# Re: Anyone interested in implementing Etc module for Mono? **URL:** \ **Category:** IronRuby\ **Created:** [April 4, 2010, 8:35pm UTC](https://www.ruby-forum.com/t/re-anyone-interested-in-implementing-etc-module-for-mono/186323 "2010-04-04T20:35:27Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![raker\_t](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ecae2f/32.png) [@raker\_t](https://www.ruby-forum.com/u/raker_t)\ **Post date:** [April 4, 2010, 8:35pm UTC](https://www.ruby-forum.com/t/re-anyone-interested-in-implementing-etc-module-for-mono/186323/1 "2010-04-04T20:35:27Z")
Most of the libraries are still poorly specced. I actually wrote most of the current etc ones in order to get them passing. If you look around though, you can find places in the lib specs that are empty files ☹ * * * From: Shri B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Sent: Sunday, April 04, 2010 10:58 AM To: removed\_email\_address@domain.invalid [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? If you run “mspec ci library\etc”, that runs the real RubySpec specs. irtests does run a command like “mspec ci lib” which will run the Etc RubySpec specs. [http://wiki.github.com/ironruby/ironruby/rubyspec](http://wiki.github.com/ironruby/ironruby/rubyspec) might be useful to you about how these scripts work. The RubySpecs are supposed to be working on all platforms. The specs use checks like “platform\_is :windows” or “platform\_is\_not :windows” to have versions for all OSes. I am surprised that the current ones expect nil. You can fix them to have versions of the specs that work on Unixes. You can run the tests against MRI using “mspec –tr” to ensure that the spec you add is correct. If you can streamline the development process for Mono, that will be great so others have an easier time in the future… From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Ryan R. Sent: Sunday, April 04, 2010 9:54 AM To: removed\_email\_address@domain.invalid Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? I’ve posted all the type fixes, but since I can’t compile master, I’m hesitant to rebase. What should I do? Also, I still haven’t gotten to the tests. Looks like the current ones all expect nil and assume Windows. Are those the real rubyspec specs? Sent from my iPhone On Apr 3, 2010, at 10:13 PM, Jim D. \ wrote: Also, to get a Int32 out of a UInt32, you should be able to use induced\_from: > > > a = System::UInt32.new(1) > > > =\> 1 (UInt32) > > > Fixnum.induced\_from(a) > > > =\> 1 Minor thing, but it will work. The fact that etc is a class is my bad. I was just getting enough implemented in order to pass some specs and use libraries that expected the nil on Windows. JD From: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Tomas M. Sent: Saturday, April 03, 2010 6:01 PM To: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? That is a bug. Make it a module. Tomas From: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Ryan R. Sent: Saturday, April 03, 2010 5:02 PM To: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? Quick question: The etc.rb in Libs is a class, but the implementation in the Ruby Standard Library appears to be a module. Should I keep the class or use the module? Ryan R. On Sat, Apr 3, 2010 at 4:43 PM, Tomas M. \ wrote: Nice work. A few suggestions: - ``` You can move the file to ``` C:\M0\Merlin\Main\Languages\Ruby\Libs. - ``` Use System::Environment:: ``` System::Environment.OSVersion.Platform to detect the OS (see e.g. Win32API.rb in Libs). - ``` Rather than check for the platform in every method it might ``` be better to define the methods differently on Windows. Something like: module Etc platform = System::PlatformID case System::Environment.OSVersion.Platform when platform.Win32S, platform.WinCE, platform.Win32Windows, platform.Win32NT: ``` def self.endgrent; end ``` def self.endpwent; end def self.getgrent; end … else load\_assembly ‘Mono.Posix’ def self.endgrent ``` Mono::Unix::Native::Syscall.endgrent ``` end def self.endpwent ``` Mono::Unix::Native::Syscall.endpwent ``` end def self.getgrent ``` to_group(Mono::Unix::Native::Syscall.getgrent) ``` end … end end From: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Ryan R. Sent: Saturday, April 03, 2010 3:59 PM To: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? I’ve