January 2011 - Pharo-users - lists.pharo.org

squeak vm without MMU
by Annick Fron Jan. 13, 2011

Jan. 13, 2011

Hi, Is it possible to use pharo on a processor with MMU (Memory Unit Management ) ? Namely my target OS is a Linux with the following differences : ============ The kernel is a collection of patches to make the standard Linux kernel run on CPUs that do not have an MMU. As a consequence you will encounter some differences between the kernel and the standard Linux behavior: u no fork() â consider using vfork() instead but beware of the difference of their semantics u no daemon() â it is usually implemented on top of fork and cannot be easily replaced without changing the semantics. u fixed stack size -- the stack of an application is set at execution time and cannot grow during runtime. The default stack size is 4k! It can be increased with the "-s" option of m68k-uClinux-elf2flat. u limited libc compared to glibc -- either add more to libc, or remove some functionality. u no support for ELF binary file format u very limited support for shared libraries due to missing MMU -- all applications get linked statically u mmap() is very inefficient u no paging -- applications have to be loaded completely into RAM, the heap is very susceptible to fragmentation. ======== Annick Fron

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Pharo Kernel
by Annick Fron Jan. 13, 2011

Jan. 13, 2011

Hi, I have donwloaded Pharo-Kernel 12-12229, and I have launched the PharoKernel.image. It comes under Linux with a blank window (where in Windows it is headless). How is it possible to get a real headless kernel on Linux ? Annick Fron

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Finding RB parse tree rule for replacements
by HernÃ¡n Morales Durand Jan. 13, 2011

Jan. 13, 2011

Recently I wanted to replace all method sends of oldMessage to newMessage in a specific method category in a class, then I wrote this little script I want to share with you: | className realClass replacer category | className := #MyClass. realClass := Smalltalk at: className. category := #accessing. replacer := RBParseTreeRewriter new replace: '`receiver oldMessage' with: '`receiver newMessage'; yourself. (realClass organization listAtCategoryNamed: category) collect: [:sel | | parseTree | parseTree := ( realClass >> sel) parseTree. (replacer executeTree: parseTree) ifTrue: [ realClass compile: replacer tree newSource " [1] " ] ] Now some questions: 1) In [1] "( RBClass existingNamed: className ) compileTree: replacer tree" would be more appropiate? I get a MNU when evaluated with latest AST/Refactoring. 2) The above script have some problems, if you want to get replaced 'this is a string' asString. to 'this is a string' asText it won't match. The same happens with: " self model asString " and other patterns. How to modify the rewriter to match oldMessage/newMessage at any point? i.e. [: tmp | anObject1 blabla1 blabla2 oldMessage blabla3 ] Thanks in advance, -- HernÃ¡n Morales Information Technology Manager, Institute of Veterinary Genetics. National Scientific and Technical Research Council (CONICET). La Plata (1900), Buenos Aires, Argentina. Telephone: +54 (0221) 421-1799. Internal: 422 Fax: 425-7980 or 421-1799.

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Updated ConfigurationsOf...scripts?
by HernÃ¡n Morales Durand Jan. 12, 2011

Jan. 12, 2011

Hi, Is there any page/tool where all the updated ConfigurationOf.... installing scripts are found? Best regards, -- HernÃ¡n Morales Information Technology Manager, Institute of Veterinary Genetics. National Scientific and Technical Research Council (CONICET). La Plata (1900), Buenos Aires, Argentina. Telephone: +54 (0221) 421-1799. Internal: 422 Fax: 425-7980 or 421-1799.

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Smalltalk server pages
by Annick Fron Jan. 6, 2011

Jan. 6, 2011

Hi, and in order to get a minimum of dynamic pages, (I think Seaside will be too large for my memory) what is best to get simple Smalltalk server pages, swazoo or Komhttpserver ? Annick Fron

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James Robertosn's Pharo videos added to website
by Mariano Martinez Peck Jan. 6, 2011

Jan. 6, 2011

In: http://www.pharo-project.org/documentation/screencasts<http://www.pharo-project.org/documentation/screencasts> cheers mariano

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GUI confused
by Jeff Gray Jan. 5, 2011

Jan. 5, 2011

I've been looking at the UITheme examples such as exampleBasicControls. I'm used to building windows (in e.g. C#) where I create a subclass of a window class and then extend it with controls and methods. Looking at the UITheme examples it is building up a window by creating an instance of PluggableDialogWindow and then calling methods to add controls. If I have a number of windows in my app would I have one class to build all the windows? How do I hook up methods? Would they be methods in this window building class? Am I missing the point? :-) -- View this message in context: http://forum.world.st/GUI-confused-tp3175361p3175361.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Telnet client
by Aidan Gauland Jan. 3, 2011

Jan. 3, 2011

Hi, I want to create a MUD <http://en.wikipedia.org/wiki/MUD> client (a client for games played over Telnet) with Pharo, but I'm stuck on how best to use Pharo as a Telnet client. I've heard of the cURL plugin, but I'm not sure if that can be (easily) used for anything other than file transfers. Even if I built and installed it, I'm not confident I'd be able to tell for certain whether I can use it in the way I want. I also found this <http://map.squeak.org/package/14bcecc6-dbb8-4866-bb0c-25278ca882ba>, but that's about eight years old and its homepage link is dead, so it doesn't look too promising. I found TelnetProtocolClient in the Pharo image, but that does not seem to be at all what I need. Can someone with experience with telnetting from within Pharo/Squeak point me in the right direction? Thanks, Aidan

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Numbers showing up in Transcript
by Daniel Klein Jan. 2, 2011

Jan. 2, 2011

I'm getting a bunch of numbers showing up in the Transcript without my doing anything (that I know of). For example: 18 19 19 20 22 29 557 562 570 571 598 599 514 515 What are they? And why are they showing up? Dan

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minimal pharo image
by Annick Fron Jan. 1, 2011

Jan. 1, 2011

Hi, I am looking for a minimal pharo image. Does anyone know how much file space I need for a minimal image with smalltalk servlets and http at least, or even Seaside ? Annick Fron

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