July 2014 - Pharo-dev - lists.pharo.org

[pharo-project/pharo-core] a502f1: 40077

by GitHub

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: a502f1a68d4be032b23a04a850f8fe2a7dfd9729 https://github.com/pharo-project/pharo-core/commit/a502f1a68d4be032b23a04a8… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-07-09 (Wed, 09 Jul 2014) Changed paths: R Morphic-Base.package/CachingMorph.class/README.md R Morphic-Base.package/CachingMorph.class/definition.st R Morphic-Base.package/CachingMorph.class/instance/as yet unclassified/updateCacheCanvas_.st R Morphic-Base.package/CachingMorph.class/instance/caching/releaseCachedState.st R Morphic-Base.package/CachingMorph.class/instance/change reporting/invalidRect_from_.st R Morphic-Base.package/CachingMorph.class/instance/drawing/drawOn_.st R Morphic-Base.package/CachingMorph.class/instance/drawing/fullDrawOn_.st R Morphic-Base.package/CachingMorph.class/instance/drawing/imageForm.st R Morphic-Base.package/CachingMorph.class/instance/initialization/defaultColor.st R Morphic-Base.package/CachingMorph.class/instance/initialization/initialize.st A Morphic-Widgets-Tree.package/MorphTreeListManager.class/instance/selection change/noteRemovalOfAll_.st A Morphic-Widgets-Tree.package/MorphTreeListManager.class/instance/selection change/updateLastClickedMorph.st M Morphic-Widgets-Tree.package/MorphTreeModel.class/instance/updating/updateList.st M Morphic-Widgets-Tree.package/MorphTreeMorph.class/instance/updating/noteRemovalOfAll_.st M Morphic-Widgets-Tree.package/MorphTreeMorph.class/instance/updating/updateContentsWithPreviouslyExpanded_.st A MorphicTests.package/MorphTreeMorphTests.class/instance/as yet unclassified/testLastClickedMorphSetUponUpdateList.st A MorphicTests.package/MorphTreeMorphTests.class/instance/as yet unclassified/testMaintainingSelectionsOnUpdate.st A MorphicTests.package/MorphTreeMorphTests.class/instance/as yet unclassified/testUpdatingSelectionsOnUpdate.st A MorphicTests.package/MorphTreeMorphTests.class/instance/as yet unclassified/testUpdatingSelectionsOnUpdateWithRemoval.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script77.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40077.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40077 13508 CachingMorph is unused https://pharo.fogbugz.com/f/cases/13508 13451 For Pharo4: 13422 Image crashes because an open Nautilus browser hangs onto many objects https://pharo.fogbugz.com/f/cases/13451 http://files.pharo.org/image/40/40077.zip

July 9, 2014

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/40077 Home: https://github.com/pharo-project/pharo-core

July 9, 2014

13422 Debugger disabling fix

by Stephan Eggermont

Thanks

July 9, 2014

Re: [Pharo-dev] 13422 Debugger disabling fix

by Marcus Denker

On 09 Jul 2014, at 11:47, Stephan Eggermont <stephan(a)stack.nl> wrote: > Hi, > > What are the next steps for 13422 (and 13451)? Can it be integrated and a new build for 3+4 made? > Do we need to wait for the monkey? The monkey sadly has some problems (related to the Context cleanup somehow), its on my list but not yet fixed. Therefore: > The earlier slice in 30851 breaks a.o. the GTDebugger in Moose, so the latest version of > the slice is now added by hand to the moose ci. > I will integrate the Pharo4 fix now, and of it works the back port after. Marcus

July 9, 2014

13422 Debugger disabling fix

by Stephan Eggermont

Hi, What are the next steps for 13422 (and 13451)? Can it be integrated and a new build for 3+4 made? Do we need to wait for the monkey? The earlier slice in 30851 breaks a.o. the GTDebugger in Moose, so the latest version of the slice is now added by hand to the moose ci. Stephan

