SBLOCKWAIT
if ((error = sblock(&so->so_snd, SBLOCKWAIT(flags))) != 0)
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0)
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) {
if ((error = sblock(&so->so_snd, SBLOCKWAIT(flags))) != 0)
error = sblock(&so->so_snd, SBLOCKWAIT(flags));
error = sblock(&so->so_snd, SBLOCKWAIT(flags));