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Date: Thu, 03 Mar 2005 13:02:51 -0600
To: "Craig Rodrigues" <rodrigc@crodrigues.org>
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From: "Jeremy Messenger" <mezz7@cox.net>
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Subject: Re: Mono's XSP crashes on browser connection
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On Thu, 3 Mar 2005 10:15:44 -0500, Craig Rodrigues  
<rodrigc@crodrigues.org> wrote:

> On Thu, Mar 03, 2005 at 10:32:41PM +0800, David Xu wrote:
>> whether _POSIX_THREAD_PROCESS_SHARED is defined or not in
>> source code,  but he failed to respect this macro at many places, so the
>> macro is rather bogus.

David, thanks for dig it deeper!

> Side note:
>
> Keep in mind, that according to the POSIX/Single Unix Specification
> standards, if a _POSIX_* macro is defined, but
> is -1, that means that the feature is unsupported.
> ( See:  
> http://www.opengroup.org/onlinepubs/009695399/basedefs/unistd.h.html ).
>
> We define a lot of POSIX macros like this in <unistd.h>.

Do you need anyone to test your ttyname_r patch? I can try to test it with  
mono here on RELENG_5 and see how it goes. I don't know ttyname_r that  
much, but I can dig in web/google.

Cheers,
Mezz

> The convention on Linux's glibc is to only define a _POSIX
> macro if the feature is supported.  Consequently, a lot of
> software written on Linux which assumes this convention will break
> on FreeBSD.
>
> The Linux glibc convention is IMHO more intuitive,
> but FreeBSD is more "standards" conformant.
>
> So the Mono code is not entirely doing the right thing
> with respect to checking _POSIX_THREAD_PROCESS_SHARED....but
> you mention that the Mono code isn't even consistent in checking this
> macro.  Bleh. :)


-- 
mezz7@cox.net  -  mezz@FreeBSD.org
FreeBSD GNOME Team
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