November 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] TimeProfiler and primitives

by Marcus Denker

On Nov 10, 2012, at 1:01 PM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > > On Sat, Nov 10, 2012 at 3:46 PM, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > Do you have the same issue if you use the Qwaq profiler here: > > Www.squeaksource.com/SystemProfilerPharo.html > > > That was what I was looking for!!! > Indeed, much better results :) Thanks Paul. > Now I wonder, can we merge the changes from this SystemProfiler into the standard TimeProfiler? > I would love to have only (correcy) onw. > Maybe you can help with this task? ;) > Make sure to check the license first.. everything Qwaq is GPL, which is quite a strange license in the context of Smalltalk... Marcus -- Marcus Denker -- http://marcusdenker.de

Nov. 10, 2012

Re: [Pharo-project] TimeProfiler and primitives

by Mariano Martinez Peck

On Sat, Nov 10, 2012 at 3:46 PM, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > Do you have the same issue if you use the Qwaq profiler here: > > Www.squeaksource.com/SystemProfilerPharo.html > > That was what I was looking for!!! Indeed, much better results :) Thanks Paul. Now I wonder, can we merge the changes from this SystemProfiler into the standard TimeProfiler? I would love to have only (correcy) onw. Maybe you can help with this task? ;) > ? > > > > -- > View this message in context: > http://forum.world.st/TimeProfiler-and-primitives-tp4654714p4654715.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > > -- Mariano http://marianopeck.wordpress.com

Nov. 10, 2012

[Pharo-project] [update 2.0] #20388

by Marcus Denker

20388 ----- Issue 6942: Integer >> asArray, asByteArray, asByteArrayOfSize in usuitable package http://code.google.com/p/pharo/issues/detail?id=6942 Issue 6937: RGMonticelloTest in unsuitable package http://code.google.com/p/pharo/issues/detail?id=6937 Issue 6940: BehaviorTest >> testComposedBy dependent on Morphic http://code.google.com/p/pharo/issues/detail?id=6940 Diff information: http://ss3.gemstone.com/ss/Pharo20/System-Hashing-MarcusDenker.20.diff http://ss3.gemstone.com/ss/Pharo20/Ring-Tests-Monticello-MarcusDenker.3.diff http://ss3.gemstone.com/ss/Pharo20/Ring-Tests-Kernel-MarcusDenker.39.diff http://ss3.gemstone.com/ss/Pharo20/KernelTests-MarcusDenker.451.diff http://ss3.gemstone.com/ss/Pharo20/Kernel-MarcusDenker.1238.diff -- Marcus Denker -- http://marcusdenker.de

Nov. 10, 2012

Re: [Pharo-project] TimeProfiler and primitives

by Paul DeBruicker

Do you have the same issue if you use the Qwaq profiler here: Www.squeaksource.com/SystemProfilerPharo.html ? -- View this message in context: http://forum.world.st/TimeProfiler-and-primitives-tp4654714p4654715.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

Nov. 10, 2012

[Pharo-project] TimeProfiler and primitives

by Mariano Martinez Peck

Hi guys. I remember some improvements made to TimeProfiler regarding primitives. I am profiling something which does a lot of primitive calls, and the TimeProfiler is quite dumb. It shows almost everything as #finalizationProcess but I know that the time is not actually spent there. I remember someone that fixed this (maybe Eliot telling me that on Teleplace?). Anyway, any help is appreciated. Thanks, -- Mariano http://marianopeck.wordpress.com

Nov. 10, 2012

Re: [Pharo-project] [NativeBoost] pass an array of args to external function

by Ben Coman

Igor Stasenko wrote: > On 8 November 2012 17:13, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > >> On 08 Nov 2012, at 20:29, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> >> >>> I told you several time, do you think that a guy do not understand what is a pointer because he does not know how to write it in C? >>> Give a chance to professionals to learn. We are not talking about explaining what is a pointer, but explaining the >>> potential problems and challenges >>> >>> >> But once you start using C pointers, you can very easily do something wrong. It might be a very subtle error and it might not manifest itself immediately, alas there won't be a Debugger popping up, just a coredump. >> >> > > yes, that what i meant. and without some practice in C, you are really > lacking understanding that > pointers is actually a mine field: one day you can walk safely, > another day be blown up at first step. > > > With the proviso that I haven't programmed in C for a long time, and that the publication date is 1994, I would recommend the book "Expert C Programming: Deep C Secrets" [2] for intermediate level programmers to learn more about the intricacies of pointers versus arrays, automatic type promotion, deciphering declarations - which are some of the things that I guess are particularly important for interfacing between languages. One great thing is that the book is _very_ readable, with humorous anecdotes scattered amongst the technical material. I have put together a couple of sample pages [2] for review. I am unable to tell how dated some of the material is, so I would be happy to donate a copy as a community contribution*, which might be posted between interested parties. Kind of a community library that helps people communicate at a common level. If it helps grow the number of people working at that level interfacing with external libraries, then ultimately that benefits me also. *Unless someone can recommend another book, since there must be many more good ones since then. [1] http://www.amazon.com/Expert-Programming-Peter-van-Linden/product-reviews/0… [2] http://files.openinworld.com/misc/ExpertCProgramming-Sample.pdf cheers -ben

