August 2013 - Pharo-dev - lists.pharo.org

about on:do: and weak

by StÃ©phane Ducasse

Hi guys we are looking at the memory leak problems with igor and here are the conclusions: we are renaming on:do: for shortcut into onKey:do: so that we can see a bit more (normally easy) Now the complex part. on:do: should not be used in weak announcement. because the block holds a context that prevents the garbage collection to reclaim the object. For blocks implicitly the receiver of the message containing the block is held strongly. Now the block cannot We are adding a message in the on:do: implementation and we will have a look at the complete image. on:do: should only be used for strong references. The problem is that for UI we need weak. So we are looking at users for now. Stef

Aug. 4, 2013

Re: [Pharo-dev] about on:do: -> onKey:do:

by Tudor Girba

Great. Doru On Sun, Aug 4, 2013 at 3:04 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>wrote: > Hi ben and others > > we are introducing onKey:do: for bindings so that we can control the > complexity and the registration > of announcements. So if you can I have a look it would be good. > > https://pharo.fogbugz.com/default.asp?11299 > > Stef > -- www.tudorgirba.com "Every thing has its own flow"

Aug. 4, 2013

about on:do: -> onKey:do:

by StÃ©phane Ducasse

Hi ben and others we are introducing onKey:do: for bindings so that we can control the complexity and the registration of announcements. So if you can I have a look it would be good. https://pharo.fogbugz.com/default.asp?11299 Stef

Aug. 4, 2013

Re: [Pharo-dev] New version of PharoSound

by kilon

Its still all your fault :D I did not imply that you have to do anything. I only asked that a link to the library is offered and maybe some general information to trigger more interest. Thank you for the link will take a look. :) StÃ©phane Ducasse wrote > good idea I will do that in the future > > http://smalltalkhub.com/#!/~PharoExtras > > then the configurationOfPharoSound is published in > ss3.gemtalk.com/MetaRepoForPharo20 > > I looked around and that are some text in > > http://stephane.ducasse.free.fr/FreeBooks/GuzdialBookDrafts/Multimedia-ch7.… > > If somebody would start to extract and work on a simple doc it would be > great. > > > About the doc, did you realise that we are writing docs while often there > were not a single documentation > even though people got payed when developing squeak. > So we are doing our best. > > Did you realise that we write even document on things we do not know? :) > > > Stef > > > >> May I ask for a small favor ? >> >> That you guys each time you refer to a pharo library you also link its >> project page that hopefully contains also its docs. So we can all follow >> you >> easily. I know google is my friend but I do think its more convenient >> and a better motivation for people to try new libraries. >> >> Thanks :) >> >> PS: Thats what google found for me >> http://www.squeaksource.com/@_2hZJ-jfU7KYRTE3/wk_ym4n7. Does not seem to >> have any docs :( >> >> >> >> -- >> View this message in context: >> http://forum.world.st/New-version-of-PharoSound-tp4702031p4702033.html >> Sent from the Pharo Smalltalk Developers mailing list archive at >> Nabble.com. >> -- View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702031p4702050.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Aug. 4, 2013

Re: [Pharo-dev] New version of PharoSound

by StÃ©phane Ducasse

>> good idea I will do that in the future >> >> http://smalltalkhub.com/#!/~PharoExtras >> >> then the configurationOfPharoSound is published in ss3.gemtalk.com/MetaRepoForPharo20 >> >> I looked around and that are some text in >> http://stephane.ducasse.free.fr/FreeBooks/GuzdialBookDrafts/Multimedia-ch7.… >> >> If somebody would start to extract and work on a simple doc it would be great. >> >> >> About the doc, did you realise that we are writing docs while often there were not a single documentation >> even though people got payed when developing squeak. >> So we are doing our best. >> >> Did you realise that we write even document on things we do not know? :) > > Yes, StÃ©phane, most people completely underestimate how much effort documentation is, both in code as in separate nice documents. I for one, appreciate your work on that front, a lot. The book style documentation is extremely important. > > But I think what he means is something like this: > > http://www.smalltalkhub.com/#!/~SvenVanCaekenberghe/STON > > one page as a reference, where you can get the code and read some introduction and basic documentation. > > Your work on the meta package documentation will certainly help, but it are still the developers who have to write it. 100% in sync with you :) Stef

