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Re: New IO Native Provider Interface

From: Brian Jones
Subject: Re: New IO Native Provider Interface
Date: 06 Mar 2003 08:04:31 -0500
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

"Jeroen Frijters" <address@hidden> writes:

> > > - write(byte[] buf, long offset, long length) should not 
> > use longs for
> > > offset and length
> > 
> > I take it that you are referring to the Java write() method I 
> > added to the
> > FileDescriptor class and not the nativeWriteBuf() method.  I'm ok with
> > modifying this.  
> Yes.
> >I do typically want to use longs for native calls.
> Why? Is it expensive to use ints on 64 bit architectures?
> > > - nativeReadByte shouldn't return a long
> > 
> > Why not?  All of the rest of the native methods that return values
> > return longs.
> I missed the others. IMHO only file offsets and native pointers should
> be long, all others should be the most natural type. In this case I
> think that's int.

I couldn't find an example where 'read' methods ever returned
something other than int.  I think that offsets could be 'long' on
some file systems but the public API is limited on a number of classes
in this respect.

Brian Jones <address@hidden>

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