Nov. 10, 2012

[Pharo-project] Pharo on Android questions

by laurent laffont

Hi, I'm happy because I've been able to put my Pharo MPD client on Android to control my Raspberry Pi sound system :) - photo: http://twitter.yfrog.com/obnq3xmj - code: http://smalltalkhub.com/#!/~LaurentLaffont/MPD Thanks a lot for this wonderful documentation: http://code.google.com/p/squeakvm-tablet/wiki/JenkinsBuilds , it feels great to start something in Pharo that works on the first try just reading the doc :) Now the questions: - the MPD client is doing lot of network operations & parsing: fetch data from MPD server, Spotify, parse JSON responses, .... It feels rather slow on the phone. What is the easiest way to measure performance of the image running on Android and detect bottlenecks ? - I remember there was a lot of discussions about remote tools some months ago. I been busy since then, is there news on this side ? - it seems it's not possible to display the app in portrait, only landscape, no automatic rotation. Confirm ? - is there a Morphic theme available that matches Android look & feel ? - is it possible to control the Menu and Back hardware buttons ? Cheers, Laurent

Nov. 10, 2012

Re: [Pharo-project] [Pharo-consortium] [Pharo-users] Pharo consortium agreement

by StÃ©phane Ducasse

>> > i doing it.. but too slow. > i need a socket in head to copy data on flash :) the best way is one at a time and doing a tutorial with us like the last time and I generate slides then we turn slides into text. Writing 40 slides in one hour is a good rate :) Stef > > -- > Best regards, > Igor Stasenko.

Nov. 10, 2012

Re: [Pharo-project] [NativeBoost] pass an array of args to external function

by StÃ©phane Ducasse

On Nov 10, 2012, at 1:02 AM, Igor Stasenko wrote: > On 9 November 2012 16:18, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> Igor >> I think that the approach of camillo is the right one. >> Examples, examples, examples and a bit more of working examples. >> > I agree. > > > P.S. Sorry guys it was a tough day for me. Sleepless night + sick + > presentation.. Ouch rest!!! enjoy the sun here it is not sunny. Stef > > >> Stef > > -- > Best regards, > Igor Stasenko. >

Nov. 10, 2012

Re: [Pharo-project] NB Capabilities

by StÃ©phane Ducasse

Jimmie did you look at JavaConnect? This is on our roadmap for Moose in December January. So that we can connect better to Java. Stef On Nov 10, 2012, at 3:40 AM, Jimmie Houchin wrote: > On 11/9/2012 7:22 PM, Igor Stasenko wrote: >> On 9 November 2012 12:19, Jimmie Houchin <jlhouchin(a)gmail.com> wrote: >>> The COM API is deprecated and no longer supported. Only the C++ API is what >>> is available for use from Pharo. >>> >>> >>> On 11/8/2012 11:31 PM, Igor Stasenko wrote: >>> >>> On 8 November 2012 23:25, Jimmie Houchin <jlhouchin(a)gmail.com> wrote: >>> >>> On a second look at the API's documentation, the DLL is C++ not C. I don't >>> know, but that might have been evident by the requirement of implementing >>> interfaces. >>> >>> well, with C++ it is a bit worse than C: because C++ compilers use >>> name mangling for the function names. >>> Means that, if you will look for exported function 'abc()', you will >>> probably find it under different name, like >>> abc@nby_xrt >>> >>> >>> How does one go about discovering these names? >>> >> This is best what i found, read to end: >> >> https://www.ruby-forum.com/topic/173158 >>> apart from that, once you figure the exact correct name, you can go >>> and call that function. >>> >>> Things is a bit different if the exported function is a member of class. >>> >>> So, what i can say.. you can try and see if it rolls (or rocks).. and >>> if it not, then the best option would be to implement own wrapper >>> library (but this time in C). And then use that library from pharo. >>> >>> >>> Ok, then this is the tricky part because I have a lot of C++ classes which >>> are interfaces to be implemented and instances of those classes to be passed >>> into other instances of other classes in the DLL. >>> >>> An example from the documentation. >>> ''' >>> An instance of the class implementing IO2GSessionStatus interface must be >>> subscribed to the session object before calling IO2GSession::login method. >>> It is accomplished by calling IO2GSession::subscribeSessionStatus method. >>> For example, ... >>> ''' >>> >>> As it stands my options are to learn Clojure (which I am already in progress >>> of doing) in order to access the API via Java. Or to learn C/C++ and NB to >>> access the API from Pharo. >>> >> googling didn't gave me any examples how Clojure deals with C++... >> have a link? >> i suspect it is like others, generating wrapper C code to call C++ code. > > Clojure does not access the C++ code. It would access the Java library in its .jar file. It has native access. The API is offered in three forms, Java, .NET and C++. > > > > Jimmie >

Nov. 10, 2012