sbwait
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_RCV);
if ((error = sbwait(so, SO_SND)) != 0) {
error = sbwait(so, SO_RCV);
error = sbwait(so, SO_SND);
error = sbwait(so, SO_RCV);
sbwait(xprt->xp_socket, SO_SND);
sbwait(ct->ct_socket, SO_SND);
int sbwait(struct socket *, sb_which);