Re: Anyone interested in implementing Etc module for Mono?

raker_t · April 4, 2010, 8:35pm

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. [email protected]
Sent: Sunday, April 04, 2010 10:58 AM
To: [email protected] [email protected]
Subject: Re: [Ironruby-core] Anyone interested in implementing Etc
module for Mono?

If you run â€œmspec ci library\etcâ€, that runs the real RubySpec specs.
irtests does run a command like â€œmspec ci libâ€ which will run the Etc
RubySpec specs. 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 â€œplatform_is :windowsâ€ or â€œplatform_is_not :windowsâ€ 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 â€œmspec â€“trâ€ 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 futureâ€¦

From: [email protected]
[mailto:[email protected]] On Behalf Of Ryan R.
Sent: Sunday, April 04, 2010 9:54 AM
To: [email protected]
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.
<[email protected]mailto:[email protected]> 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:
[email protected]mailto:[email protected]
[mailto:[email protected]] On Behalf Of Tomas M.
Sent: Saturday, April 03, 2010 6:01 PM
To: [email protected]mailto:[email protected]
Subject: Re: [Ironruby-core] Anyone interested in implementing Etc
module for Mono?

That is a bug. Make it a module.

Tomas

From:
[email protected]mailto:[email protected]
[mailto:[email protected]] On Behalf Of Ryan R.
Sent: Saturday, April 03, 2010 5:02 PM
To: [email protected]mailto:[email protected]
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.
<[email protected]mailto:[email protected]>
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
â€¦
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

â€¦
end
end

From:
[email protected]mailto:[email protected]
[mailto:[email protected]mailto:[email protected]]
On Behalf Of Ryan R.
Sent: Saturday, April 03, 2010 3:59 PM

To: [email protected]mailto:[email protected]
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

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: [email protected]mailto:[email protected]
LinkedIn: http://www.linkedin.com/in/ryanriley
Blog: http://wizardsofsmart.net/
Twitter: @panesofglass
Website: http://panesofglass.org/
On Sat, Apr 3, 2010 at 2:30 PM, Ryan R.
<[email protected]mailto:[email protected]> wrote:
Sure!
Mono::Unix::Native::Passwdhttp://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Passwd
and
Mono::Unix::Native::Grouphttp://www.go-mono.com/docs/index.aspx?link=T:Mono.Unix.Native.Group
that are returned from the
Mono::Unix::Native::Syscallhttp://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
githubhttp://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: [email protected]mailto:[email protected]
LinkedIn: http://www.linkedin.com/in/ryanriley
Blog: http://wizardsofsmart.net/
Twitter: @panesofglass
Website: http://panesofglass.org/
On Sat, Apr 3, 2010 at 11:25 AM, Tomas M.
<[email protected]mailto:[email protected]>
wrote:
Can you give an example of where you need the conversions?

Tomas

From:
[email protected]mailto:[email protected]
[mailto:[email protected]mailto:[email protected]]
On Behalf Of Jim D.
Sent: Saturday, April 03, 2010 11:00 AM

To: [email protected]mailto:[email protected]
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.
<[email protected]mailto:[email protected]>
Sent: Saturday, April 03, 2010 12:13 AM
To: [email protected]mailto:[email protected]
<[email protected]mailto:[email protected]>
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.

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