PSN_HANDLECLOSE
psn->stat &= ~PSN_HANDLECLOSE;
if (psn->stat & PSN_HANDLECLOSE && psn->fhand_r) {
if (psn->stat & PSN_HANDLECLOSE && psn->fhand_w) {
psn->stat |= PSN_HANDLECLOSE;
if (psn->stat & PSN_HANDLECLOSE && (psn->stat & PSN_LAZYWAIT_R) == 0)
if (psn->stat & PSN_HANDLECLOSE && (psn->stat & PSN_LAZYWAIT_W) == 0)