July 9, 2014

Re: [Pharo-dev] Suspending a Process

by Nicolai Hess

2014-07-09 2:07 GMT+02:00 Eliot Miranda <eliot.miranda(a)gmail.com>: > Hi Nicolai, > > > On Tue, Jul 8, 2014 at 7:19 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > >> I want to create a process doing some work and call #changed on a Morph. >> I want to start/suspend/resume or stop this process. >> But sometimes, suspending the process locks the UI-Process, >> and I don't know why. Did I miss something or do I have to care when to >> call suspend? >> >> Wrapping the "morph changed" call in >> UIManager default defer:[ morph changed]. >> Does not change anything. >> >> Here is an example to reproduce it. >> Create the process, >> call resume, call supsend. It works, most of the time, >> but sometimes, calling suspend locks the ui. >> >> p:=[[true] whileTrue:[ Transcript crShow: (DateAndTime now asString). 30 >> milliSeconds asDelay wait]] newProcess. >> > p resume. >> p suspend. >> > > If you simply suspend this process at random form a user-priority process > you'll never be able to damage the Delay machinery you're using, but > chances are you'll suspend the process inside the critical section that > Transcript uses to make itself thread-safe, and that'll lock up the > Transcript. > Thank you Eliot yes I guessed it locks up the critical section, but I hoped with would not happen if I the use UIManager defer call. > > ThreadSafeTranscript>>nextPutAll: value > accessSemaphore > critical: [stream nextPutAll: value]. > ^value > > So instead you need to use a semaphore. e.g. > > | p s wait | > s := Semaphore new. > p:=[[true] whileTrue:[wait ifTrue: [s wait]. Transcript crShow: > (DateAndTime now asString). 30 milliSeconds asDelay wait]] newProcess. > wait := true. > 30 milliSeconds asDelay wait. > wait := false. > s signal > > etc... > Is this a common pattern I can find in pharos classes. Or I need some help understanding this. The semaphore wait/signal is used instead of process resume/suspend? What I want is a process doing repeatly some computation, calls or triggers an update on a morph, and I want to suspend and resume this process. I would stop this discussion if someone tells me, "No your are doing it wrong, go this way ..", BUT what strikes me: in this example, that reproduces my problem more closely: |p m s running| running:=false. m:=Morph new color:Color red. s:= StringMorph new. m addMorphBack:s. p:=[[true]whileTrue:[20 milliSeconds asDelay wait. s contents:(DateAndTime now asString). m changed]] newProcess. m on:#mouseUp send:#value to:[ running ifTrue:[p suspend. m color:Color red.] ifFalse:[p resume.m color:Color green.]. running := running not]. m extent:(300@50). m openInWorld clicking on the morph will stop or resume the process, if it locks up I can still press alt+dot -> - a Debugger opens but the UI is still not responsive. I can click with the mouse on the debuggers close icon. - nothing happens, as the UI is still blocked. - pressing alt+Dot again, the mouse click on the close icon is processed and the first debugger window closes - maybe other debuggers open. Repeating this steps, at some time the system is *fully* responsive again! And miraculously, it works after that without further blockages. What's happening here? Nicolai > > HTH > > regards >> Nicolai >> > > > > -- > best, > Eliot >

