s_count
} else if (in[0] >= s_base && in[0] < s_base + s_count) {
if (u < s_base || u >= s_base + s_count)
refcount_init(&session0.s_count, 1);
refcount_acquire(&s->s_count);
if (refcount_release(&s->s_count)) {
pgrp->pg_session->s_count,
refcount_init(&sess->s_count, 1);
tp->t_session->s_count, tp->t_session->s_leader,
u_int s_count; /* Ref cnt; pgrps in session - atomic. */