvenVanCaekenberghe.149

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May 2, 2011

this is strange I was trying to code a simple list of method browser and my browser seems to MorphExtension>>valueOfProperty: aSymbol "answer the value of the receiver's property named aSymbol" ^ extension ifNotNil: [extension valueOfProperty: aSymbol] I end up in a endless loop update: aParameter |state| aParameter ifNil: [^self]. getLabelSelector ifNotNil: [ aParameter == getLabelSelector ifTrue: [ (self labelMorph respondsTo: #font) ifTrue: [self label: (model perform: getLabelSelector) font: self labelMorph font] ifFalse: [self label: (model perform: getLabelSelector)]]]. state := self getModelState. (state ~= (self valueOfProperty: #lastState) or: [ ^^^ when I inspect self I get a PluggableButtonMorph but the method shown in the debugger is MoprhExtension?????? getStateSelector isNil and: [aParameter == #onOffColor]]) ifTrue: [self color: self colorToUse. self setProperty: #lastState toValue: state]. aParameter == getEnabledSelector ifTrue: [^self enabled: (model perform: getEnabledSelector)]. getColorSelector ifNotNil: [ | cc | color = (cc := model perform: getColorSelector) ifFalse: [ color := cc. self onColor: color offColor: color. self changed ]].

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