pgfind9
Locate a process group by number
Usage
#include <sys/param.h>
#include <sys/proc.h>
struct pgrp *
pgfind(pid_t pgid);
Overview
The pgfind() function takes a pgid as its argument and returns a pointer to the pgrp structure whose pg_id is specified in the argument.
pgfind() locks the pgrp structure that is returned.
Return values
The pgfind() function returns NULL on failure or a pointer to a pgrp structure on successful completion.