posted an initial “complete” implementation, though I have only done basic testing. I have a couple of TODO’s remaining and some cleanup, as well as writing actual specs. I still don’t have tests running. You can find the module here: [http://github.com/panesofglass/ironruby/blob/linux/Merlin/External.LCA\_RESTRICTED/Languages/IronRuby/Etc/IronRuby.Libraries.Etc/etc.rb](http://github.com/panesofglass/ironruby/blob/linux/Merlin/External.LCA_RESTRICTED/Languages/IronRuby/Etc/IronRuby.Libraries.Etc/etc.rb) Not the prettiest thing in the world, but I just wanted to get it working. I definitely still have work to do. Cheers, Ryan R. Email: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) LinkedIn: [http://www.linkedin.com/in/ryanriley](http://www.linkedin.com/in/ryanriley) Blog: [http://wizardsofsmart.net/](http://wizardsofsmart.net/) Twitter: @panesofglass Website: [http://panesofglass.org/](http://panesofglass.org/) On Sat, Apr 3, 2010 at 2:30 PM, Ryan R. \ wrote: Sure! Mono::Unix::Native::Passwd[http://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Passwd](http://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Passwd) and Mono::Unix::Native::Group[http://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Group](http://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Group) that are returned from the Mono::Unix::Native::Syscall[http://www.go-mono.com/docs/index.aspx?link=M:Mono.Posix.Syscall.getusername(System.Int32](http://www.go-mono.com/docs/index.aspx?link=M:Mono.Posix.Syscall.getusername(System.Int32) functions have UInt32, System.String, and System.String[]. System.String is no biggie, and I’m finding .to\_i on a System.UInt32 is still displayed as System.UInt32, so I suppose that’s not an issue, either. MRI displays Fixnum as the type, and I was trying to get the correct types back from the functions. That leaves MRI’s Array to Mono’s System.String[]. My current implementation is just a Ruby module wrapping calls to the Mono functions and returning the appropriate types. Most of it is working, though without being able to run tests easily, I’m testing from the command line. I still need to add conditionals to return nil if it’s run on Windows. I suppose I also need to conditionally load the Mono.Posix.dll if it’s on Windows, too. I’m about to finish the basic implementation and post to github[http://github.com/panesofglass/ironruby/blob/linux/Merlin/External.LCA\_RESTRICTED/Languages/IronRuby/Etc/IronRuby.Libraries.Etc/etc.rb](http://github.com/panesofglass/ironruby/blob/linux/Merlin/External.LCA_RESTRICTED/Languages/IronRuby/Etc/IronRuby.Libraries.Etc/etc.rb). (I’ve already got what I finished last night up there.) I also asked Shri for a pairing session to make sure it’s inline with what you’re wanting. Cheers, Ryan R. Email: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) LinkedIn: [http://www.linkedin.com/in/ryanriley](http://www.linkedin.com/in/ryanriley) Blog: [http://wizardsofsmart.net/](http://wizardsofsmart.net/) Twitter: @panesofglass Website: [http://panesofglass.org/](http://panesofglass.org/) On Sat, Apr 3, 2010 at 11:25 AM, Tomas M. \ wrote: Can you give an example of where you need the conversions? Tomas From: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Jim D. Sent: Saturday, April 03, 2010 11:00 AM To: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? No conversion for Fixnums is needed (Fixnums are ints). Arrays are harder. I would take a look at clr\_ext in merlin/main/languages/ruby/samples. Inside that file is a to\_clr\_array method JD * * * From: Ryan R. \ Sent: Saturday, April 03, 2010 12:13 AM To: removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) \ Subject: Re: [Ironruby-core] Anyone interested in implementing Etc module for Mono? Where is documentation on converting between CLR and Ruby types? I can get RubyStrings, but what about Fixnum and Array? Thanks, Ryan R. * * * Ironruby-core mailing list removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [http://rubyforge.org/mailman/listinfo/ironruby-core](http://rubyforge.org/mailman/listinfo/ironruby-core) * * * Ironruby-core mailing list removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [http://rubyforge.org/mailman/listinfo/ironruby-core](http://rubyforge.org/mailman/listinfo/ironruby-core)