CCF_ABC_SENTAWND
(CC_ABC(ccv) && (ccv->flags & CCF_ABC_SENTAWND)))) {
ccv->flags &= ~CCF_ABC_SENTAWND;
if (ccv->flags & CCF_ABC_SENTAWND)
ccv->flags &= ~CCF_ABC_SENTAWND;
tcp->tcp_ccv.flags |= CCF_ABC_SENTAWND;
tcp->tcp_ccv.flags &= ~CCF_ABC_SENTAWND;