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From: sar0@cbnewsl.att.com (stephen.a.rago)
Newsgroups: comp.unix.wizards
Subject: Re: I_FDINSERT in streamio(4)
Summary: use a module
Message-ID: <1990Aug13.172058.8018@cbnewsl.att.com>
Date: 13 Aug 90 17:20:58 GMT
References: <WS.90Aug9184533@karl.tools.uucp>
Organization: AT&T Bell Laboratories
Lines: 16

In article <WS.90Aug9184533@karl.tools.uucp>, ws@tools.uucp (Wolfgang Solfrank) writes:
> Currently I'm trying to write a trace module and/or driver for
> streams tracing. I need it for easier testing and debugging of
> a streams protocol stack we are developping here. I'd like to
> let the traced driver/modules and the application as much alone
> as possible. So I face the problem of duplicating all messages
> that are sent thru the protocol stack to the trace application.
> 
> How do I tell the trace driver what streams stack to intercept?

Make the trace driver both a module and a driver, and push it on
the stream in the place you'd like to debug.  Use the module to log
messages and use the driver to recover them.

Steve Rago
sar@attunix.att.com