April 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] new Cog VMs uploaded

by Eliot Miranda

Hi All, this is because of carelessness in the trunk platforms/unix/plugins/LocalePlugin/sqUnixLocale.c which uses strcpy to copy C strings from the locale subsystem into Smalltalk strings. strcpy copies the trailing null, which will overwrite the first byte of the following object. This just happens not to kill the standard VM because current code always uses these functions on new strings. But Cog currently checks for attempts to overwrite objects and hence it catches these attemptys and aborts, with an error message. Hilaire, Phillipe, you should have seen and reported the "last object overwritten" report form the VM and if so we would have debugged this a lot sooner. Error messages are there to be read. Ian, David, I recommend that you fold URL: http://www.squeakvm.org/svn/squeak/branches/Cog/platforms/unix/plugins/Loca… Revision: 2382 back into trunk. I've replaced all uses of strcpy in platforms/unix/plugins/LocalePlugin/sqUnixLocale.c with the following: /* For Cog do *not* copy the trailing null since the VM checks for attempts to * overwrite the end of an object, and copying the trailing null into a string * does precisely this. */ #define safestrcpy(str,source) do { \ char *src = (source); \ int len = strlen(src); \ strncpy(str,src,len); \ } while (0) On Wed, Apr 27, 2011 at 8:18 AM, Philippe Marschall <kustos(a)gmx.net> wrote: > On 26.04.2011 23:01, Eliot Miranda wrote: > > ...to http://www.mirandabanda.org/files/Cog/VM/VM.r2379/. These fix > > shallowCopy and copyFrom: for contexts and (I hope) fix the linux Locale > > plugin. > > The following still crashes my vm: > > (Locale localeID: (LocaleID isoLanguage: 'de' isoCountry: 'CH')) > primShortDateFormat > > Cheers > Philippe > > >

April 27, 2011

Re: [Pharo-project] pier...

by Lukas Renggli

Done. Thanks for pointing out. Lukas On 27 April 2011 19:48, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > Hi All, > Â Â Â can someone who knows Pier please add it > toÂ http://en.wikipedia.org/wiki/List_of_content_management_systems? > TIA, > Eliot -- Lukas Renggli www.lukas-renggli.ch

April 27, 2011

[Pharo-project] pier...

by Eliot Miranda

Hi All, can someone who knows Pier please add it to http://en.wikipedia.org/wiki/List_of_content_management_systems? TIA, Eliot

April 27, 2011

Re: [Pharo-project] [ANN] PharoDev-1.3-13173

by Sven Van Caekenberghe

On 27 Apr 2011, at 19:19, Philippe Marschall wrote: > and found a bug in Zinc :-P Name: Zinc-HTTP-SvenVanCaekenberghe.147 Author: SvenVanCaekenberghe Time: 27 April 2011, 7:42:51 pm UUID: b2b69990-95ff-40bc-9ff0-6cb11dc96a24 Ancestors: Zinc-HTTP-SvenVanCaekenberghe.146 changed ZnServer class>>#initialize not to do a Smalltalk #addToStartUpList:after: but just use the plain #addToStartUpList: (we only depend on networking and multi-processing but those will probably be OK) Thx, Philippe & Mariano! Sven PS: Hopefully, SS makes this a persistent change ;-)

April 27, 2011

Re: [Pharo-project] [ANN] PharoDev-1.3-13173

by Marcus Denker

> > general impressions: > - some way to clear the Transcript would be nice (other than Transcript > clear) eg. a Button > - some way to select stuff in the transcript would be nice Transcript will be fixed... > - what happened to the backport button in Monticello? > No idea. > I found two undeclareds: > - ZnServer class >> #initialize references AutoStart > - OBDefinition >> #doItReceiver references FakeClassPool > > -> some small migration guide would be nice, maybe even a Lint rule that > checks for removed globals ;-) > Yes.. now I have no time to do this. Who wants? Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

April 27, 2011

Re: [Pharo-project] about the transcript: Model vs Morph

by StÃ©phane Ducasse

Hi fernando, it should work the same way as the old transcript to be accepted. So give a try if you can. I cannot. :) And note that I have no problem to throw away my threadsafe transcript but for a better one. :) Stef On Apr 27, 2011, at 12:49 PM, Fernando Olivero wrote: > Hi, I wanted to better understand the issues raised agains the (new) Transcript. > > Many people are arguing against the current Morph widget displaying > the Transcript, complaining that it is read only. The fix is simple, > provide a new implementation of TranscriptMorph , which provides cut & > paste, scrolling , and the other functionality previously there. > > This is the announcement on the benefits of the new transcript made by Juan. > > New Transcript > Fast (Calls return quickly) > Fast (Updates are immediate) > Thread safe > Can log to file in addition to Display > Display output is optional (for headless images) > Can work on a bare bones image (Doesn't need UI, dependency, events, > processes) > Optional morphic window for seamless integration in Morphic > UI framework agnostic. Can be used to debug Morphic, even with the > morphic window open, without crashing the image! > No longer a text editor. Display is read only. > > So according to the mails in the list, Pharo disagrees on the last > issue, but this means only improving the TranscriptMorph. > I dont have time to work on it, but will next week. > > Are people actually complaining against the (new) Transcript model? or > just the TranscriptMorph missing features ? > > I recall Igor, wanting the Transcript to be polymorphic with the > protocol of a WriteStream. Which is already there. > > Thanks, > Fernando >

