Thanks, Wade.

This seems quite helpful; the crash otherwise seems rather problematic for 
the user.

Will, by any chance, this patch eventually propagate to the XO-1 (Sugar 82), 
which shows identical behavior? (I.e., will it be an update to its OLPCsound 
5.08? Just asking; I don't suppose its a realistic possibility, and 
certainly not anything of major importance.)

Art Hunkins

----- Original Message ----- 
From: "Wade Brainerd" 
To: 
Sent: Thursday, October 15, 2009 10:31 PM
Subject: [Cs-dev] patch for incomplete CSOUND segfault


> Hi all,
>
> When a sound fails to compile (e.g. SetJmp is invoked) the CSOUND can
> be left in an incomplete state.  Calling a performance function on an
> incomplete CSOUND, or starting a performance thread (part of the SWIG
> interfaces) can lead to a segfault.
>
> I encountered this while testing Art Hunkins' OurMusic Sugar activity.
> The segfault occurred when I opened a .csd file that required a MIDI
> input device, and I did not have one in my machine.
>
> I developed a patch and posted it to this Fedora bug:
> https://bugzilla.redhat.com/show_bug.cgi?id=529293
> The patch delays setting the COMP flag until csoundCompile returns
> success.  The performance functions check for the presence of the COMP
> flag before performing.
>
> Best,
> Wade
>
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