January 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] latest build yields stack trace running #cleanUpForProduction
by Henrik Johansen Jan. 18, 2012

Jan. 18, 2012

On Jan 18, 2012, at 12:49 45PM, Henrik Johansen wrote: > > On Jan 18, 2012, at 12:44 58PM, Mariano Martinez Peck wrote: > >> >> >> On Wed, Jan 18, 2012 at 12:25 PM, Henrik Johansen <henrik.s.johansen(a)veloxit.no> wrote: >> >> On Jan 18, 2012, at 12:14 47PM, Mariano Martinez Peck wrote: >> >> > Well....it seems I found the problem. And in fact, it has alredy been solved by Levente in Squeak...I waste so many hours...and the fix was there.. >> > >> > So, can you try changing to >> > >> > sizeFor: numberOfElements >> > "Return the minimum capacity of a dictionary that can hold numberOfElements elements. At least 25% of the array must be empty and the return value must be a power of 2." >> > >> > ^(numberOfElements * 4 // 3) asLargerPowerOfTwo max: 1 >> > >> > >> > And see if it works? it works hereâ¦ >> >> It should not be necessary. >> The real bug is that Integer >> isPowerOfTwo does not check for the edge case: >> >> 0 isPowerOfTwo true >> >> A small fix: >> >> Integer >> #isPowerOfTwo >> "Return true if the receiver is an integral power of two." >> ^ self ~= 0 and: [(self bitAnd: self-1) = 0] >> >> >> Indeed :) >> now...even if that's correct, do you think there could be side effect in other places? > > Not any that won't merely magically start working the way you expect them to, like say (looking at the senders): > > SmallInteger maxVal +1 numberOfDigitsInBase: 0 > > Cheers, > Henry IntegerTest >> testPowerOfTwo should also be changed though. :P Cheers, Henry

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[Pharo-project] [update 1.4] #14285
by StÃ©phane Ducasse Jan. 18, 2012

Jan. 18, 2012

14285 ----- - Issue 5178: Unload RB packages Stef

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Re: [Pharo-project] [Vm-dev] Primitive to set an identityHash
by Henrik Johansen Jan. 18, 2012

Jan. 18, 2012

I really don't see what good could come of it being available in generalâ¦ Cheers, Henry On Jan 18, 2012, at 8:16 26AM, stephane ducasse wrote: > > After the discussions we got and with a really big comment I would add it. > > Stef > On Jan 17, 2012, at 11:02 PM, Mariano Martinez Peck wrote: > >> >> >> On Tue, Jan 17, 2012 at 8:04 PM, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: >> >> >> >> On Tue, Jan 17, 2012 at 8:43 AM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: >> >> Hi guys. Becuase of some work I am doing with proxies, I would like to be able to set a specific identityHash to a proxy instance. I can add this primitive in my VM, but I was thinking if this could be of a general interest also? >> >> It already exists. See primitiveSetIdentityHash in InterpreterPrimitives. Primitive # 161. >> >> Thank you so much Eliot. You even save my time of coding it ;) I should have checked before...I always forget about InterpreterPrimitives hahaha >> So...Pharaoers... do you want the image side of the primitive and some tests? I can provide that if desired (in my opinion I would include it) >> >> Cheers >> >> >> >> >> >> Cheers >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >> >> >> >> -- >> best, >> Eliot >> >> >> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >

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[Pharo-project] Question about #becomeForward
by Sven Van Caekenberghe Jan. 18, 2012

Jan. 18, 2012

Hi, I want to create an array that references itself in its second element like this | array | array := #(1 nil). array at: 2 put: array. array I thought that the following would work | array elements | array := Array new. elements := Array with: 1 with: array. array becomeForward: elements. array And it does in a workspace, but not in my code where it looks like this parseArray | array elementsArray | array := Array new. self storeReference: array. elementsArray := self parseArrayInternal. elementsArray size > 0 ifTrue: [ array becomeForward: elementsArray ]. ^ array The #become[Forward] is necessary because the array size is not known up front and one of its elements might refer to itself, possibly deeper down. So I guess I am doing something wrong, the question is what ? Or is there another way to achieve the same effect ? Thx, Sven

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[Pharo-project] First steps making OB work in 1.4
by Guillermo Polito Jan. 17, 2012

