- Pharo-users - lists.pharo.org

Re: [Pharo-users] Remote administration of VM(s)

by Mariano Martinez Peck

This is VERY valuable information. It would be cool to have it somewhere. FAQ, website, book, I don't know. Cheers Mariano On Fri, May 7, 2010 at 8:03 PM, Adrian Lienhard <adi(a)netstyle.ch> wrote: > Hi Geoffroy, > > I don't know about public projects, but here is what we do at Cmsbox. > > We use HTTP to interact with the images from the command line (we have > several hundreds images running on each server, so its a bit more convenient > than using VNC ;). It is a combination of bash, curl and Seaside. On the > image side we have a simple request handler that calls methods with > arguments passed via query strings. From the command line we can do stuff > like "cbfor beta-testers disableLogin", which sends the message > #disableLogin to all images in the beta-tester group. > > To manage the VM processes we use daemontools ( > http://cr.yp.to/daemontools.html) and again various scripts to automate > installation, configuration, version upgrading, etc. > > For monitoring we use Nagios, and Munin. Former also uses the HTTP > interface to check images for their health. > > Maybe the tools Andreas Brotbeck implemented for GLASS may be useful for > you: http://andreas.mindclue.ch/blog/Announcing+SeaShell > > HTH, > Adrian > > On May 7, 2010, at 08:01 , Geoffroy Couprie wrote: > > > Hello, > > > > Is there another mean of remote administration than VNC? VNC is nice, > > but if your internet connection is slow or buggy, it becomes hard to > > use. Is there a project about a command line interface (ncurses like) > > for Pharo? > > > > Also, how do you manage a lot of VMs? Is there some sort of monitoring > > and administration interface I can use? (I think that question is > > mostly directed at the seasidehosting.st folks) > > I think I saw an ESUG GSOC idea about that ( > > http://gsoc2010.esug.org/ideas#h-116 ). > > > > Best regards, > > > > Geoffroy > > > > _______________________________________________ > > Pharo-users mailing list > > Pharo-users(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

May 9, 2010

Messing with sockets

by Geoffroy Couprie

Hello, I try to play with sockets in Pharo, and I encounter a strange error. Here is my code: |tempsock| Socket initialize. tempsock := Socket newTCP. tempsock listenOn: 12345 backlogSize: 4. [sock isNil] whileTrue:[sock:= tempsock waitForAcceptFor: 600]. sock sendCommand: 'Hello world!!'. sock ifNotNil: [[sock isConnected] whileTrue: [[sock waitForDataUntil:2000] ifTrue: [sock sendCommand:'Looping'. sock sendCommand: sock receiveData ]. ]]. sock closeAndDestroy. Once the connection is accepted, an exception is thrown in "sock waitForDataUntil:2000" by BlockCosure>>mustBeBooleanIn:context. From what I see, the signal "proceed for truth" is sent, and th debugger kicks in. How can I prevent the debugger from starting? Best regards, Geoffroy

May 9, 2010

Re: [Pharo-users] Remote administration of VM(s)

by Geoffroy Couprie

Hello Adrian, On Fri, May 7, 2010 at 8:03 PM, Adrian Lienhard <adi(a)netstyle.ch> wrote: > Hi Geoffroy, > > I don't know about public projects, but here is what we do at Cmsbox. > > We use HTTP to interact with the images from the command line (we have several hundreds images running on each server, so its a bit more convenient than using VNC ;). It is a combination of bash, curl and Seaside. On the image side we have a simple request handler that calls methods with arguments passed via query strings. From the command line we can do stuff like "cbfor beta-testers disableLogin", which sends the message #disableLogin to all images in the beta-tester group. > > To manage the VM processes we use daemontools (http://cr.yp.to/daemontools.html) and again various scripts to automate installation, configuration, version upgrading, etc. > > For monitoring we use Nagios, and Munin. Former also uses the HTTP interface to check images for their health. > > Maybe the tools Andreas Brotbeck implemented for GLASS may be useful for you: http://andreas.mindclue.ch/blog/Announcing+SeaShell > Thanks for the tips! Best regards, Geoffroy

May 9, 2010

Build squeak vm screencast updated (with FT2Plugin and Alien)

by laurent laffont

on pharocasts: http://pharocasts.blogspot.com/2010/03/build-squeak-vm-on-linux.html Feedback always appreciated :) Cheers, Laurent Laffont

May 9, 2010

Re: [Pharo-users] Remote administration of VM(s)

by Adrian Lienhard

Hi Geoffroy, I don't know about public projects, but here is what we do at Cmsbox. We use HTTP to interact with the images from the command line (we have several hundreds images running on each server, so its a bit more convenient than using VNC ;). It is a combination of bash, curl and Seaside. On the image side we have a simple request handler that calls methods with arguments passed via query strings. From the command line we can do stuff like "cbfor beta-testers disableLogin", which sends the message #disableLogin to all images in the beta-tester group. To manage the VM processes we use daemontools (http://cr.yp.to/daemontools.html) and again various scripts to automate installation, configuration, version upgrading, etc. For monitoring we use Nagios, and Munin. Former also uses the HTTP interface to check images for their health. Maybe the tools Andreas Brotbeck implemented for GLASS may be useful for you: http://andreas.mindclue.ch/blog/Announcing+SeaShell HTH, Adrian On May 7, 2010, at 08:01 , Geoffroy Couprie wrote: > Hello, > > Is there another mean of remote administration than VNC? VNC is nice, > but if your internet connection is slow or buggy, it becomes hard to > use. Is there a project about a command line interface (ncurses like) > for Pharo? > > Also, how do you manage a lot of VMs? Is there some sort of monitoring > and administration interface I can use? (I think that question is > mostly directed at the seasidehosting.st folks) > I think I saw an ESUG GSOC idea about that ( > http://gsoc2010.esug.org/ideas#h-116 ). > > Best regards, > > Geoffroy > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

