Writing a daemon that can be used with service ?

I'm confused...

This web site tell you how to write a daemon:
http://www.linuxprofilm.com/articles/linux-daemon-howto.html#s1

This looks like it produces a straight executable with an infinite while
loop. What it doesn't say is how to stop the daemon gracefully.

When I've used daemons in the past I started and stopped them using
'service' i.e.
# service smb start
# service httpd stop

How do I write the kind of daemon that is used with service ?

Thanks
dom


.

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