pgrpdump

早期freebsd实现

#	@(#)pgrpdump	8.1 (Berkeley) 6/10/93

define allpgrps
	set $lim = pidhashmask + 1
	set $i = 0
	while ($i < $lim)
		if (pgrphash[$i])
			printf "--- pgrphash[%d] ---\n", $i
			pgrpchain pgrphash[$i]
		end
		set $i++
	end
end

define pgrpchain
	set $pgrp = (struct pgrp *)$arg0
	while ($pgrp)
		print *$pgrp
		set $pgrp = $pgrp->pg_hforw
	end
end