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

Re: [Pharo-dev] Should Job use SystemAnnouncer?

by Henrik Johansen

On Sep 6, 2013, at 1:35 , Camillo Bruni <camillobruni(a)gmail.com> wrote: > > On 2013-09-06, at 04:52, Henrik Johansen <henrik.s.johansen(a)veloxit.no> wrote: > >> >> On Sep 4, 2013, at 12:12 , Camillo Bruni <camillobruni(a)gmail.com> wrote: >> >>> On 2013-09-03, at 18:57, Stephan Eggermont <stephan(a)stack.nl> wrote: >>>> Camillo wrote: >>>>> in this case it is only the instance of Job which knows the status. >>>>> Thread-safeness is not an issue since the progress bar is pure approximation. >>>> >>>> The problem is not approximation. Objects are not reentrant, getting the value >>>> out of a model while it is reorganizing its datastructure is likely to give interesting >>>> and difficult to reproduce results (dividing by 0, nil-pointer exceptions). >>>> >>>>> that does not work properly and inaccurately reports long running jobs, for instance >>>>> when running tests. Usually tests take far less than 1 ms, in which case this scheme >>>>> works perfectly. However from time to time you have 1 test that runs for a couple of >>>>> seconds. If you run 5000 tests you have to run quite a few tests to get that 1% update >>>>> margin, so very often the UI does not correctly report the current status. >>>> >>>> That is not a solvable problem. A progress bar depends on a value increasing from >>>> min to max. The model is responsible for making reasonable steps. >>> >>> ok, different question, how do you solve this very use-case without polling? >>> >>> >>> 1. run test 1 [1ms] >>> ..... >>> N. run test N [1ms] >>> ------------------------------------------- >>> Progress Bar update limit reached after >>> a) either N update calls >>> b) N ms >>> => next update will happen in >>> a) N calls >>> b) N ms >>> ------------------------------------------- >>> N+1. run test N+1 [1000 ms] >>> >>> That means that the UI shows the wrong value (run test N) instead of the current >>> progress value (run test N+1), which is not interesting. >>> The model, in this case the test runner, properly informed the UI about every change, >>> but the update limitations in the ProgressBarMorph cannot properly detect such a case. >>> - either you update way to often => performance overhead >>> - or you update not often enough => inaccurate progress indication when progress step times differ a lot >>> >>> There is simply no way you can properly solve this case without active polling. >> >> Sure there is. (Assuming tests are run at lower-than GUI priority so it actually gets a chance to update without forced refresh directly from the code) >> - Record the state of Job when it's announced. >> - Check a boolean for whether a GUI update is already scheduled. >> - If not, check the last update time >> - If update interval since then has passed, send an invalidate to the GUI (with you as model, painting current value of the state last recorded in you), and record the new update time >> - If less than interval, set the GUI update schedule boolean to true, fork of a process (at a higher-than-current priority) which waits for the remainder before doing the same as the none-delayed path, then resetting the GUI update boolean. > > ... which is 2 tmes more complicated than polling, but ok, it is possible The simplest thing is of course to just invalidate on each state change, instead of duplicating DamageRecorder logic to avoid the normal refresh of 50 fps. I don't quite see how N registrations of a small damage rect + 50 refreshes a second of the ProgressBar should make a significant performance impact, but oh well. Cheers, Henry

Sept. 11, 2013

Re: [Pharo-dev] How to bind keyboard shortcuts to messages ?

by Goubier Thierry

Le 11/09/2013 12:51, Guillermo Polito a Ã©crit : > > On Wed, Sep 11, 2013 at 10:03 AM, Goubier Thierry > <thierry.goubier(a)cea.fr <mailto:thierry.goubier@cea.fr>> wrote: > > > > Le 11/09/2013 09:49, Guillermo Polito a Ã©crit : > > Hehey! I just downloaded latest 3.0 and #bindKeyCombination: > toAction: > is there (you made me doubt if I did it or not! :P) > > But yes, the api for 20 is on:do: and it changed for 30 to clarify. > > > Me, I'm getting a bit confused in 30 about that:). It seems it has > changed three times in 3.0. I've seen so far being discussed: > > onKey:do: > onShortcut:do: > onKeyCombination:do: > > and now: > > bindKeyCombination:toAction: > > > Yes, we revisited the decision a couple of times :). Sorry if that made > trouble... The last one has the merit of being perfectly clear :) > > Has on:do: been removed or deprecated in 3.0? > > > Not yet. As you can see if you browse latest version, you have > > on: aShortcut do: anAction > ^ self bindKeyCombination: aShortcut toAction: anAction > > That should be actually deprecated (to avoid people using it and confuse > it with exception handling), yes... And to force all users of it to switch to the new version when porting to 3.0 as well. If it looks as reasonably final, I'll add an issue to bring the new selector to 2.0. Thanks :) Thierry > > Thierry > > > On Wed, Sep 11, 2013 at 9:32 AM, kilon <thekilon(a)yahoo.co.uk > <mailto:thekilon@yahoo.co.uk> > <mailto:thekilon@yahoo.co.uk <mailto:thekilon@yahoo.co.uk>>> wrote: > > Ah ok, no problemo I am in no hurry, and I agree its a very > important change > as it makes things a lot more readable. > > > > -- > View this message in context: > http://forum.world.st/How-to-__bind-keyboard-shortcuts-to-__messages-tp4707… > <http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p…> > Sent from the Pharo Smalltalk Developers mailing list > archive at > Nabble.com. > > > > -- > Thierry Goubier > CEA list > Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s > 91191 Gif sur Yvette Cedex > France > Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 > > -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Sept. 11, 2013

