advice wanted on Classpath merging

["Nic Ferrier" <nferrier at tapsellferrier dot co dot uk>]

I'd like to port my GCJ PlainSocketImpl changes into the Classpath
code.


I have a problem though.

My current code uses select. GCJ requires that I use _Jv_select
(defined in posix.cc).
Classpath, of course, doesn't have a _Jv_select and would just use
select().

Also Classpath uses JNI mappings where GCJ uses CNI. 
The Classpath JNI simply call an additional c module they call:
javanet

So there are two issues that confront me:

1. how to implement select

2. how to handle the native code mapping


Dealing with (1) first:

The GCJ code for select might benefit Classpath as well... so I could
easily abstract the functionality of _Jv_select to a module that could
be used by both Classpath and GCJ. But it might be difficult to do
that in a way that's portable between the 2 projects.

Alternately I could use the pre-processor to check what call I should
make for select() functionality.


And now (2)

What is the form for native code mapping? I presume that all of GCJ's
native code should be CNI and no JNI included? 

If so I can just have the CNI and Classpath's JNI call the arren
javanet module (as long as I keep the CNI and JNI native requirements
the same).


Any thoughts or ideas are gratefully received.


Nic