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Re: (ITS#3665) Multi-Listener Thread Support

Howard Chu writes:
> Unfortunately, at this time writing lockless algorithms means
> resorting to heavily machine-dependent code and we've been trying to
> stick to standardized e.g. POSIX APIs. It would be pretty easy to
> write a CPU-cache-friendly producer/consumer queue in assembly
> language for a few specific architectures, and maybe doable using
> compiler-specific intrinsics, but our portability would go out the
> window.

Portability just means there should be a fall-back implementation which
uses the ldap_pvt_thread_*() locking functions.  Or if it is made a
separate library from OpenLDAP, it could use macros which default to
pthread_*() but could be overridden to use ldap_pvt_thread_*().