Availability:
:- use_module(library(unix)).
[semidet]sysconf(+Conf)sysconf(1) for details. Conf
is a term Config(Value), where Value is always an integer. Config is the sysconf()
name after removing =_SC_= and conversion to lowercase. Currently
support the following configuration info:
arg_max, child_max, clk_tck, open_max, pagesize,
phys_pages, avphys_pages, nprocessors_conf
and
nprocessors_onln. Note that not all values may be supported
on all operating systems.