Jan. 17, 2012

Hi! I've been working the last days in making OB work in pharo 1.4. I updated several deprecations like method reference and stuff and discovered some bugs that I've already published in: http://code.google.com/p/pharo/issues/detail?id=5189&q=milestone%3D1.4&cols… http://code.google.com/p/pharo/issues/detail?id=5183&q=milestone%3D1.4&cols… I've already proposed some fixes for them, but if anyone can have a look too I'll feel better :). Those fixes are needed in order to load OB. Meanwhile, you can also have some patches from the cs and fileout I attach. What's working now? OB + OCompletion + Shout + Sunit integration. So, It's everything but Refactoring browser, which is a little more difficult since there is another RB version loaded in the image :P. To load it (after integrating the patches): Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfOmniBrowser'; load. (ConfigurationOfOmniBrowser project version: #stable) load: #( 'Core Tests' 'OCompletion Tests' ) , #( 'Core' 'OB-SUnitIntegration' 'OB-Shout' 'OCForOB'). Cheers, Guille

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Re: [Pharo-project] [Vm-dev] Primitive to set an identityHash
by Mariano Martinez Peck Jan. 17, 2012

Jan. 17, 2012

On Tue, Jan 17, 2012 at 8:04 PM, Eliot Miranda <eliot.miranda(a)gmail.com>wrote: > > > > On Tue, Jan 17, 2012 at 8:43 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> >> Hi guys. Becuase of some work I am doing with proxies, I would like to be >> able to set a specific identityHash to a proxy instance. I can add this >> primitive in my VM, but I was thinking if this could be of a general >> interest also? >> > > It already exists. See primitiveSetIdentityHash in InterpreterPrimitives. > Primitive # 161. > Thank you so much Eliot. You even save my time of coding it ;) I should have checked before...I always forget about InterpreterPrimitives hahaha So...Pharaoers... do you want the image side of the primitive and some tests? I can provide that if desired (in my opinion I would include it) Cheers > > >> Cheers >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >> > > > -- > best, > Eliot > > > -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] Speeding up Finder string search
by Stefan Marr Jan. 17, 2012

Jan. 17, 2012

Hi: The finder is annoyingly slow when doing string searches. Compared to a 'grep' its multiple magnitudes slower, at least from my perception :( Profiling pointed my at RemoteString>>string and its use of readOnlyCopy on the SourceFiles. I put a cache of these read only files into ExpandedSourceFileArray and get a nice speedup. { [ Finder new constructSourceDictionary ] timeToRun. [ Finder new constructSourceDictionary ] timeToRun. [ Finder new constructSourceDictionary ] timeToRun . } Without Cache: #(32079 29034 32274) With Cache: #(10757 10718 11050) While that works for the searching, it does fall apart for other uses of RemoteString>>string. (For instance, filing out the changes...) If anyone has an idea how to avoid the overhead of copying, I would be all ears. Thanks Stefan -- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr Phone: +32 2 629 2974 Fax: +32 2 629 3525

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Jan. 17, 2012

Hi guys when I do the following |file| [ file := StandardFileStream fileNamed: 'loglog.txt'. file nextPutAll: 'Start'. [ file nextPutAll: (Compiler evaluate: '55 + 88 poipuiu') asString] on: Error do: [:ex | ex outer errorReportOn: file]. ] ensure: [file close]. I get a pop up DNU poipuiu while I would like to get the stack on the stream. May be my mistake is obvious but I do not see it. Stef

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[Pharo-project] Design change possible with fast SSD's possible?
by Guido Stepken Jan. 17, 2012

Jan. 17, 2012

Hi! I am just reviewing some timing adjustments in Linux, which came neccessary due to the tremendous speed improvements of SSD Raid, > 1 mio IOPS, compared to fastest Barracudas disks with > 200 IOPS max. IS there still a "Image" neccessary in Smalltalk then? Or has this former "design approach" nowerdays rather significant disadvantages? (32 Bit, hanging IO during sync, GC....) Tnx, Guido Stepken Am 13.01.2012 20:43 schrieb "GastÃ³n Dall' Oglio" < gaston.dalloglio(a)gmail.com>: > Congratulation for the team!!! > > A little comment, in the page of OpenDBX the name and link of DBXTalk are > bad (SqueakDBX): > http://www.linuxnetworks.de/doc/index.php/OpenDBX > > >

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[Pharo-project] CogVM on Fedora
by Garret Raziel Jan. 17, 2012

Jan. 17, 2012

Hi, does anybody have experience with CogVM on 64bit Fedora? I'm currently using Fedora 16 and prebuild vm doesn't work (says that there is some problem with x11 plugin). Is there any simple method how to run it? Or any simple method how to build it from sourcecode? Jan

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