Re: Documentation suggestion

• To: Godmar Back <gback@cs.utah.edu>
• Subject: Re: Documentation suggestion
• From: Umar Saif <Umar.Saif@cl.cam.ac.uk>
• Date: Thu, 31 Aug 2000 16:26:39 +0100
• cc: Umar.Saif@cl.cam.ac.uk (Umar Saif), oskit-users@cs.utah.edu, Umar.Saif@cl.cam.ac.uk
• In-Reply-To: Your message of "Thu, 31 Aug 2000 08:26:36 MDT." <200008311426.IAA20150@faith.cs.utah.edu>
• Sender: owner-oskit-users@fast.cs.utah.edu

> For instance, if an object exports multiple interfaces (via multiple
> function pointers), the function pointers are at multiple positions,
> not all of which can be the first.


I think you mean to say the function table pointers ?

>  See oskit/freebsd/net/socketcomio.c
> for an example. 

Yup, you are using the dreaded trick for multiple interface objects. 

#ifndef offsetof
#define offsetof(type, member) ((size_t)(&((type *)0)->member))
#endif

> We have adopted the convention to use the first n
> slots in our implementations, but this convention is entirely
> arbitrary.  

Of course. 

Thanks,
Umar
 

• Re: Documentation suggestion
• From: Godmar Back <gback@cs.utah.edu>

• Prev: Compilation problem
• Next: OSKit 20000901 snapshot; Labor Day Snapshot
• Index(es):
  • Main
  • Thread