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Subject:	RE: Strange fork() behaviour under cygwin v1.3.1
Date:	Tue, 22 May 2001 10:27:55 +1000
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Thread-Topic:	Strange fork() behaviour under cygwin v1.3.1
Thread-Index:	AcDiVPVbhG1jR9vpSGaYYw9iARoPKwAAFKoA
From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	"Andrew de Quincey" <andrew AT orbital DOT co DOT uk>, <cygwin AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id UAA15681

> -----Original Message-----
> From: Andrew de Quincey [mailto:andrew AT orbital DOT co DOT uk]
> > Rob wrote
> > > -----Original Message-----
> > > From: Andrew de Quincey [mailto:andrew AT orbital DOT co DOT uk]
> > > Hi, I've been playing with the jabber server under win32...
> > > and I've run
> > > into a slight problem. The following program illustrates it:
> > >
> >
> From the "non-preemptive-ness" & the lack of any pthread or 
> win32 thread
> functions in it, it sounds like an entirely user-space 
> threading library.

Oh. Well I suggest you build a debug pth library, and optionally a debug
cygwin library (see the cvs source web page for build instructions), and
see if pth is doing funky stuff that might confuse fork(). If no actual
threads are involved, there shouldn't be any particular problems :].
Also update to cygwin 1.3.2 just-in-case. 
 
> > ****** IMPORTANT *******
> > When writing or testing threading code, ___always___ check 
> return values
> > and error flags.
> 
> That stuff was copied directly out of the jabber server source! :)))
> 

Ouch. Uhmm, yeah. Ouch. 

Rob

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