Re: [Pharo-dev] How to bind keyboard shortcuts to messages ?

by Guillermo Polito

On Wed, Sep 11, 2013 at 10:03 AM, Goubier Thierry <thierry.goubier(a)cea.fr>wrote: > > > Le 11/09/2013 09:49, Guillermo Polito a Ã©crit : > > Hehey! I just downloaded latest 3.0 and #bindKeyCombination: toAction: >> is there (you made me doubt if I did it or not! :P) >> >> But yes, the api for 20 is on:do: and it changed for 30 to clarify. >> > > Me, I'm getting a bit confused in 30 about that:). It seems it has changed > three times in 3.0. I've seen so far being discussed: > > onKey:do: > onShortcut:do: > onKeyCombination:do: > > and now: > > bindKeyCombination:toAction: > Yes, we revisited the decision a couple of times :). Sorry if that made trouble... > > Has on:do: been removed or deprecated in 3.0? > Not yet. As you can see if you browse latest version, you have on: aShortcut do: anAction ^ self bindKeyCombination: aShortcut toAction: anAction That should be actually deprecated (to avoid people using it and confuse it with exception handling), yes... > > Thierry > > >> On Wed, Sep 11, 2013 at 9:32 AM, kilon <thekilon(a)yahoo.co.uk >> <mailto:thekilon@yahoo.co.uk>> wrote: >> >> Ah ok, no problemo I am in no hurry, and I agree its a very >> important change >> as it makes things a lot more readable. >> >> >> >> -- >> View this message in context: >> http://forum.world.st/How-to-**bind-keyboard-shortcuts-to-** >> messages-tp4707525p4707605.**html<http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p…> >> Sent from the Pharo Smalltalk Developers mailing list archive at >> Nabble.com. >> >> >> > -- > Thierry Goubier > CEA list > Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s > 91191 Gif sur Yvette Cedex > France > Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 > >

Sept. 11, 2013

Update of ConfigurationOfOSProcess

by Goubier Thierry

Hi all, I have updated ConfigurationOfOSProcess and ConfigurationOfCommandShell to load the latest versions of OSProcess and CommandShell. I uploaded ConfigurationOfOSProcess in the Pharo20 Meta repository, the Pharo30 Meta repository, and both configurations in squeaksource meta repository. Thierry -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Sept. 11, 2013

Re: [Pharo-dev] How to state up to date with Pharo ?

by Damien Cassou

On Wed, Sep 11, 2013 at 10:12 AM, kilon <thekilon(a)yahoo.co.uk> wrote: > So what the best way to ensure that I have the latest version of pharo ? what many of do is to let a continuous integration server build your application on top of the latest Pharo everyday. So, you would have to: - push your code somewhere public (e.g., smalltalkhub) - write a configuration for your application (read the metacello chapter of this book http://rmod.lille.inria.fr/deepIntoPharo/) - register at https://ci.inria.fr/ - ask to be a member of the pharo-contribution project on https://ci.inria.fr/ - create a new job by cloning https://ci.inria.fr/pharo-contribution/view/Helper/job/JobTemplate/ And let Jenkins to the job. Everyday, you start your work by downloading the newest image built by Jenkins. I advise you to use the Pharo launcher (https://ci.inria.fr/pharo-contribution/job/PharoLauncher) which downloads images directly from Jenkins. -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

Sept. 11, 2013

Re: [Pharo-dev] How to state up to date with Pharo ?

by Goubier Thierry

My approach: make clean make With a makefile similar to: https://github.com/ThierryGoubier/AltBrowser/blob/master/Documentation/Make… Some of the usefull scripts are: wget -0- get.pharo.org/30+vm | bash Will get you the latest vm and the latest image. You can also rely on the pharo ppa for ubuntu, if this is the Linux you use. Thierry Le 11/09/2013 10:12, kilon a Ã©crit : > So what the best way to ensure that I have the latest version of pharo ? > > To tell you the truth I kinda miss git/github ability to keep me update to > the latest version of things. The problem with pharo is that it uses its own > internal system and updating things is not as simple as a "git pull". So > whats the best way to being always updated with the VM (binary) and the > Image ? > > I have taken a visit at jenkins server but I am confused how to use it and > what I should be downloading. Builds are not documented in such way to make > clear to a begineer like me what he should download for his needs. > > I know there is also a github repo again I am confused whether I should > clone that . > > > > -- > View this message in context: http://forum.world.st/How-to-state-up-to-date-with-Pharo-tp4707617.html > Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. > > > -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Sept. 11, 2013