April 27, 2011

Re: [Pharo-project] SqueakSource

by StÃ©phane Ducasse

argh this is bad. Agony of squeaksource. May be could set up a mirror and use a gofer script to publish in the two systematically. Now I do not know the requirement for SS3 and no time to check. So. Stef > I have trouble with SqueakSource. > > I can live with the fact that it goes down regulary, but now I seem to be losing code, and I can't fix it. > > I am missing 3 versions: > > Name: Zinc-HTTP-SvenVanCaekenberghe.145 > Author: SvenVanCaekenberghe > Time: 26 April 2011, 7:01:32 pm > UUID: f9f0831d-5ffa-4a5c-a8ec-b276c9babc35 > Ancestors: Zinc-HTTP-SvenVanCaekenberghe.144 > > Name: Zinc-HTTP-SvenVanCaekenberghe.144 > Author: SvenVanCaekenberghe > Time: 26 April 2011, 1:44:01 pm > UUID: 439b923a-997e-4f51-9b7d-90896f8dd97f > Ancestors: Zinc-HTTP-SvenVanCaekenberghe.143 > > Name: Zinc-HTTP-SvenVanCaekenberghe.143 > Author: SvenVanCaekenberghe > Time: 26 April 2011, 1:24:30 pm > UUID: 08a56e5b-3270-4231-9568-4e5beffb58ae > Ancestors: Zinc-HTTP-SvenVanCaekenberghe.142 > > I manually tried to copy them from my local package-cache to SS using the Copy button, > that seemed to have gone OK, but they still don't appear on SS. > > Anyone any idea ? > > Thx, > > Sven > >

April 27, 2011

Re: [Pharo-project] new Cog VMs uploaded

by Eliot Miranda

can you post a stack trace from gdb? Also, what linux system and what image are you using? TIA Eliot On Wed, Apr 27, 2011 at 8:18 AM, Philippe Marschall <kustos(a)gmx.net> wrote: > On 26.04.2011 23:01, Eliot Miranda wrote: > > ...to http://www.mirandabanda.org/files/Cog/VM/VM.r2379/. These fix > > shallowCopy and copyFrom: for contexts and (I hope) fix the linux Locale > > plugin. > > The following still crashes my vm: > > (Locale localeID: (LocaleID isoLanguage: 'de' isoCountry: 'CH')) > primShortDateFormat > > Cheers > Philippe > > >

April 27, 2011

Re: [Pharo-project] squeaksource is down - a different perspective

by StÃ©phane Ducasse

>> squeaksource.com is down a lot. People get frustrated at times. > > Yes, and unfortunately it looks like people love to be frustrated. > > Otherwise people would give Tobias more feedback on SqueakSource3 (see [1]) which IMHO could overtake the job in the future and replace the > problematic image? I do not know. Do SS3 has a migration process? How easy is it to install on an old machine? Does gemstone run on a old mac g3? Should we install glass? I do not know. You see nothing looks simple when we want to do it. > Or is the outage a traffic problem and may > happen with SS3 too? > > Is the (daily?) restart the only option we have or is a migration > to a newer SS version possible? No idea. Do you know? > And yes - SmalltalkHub is on the way, but we still dont know > how well it fits our needs/works/scales. Yes, this sounds negative but > I think it can replace Squeaksource only in a long term... we will see and learn. > Bye > T. > > > [1] http://lists.gforge.inria.fr/pipermail/pharo-project/2011-April/047780.html > -- > NEU: FreePhone - kostenlos mobil telefonieren und surfen! > Jetzt informieren: http://www.gmx.net/de/go/freephone >

April 27, 2011

Re: [Pharo-project] new Cog VMs uploaded

by Eliot Miranda

Philippe, can you please profile before and after? This could very well be to do with the additional cost of shallowCopy for contexts, but it is inevitable that a correct implementation is going to be more expensive than the simple block-copy. The new implementation can be optimized, but we need to profile first to be sure we're tilting at the relevant windmill. AdvThanksance Eliot On Wed, Apr 27, 2011 at 9:40 AM, Philippe Marschall <kustos(a)gmx.net> wrote: > On 26.04.2011 23:01, Eliot Miranda wrote: > > ...to http://www.mirandabanda.org/files/Cog/VM/VM.r2379/. These fix > > shallowCopy and copyFrom: for contexts and (I hope) fix the linux Locale > > plugin. > > I'm seeing quite a drastic performance degradation in the last two Cog > releases for Seaside. r2361 and r2370 would yield about 4300 to 4400 > "points" for /tests/functional/WAPerformanceFunctionalTest. r2378 and > r2380 are down to about 2600 to 2700. That's almost a third slower. > > Cheers > Philippe > > >

April 27, 2011