May 7, 2010

Re: [Pharo-users] Remote administration of VM(s)

by StÃ©phane Ducasse

> Hello, > > Is there another mean of remote administration than VNC? VNC is nice, > but if your internet connection is slow or buggy, it becomes hard to > use. Is there a project about a command line interface (ncurses like) > for Pharo? > > Also, how do you manage a lot of VMs? Is there some sort of monitoring > and administration interface I can use? (I think that question is > mostly directed at the seasidehosting.st folks) > I think I saw an ESUG GSOC idea about that ( > http://gsoc2010.esug.org/ideas#h-116 ). we would love to have that :) > Best regards, > > Geoffroy > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

May 7, 2010

Remote administration of VM(s)

by Geoffroy Couprie

Hello, Is there another mean of remote administration than VNC? VNC is nice, but if your internet connection is slow or buggy, it becomes hard to use. Is there a project about a command line interface (ncurses like) for Pharo? Also, how do you manage a lot of VMs? Is there some sort of monitoring and administration interface I can use? (I think that question is mostly directed at the seasidehosting.st folks) I think I saw an ESUG GSOC idea about that ( http://gsoc2010.esug.org/ideas#h-116 ). Best regards, Geoffroy

May 7, 2010

Re: [Pharo-users] Using FFI to call a MacOs System function

by Mariano Martinez Peck

BTW....keyboards seems to be a .h (a header) , but not a library...at least in my mac Do you have also the library ? I am still newbie with the Mac OS :( Cheers mariano On Wed, May 5, 2010 at 11:10 PM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > On Tue, May 4, 2010 at 4:46 PM, David Wilson <djwilson(a)bluewin.ch> wrote: > >> Hi >> >> I'm new to Pharo (although I was a Smalltalk programmer in the 90's), and >> I'm trying to use FFI to access an MacOs system function: >> >> > Hi and welcome! > > >> apiKLGetKeyboardLayoutCount >> < cdecl: ulong 'KLGetKeyboardLayoutCount' (void) module: 'keyboards'> >> ^ self externalCallFailed. >> >> I get an error "'Unable to find function address'" which seems to say the >> OS-module "keyboards" can't be found. >> > > Exactly. That's the problem. > > >> I can't figure out what the address should be. >> The function is defined here: >> http://developer.apple.com/legacy/mac/library/documentation/Carbon/Referenc… >> (yes, it's deprecated, I have a very old mac runnning 10.4). >> >> > But you see the library in your computer, isn't it ? I mean, it is there, > but FFI doesn't find it ? > > > >> I'm not sure if I'm using FFI correctly, do I have to somehow include the >> external library in the Pharo VM? >> > > No, you shouldn't need to do that. However, you can try to put them there > just to see if that's the problem. I think that at some point (depends on an > order) the library is searched in the same place where you are calling from. > So, yes, do a test, but just a test. It should work without doing that. > > How did you install FFI ? Which Pharo VM and image versions are you using > ? > > Can anyone help? >> >> > I would like too, but I don't have such library. > > I developed a wrapper for a Clibrary called OpenDBX using FFI. In our > website, some people experimented similar problems. > Please take a look to the title "Problems with Mac OS:" of the following > link: > > http://www.squeakdbx.org/Compiling%20and%20installing%20OpenDBX > > I also cc'ed people that can help you. > > Cheers > > Mariano > > > I'm looked for FFI examples, but don't find anything helpful. >> >> David >> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> > >

May 5, 2010

Re: [Pharo-users] Using FFI to call a MacOs System function

by Mariano Martinez Peck

On Tue, May 4, 2010 at 4:46 PM, David Wilson <djwilson(a)bluewin.ch> wrote: > Hi > > I'm new to Pharo (although I was a Smalltalk programmer in the 90's), and > I'm trying to use FFI to access an MacOs system function: > > Hi and welcome! > apiKLGetKeyboardLayoutCount > < cdecl: ulong 'KLGetKeyboardLayoutCount' (void) module: 'keyboards'> > ^ self externalCallFailed. > > I get an error "'Unable to find function address'" which seems to say the > OS-module "keyboards" can't be found. > Exactly. That's the problem. > I can't figure out what the address should be. > The function is defined here: > http://developer.apple.com/legacy/mac/library/documentation/Carbon/Referenc… > (yes, it's deprecated, I have a very old mac runnning 10.4). > > But you see the library in your computer, isn't it ? I mean, it is there, but FFI doesn't find it ? > I'm not sure if I'm using FFI correctly, do I have to somehow include the > external library in the Pharo VM? > No, you shouldn't need to do that. However, you can try to put them there just to see if that's the problem. I think that at some point (depends on an order) the library is searched in the same place where you are calling from. So, yes, do a test, but just a test. It should work without doing that. How did you install FFI ? Which Pharo VM and image versions are you using ? Can anyone help? > > I would like too, but I don't have such library. I developed a wrapper for a Clibrary called OpenDBX using FFI. In our website, some people experimented similar problems. Please take a look to the title "Problems with Mac OS:" of the following link: http://www.squeakdbx.org/Compiling%20and%20installing%20OpenDBX I also cc'ed people that can help you. Cheers Mariano I'm looked for FFI examples, but don't find anything helpful. > > David > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

May 5, 2010

Newbie: How to load and use HTTP parser

by Andrei Stebakov

Hi I have a simple task of parsing some html content in Pharo (loading an html page using HTTPSocket and retrieving useful info from it). Having browsed for an html parser in my current one-click Pharo 1.0 image, I couldn't find one. How do I find/download a (the) HTML parser? Thank you, Andrei

May 5, 2010