Re: [Pharo-dev] How to bind keyboard shortcuts to messages ?

by Goubier Thierry

Le 11/09/2013 10:05, kilon a Ã©crit : > yes you are correct of course, it has changed, I download latest image and > now it works. Apparently Pharo moves too fast forward for me :D Will need to > make more regular download of images. Actually now that I think of it I need > to ask another question of the list about staying up to date, I think it > deserves its own thread. Can start here :) What I do is have makefiles which delete my local image and build a new one by: downloading from get.pharo.org and loading slices and default packages I need. Rebuilding a new image from scratch takes between 1 and 5 minutes (with a huge boost courtesy of Esteban's RPackageSet caching). Thierry > > Guillermo Polito wrote >> Hehey! I just downloaded latest 3.0 and #bindKeyCombination: toAction: is >> there (you made me doubt if I did it or not! :P) >> >> But yes, the api for 20 is on:do: and it changed for 30 to clarify. >> >> >> On Wed, Sep 11, 2013 at 9:32 AM, kilon < > >> thekilon@.co > >> > wrote: >> >>> Ah ok, no problemo I am in no hurry, and I agree its a very important >>> change >>> as it makes things a lot more readable. >>> >>> >>> >>> -- >>> View this message in context: >>> http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p… >>> Sent from the Pharo Smalltalk Developers mailing list archive at >>> Nabble.com. >>> >>> > > > > > > -- > View this message in context: http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p… > Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. > > > -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Sept. 11, 2013

How to state up to date with Pharo ?

by kilon

So what the best way to ensure that I have the latest version of pharo ? To tell you the truth I kinda miss git/github ability to keep me update to the latest version of things. The problem with pharo is that it uses its own internal system and updating things is not as simple as a "git pull". So whats the best way to being always updated with the VM (binary) and the Image ? I have taken a visit at jenkins server but I am confused how to use it and what I should be downloading. Builds are not documented in such way to make clear to a begineer like me what he should download for his needs. I know there is also a github repo again I am confused whether I should clone that . -- View this message in context: http://forum.world.st/How-to-state-up-to-date-with-Pharo-tp4707617.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Sept. 11, 2013

Re: [Pharo-dev] How to bind keyboard shortcuts to messages ?

by kilon

yes you are correct of course, it has changed, I download latest image and now it works. Apparently Pharo moves too fast forward for me :D Will need to make more regular download of images. Actually now that I think of it I need to ask another question of the list about staying up to date, I think it deserves its own thread. Guillermo Polito wrote > Hehey! I just downloaded latest 3.0 and #bindKeyCombination: toAction: is > there (you made me doubt if I did it or not! :P) > > But yes, the api for 20 is on:do: and it changed for 30 to clarify. > > > On Wed, Sep 11, 2013 at 9:32 AM, kilon < > thekilon@.co > > wrote: > >> Ah ok, no problemo I am in no hurry, and I agree its a very important >> change >> as it makes things a lot more readable. >> >> >> >> -- >> View this message in context: >> http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p… >> Sent from the Pharo Smalltalk Developers mailing list archive at >> Nabble.com. >> >> -- View this message in context: http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Sept. 11, 2013

Re: [Pharo-dev] How to bind keyboard shortcuts to messages ?

by Goubier Thierry

Le 11/09/2013 09:49, Guillermo Polito a Ã©crit : > Hehey! I just downloaded latest 3.0 and #bindKeyCombination: toAction: > is there (you made me doubt if I did it or not! :P) > > But yes, the api for 20 is on:do: and it changed for 30 to clarify. Me, I'm getting a bit confused in 30 about that:). It seems it has changed three times in 3.0. I've seen so far being discussed: onKey:do: onShortcut:do: onKeyCombination:do: and now: bindKeyCombination:toAction: Has on:do: been removed or deprecated in 3.0? Thierry > > On Wed, Sep 11, 2013 at 9:32 AM, kilon <thekilon(a)yahoo.co.uk > <mailto:thekilon@yahoo.co.uk>> wrote: > > Ah ok, no problemo I am in no hurry, and I agree its a very > important change > as it makes things a lot more readable. > > > > -- > View this message in context: > http://forum.world.st/How-to-bind-keyboard-shortcuts-to-messages-tp4707525p… > Sent from the Pharo Smalltalk Developers mailing list archive at > Nabble.com. > > -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Sept. 11, 2013