Symbol: isbackground
sys/kern/tty.c
1710
if (pp && isbackground(pp, tp)) {
sys/kern/tty.c
2027
if (pp && isbackground(pp, tp) &&
sys/kern/tty.c
890
while (isbackground(p, tp) && !(p->p_flags & P_PPWAIT) &&
sys/kern/tty_pty.c
444
while (isbackground(p, tp)) {