Aug. 4, 2013

Re: [Pharo-dev] New version of PharoSound

by Sven Van Caekenberghe

On 04 Aug 2013, at 09:47, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > good idea I will do that in the future > > http://smalltalkhub.com/#!/~PharoExtras > > then the configurationOfPharoSound is published in ss3.gemtalk.com/MetaRepoForPharo20 > > I looked around and that are some text in > http://stephane.ducasse.free.fr/FreeBooks/GuzdialBookDrafts/Multimedia-ch7.… > > If somebody would start to extract and work on a simple doc it would be great. > > > About the doc, did you realise that we are writing docs while often there were not a single documentation > even though people got payed when developing squeak. > So we are doing our best. > > Did you realise that we write even document on things we do not know? :) Yes, StÃ©phane, most people completely underestimate how much effort documentation is, both in code as in separate nice documents. I for one, appreciate your work on that front, a lot. The book style documentation is extremely important. But I think what he means is something like this: http://www.smalltalkhub.com/#!/~SvenVanCaekenberghe/STON one page as a reference, where you can get the code and read some introduction and basic documentation. Your work on the meta package documentation will certainly help, but it are still the developers who have to write it. Sven > Stef > > > >> May I ask for a small favor ? >> >> That you guys each time you refer to a pharo library you also link its >> project page that hopefully contains also its docs. So we can all follow you >> easily. I know google is my friend but I do think its more convenient >> and a better motivation for people to try new libraries. >> >> Thanks :) >> >> PS: Thats what google found for me >> http://www.squeaksource.com/@_2hZJ-jfU7KYRTE3/wk_ym4n7. Does not seem to >> have any docs :( >> >> >> >> -- >> View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702031p4702033.html >> Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. >> > >

Aug. 4, 2013

Re: [Pharo-dev] New version of PharoSound

by StÃ©phane Ducasse

good idea I will do that in the future http://smalltalkhub.com/#!/~PharoExtras then the configurationOfPharoSound is published in ss3.gemtalk.com/MetaRepoForPharo20 I looked around and that are some text in http://stephane.ducasse.free.fr/FreeBooks/GuzdialBookDrafts/Multimedia-ch7.… If somebody would start to extract and work on a simple doc it would be great. About the doc, did you realise that we are writing docs while often there were not a single documentation even though people got payed when developing squeak. So we are doing our best. Did you realise that we write even document on things we do not know? :) Stef > May I ask for a small favor ? > > That you guys each time you refer to a pharo library you also link its > project page that hopefully contains also its docs. So we can all follow you > easily. I know google is my friend but I do think its more convenient > and a better motivation for people to try new libraries. > > Thanks :) > > PS: Thats what google found for me > http://www.squeaksource.com/@_2hZJ-jfU7KYRTE3/wk_ym4n7. Does not seem to > have any docs :( > > > > -- > View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702031p4702033.html > Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. >

Aug. 4, 2013

DigitalSignatureAlgorithm depends on Sound

by StÃ©phane Ducasse

Hi I discovered that UUIDGenerator and DigitalSignatureAlgorithm used in some encrypting algo are dependent of Sound. BaseSoundSystem>>:randomBitsFromSoundInput: bitCount "Answer a positive integer with the given number of random bits of 'noise' from a sound input source. Typically, one would use a microphone or line input as the sound source, although many sound cards have enough thermal noise that you get random low-order sample bits even with no microphone connected. Only the least signficant bit of the samples is used. Since not all sound cards support 16-bits of sample resolution, we use the lowest bit that changes." "(1 to: 10) collect: [:i | BaseSoundSystem new randomBitsFromSoundInput: 512]" | recorder buf mid samples bitMask randomBits bit | "collect some sound data" recorder := SoundRecorder new clearRecordedSound. recorder resumeRecording. (Delay forSeconds: 1) wait. recorder stopRecording. buf := recorder condensedSamples. "grab bitCount samples from the middle" mid := buf monoSampleCount // 2. samples := buf copyFrom: mid to: mid + bitCount - 1. "find the least significant bit that varies" bitMask := 1. [bitMask < 16r10000 and: [(samples collect: [:s | s bitAnd: bitMask]) asSet size < 2]] whileTrue: [bitMask := bitMask bitShift: 1]. bitMask = 16r10000 ifTrue: [^ self error: 'sound samples do not vary']. "pack the random bits into a positive integer" randomBits := 0. 1 to: samples size do: [:i | bit := ((samples at: i) bitAnd: bitMask) = 0 ifTrue: [0] ifFalse: [1]. randomBits := (randomBits bitShift: 1) + bit]. ^ randomBits Now I was thinking that when the sound package is not loaded we could have a random number generator. Stef

Aug. 3, 2013

Re: [Pharo-dev] Discard option while editing code seems to be broken or strange

by Camille Teruel

Yes I have this bug times to times but no mean to reproduce it. On 3 aoÃ»t 2013, at 21:27, StÃ©phane Ducasse wrote: > When I modify a method and click on somewhere else I get a pop up and pressing discard does not work but pops up another. > Now I'm trying to reproduce the problem to describe it clearly and I cannot anymore but I'm sure I did get this strange behavior. > > Stef

Aug. 3, 2013

Re: [Pharo-dev] New version of PharoSound

by kilon

May I ask for a small favor ? That you guys each time you refer to a pharo library you also link its project page that hopefully contains also its docs. So we can all follow you easily. I know google is my friend but I do think its more convenient and a better motivation for people to try new libraries. Thanks :) PS: Thats what google found for me http://www.squeaksource.com/@_2hZJ-jfU7KYRTE3/wk_ym4n7. Does not seem to have any docs :( -- View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702031p4702033.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Aug. 3, 2013