Re: java.nio ramblings (was Re: What's Left for MingW 3.3)

[Michael Koch <konqueror at gmx dot de>]

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Am Freitag, 25. April 2003 15:10 schrieb Mohan Embar:
> Hi Michael,
>
> >> I don't know what they JDK does, but see a possible solution in
> >> the context of GCJ:
> >>
> >> - move java.net.PlainSocketImpl to gnu.java.net (which doesn't
> >> exist yet) and make it (necessarily) public; enhance it to
> >> support all the functionality needed for java.nio.channels -
> >> create a package-private subclass of java.net.ServerSocket
> >> called java.nio.channels.ChannelServerSocket (you could also
> >> make this a private nested or inner class of
> >> ServerSocketChannelImpl) and in its constructor create and
> >> delegate to PlainSocketImpl
> >> - for the non-ServerSocket-related functions in
> >> ServerSocketChannel, delegate directly to the PlainSocketImpl
> >> that ChannelServerSocket is holding onto
> >>
> >> This would solve both of the problems I mentioned.
> >
> >Thats a good solution. This implies that we dont support user
> > supplied implementations of SocketImpl and DatagramSocketImpl. I
> > think thats okay.
>
> When you don't say "don't support user-suppled implementations", do
> you mean:
>
> - for the case of constructing an explicit instance of
> java.net.Socket using one of its overloaded constructors (let's
> call this case A)? - or the ServerSocket returned by
> java.nio.channels.ServerSocketChannel.socket() (case B)?
>
> If you mean case A, I don't see how my solution precludes
> user-supplied implementations.
>
> If you mean case B, the java.nio specification explicitly disallows
> user-supplied implementations. See:
>
> http://java.sun.com/j2se/1.4.1/docs/api/java/nio/channels/ServerSoc
>ketChannel.html
>
> ("...nor is it possible to specify the SocketImpl object...")

Ah, then we can ignore this case. Good to know.

Michael
- -- 
Homepage: http://www.worldforge.org/
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