##
# \file

# To each interface a set of caller functions exist, that take an instance
# of an object and then in turn call the implementation for the class of
# this object. If there is none within the class it looks into its
# parent class and so forth.
#
# This is somewhat similar to late binding in real OOP languages, but
# by far not so elaborated. This is not a real object oriented language
# and will surely never ever provide all features these have.
#
# That said it has proven very usefull for me to orgnize code and prevent
# code duplication.
#
# \author	Georg Hopp
#
# \copyright
# Copyright © 2014 Georg Hopp
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

gather_cpu_info() {
	[ -z "${NCPUS}" ] || return

	has_class "GNU" && {
		export NCPUS=$(${NPROC})
		set_class ${NCPUS}cpus
	}

	has_class "Linux" && {
		eval $(${LSCPU} | ${AWK} -F: '
		{ sub(/^ */,"",$2) }
		/Byte Order/ {
			sub(/ /,"_",$2);
			print "export BYTE_ORDER=\"" $2 "\";"
		}
		/CPU op-mode/ {
			sub(/,/,"",$2);
			print "export OP_MODES=\"" $2 "\";"
		}
		/CPU(s):/ { print "export NCPUS=" $2 ";" }
		/Virtualization/ { print "export CPU_VIRT=\"" $2 "\";" }')

		set_class ${NCPUS}cpus ${CPU_VIRT} ${BYTE_ORDER} ${OP_MODES}
	}

	has_class "FreeBSD" && {
		export NCPUS=$(${SYSCTL} kern.smp.cpus | cut -d\  -f2)
		set_class ${NCPUS}cpus
	}
}

# vim: set ts=4 sw=4: