Subject: Re: [ecasound] Porting ecasound to FreeBSD 4.2 (take 2)
From: Kai Vehmanen (email@example.com)
Date: Tue Jan 09 2001 - 15:14:22 EET
On Wed, 20 Dec 2000, Antoine Beaupre (LMC) wrote:
> Actually, what I did was to add a AC_CHECK_FUNCS(mlockall) macro to
> configure.in. I got inspired from mysqld configuration (which would like
> #ifdef HAVE_MLOCKALL
> if (::mlockall...
Btw; I checked the mlockall() man page, and it seems that you can
check for mlockall with
... this should be defined in 'unistd.h'. There also other potentially
useful defines (threads, mmap, select, etc).
> Also, all this mlockall stuff confuses me. The function is not
> documented anywhere, but _seems_ to be there. It's declared in
> sys/mmap.h (I think) and surrounded by a #ifdef _POSIX..._VISIBLE, but
> then if it wouldn't be declared, it would all fail before linking.
Hmm, it might be implemented outside the C-library. mlockall() is
important for secure memory operations (encryption for instance, gpg/pgp
complains if it can't lock its memory area). So mlockall() code might
be located in a separate library in FreeBSD.
> Would you happen to know why it complains about f_prealloc()? Is it used
> somewhere in the source?
No, not in ecasound sources.
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