TCP_NOPUSH
#ifdef TCP_NOPUSH
setsockopt(conn->sd, IPPROTO_TCP, TCP_NOPUSH, &val, sizeof(val));
#ifdef TCP_NOPUSH
setsockopt(conn->sd, IPPROTO_TCP, TCP_NOPUSH, &val,
#ifdef TCP_NOPUSH
setsockopt(fd, IPPROTO_TCP, TCP_NOPUSH, &v, sizeof(v));
#if defined(SO_NOSIGPIPE) || defined(TCP_NOPUSH)
#ifdef TCP_NOPUSH
setsockopt(sd, IPPROTO_TCP, TCP_NOPUSH, &opt, sizeof(opt));