April 2010 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Socket>>accept

by Daniel Birkinshaw

On Sat, Apr 17, 2010 at 06:32:22PM +0100, Michael Roberts wrote: > Hi, i think there is something wrong with listenOn:. I am not sure > what exactly. the variation below seems to work in Pharo 1.0 on OS X. > > | server client | > server := Socket new. > server listenOn: 12345 backlogSize: 4. > server waitForConnectionFor: 600. > client := server accept. > client receiveData > --> 'hello ' > > > and from a shell > echo hello | nc localhost 12345 Confirmed, that works for me. I infer from this that it is illegal to call accept with a backlogSize of 0. Perhaps this should be checked for at a higher level so that a meaningful error can be returned? I was surprised to note that accept returns immediately even if there is no client connected. Try removing the line "server waitForConnectionFor: 600." in your example. The code still runs but the socket it returns is in the connected state even though it can't possibly be connected to anything. Is this behaviour correct? I thought accept was a blocking call. I'll look into ConnectionQueue, thanks for the help.

April 17, 2010

removing packages

by Yoandy RodrÃguez MartÃnez

Hello everyone: I downloaded a package called Asteroid and loaded it into my image. It was a .sar file so i used the install button in file manager and everything worked ok. Now i want to remove it from the image but i don't know how to do it. I've tried deleting the changesets and thought and unload option in monticello context menu: first thing didn't worked, second launched some kind of error console and I had to close the VM. Any hint on how to solve this? Thanks in advance

April 17, 2010

Re: [Pharo-users] Traits tutorial/example

by StÃ©phane Ducasse

Hi johan Not really. I have to write one. Johan please have a look at the esug presentation I did at ESUG last year. I took 1 hour and wrote a first cut http://book.pharo-project.org/book/Traits/ Let me know what you want to know. I will continue to work on it to produce a real chapter for the next book but I will do that incrementally. > Hi all, > > is there a traits tutorial or some example material that I can peruse to get started? > > -- > Johan Fabry > jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry > PLEIAD Lab - Computer Science Department (DCC) - University of Chile > > > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

April 17, 2010

Re: [Pharo-users] Socket>>accept

by Michael Roberts

Hi, i think there is something wrong with listenOn:. I am not sure what exactly. the variation below seems to work in Pharo 1.0 on OS X. | server client | server := Socket new. server listenOn: 12345 backlogSize: 4. server waitForConnectionFor: 600. client := server accept. client receiveData --> 'hello ' and from a shell echo hello | nc localhost 12345 I also check the status of my sockets using lsof which is quite good to debug mike-mac:~ mike$ lsof -n -i -P | grep Squeak Squeak 10787 mike 11u IPv4 0x66bc270 0t0 TCP *:54180 (LISTEN) Squeak 10787 mike 12u IPv4 0x66c1a68 0t0 TCP 127.0.0.1:12345->127.0.0.1:54183 (CLOSE_WAIT) You can also have a look at ConnectionQueue which implements a server loop like you describe hope that helps cheers, Mike On Thu, Apr 15, 2010 at 1:08 PM, Daniel Birkinshaw <daniel.birkinshaw(a)googlemail.com> wrote: > On Thu, Apr 15, 2010 at 09:19:55AM +0200, StÃ©phane Ducasse wrote: >> Thanks for reporting... >> Daniel can you also try: >> >> Â http://squeakvm.org/unix/release/Squeak-4.0.3.2202-linux_i386.tar.gz binaries >> Â http://lolgzs.free.fr/pharo/Pharo-1.0-OneClick.zip >> >> Stef > > No luck there either I'm afraid. > > Also I should mention that the launcher script that comes with squeak > 4.0.3 and is used by the pharo oneclick package segfaults on my machine. > I don't know the exact cause, but modifying the script to remove the > call to padsp allows it to run correctly. I'll attach the output if you > want, but I suspect it might be more appropriate to report it to the > upstream devs. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

April 17, 2010

Re: [Pharo-users] Traits tutorial/example

by Alexandre Bergel

I do not think there is a tutorial on traits for Pharo users. In O2, I wrote some commands that allow you to easily create and move methods from a class to a trait. This is particularly handy when you want to refactor your application. Cheers, Alexandre On 16 Apr 2010, at 16:56, Johan Fabry wrote: > Hi all, > > is there a traits tutorial or some example material that I can > peruse to get started? > > -- > Johan Fabry > jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry > PLEIAD Lab - Computer Science Department (DCC) - University of Chile > > > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

April 16, 2010

Traits tutorial/example

by Johan Fabry

Hi all, is there a traits tutorial or some example material that I can peruse to get started? -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

April 16, 2010

Re: [Pharo-users] [Pharo-project] [ANN] Pharo 1.0 released!

by StÃ©phane Ducasse

>> Thanks, Daniel, for posting on reddit! We currently are almost at the top of the list... >> >> >> Cheers, >> Adrian > > Gotta love reddit... > 3 most repeated/discussed topics in comments: > - "I don't know what Smalltalk is, and the site doesn't tell me, not even the about page!" > - "SUCKS, I can't use my favourite text-editor and git!" > - "1 + 2 * 3 = 9 WTF SMALLTALK" > > :D The good news is that at least two know a bit :) Stef

April 16, 2010

File Browser question

by Friedrich Dominicus

Maybe I'm dump but, I can not find an easy way to choose a directory but navigating with the mouse. Could it be that there isn't one way to type in the path to a directory? Regards Friedrich

April 16, 2010