PERFORCE change 123562 for review

[Fredrik Lindberg]

http://perforce.freebsd.org/chv.cgi?CH=123562

Change 123562 by fli at fli_nexus on 2007/07/16 00:45:36

	Add an "object allocator", it's used to allocate, common,
	fixed sized structures that requires many allocations.
	When an object is freed they are put on a free list for further
	use, memory is re-claimed when objects haven't been used for
	a certain amount of time. 

Affected files ...

.. //depot/projects/soc2007/fli-mdns_sd/mdnsd/objalloc.c#1 add
.. //depot/projects/soc2007/fli-mdns_sd/mdnsd/objalloc.h#1 add

Differences ...