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pharo-users@lists.pharo.org

October 2012

46 participants
151 messages

Polling sockets

by Santiago Bragagnolo

Hi guys, theres something like the select or poll C functions in order to wait for incoming-data from a set of sockets? I searched at the list and in the pharo by example book without any success and i didn't find a method named poll / select ( select in terms of sockets ) in the image. Maybe i need to spawn a process per socket? Thanks!

Oct. 5, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Igor Stasenko

guys, if you want to get more concrete answers, please ask on vm-dev mailing list. On 4 October 2012 10:53, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > On 04 Oct 2012, at 10:29, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > >>> Does the vm create a detailed log? I just get the segmentation fault error output... As I told, the AC100 has only 512MB of RAM. But as I read in the vm documentation, the vm tries to allocate 1GB or 75% of the available RAMâ¦ >> >> I really do not know but I do not think that Pharo is not working in 512 mb >> It would be a problem because we ask our servers for our web site to be 512 mb ram. So I doubt that this limit is the problem. >> >> Stef > > Stoch Pharo is only using 50Mb on a server, provisioning about 100Mb per vm/image instance would be enough (depending on usage of course). > > But on a specific platform, a vm might try to allocate or reserve more. It all depends on the port of the vm. > > -- > Sven Van Caekenberghe > http://stfx.eu > Smalltalk is the Red Pill > > -- Best regards, Igor Stasenko.

Oct. 4, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Sven Van Caekenberghe

On 04 Oct 2012, at 10:29, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> Does the vm create a detailed log? I just get the segmentation fault error output... As I told, the AC100 has only 512MB of RAM. But as I read in the vm documentation, the vm tries to allocate 1GB or 75% of the available RAMâ¦ > > I really do not know but I do not think that Pharo is not working in 512 mb > It would be a problem because we ask our servers for our web site to be 512 mb ram. So I doubt that this limit is the problem. > > Stef Stoch Pharo is only using 50Mb on a server, provisioning about 100Mb per vm/image instance would be enough (depending on usage of course). But on a specific platform, a vm might try to allocate or reserve more. It all depends on the port of the vm. -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

Oct. 4, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

> Does the vm create a detailed log? I just get the segmentation fault error output... As I told, the AC100 has only 512MB of RAM. But as I read in the vm documentation, the vm tries to allocate 1GB or 75% of the available RAMâ¦ I really do not know but I do not think that Pharo is not working in 512 mb It would be a problem because we ask our servers for our web site to be 512 mb ram. So I doubt that this limit is the problem. Stef

Oct. 4, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Marc Hanisch

Oct. 2, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

This is strange because I do not see why it would crash. Do you have a log file of the crash? Stef On Oct 2, 2012, at 8:45 PM, Marc Hanisch wrote: > Hello, > > It's the Ubuntu for ARM build located here: https://launchpad.net/ubuntu/precise/armhf/squeak-vm/1:4.4.7.2357-1.1ubuntu1 > > But it still crashes when running a pharo image. With the delivered squeak-image, it does not crash :-( But I don't want to use squeak ;-) > > Best regards, > Marc > > > > -- â Esperanto - Lingvo internacia â http://www.esperanto.de â http://e-gikoj.com â > Am 02.10.2012 20:26 schrieb Denis Kudriashov <dionisiydk(a)gmail.com>: > Hello > > 2012/10/1 Marc Hanisch <marc.hanisch(a)googlemail.com> > Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... > > Where you get it? Can you share?

Oct. 2, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Marc Hanisch

Oct. 2, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Denis Kudriashov

Hello 2012/10/1 Marc Hanisch <marc.hanisch(a)googlemail.com> > Should Pharo run with the squeak-vm? An ARM build for the squeak-vm > exists... > Where you get it? Can you share?

Oct. 2, 2012

Re: [Pharo-users] Bag of Permutations

by Paul DeBruicker

I don't know why you'd need to make a copy inside the block but this works: | m p | m := #(1 2 3). p := Bag new. m permutationsDo: [:each | Transcript show: each ; cr. p add: each copy. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] The Transcript shows: #(1 2 3) a Bag(#(1 2 3)) #(1 3 2) a Bag(#(1 2 3) #(1 3 2)) #(2 1 3) a Bag(#(1 2 3) #(1 3 2) #(2 1 3)) #(2 3 1) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3)) #(3 2 1) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1)) #(3 1 2) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1) #(3 1 2)) ------ #(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1) #(3 1 2) On 10/01/2012 10:14 AM, Ginny Hendry wrote: > I would like to get a collection of permutations of another > collection but I can't make it work. > > This ends up incorrectly with the same element many times in Bag p: > > | m p | > m := #(1 2 3). > p := Bag new. > m permutationsDo: [:each | > Transcript show: each ; cr. > p add: each. > Transcript show: p ; cr. > ]. > Transcript show: '------'; cr. > p do: [:each| Transcript show: each; cr] > > But this very similar code ends up correctly with different > elements in Bag p: > > | m p | > m := #(1 2 3). > p := Bag new. > m do: [:each | > Transcript show: each ; cr. > p add: each. > Transcript show: p ; cr. > ]. > Transcript show: '------'; cr. > p do: [:each| Transcript show: each; cr] > > Any ideas about what am I doing wrong? How can I get a collection of permutations? > > Working in Pharo 1.4 one-click for Mac OSX. > > Thanks. > > -Ginny >

Oct. 1, 2012

Bag of Permutations

by Ginny Hendry

I would like to get a collection of permutations of another collection but I can't make it work. This ends up incorrectly with the same element many times in Bag p: | m p | m := #(1 2 3). p := Bag new. m permutationsDo: [:each | Transcript show: each ; cr. p add: each. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] But this very similar code ends up correctly with different elements in Bag p: | m p | m := #(1 2 3). p := Bag new. m do: [:each | Transcript show: each ; cr. p add: each. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] Any ideas about what am I doing wrong? How can I get a collection of permutations? Working in Pharo 1.4 one-click for Mac OSX. Thanks. -Ginny

Oct. 1, 2012

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