August 2009 - Pharo-dev - lists.pharo.org

[Pharo-project] SocketAddress>>printOn: - a (potentially serious) defect?

by Schwab,Wilhelm K

SocketAddress>>printOn: looks like it does some questionable things, but I am fuzzy on what exactly is happening and what should be done about it. My thought would be that the address should have name and number aspects, that resolving would do the respective lookups, and that inspecting should not attempt the lookups. Do you agree? How broken is the implementation? I cant' say that I am thrilled about addresses being inherited from ByteArray - I suppose it can happily be the address and have an iv for the name, but what if one knows the name and later wants to resolve the number? This sounds like a job for a subclass of Object with named variables. Anybody agree or disagree? Bill

Aug. 14, 2009

[Pharo-project] ORM for Pharo

by Esteban A. Maringolo

My prototype is getting less proto, and I found out it doesn't have complex relations, and the system is going to perform faster if I have tables for most of it. What are the choices I have for doing ORM in Pharo? Â¿Does GLORP work? Â¿Any other options? I don't have a strong preference for the RDBMS engine, it can be anything (free), being it MySQL, PostgreSQL or Sql Server Express. Best regards, Esteban A. Maringolo

Aug. 14, 2009

Re: [Pharo-project] combo box?

by Mariano Martinez Peck

I don't have access there but I least I put them here: http://code.google.com/p/pharo/wiki/CodeSnippets 2009/8/14 <csrabak(a)bol.com.br> > I vote this to be put as an answer to FAQ! > > > Em 14/08/2009 15:01, *Mariano Martinez Peck < marianopeck(a)gmail.com >*escreveu: > > > See this: > > UITheme exampleBasicControls. > UITheme exampleColorControls. > UITheme exampleDialogs. > UITheme exampleGroups. > UITheme exampleOtherControls. > UITheme exampleWindowWithToolbars. > > 2009/8/14 Gabriel Brunstein <gaboto(a)gmail.com<http://mce_host/compose?to=gaboto@gmail.com> > > > >> anybody know how to do a combo box in pharo? any example to look? >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr<http://../../../undefined/compose?to=Pharo> >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Aug. 14, 2009

Re: [Pharo-project] Complex number support discussion

by John McIntosh

Why not have sqrt throw the exception and suggest that you could load the optional complex logic if you actual are working with complex numbers On 8/14/09, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> wrote: > Ken, > > All of us will welcome something that can do sophisticed mathematics, > provided it does not break the base system when installed, and has > no/limited runtime penalty when not needed. > > Bill > > > > -----Original Message----- > From: pharo-project-bounces(a)lists.gforge.inria.fr > [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Ken.Dickey > Sent: Friday, August 14, 2009 10:38 AM > To: Pharo-project(a)lists.gforge.inria.fr > Subject: Re: [Pharo-project] Complex number support discussion > > Schwab,Wilhelm K" <bschwab(a)anest.ufl.edu> >> A 2-10x performance hit is all the more reason why such a creation >> should be dormant unless specifically invoked - translation, no >> coercion into the controversial type. Â While there are uses for systems >> that are "smart" >> enough to give exact answers, most computation happens in a world of >> tolerances, with numbers that are not cherry picked for aesthetics. >> >> As somebody else (Sig perhaps) said, the behavior of the base system >> magnitude classes should not change when a different package is loaded. >> Â #asComplex is the gateway through which one can tell the system that >> complex numbers are expected and desired. Â The more you write, the >> more it becomes clear that there also would need to be a >> #asComplexSymbolic or something to invoke behavior one might expect >> from Maple and other symbolic systems. >> >> I strongly recommend starting with a numerical approach to a "closed >> system" of complex numbers. Â GSL provides much of what should be >> available, and can be mapped into Pharo by FFI/Alien. Â The result >> would get used. Â If you then want to compete with Maple and >> Mathematica, that really should be done separately. Â For examle, there >> are times when I use logs to estimate the number of digits required to >> hold a number, and if the argument is negative, I goofed and expect an >> error. > > Bill, > > My apologies for mixing a personal "philosophy discussion" into the Complex > header. Â The Complex implementation does not suffer from the performance hit > mentioned and as I stated earlier, I have no current desire to make Pharo > into Mathematica. > > I would welcome a package which did this, however. > > -KenD > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- =========================================================================== John M. McIntosh <johnmci(a)smalltalkconsulting.com> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ===========================================================================

Aug. 14, 2009

[Pharo-project] Question about Socket

by Mariano Martinez Peck

Hi folks: I am preparing my SqueakDBX talk for ESUG and I am doing some comparisons between a database driver with an external library trough FFI and a native driver. I know FFI locks the VM until the function it is being invoked, finishes. But I don't know what happens with Sockets. Do sockets lock the hole VM until you obtain a response? Thanks for any light in this field. Best, Mariano

Aug. 14, 2009

[Pharo-project] Networking - how much experience/testing is happening?

by Schwab,Wilhelm K

Hello all, Are any of you doing extensive networking with Pharo? IMHO, Seaside connections to a local copy of apache does not really count, since it won't be as likely to see dropped connections and other challenges. I ask because I have LDAPlayer talking to UF's server, and had Pharo lock up something awful. This was over a pre-production vpn connection from home, and on a not-really-supported 64 bit system tricked into running the 32 bit client. I'm not sure how stable all of that is. Still, I had to dust off the end-process button; cmd-. brought up debuggers, but those were unresponsive too. Andreas Raab mentioned a snag with LDAPlayer not reacting well to network errors, so that might have been the problem. Still, I can see the ldap worker thread going nuts, but the UI thread??? If it's a fluke, fine; if this happens in real use, we have a problem. Bill

Aug. 14, 2009

Re: [Pharo-project] combo box?

by csrabak＠bol.com.br

Aug. 14, 2009

Re: [Pharo-project] #< if at first you dont succeed..

by csrabak＠bol.com.br

Aug. 14, 2009

Re: [Pharo-project] OBDependencyWalker for Pharo

by csrabak＠bol.com.br

Aug. 14, 2009

Re: [Pharo-project] OBDependencyWalker for Pharo

by csrabak＠bol.com.br

Aug. 14, 2009