July 9, 2014

[pharo-project/pharo-core] dbd690: 40076

by GitHub

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: dbd690425c1115802a093e934ad52f4a4e0208f5 https://github.com/pharo-project/pharo-core/commit/dbd690425c1115802a093e93… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-07-09 (Wed, 09 Jul 2014) Changed paths: R Morphic-Base.package/MatrixTransformMorph.class/README.md R Morphic-Base.package/MatrixTransformMorph.class/definition.st R Morphic-Base.package/MatrixTransformMorph.class/instance/accessing/transform_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/change reporting/invalidRect_from_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/drawing/drawOn_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/drawing/drawSubmorphsOn_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/drawing/visible_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/event handling/transformFrom_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/changeRotationCenter_with_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/hasNoScaleOrRotation.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/innerAngle.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/lastRotationDegrees.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/lastRotationDegrees_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/removeFlexShell.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/rotateBy_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/rotationDegrees_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/flexing/transform.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry etoy/heading.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry etoy/rotationCenter.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry etoy/rotationCenter_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry etoy/setDirectionFrom_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry testing/containsPoint_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry testing/fullContainsPoint_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry/boundsChangedFrom_to_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry/computeBounds.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry/extent_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry/handleBoundsChange_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/geometry/transformedBy_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/halos and balloon help/balloonHelpTextForHandle_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/initialization/initialize.st R Morphic-Base.package/MatrixTransformMorph.class/instance/initialize/asFlexOf_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/layout/fullBounds.st R Morphic-Base.package/MatrixTransformMorph.class/instance/menus/setRotationCenterFrom_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/private/privateFullMoveBy_.st R Morphic-Base.package/MatrixTransformMorph.class/instance/rotate scale and flex/addFlexShell.st R Morphic-Base.package/MatrixTransformMorph.class/instance/updating/changed.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script76.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40076.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Inspector.package/EyeInspector.class/instance/list/limit1.st M Spec-Inspector.package/EyeInspector.class/instance/list/limit2.st Log Message: ----------- 40076 13501 EyeInspector has a slow refresh time (part 1) https://pharo.fogbugz.com/f/cases/13501 13510 MatrixTransformMorph is not used https://pharo.fogbugz.com/f/cases/13510 13514 delete empty packages KeyChain and Settings-Compiler https://pharo.fogbugz.com/f/cases/13514 http://files.pharo.org/image/40/40076.zip

July 9, 2014

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/40076 Home: https://github.com/pharo-project/pharo-core

July 9, 2014

Re: [Pharo-dev] [Article] Elegant Pharo Code

by Hilaire

Thanks Sven, It is nice and helpful, I would look at it if I have the opportunity to give a talk about Pharo while in Taiwan this summer. Hilaire Le 08/07/2014 06:21, Sven Van Caekenberghe a Ã©crit : > Hi, > > I have written a new article presenting Pharo using a list of 23 short examples. > > Elegant Pharo Code > > Beautiful & Powerful One-liners, Expressions and Snippets > > https://medium.com/@svenvc/elegant-pharo-code-bb590f0856d0 > > As mentioned at the end of the article, I welcome feedback, remarks, comments, alternative solutions and other examples. The idea is to create yet another way to lure people into exploring Pharo while explaining by example why we like Pharo. > > Enjoy! > > Sven > > -- > Sven Van Caekenberghe > Proudly supporting Pharo > http://pharo.org > http://association.pharo.org > http://consortium.pharo.org > > > > > > -- Dr. Geo - http://drgeo.eu iStoa - http://launchpad.net/istoa

July 9, 2014

Re: [Pharo-dev] [Vm-dev] [DEV] Systemd socket activation patch for the VM

by Chris Muller

On Tue, Jul 8, 2014 at 9:08 AM, Max Leske <maxleske(a)gmail.com> wrote: > > Hi folks > > As promised a long time ago my colleague Nik Lutz has finalized the patch > for the VM that enables socket activation with Systemd. I will quickly go > over what the patch is supposed to achieve, how we plan to use socket > activation and what (minimal) changes are necessary. > > > Systemd Socket Activation: > Systemd opens a (network-) socket and waits for connections. When the > first client connects the assotiated service (VM) is started. Systemd > indicates via environment variable (LISTEN_FDS) that it opened a network > socket. > > Detailed documentation on socket activation with Systemd can be found > here: http://0pointer.de/blog/projects/socket-activation.html > > > Our scenario for socket activation: > At Cmsbox we have hundereds of images running on a server, all of which > listen on a dedicated network port for incoming connections. The server is > powerful enough to run all these processes concurrently, especially since > not every image receives requests all the time. > With socket activation we could further lower the server load and free up > resources for images with a high request rate. Images that donât receive > any requests for a specified amount of time can be suspended automatically > and reactivated when a request comes in. > OMG, I want that!

July 9, 2014