Hi again,
  Sorry for the vogue explanation.  The 'service' I meant is some kind of 
communication service.  In my case, it is the upper layer communication 
stack, i.e. Session layer, Presentation layer, and the lower part of 
Application layer (Dialogue services part).  I'm not sure if this will 
clarify things up for you, but that's what I was assigned to look at.
  Now I'm looking at IPC, which comes from my superior's suggestions.  He 
said there need to be data exchange between processes so IPC is required.  I 
looked into articles from UC Berkley and other sources and found many 
helpful tips.  If you have any other suggestions, please don't be hesitate 
to inform me.  Thanks again.

Best regards,
Neng


>From: Giles Lean <giles@nemeton.com.au>
>To: "Chonla Banpha" <gnnetbsd@hotmail.com>
>CC: netbsd-help@netbsd.org
>Subject: Re: Question about developing on Netbsd
>Date: Mon, 26 Mar 2001 18:41:42 +1000
>
> >   I'm assigned to investigate on building a program that will be 
>'service'
> > for other programs in netbsd.  First of all, I don't know how to develop 
>a
> > 'service' program, so is there any good sources that tell me that?
>
>It's not clear to me what you mean by a "service" program.  Perhaps it
>is a NT term?  Can you explain some more, and perhaps provide an
>example of what you're talking about?
>
>Some suggestions:
>
>1. read W. Richard Steven's "Advanced Programming in the Unix
>    Environment".  This is the best book I know of about programming on
>    Unix systems.
>
>2. look at the NetBSD source for similar programs to the "service" you
>    want to write, and see how they are implemented
>
>3. look at the daemon(3) function (but I'm really guessing here!)
>
>You'll not find NetBSD too different from other Unix systems for
>writing applications.
>
>Good luck,
>
>Giles
>

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