- Pharo-users - lists.pharo.org

Re: [Pharo-users] Porting Voss to Pharo

by stepharo

Now I understand that people may not be motivated to port when commercial costs are not clear and impact of the LGPL on the system. Stef Le 6/3/15 16:16, stepharo a Ã©crit : > Hi guys > > if some of you are interested to drive porting VOSS to Pharo, let me know > John sent me the code and I can give it to you. > There is a dual license > - LGPL > - commercial > Now I do not know the prices for business. > > Stef > > > Begin forwarded message: > > From: "John Clapperton" <jc(a)logicarts.com> > Subject: VOSS Porting Tips 001 > Date: 24 Feb 2015 11:30:37 GMT+1 > To: 'StÃ©phane Ducasse' <stephane.ducasse(a)inria.fr> > > Hi Stephane, > > I strongly recommend first installing VOSS in VA Smalltalk and working > through the tutorial to get the feel of it; then single-step in the > debugger > through the essential functionality to see how it works, in particular > the > way messages sent to VORef proxies are forwarded to virtual objects > instantiated in the virtual space's VOCache after loading from disk. > > The public face of a virtual space is an instance of VOManager, which > knows > the file pathname etc, and which references an instance of > VOStorageManager, > which is wrapped in a mutual exclusion VOSMShell, so that only one > Smalltalk > process is allowed in at a time. > > Inside the VOStorageManager is an instance of VOCache (subclass of > VOOrderedDictionary, subclass of Dictionary), which contains all the > virtual > objects (in that virtual space) currently instantiated in the image. > > VORef has three instance variables 'voManager id association '. Any > message > sent to a VORef which is not understood by it (i.e. most of them, it's a > proxy) is forwarded to the VORef's VOManager, where it waits for > exclusive > access to the VOStorageManager. > > In there, it (the process) looks for that object's id in the VOCache > (if not > there it's loaded from disk), the object's fixed length (21 bytes) > descriptor record in the sparse index file myspace.vot is locked (against > other images on other machines), and its VOCacheAssociation is locked > into > the process's current VOTransaction (which contains a VOOrderedSet of > VORefs) against access by other processes in that image, and is > assigned to > the VORef's 'association' instance variable. > > The process then returns out of the VOStorageManager, out of the mutual > exclusion shell, and back in the context of the VOManager the > instantiated > virtual object (referenced by the locked VOCacheAssociation's 'value' > instvar) is told to perform the message, and whatever that returns is > returned to the original sender (if it returns self, then the VORef is > returned to the sender). > > I seem to have got rather deep rather quickly there; let me know which > bits > you want to know about first. > > Probably the most Pharo-specific part of the porting will be the new base > image Collection subclasses. The VOSS Btree collections > (VOLargeOrderedCollection and subclasses) are pretty well self-contained. > > I realise this morning that you weren't asking whether there was a non-VA > implementation, you just meant is it available in chunk format, rather > than > VA library (.dat) format - yes it's attached hereto. But nevertheless, I > strongly recommend having a working version to examine throughout the > porting. > > The current version of VAST is 8.6.1, and VOSS 3.150.14 will object to > that > when you try to run it, expecting VA 8.6. I've looked at the VA86 to > VA861 > migration notes, and as far as I can see it's only the version > checking code > (in VODEVUUU module) which needs to be tweaked. I'll do that and > upload to > voss.logicarts.com > > Regards, > John > > >

March 7, 2015

Re: [Pharo-users] Porting Voss to Pharo

by stepharo

I think that the author of voss should reply. Stef Le 6/3/15 23:07, Stephan Eggermont a Ã©crit : > On 06/03/15 16:16, stepharo wrote: >> Hi guys >> >> if some of you are interested to drive porting VOSS to Pharo, let me >> know >> John sent me the code and I can give it to you. >> There is a dual license >> - LGPL >> - commercial > > What does LGPL mean for VOSS? At FOSDEM I talked with Bradley Kuhn of > the FSF. It is something that has been on their to do list for a while > now. In the 'strict' interpretation it is as viral as GPL for smalltalk > code. > > Stephan > > > >

March 7, 2015

Re: [Pharo-users] Pharo References/Citations manager

by stepharo

Hi peter RMoD/citezen parses visits bib file entries I'm about to integrate in Pillar (waiting to discuss with Damien). In the past I created a simple document model (without syntax) in which I could output Xhtml and specific one for bib entries. I use it for my web site but I want to revisit everything to have static web system Pillar + mustache template => web site Pillar + mustache template + extension/citezen => static web site + citezen Once I arrive to this static version, I want to revisit Marina to see how we can build component with reef but for that version I need help and esteban :) Le 7/3/15 00:41, Peter UhnÃ¡k a Ã©crit : > Hi, > > I've seen somewhere recently something that resembled citations > manager, or maybe some DSL describing citations/references. > Unfortunately I came across it accidentally while looking for > something unrelated so I didn't bookmark it. > > Maybe it was related to Pillar? > > Anyone knows? > > Thanks, > Peter

March 7, 2015

Re: [Pharo-users] any smalltalkers in singapore next week for FOSSASIA?

by Martin BÃ¤hr

Excerpts from Pierce Ng's message of 2015-03-07 09:15:29 +0100: > > btw: i'll do a workshop about building a REST api in smalltalk at the > > conference. > Nice! I live in Singapore, but I'm travelling while the event is on, alas. darn, how long are you travelling? i am there from the 12th to the 17th... the contents of the workshop is pretty much what is in the video here http://societyserver.org/mbaehr/training/building-an-api-with-zinc-rest-in-… greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org secretary beijinglug.org mentor fossasia.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

