P11_SESSION_IN_USE
if (slot->flags & P11_SESSION_IN_USE)
slot->flags |= P11_SESSION_IN_USE;
slot->flags |= P11_SESSION_IN_USE;
if ((slot->flags & P11_SESSION_IN_USE) == 0)
slot->flags &= ~P11_SESSION_IN_USE;
if (p->slot[i].flags & P11_SESSION_IN_USE)