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From: "Brett Serkez" <techie AT serkez DOT net>
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Subject: Re: services not starting with 20060104 snapshot
In-Reply-To: <Pine.GSO.4.63.0601042045200.1754@slinky.cs.nyu.edu>
Date: Wed, 04 Jan 2006 21:12:02 -0500
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> > Try using a graphical debugger like ddd or insight.  Should be able
> > to start either as the service,
>
> Huh?  No, that doesn't work.  I need a service wrapper program (like
> cygrunsrv), but cygrunsrv can't spawn processes, apparently.

I see.  While I've not used this method with services per se, I've used
it with other background processes, didn't foresee the service_main.

You should be able attach to the running service process with gdb, from
the
manual:

You can, instead, specify a process ID as a  second  argument,  if  you
want to debug a running process:

       gdb(1,4) program 1234

The trick is where will the program be when you attach.  To resolve
this, code *like* the following can be inserted just prior to the
point you want to start debugging:

{ 
int a = 1;

   while ( a )  ;

}

When you gain control you will be in the while, assign a value of 0
to a and then start stepping thru the remaining code.

Brett
----------------------------------------------------------------
Brett C. Serkez, Techie



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