March 7, 2015

Re: [Pharo-users] Pharo References/Citations manager

by phil＠highoctane.be

Citezen? Le 7 mars 2015 00:41, "Peter UhnÃ¡k" <i.uhnak(a)gmail.com> a Ã©crit : > Hi, > > I've seen somewhere recently something that resembled citations manager, > or maybe some DSL describing citations/references. Unfortunately I came > across it accidentally while looking for something unrelated so I didn't > bookmark it. > > Maybe it was related to Pillar? > > Anyone knows? > > Thanks, > Peter >

March 7, 2015

Re: [Pharo-users] any smalltalkers in singapore next week for FOSSASIA?

by Pierce Ng

On Fri, Mar 06, 2015 at 11:17:42AM +0100, Martin BÃ¤hr wrote: > btw: i'll do a workshop about building a REST api in smalltalk at the > conference. Nice! I live in Singapore, but I'm travelling while the event is on, alas. Pierce

March 7, 2015

Re: [Pharo-users] Reading an SQL db on OS X

by Pierce Ng

On Wed, Mar 04, 2015 at 05:18:57PM -0500, Alexandre Bergel wrote: > I would like to read a SQL .db file. The page > http://smalltalkhub.com/#!/~PharoExtras/NBSQLite3 mention how to do this on > Windows and Linux, but not on OSX. What should I do to read a SQL file on OS > X? I tried google, but it did not work. Do it the same way on OSX as on Windows and Linux. On OSX you need to supply a full path name to the DB file. This is due to weirdness in Pharo.app; search this list's archives for a recent discussion. I wrote NBSQLite3 on OSX and tested on Linux. I don't use Windows. Subsequently Torsten moved NBSQLite3 to STH. Seems Torsten uses Linux and Windows, so now we have the 3 main platforms covered. :-) You may also want to check out http://www.samadhiweb.com/NBSQLite3.html. Pierce

March 7, 2015

Re: [Pharo-users] Porting Voss to Pharo

by Pierce Ng

On Fri, Mar 06, 2015 at 11:07:44PM +0100, Stephan Eggermont wrote: > What does LGPL mean for VOSS? At FOSDEM I talked with Bradley Kuhn > of the FSF. It is something that has been on their to do list for a > while now. In the 'strict' interpretation it is as viral as GPL for smalltalk > code. A blast from the past, on Glorp's license: http://lists.squeakfoundation.org/pipermail/squeak-dev/2004-June/078620.html Says Glorp is LGPL(S), under which the "code is intended to be usable as a library, without the intention to restrict the license of the program that uses it." The new Glorp site doesn't talk about license though. The Common Lisp world also has had an LLGPL for a very long time now. http://www.cliko.net/LLGPL Pierce

March 7, 2015

Re: [Pharo-users] files.pharo.org now cached close to you

by Marcus Denker

> On 07 Mar 2015, at 04:47, Bernardo Ezequiel Contreras <vonbecmann(a)gmail.com> wrote: > > +1. it took 57 seconds to download an image!! > did you see a speedup from before? > On Fri, Mar 6, 2015 at 12:11 PM, Johan Fabry <jfabry(a)dcc.uchile.cl> wrote: >> >> Thatâs cool! Letâs hope it will help in downloading the latest image, sometimes itâs annoyingly slow here. >> >>> On Mar 6, 2015, at 05:58, Marcus Denker <marcus.denker(a)inria.fr> wrote: >>> >>> Hi, >>> >>> Yesterday we have set up a caching infrastructure for http://files.pharo.org >>> >>> This means that files that are requested multiple times from your location will >>> be served from a server close to you. >>> >>> There are e.g. servers in Chile, Argentine, Brazil, Dallas, LA, Franfurt, Paris, Hongkong, Sydneyâ¦. >>> >>> This will cost us around $1-2 per day. This is not a lot but more that someone (e.g. me) could spend >>> from their own pocket. >>> >>> As such, this is only possible due to the funds of the Pharo Association: >>> >>> http://association.pharo.org >>> >>> Thanks a lot to all the members! >>> If you like this and want to support things like this, please consider joining the association! >>> >>> fMarcus >>> >> >> >> >> ---> Save our in-boxes! http://emailcharter.org <--- >> >> Johan Fabry - http://pleiad.cl/~jfabry >> PLEIAD lab - Computer Science Department (DCC) - University of Chile >> >> > > > > -- > Bernardo E.C. > > Sent from a cheap desktop computer in South America. >

March 7, 2015

Re: [Pharo-users] files.pharo.org now cached close to you

by Bernardo Ezequiel Contreras

+1. it took 57 seconds to download an image!! On Fri, Mar 6, 2015 at 12:11 PM, Johan Fabry <jfabry(a)dcc.uchile.cl> wrote: > > Thatâs cool! Letâs hope it will help in downloading the latest image, sometimes itâs annoyingly slow here. > >> On Mar 6, 2015, at 05:58, Marcus Denker <marcus.denker(a)inria.fr> wrote: >> >> Hi, >> >> Yesterday we have set up a caching infrastructure for http://files.pharo.org >> >> This means that files that are requested multiple times from your location will >> be served from a server close to you. >> >> There are e.g. servers in Chile, Argentine, Brazil, Dallas, LA, Franfurt, Paris, Hongkong, Sydneyâ¦. >> >> This will cost us around $1-2 per day. This is not a lot but more that someone (e.g. me) could spend >> from their own pocket. >> >> As such, this is only possible due to the funds of the Pharo Association: >> >> http://association.pharo.org >> >> Thanks a lot to all the members! >> If you like this and want to support things like this, please consider joining the association! >> >> fMarcus >> > > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD lab - Computer Science Department (DCC) - University of Chile > > -- Bernardo E.C. Sent from a cheap desktop computer in South America.

March 7, 2015